• Piri Üniversitesi

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1
Retraction notice to “Impinging jets controlled by fluidic input signal” Sensors & Actuators: A. Physical 249 (2016) 85-92
Dergi Makalesi

Dergi Makalesi Open Access
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yıl:
2018
Retraction notice to “Impinging jets controlled by fluidic input signal” Sensors & Actuators: A. Physical 249 (2016) 85-92
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DOI: 10.1016/j.sna.2018.03.035
Cilt: 276
Sayı: 0
Sayfa: 346-0
ISSN: 0924-4247
2
Corrigendum to “Using electric actuation and detection of oscillations in microcantilevers for pressure measurements” Sensors and Actuators A: Physical
Dergi Makalesi

Dergi Makalesi Open Access
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Gayatri Keskar , Bevan Elliott , Jay Gaillard , Malcolm J. Skove , Apparao M. Rao
Yıl:
2008
Corrigendum to “Using electric actuation and detection of oscillations in microcantilevers for pressure measurements” Sensors and Actuators A: Physical
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DOI: 10.1016/j.sna.2008.08.015
Cilt: 148
Sayı: 2
Sayfa: 472-0
ISSN: 0924-4247
3
Corrigendum to “Magnetoresistive thin film sensor for active RF power (Sensors and Actuators A 69 (1998) 21–26)”
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
V. Vountesmeri , A. Martynyuk
Yıl:
1998
Corrigendum to “Magnetoresistive thin film sensor for active RF power (Sensors and Actuators A 69 (1998) 21–26)”
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DOI: 10.1016/S0924-4247(98)00189-7
Cilt: 71
Sayı: 3
Sayfa: 244-0
ISSN: 0924-4247
4
Erratum to “acoustic wave thermal sensitivity: temperature sensors and temperature compensation in microsensors” sensors and actuators A 44 (1993) 177
Dergi Makalesi

Dergi Makalesi Open Access
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
M. Hoummady , D. Hauden
Yıl:
1994
Erratum to “acoustic wave thermal sensitivity: temperature sensors and temperature compensation in microsensors” sensors and actuators A 44 (1993) 177
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DOI: 10.1016/0924-4247(94)00843-4
Cilt: 45
Sayı: 2
Sayfa: 167-0
ISSN: 0924-4247
5
Corrigendum to “Design and development of multi-node based wireless system for efficient measuring of resistive and capacitive sensors” Sens.,Actuators A: Phys. 189 (2013) 276–287
Dergi Makalesi

Dergi Makalesi Open Access
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Essa Jafer , Christian Serge Ibala
Yıl:
2015
Corrigendum to “Design and development of multi-node based wireless system for efficient measuring of resistive and capacitive sensors” Sens.,Actuators A: Phys. 189 (2013) 276–287
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DOI: 10.1016/j.sna.2014.12.017
Cilt: 225
Sayı: 0
Sayfa: 148-0
ISSN: 0924-4247
6
The fundamentals of sensors
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Th. Kwaaitaal
Yıl:
1993
The fundamentals of sensors Sensors and actuators are based on the transfer of a physical quantity from one energy domain into another. Sensors and actuators can be subdivided into three groups, depending on the physical principles involved: static cross effects, dynamic cross effects and The thermodynamic basis, resulting in the derivations of the phenomenological equations and practical applications of the theory on a number of effects
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Sensors and actuators are based on the transfer of a physical quantity from one energy domain into another. These are the well-known radiant, mechanical, electrical, magnetic, thermal, and chemical domains. Sensors and actuators can be subdivided into three groups, depending on the physical principles involved: static cross effects, dynamic cross effects and modulating effects. The thermodynamic basis, resulting in the derivations of the phenomenological equations and practical applications of the theory on a number of effects, is treated.
DOI: 10.1016/0924-4247(93)80205-U
Cilt: 39
Sayı: 2
Sayfa: 103-110
ISSN: 0924-4247
7
Sensing means and sensor shells: a new method of comparative study of piezoelectric, piezoresistive, electrostatic, magnetic, and optical sensors
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
M. Tabib-Azar , A. Garcia-Valenzuela
Yıl:
1995
Sensing means and sensor shells: a new method of comparative study of piezoelectric, piezoresistive, electrostatic, magnetic, and optical sensors The immense computational power of today's processors cannot be fully utilized unless appropriate sensors and actuators are developed to link them with A method is presented here to compare different sensors with each other and to evaluate their relative merits. On the basis of physical considerations, sensors are decomposed into two essential building blocks: a sensor shell and a sensing mean. Displacement sensors
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The immense computational power of todays processors cannot be fully utilized unless appropriate sensors and actuators are developed to link them with the outside world. A method is presented here to compare different sensors with each other and to evaluate their relative merits. On the basis of physical considerations, sensors are decomposed into two essential building blocks: a sensor shell and a sensing mean. A figure of merit is defined and 11 different types of sensors, having the same sensing shells, are analyzed and compared with each other.
