Piezoelectric transducer drive having temperature compensation

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

1980-03-25

1982-02-02

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310321, 310316, 310346, 372 18, H01L 4108, G01B 902

Patent

active

043141749

ABSTRACT:
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.

REFERENCES:
patent: 2951208 (1960-08-01), Barton
patent: 3555453 (1971-01-01), Littauer
patent: 3714475 (1973-01-01), Baker, Jr.
patent: 4099876 (1978-07-01), Dorsman
patent: 4113387 (1978-09-01), Shutt
patent: 4115004 (1978-09-01), Hutchings

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