Fabric transducers actuators

Piezoelectricity is extensively utilized in the fabrication of various devices such as transducers, actuators, surface acoustic wave devices, frequency control and so on. In this chapter we describe the piezoelectric materials that are used, and various potential applications of piezoelectric materials [1-4]. 

Crytal chemitry. The effect of solid solution on the transition behavior of perovskite (ABX3) structures has been intensively scrutinized for more than 50 years. These materials have merited continuous attention because of their enormous technological versatility. As multilayer capacitors, piezoelectric transducers, and positive temperature coefficient (PTC) thermistors they generate a market of over 3 billion every year (Newnham 1989, 1997). In addition to ease of fabrication, these compounds exhibit a number of attributes required of ideal actuators (1) They display very large field-induced strains (2) They offer quick response times and (3) Their strain-field hysteresis can be chemically controlled to be very large or negligibly small, depending on the application. Details of their technical applications can be found in Jaffe et al. (1971) and Cross (1993). 

Northrup MA, Ching MT, White RM, Watson RT (1993) DNA amplification in a micro-fabricated reaction chamber. In Proceedings seventh international conference on solid state sensors and actuators. Transducers 93, Yokohama, Japan, 7-10 June 1993, pp 924... 

Catrysse, M., Puers, R., Herdeer, C., Van Langenhove, L., Egmond, Van, et al., 2003. Fabric sensors for the measurement of physiological parameters. In Transducers 03, 12th International Conference on Solid-state Sensors, Actuators and Microsystems, Boston, MA. 

The broad application of relaxor ferroelectrics in the modern sensors, actuators, high performance electromechanical transducers and other electronic devices generates the constant interest in investigation and fabrication of these materials. 

Lee C-Y, Wu G-W, Hsieh W-J (2008) Fabrication of micro sensors on a flexible substrate. Sens Actuators A 147 173-176 Li Y, VancuraC, BarrettinoD, Graf M, HagleitnerC, Kummer A, Zimmermann M, Kirstein K-U, Hierlemann A (2007) Monolithic CMOS multi-transducer gas sensor microsystem for organic and inorganic analytes. Sens Actuators B 126 431 40... 

Newbury K-M, Leo D-J (2003) Linear electromechanical model of ionic polymer transducers - part I model development J Intell Mater Syst Struct 14 333-342 Nguyen XT, Goo NS, Nguyen VK, Yoo Y, Park S (2008) Design, fabrication, and experimental characterization of a flap valve IPMC micropump with a flexibly supported diaphragm. Sens Actuators A 141 640-648... 

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