DOI: 10.1016/0924-4247(94)00985-Q
Anahtar Kelimeler: Comparative sensor studies, Displacement sensors, Sensing means, Sensor shells
Cilt: 48
Sayı: 2
Sayfa: 87-100
ISSN: 0924-4247
8
Mechanical sensors and actuators
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
M. Pasquale
Yıl:
2003
Mechanical sensors and actuators A review on mechanical sensing techniques based on magnetic methods is presented, with special focus on strain sensing in civil engineering. Magnetic sensors Magnetic actuators
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A review on mechanical sensing techniques based on magnetic methods is presented, with special focus on strain sensing in civil engineering. Some examples and features of magnetic actuation with giant magnetostrictive and magnetic shape memory alloys will be shown.
DOI: 10.1016/S0924-4247(03)00153-5
Anahtar Kelimeler: Magnetic sensors, Magnetic actuators, Magnetic shape memory, Magnetostriction
Cilt: 106
Sayı: 1-3
Sayfa: 142-148
ISSN: 0924-4247
9
The role of new materials in the development of magnetic sensors and actuators
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
D.C. Jiles , C.C.H. Lo
Yıl:
2003
The role of new materials in the development of magnetic sensors and actuators Broadly magnetic sensors and actuators rely on only a few basic principles. under the action of a magnetic field, such as magnetoresistance, magneto-optics or magnetoelasticity for sensors based on magnetoelectronics (Proceedings In some cases the identification of new materials can open up new applications for magnetic sensors and actuators which were previously not possible. Actuators Magnetic sensors
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Broadly magnetic sensors and actuators rely on only a few basic principles. These include the law of induction, for magneto-inductive devices; the Ampere force law, for magnetomechanical sensors; and changes in materials properties under the action of a magnetic field, such as magnetoresistance, magneto-optics or magnetoelasticity for sensors based on magnetoelectronics (Proceedings of the 5th Conference on Magnetic Materials, Measurements and Modeling: symposium on magnetic sensors materials and devices, Ames, Iowa, USA, May 16–17, 2002). The identification and characterization of new materials with enhanced magnetic properties is important for the development of improved sensors and actuators. In some cases the identification of new materials can open up new applications for magnetic sensors and actuators which were previously not possible.
DOI: 10.1016/S0924-4247(03)00255-3
Anahtar Kelimeler: Actuators, Magnetic sensors, Magnetic-martensitic materials
Cilt: 106
Sayı: 1-3
Sayfa: 3-7
ISSN: 0924-4247
10
Evolution of 3D printed soft actuators
Derleme Makalesi

Derleme Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Ali Zolfagharian , Abbas Z. Kouzani , Sui Yang Khoo , Amir Ali Amiri Moghadam , Ian Gibson , Akif Kaynak
Yıl:
2016
Evolution of 3D printed soft actuators Developing soft actuators and sensors by means of 3D printing has become an exciting research area. Compared to conventional methods, 3D printing enables rapid prototyping, custom design, and single-step fabrication of actuators and sensors that have This paper presents a comprehensive review of the existing 3D printed actuators.
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Developing soft actuators and sensors by means of 3D printing has become an exciting research area. Compared to conventional methods, 3D printing enables rapid prototyping, custom design, and single-step fabrication of actuators and sensors that have complex structure and high resolution. While 3D printed sensors have been widely reviewed in the literature, 3D printed actuators, on the other hand, have not been adequately reviewed thus far. This paper presents a comprehensive review of the existing 3D printed actuators. First, the common processes used in 3D printing of actuators are reviewed. Next, the existing mechanisms used for stimulating the printed actuators are described. In addition, the materials used to print the actuators are compared. Then, the applications of the printed actuators including soft-manipulation of tissues and organs in biomedicine and fragile agricultural products, regenerative design, smart valves, microfluidic systems, electromechanical switches, smart textiles, and minimally invasive surgical instruments are explained. After that, the reviewed 3D printed actuators are discussed in terms of their advantages and disadvantages considering power density, elasticity, strain, stress, operation voltage, weight, size, response time, controllability, and biocompatibility. Finally, the future directions of 3D printed actuators are discussed.
