Piezoelectric transducer drive having temperature compensation

Details Piezoelectric transducer drive having temperature compensation Piezoelectric transducer drive having temperature compensation

H - Electricity

01

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345/10, 349/65

H01S 3/083 (2006.01) G01C 19/70 (2006.01) H01L 41/04 (2006.01) H04R 17/00 (2006.01)

Patent

CA 1146664

PIEZOELECTRIC TRANSDUCER DRIVE HAVING TEMPERATURE COMPENSATION ABSTRACT OF THE DISCLOSURE A piezoelectric transducer drive for use within a ring laser gyro is shown wherein a resistive element is combined in a negative feedback loop with a second resistive element to provide a feedback signal which is constant with variations in the transducer material and linear with temperature change. The feedback signal is amplified and applied to a comparator whose output is modulated with an AC signal and applied to a power amplifier that drives the piezoelectric transducer for controlling the displacement thereof uniformly over a wide temperature range.

370978

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