Weaver, P M (2011) A sensorless drive system for controlling temperature dependent hysteresis in piezoelectric actuators. IEEE Trans. Ultrason. Feroelectr. Freq. Control, 58 (4). pp. 704-710.

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Abstract

A novel drive system is described which improves the operational characteristics of piezoelectric actuators. Electronic controls to increase the range of movement across a wide temperature range usually need a temperature sensor for maximum effect. This paper describes a novel system that uses the polarization characteristics of the piezoelectric ceramic to reverse polarise the ceramic without a temperature measurement. Significant improvements in the operating temperature range for devices such as locks or valves are achieved.

Item Type:	Article
Keywords:	piezoelectric, piezoceramic, actuator, temperature, thermal, hysteresis, charge
Subjects:	Advanced Materials Advanced Materials > Functional Materials
Identification number/DOI:	10.1109/TUFFC.2011.1863
Last Modified:	02 Feb 2018 13:14
URI:	http://eprintspublications.npl.co.uk/id/eprint/4963

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