DOI: 10.1016/j.sna.2016.09.028
Anahtar Kelimeler: 3D printing, Soft actuator, Soft robot, Rapid prototyping
Cilt: 250
Sayı: 0
Sayfa: 258-272
ISSN: 0924-4247
11
Sensors and Actuators publishes
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Dergi Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yıl:
2003
Sensors and Actuators publishes
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DOI: 10.1016/S0924-4247(03)00244-9
Cilt: 105
Sayı: 2
Sayfa: 226-227
ISSN: 0924-4247
12
Surface resistance experiments with IPMC sensors and actuators
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
A. Punning , M. Kruusmaa , A. Aabloo
Yıl:
2007
Surface resistance experiments with IPMC sensors and actuators This paper describes experiments with the surface resistance of IPMC actuators and sensors. We measure the surface resistance of samples working as sensors or as a voltage driven actuators, as well as when insulated. Our simulations with SPICE show that the equivalent circuit closely models the actual behaviour of IPMC sensors and actuators.
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This paper describes experiments with the surface resistance of IPMC actuators and sensors. We measure the surface resistance of samples working as sensors or as a voltage driven actuators, as well as when insulated. The results show that in all cases the surface resistance of a sample is highly correlated to material curvature. Based on these observations we present an equivalent circuit, with variable resistors representing surface resistance, that models IPMC materials. Our simulations with SPICE show that the equivalent circuit closely models the actual behaviour of IPMC sensors and actuators. We show that since the IPMC model works as a delay line with changing resistors, the curvature of the IPMC sample at a given point depends on the surface resistance. This, in turn, affects further bending of the sample. The modified equivalent circuit also explains the hysteresis of IPMC actuators as the signals along the surface are delayed.
DOI: 10.1016/j.sna.2006.03.010
Anahtar Kelimeler: Ion polymeru2013metal composite, Sensor, Actuator, Surface resistance
Cilt: 133
Sayı: 1
Sayfa: 200-209
ISSN: 0924-4247
13
Smart sensors in flexible manufacturing systems
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Michel Robert , Jean Michel Rivière , Jean Luc Noizette , Frédéric Hermann
Yıl:
1993
Smart sensors in flexible manufacturing systems Smart sensors and smart actuators are becoming a reality in process control and manufacturing industries. In this paper, we present the reflections of structured working groups that are concerned with the problem of the definition of smart sensors and actuators This paper also gives a census of the benefits to be derived from the use of smart sensors, followed by a functional analysis of smart sensor concept.
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Smart sensors and smart actuators are becoming a reality in process control and manufacturing industries. In this paper, we present the reflections of structured working groups that are concerned with the problem of the definition of smart sensors and actuators and the integration of these components into industrial processes. This paper also gives a census of the benefits to be derived from the use of smart sensors, followed by a functional analysis of smart sensor concept. This analysis is necessary to build a reference model. The development of this reference model and a more detailed description of the measurement function are also presented.
DOI: 10.1016/0924-4247(93)80041-E
Cilt: 37-38
Sayı: 0
Sayfa: 239-246
ISSN: 0924-4247
14
Bio-inspired 3D-printed piezoelectric device for acoustic frequency selection
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Roger Domingo-Roca , Benjamin Tiller , Joseph Curt Jackson , James Frederick Charles Windmill
Yıl:
2018
Development of 3D-printed devices, sensors, and actuators has become increasingly popular in recent years due to low cost, rapid production, and device This personalization process allows the development of devices with unique physical properties and phenomena that enhance the desired properties of the Such 3D-printing of functional sensors and actuators provides an insight into the development and enhancement of polymer-based science, with exciting and
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Development of 3D-printed devices, sensors, and actuators has become increasingly popular in recent years due to low cost, rapid production, and device personalization. This personalization process allows the development of devices with unique physical properties and phenomena that enhance the desired properties of the 3D-printed part. Biomimetics is a technique used to develop engineered devices, as organisms present in nature can provide smart and simple solutions to complex problems across a wide range of applications. Locust ears have a simple tympanic membrane with varying thicknesses that allows acoustic frequency selection, as well as presenting nonlinear phenomena. This acoustic frequency selection assists the insect in predation and swarming. This work presents the development of a piezoelectric polymeric material that has been used to 3D-print a new frequency selective piezoelectric sensor inspired by the locust’s tympanic membrane. Such 3D-printing of functional sensors and actuators provides an insight into the development and enhancement of polymer-based science, with exciting and promising potential for the near future.
