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Variable resistors based on composites

Lalkishore, K and Ramkumar, K and Satyam, M (1987) Variable resistors based on composites. In: Journal of Physics D: Applied Physics, 20 (3). pp. 386-389.

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Describes a voltage variable resistor (varistor) in which the variation of resistance due to an applied voltage is produced through the coupling of piezo-electric strain to a thick film resistor. It has been found that this resistor can give rise to a positive coefficient of resistance when used as a three or four terminal device. Theoretical estimation of the change in resistance with voltage in terms of the various physical parameters like $d_{33}$ of the piezo-electric substrate and the composition and grain size of the thick film resistor, is also described.

Item Type: Journal Article
Publication: Journal of Physics D: Applied Physics
Publisher: Institute of Physics
Additional Information: Copyright for this article belongs to the Institute of Physics.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 13 May 2008
Last Modified: 27 Aug 2008 13:22
URI: http://eprints.iisc.ac.in/id/eprint/13941

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