DOI: 10.1016/j.sna.2017.12.056
Anahtar Kelimeler: Locust, Biomimesis, Piezoelectric, Polymer, 3D-printing
Cilt: 271
Sayı: 0
Sayfa: 1-8
ISSN: 0924-4247
15
Magnetostrictive resonators as sensors and actuators
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Kewei Zhang , Lin Zhang , Liling Fu , Suiqiong Li , Huiqin Chen , Z.-Y. Cheng
Yıl:
2013
Magnetostrictive resonators as sensors and actuators For the resonators with the same resonant frequency, MSMCs exhibit a much higher sensitivity and have a much smaller size than MSPs. These biosensors exhibit a high performance. A new type actuator is introduced using MSPs.
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Two types of magnetostrictive resonators – magnetostrictive microcantilever (MSMC) and magnetostrictive particle (MSP) – have been introduced as sensor platforms. Their principles and advantages as sensor platforms are discussed along with the materials selection. A detailed and complete comparison between the MSMC and MSP is given. It is concluded that for the resonators with the same size, an MSP exhibits a higher sensitivity and has a much higher resonant frequency. For the resonators with the same resonant frequency, MSMCs exhibit a much higher sensitivity and have a much smaller size than MSPs. Using antibody as the sensing element, MSP biosensors for in situ detection of Escherichia coli and Listeria monocytogenes are developed and characterized. These biosensors exhibit a high performance. For example, the MSP-antibody biosensors of 1 mm × 0.3 mm × 15 μm exhibit a detection limit less than 100 cfu/ml for in situ detection of bacterial cell in water. A new type actuator is introduced using MSPs. The MSP actuator is operated using AC magnetic field with a frequency close to, but different than, its resonant frequency. The MSP actuator exhibits an unlimited displacement, and its moving direction is controlled by the operating frequency used.
DOI: 10.1016/j.sna.2012.12.013
Anahtar Kelimeler: Magnetostriction, Microcantilever, Resonator, Biosensor, Actuator
Cilt: 200
Sayı: 0
Sayfa: 2-10
ISSN: 0924-4247
16
A novel combined redundant pressure sensor with self-test function
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Robert Puers , Dirk De Bruyker , Adriana Cozma
Yıl:
1997
A novel combined redundant pressure sensor with self-test function This paper presents a method to overcome the uncertainty in functionality of pressure sensors. A novel redundant measurement method is demonstrated. Both specifications (redundancy and self-test) are integrated in a single device and combine a piezoresistive Wheatstone bridge with a capacitive sensor and a thermopneumatic actuator, the latter being used as a fail-check of the device. Pressure sensors Actuators
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This paper presents a method to overcome the uncertainty in functionality of pressure sensors. A novel redundant measurement method is demonstrated. Moreover, the feasibility of the first silicon pressure sensor with self-test function is proposed. Both specifications (redundancy and self-test) are integrated in a single device and combine a piezoresistive Wheatstone bridge with a capacitive sensor and a thermopneumatic actuator, the latter being used as a fail-check of the device.
DOI: 10.1016/S0924-4247(96)01436-7
Anahtar Kelimeler: Pressure sensors, Actuators, Biomedical applications
Cilt: 60
Sayı: 1-3
Sayfa: 68-71
ISSN: 0924-4247
17
Vapomechanical soft actuators based on graphene-polymer Nanocomposite/Metal hybrid structure for visual detection of chloroform
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Dergi Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yıl:
2019
Vapomechanical soft actuators based on graphene-polymer Nanocomposite/Metal hybrid structure for visual detection of chloroform having powerful applications in the field of chemical sensors/detectors. A tubular shaped actuator driven by chloroform vapors based on graphene-polydimethylsiloxane nanocomposite/gold bilayers has been realized. These vapomechanical actuators may find potential uses in the development of smart chemical sensors which are cheap, easy to use and do not require any Vapomechanical actuators
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Vapomechanical actuation triggered through chemical vapors by employing soft smart materials is the most recent and less-explored area of actuators research having powerful applications in the field of chemical sensors/detectors. A tubular shaped actuator driven by chloroform vapors based on graphene-polydimethylsiloxane nanocomposite/gold bilayers has been realized. The tubular shape of actuator is transformed into a planar sheet within about 1.7 s time under the exposure of chloroform vapors with vapor pressure of 57 kPa. The shape switching time of this actuator varies linearly with vapor pressure of chloroform. These vapomechanical actuators may find potential uses in the development of smart chemical sensors which are cheap, easy to use and do not require any electrical power for their operations.
DOI: 10.1016/j.sna.2019.07.006
Anahtar Kelimeler: Graphene, Vapomechanical actuators, Nanocomposite, Polydimethylsiloxane
Cilt: 296
Sayı: 0
Sayfa: 87-91
ISSN: 0924-4247
Sınıflandırma:
18
Interface electronics: State-of-the-art, opportunities and needs
Derleme Makalesi

Derleme Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Christian Falconi , Soumyajit Mandal
Yıl:
2019
This paper reviews the state-of-the-art in electronics for interfacing with sensors and actuators, and also suggests future needs and research directions In particular, it focuses on “smart” sensors and actuators, and argues that interface electronics should not be designed in isolation, but rather at the
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This paper reviews the state-of-the-art in electronics for interfacing with sensors and actuators, and also suggests future needs and research directions. In particular, it focuses on “smart” sensors and actuators, and argues that interface electronics should not be designed in isolation, but rather at the system level. Thus, the discussion focuses on the challenges and opportunities involved in integrating transducers, conventional and emerging electronic devices, mixed-signal circuits (including front-ends, data converters, references, and power management), and packaging. Several microsystem design examples are also presented to illustrate the key concepts.
DOI: 10.1016/j.sna.2019.07.002
Anahtar Kelimeler: Sensor interfaces, Packaging, Front-end circuits, Data converters, Closed-loop devices
Cilt: 296
Sayı: 0
Sayfa: 24-30
ISSN: 0924-4247
19
The influence of electrodeposited conducting polymer electrode structure on the actuation performance of muscle-like ionic actuators
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Haleh Rasouli , Leila Naji , Mir Ghasem Hosseini
Yıl:
2018
The influence of electrodeposited conducting polymer electrode structure on the actuation performance of muscle-like ionic actuators This study demonstrates the influences of physical and electrochemical characteristics of conducting polymer (CP) film as electrode material on the actuation These polymers were electrochemically deposited on both surfaces of polymeric membrane and variations in physical, electrochemical and electromechanical characteristics of actuators were followed as a function of the applied polymer type. Ionic soft actuators
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This study demonstrates the influences of physical and electrochemical characteristics of conducting polymer (CP) film as electrode material on the actuation performances of ionic actuators which is of considerable interest for increasing the application of metal-free ionic actuators in different fields. Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and polypyrrole (PPy) were applied as electrode materials in fabrication of metal-free Nafion-based electromechanical actuators. These polymers were electrochemically deposited on both surfaces of polymeric membrane and variations in physical, electrochemical and electromechanical characteristics of actuators were followed as a function of the applied polymer type. Pt-electrode Nafion based actuators were prepared as standard. Electrochemical studies revealed that the mechanism of actuation is mainly related to double-layer capacitance (Cdl) and that faradic capacitance (CF) plays less significant role. PPy-electrode actuators showed higher ion and water permeability due to formation of thinner electrode layers with finer morphology. The largest tip displacement (25 mm) was obtained in PPy-electrode actuators, in response to 6 V dc potential. These actuators exhibited the highest specific capacitance of 146.26 m F.cm−2 and capacitance retention of 87.41% after 100 cycles. The electro-mechanical energy efficiency and the maximum tip displacement of PPy-electrode actuators were 46.42% and 31.57% higher than that considered for PEDOT:PSS-electrode actuators, respectively.
DOI: 10.1016/j.sna.2018.05.041
Anahtar Kelimeler: Conducting polymer electrodes, Electropolymerization, Ionic soft actuators, Polypyrrole, Poly (3, 4-ethylenedioxythiophene)
Cilt: 279
Sayı: 0
Sayfa: 204-215
ISSN: 0924-4247
20
The future of sensor and actuator systems
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Wen H. Ko
Yıl:
1996
A sketch of a personal view on the future trends of sensors and actuators and their technologies is presented with the intention to stimulate thoughts Integrated sensors and actuators to form closed-loop functional units may be a way to raise the device performance and market share. From sensors and actuators to microelectromenchanical systems (MEMS), to nanofabrication, smart materials and smart structures, the future of the field Embedded sensors and actuators Integrated sensors and actuators
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A sketch of a personal view on the future trends of sensors and actuators and their technologies is presented with the intention to stimulate thoughts and discussions. In the field of devices, besides new principles and new designs, efforts will be directed to improving the performance (stability, lifetime and cost) to increase user acceptance. Integrated sensors and actuators to form closed-loop functional units may be a way to raise the device performance and market share. Embedded distributed functional units in materials and structures to obtain on-demand material properties and programmable structure configurations will present new challenges in applications such as: noise and vibration control, programmable active surfaces for rotocraft, smart bridges, highways and buildings, smart skin for antennae and optical devices, artificial skins and muscles, etc. In the technology field, facilities and equipment specially for micromachining will be developed, and flexible and shared facilities will be set up. Packaging technology for functional units is a bottleneck now. Breakthrough in this area will need concentrated efforts. From sensors and actuators to microelectromenchanical systems (MEMS), to nanofabrication, smart materials and smart structures, the future of the field is unlimited.
DOI: 10.1016/0924-4247(96)01288-5
Anahtar Kelimeler: Embedded sensors and actuators, Environmental powering of distributed systems, Future trends, Integrated sensors and actuators, Smart materials, Smart structures
Cilt: 56
Sayı: 1-2
Sayfa: 193-197
ISSN: 0924-4247
21
Modeling of touch mode capacitive sensors and diaphragms
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Qiang Wang , Wen H. Ko
Yıl:
1999
Modeling of touch mode capacitive sensors and diaphragms and actuators. These simulation results predict the change of the performance when the device parameters are varied and can be served as a design tool to arrive at a The results also are useful for designing actuators with diaphragms.
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The understanding of deflection, stress and strain of thin diaphragms with clamped edges under various loads including when the diaphragm touches the substrate is of great importance for designing and fabricating sensors and actuators. This article reports the finite element analysis (FEA) of these diaphragms for computer-aided design of touch mode capacitive pressure sensors. The advantages of the touch mode operation are good linearity in touched range, mechanically robust and large overload protection. These simulation results predict the change of the performance when the device parameters are varied and can be served as a design tool to arrive at a set of desired performance. The results also are useful for designing actuators with diaphragms.
DOI: 10.1016/S0924-4247(99)00068-0
Anahtar Kelimeler: Pressure sensor, Diaphragm modeling, Touch mode sensor, CAD/MEMS
Cilt: 75
Sayı: 3
Sayfa: 230-241
ISSN: 0924-4247
22
Twenty-five years of sensors and actuators
Başyazılar

Başyazılar
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Simon Middelhoek
Yıl:
2007
Twenty-five years of sensors and actuators
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DOI: 10.1016/j.sna.2007.02.009
Cilt: 136
Sayı: 1
Sayfa: 1-2
ISSN: 0924-4247
23
LTCC microflow analyzers with monolithic integration of thermal control
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Cynthia S. Martínez-Cisneros , Núria Ibáñez-García , Francisco Valdés , Julián Alonso
Yıl:
2007
technology has shown to be an excellent alternative to silicon-based microfabrication techniques for the production of three-dimensional structures using a This enables the integration of several unitary operations of a classical analytical process and also the integration of sensors, actuators and electronics In this work, we show the integration of the actuators and the sensors needed for the control of temperature inside a miniaturized fluidic device.
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Recently, the low temperature co-fired ceramics technology has shown to be an excellent alternative to silicon-based microfabrication techniques for the production of three-dimensional structures using a multi-layer approach. This enables the integration of several unitary operations of a classical analytical process and also the integration of sensors, actuators and electronics in the same substrate. In this work, we show the integration of the actuators and the sensors needed for the control of temperature inside a miniaturized fluidic device. The proposed device presents enough thermal accuracy to be used in chemical systems where temperature control is a crucial factor, such as enzyme reactions or polymerase chain reaction systems.
DOI: 10.1016/j.sna.2007.04.059
Anahtar Kelimeler: LTCC, Electronics, Fluidics, Temperature control, Miniaturization
Cilt: 138
Sayı: 1
Sayfa: 63-70
ISSN: 0924-4247
24
Ternary TaSiN films for sensors and actuators
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
C. Linder , A. Dommann , G. Staufert , M.-A. Nicolet
Yıl:
1997
Ternary TaSiN films for sensors and actuators TaSiN films having thicknesses up to several micrometres are investigated in view of their use in sensors and actuators. The films are deposited by reactive sputtering in an Ar/N2 plasma employing a Ta5Si4 target. On X-ray-amorphous layers a surface roughness of less than 2 nm has been measured.
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TaSiN films having thicknesses up to several micrometres are investigated in view of their use in sensors and actuators. The films are deposited by reactive sputtering in an Ar/N2 plasma employing a Ta5Si4 target. In addition to their significant electrical characteristics, these ternary film materials also exhibit excellent mechanical properties. On X-ray-amorphous layers a surface roughness of less than 2 nm has been measured. A crystallization temperature exceeding 800°C has been observed by X-ray diffraction analysis. Using Al as a sacrificial layer, the fabrication of freestanding TaSiN surface microstructures is demonstrated and their application in microelectromechanical transducers is discussed.
DOI: 10.1016/S0924-4247(97)80294-4
Anahtar Kelimeler: Sputtered CaSi N films, Surface macromachining, Electromechanical TaSiN beams
Cilt: 61
Sayı: 1-3
Sayfa: 387-391
ISSN: 0924-4247
25
Regional observability and sensor structures
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
A. El Jai , M.C. Simon , E. Zerrik
Yıl:
1993
In various distributed systems we are interested in the knowledge of the state of a given sub-region. The aim of this paper is to introduce the concept of regionally strategic sensors for a class of distributed parameter systems. We also give the dual results for the characterizations of regional strategic actuators. Sensors
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In various distributed systems we are interested in the knowledge of the state of a given sub-region. The aim of this paper is to introduce the concept of regionally strategic sensors for a class of distributed parameter systems. This emphasizes the spatial structure and location of the sensors in order that regional observability can be achieved. For different geometrical situations we give the characterization of regional strategic sensors. We also give the dual results for the characterizations of regional strategic actuators.
DOI: 10.1016/0924-4247(93)80204-T
Anahtar Kelimeler: Sensors, Measurements, Regional observation, Distributed systems
Cilt: 39
Sayı: 2
Sayfa: 95-102
ISSN: 0924-4247
26
A remote position sensing method based on passive high magnetic permeability thin films
Dergi Makalesi

Dergi Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Heng Wang , Rajesh Rajamani
Yıl:
2019
A remote position sensing method based on passive high magnetic permeability thin films This article develops a fundamental new sensing principle for measuring the position of a moving object. The moving object is equipped with a thin film of high magnetic permeability. A stationary electromagnet and a magnetic sensor are located nearby. The thin film is inexpensive and lightweight and could enable a new generation of position sensors superior to currently available position measurement Position sensors Magnetic sensors Mechanical actuators
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This article develops a fundamental new sensing principle for measuring the position of a moving object. The moving object is equipped with a thin film of high magnetic permeability. A stationary electromagnet and a magnetic sensor are located nearby. As the moving object’s position changes, the coupling between the electromagnet and the magnetic sensor changes, allowing highly accurate measurement of position of the moving object. This new sensing principle will allow remote non-contacting position measurement of moving objects without requiring any electronics or battery on the object. The feasibility of the new measurement system is verified using an experimental piston-cylinder system in which the position of the piston is accurately estimated with an accuracy of approximately 1% of the range of motion. The thin film is inexpensive and lightweight and could enable a new generation of position sensors superior to currently available position measurement technologies.
DOI: 10.1016/j.sna.2019.04.033
Anahtar Kelimeler: Position sensors, Magnetic sensors, Mechanical actuators, Mechanical motion measurement
Cilt: 295
Sayı: 0
Sayfa: 217-223
ISSN: 0924-4247
27
Green paper-based piezoelectronics for sensors and actuators
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
E. Lemaire , R. Moser , C.J. Borsa , D. Briand
Yıl:
2016
Green paper-based piezoelectronics for sensors and actuators We report a novel biodegradable piezoelectric composite fabricated from paper and the piezoelectric salt, sodium potassium tartrate tetrahydrate (Rochelle the crystallization of a concentrated PiezoSalt brine solution. PiezoSalt paper composite provides a scalable, high throughput approach for biodegradable sensors and transducers with unsurpassed environmentally friendly
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We report a novel biodegradable piezoelectric composite fabricated from paper and the piezoelectric salt, sodium potassium tartrate tetrahydrate (Rochelle salt, which we term PiezoSalt). The piezoelectric composite is non-toxic and is fabricated free of environmentally harmful solvents by impregnating PiezoSalt into a paper matrix through the crystallization of a concentrated PiezoSalt brine solution. The composite exhibits an effective piezoelectric constant between 3 and 25 pC N−1, dielectric constant of 7, mass density of 625 kg m−3, and a Young’s modulus between 7 and 8 GPa. When directly actuated, cm-scale cantilevers consisting of PiezoSalt paper produced clearly audible sound waves, illustrating one potential application. PiezoSalt paper composite provides a scalable, high throughput approach for biodegradable sensors and transducers with unsurpassed environmentally friendly processing.
DOI: 10.1016/j.sna.2016.04.024
Anahtar Kelimeler: Rochelle salt, Composite, Paper, Piezoelectric, Biodegradable, Sustainable
Cilt: 244
Sayı: 0
Sayfa: 285-291
ISSN: 0924-4247
28
New hybrid magnetometric sensor
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
M.D. Michelena , C. Aroca , E. López , M.C. Sánchez , P. Sánchez
Yıl:
2002
A new generation of hybrid magnetic sensors is presented. These sensors inherit the principles of the piezoelectric–magnetostrictive sensors improving some of their deficiencies by using a stripe actuator instead In this work, we describe the characterization of both stripe actuators and amorphous materials and the performances of their magnetic sensors. Stripe actuators
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A new generation of hybrid magnetic sensors is presented. These sensors inherit the principles of the piezoelectric–magnetostrictive sensors improving some of their deficiencies by using a stripe actuator instead of a single piezo ceramic. The hysteresis of these sensors has almost been reduced to zero in magnetic sensors using amorphous ribbons and is widely diminished when the amorphous material is directly grown over the stripe actuator. Therefore, the viscous interface between the magnetic and the piezoelectric material is avoided. In this work, we describe the characterization of both stripe actuators and amorphous materials and the performances of their magnetic sensors.
DOI: 10.1016/S0924-4247(01)00787-7
Anahtar Kelimeler: Sensor, Hybrid, Stripe actuators, Amorphous magnetic material, Magnetic field
Cilt: 100
Sayı: 2-3
Sayfa: 153-159
ISSN: 0924-4247
29
Fabrication of piezoelectric thick-film low-voltage multilayer actuators using a new double-paste printing technique
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
H. Moilanen , S. Leppävuori , A. Uusimäki
Yıl:
1993
Fabrication of piezoelectric thick-film low-voltage multilayer actuators using a new double-paste printing technique Thick-film technology is of increasing importance in the manufacture of solid-state sensors and actuators. A novel double-paste screen-printing technology has been developed for the thick-film fabrication process of piezoelectric TFML actuators. It results in a remarkable improvement in the realization of components incorporating dozens of active piezolayers.
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Thick-film technology is of increasing importance in the manufacture of solid-state sensors and actuators. However, fabrication of complicated component structures like actuators based on screen-printed thick-film multilayers (TFMLs) includes significant technical problems still to be solved. A novel double-paste screen-printing technology has been developed for the thick-film fabrication process of piezoelectric TFML actuators. It results in a remarkable improvement in the realization of components incorporating dozens of active piezolayers. New methods have been devised for various thick-film process main stages, including layout considerations, paste printing, active piezoceramic and electrode layer printing. Using previously developed thick-film piezoelectric pastes and commercial electrode paste, low driving voltage ( < 40 V) multilayer piezoactuators have been realized. The actuator performance and piezoelectric constants are determined using an interferometric out-of-contact displacement measurement system developed for this purpose.
DOI: 10.1016/0924-4247(93)80020-H
Cilt: 37-38
Sayı: 0
Sayfa: 106-111
ISSN: 0924-4247
30
Electromechanical coupling in polypyrrole sensors and actuators
Araştırma Makalesi

Araştırma Makalesi
Kaynak:
Science Direct
Dergi:
Sensors and Actuators A: Physical
Yazar(lar):
Tina Shoa , John D.W. Madden , Tissaphern Mirfakhrai , Gursel Alici , Geoffrey M. Spinks , Gordon G. Wallace
Yıl:
2010
Electromechanical coupling in polypyrrole sensors and actuators Polypyrrole actuators offer high stresses, moderate strains, low voltage operation and biocompatibility. These materials also act as force and displacement sensors. Based on this finding a semi-empirical model of the electromechanical coupling is proposed.
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Polypyrrole actuators offer high stresses, moderate strains, low voltage operation and biocompatibility. These materials also act as force and displacement sensors. In this paper the properties of polypyrrole sensors are investigated, enabling the first quantitative demonstration of the link between actuation and sensing, and suggesting a new mechanism of electromechanical coupling that can be exploited in materials that are both ionically and electronically conducting. Polypyrrole actuates when electrochemically charged, with the strain being proportional to the charge density transferred. It has also been shown that applying force to polypyrrole generates a proportional change in voltage. It is shown herein that the same constant of proportionality describes the response in both cases. Based on this finding a semi-empirical model of the electromechanical coupling is proposed. The model suggests that the insertion of ions into the polymer requires mechanical work to elastically deform the matrix. The external application of stress alters the internal stress on ions, helping insert or remove charge, and change voltage. The frequency dependence of the relationship between stress and voltage is also investigated. The sensor response is relatively stable at frequencies between 0.1 Hz and 100 Hz. The results and models presented enable the prediction of polypyrrole sensor and actuator responses.
DOI: 10.1016/j.sna.2010.04.024
Anahtar Kelimeler: Artificial muscle, Electroactive polymer, Strain gauge, Load cell, Conducting polymer, Equivalent circuit, Frequency response, Strain to charge, Electrochemistry, Mechanism
Cilt: 161
Sayı: 1-2
Sayfa: 127-133
ISSN: 0924-4247

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