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US 8,008,839 B2Granted
System and method of providing a thermally stabilized fixed frequency piezoelectric optical modulator
AssigneeFluke Corporation
InventorsGary D. Shubinsky, Charles S. Pint
Life of this patent
Estimating the term…
Abstract
A device for generating controlled vibration in an uncontrolled temperature environment includes a driving circuit that generates a signal having a first frequency and has a temperature-sensitive driving unit, a vibratory element coupled to the driving unit that vibrates at the first frequency according to the generated signal, and a temperature control circuit to control the temperature of the driving unit.
Claims9
A device for generating controlled vibration, the device comprising:
- a driving circuit that generates a signal having a first frequency;
- wherein the driving circuit includes a temperature-sensitive driving unit;
- a vibratory element coupled to the driving unit that vibrates at the first frequency according to the generated signal;
- a temperature control circuit to control the temperature of the driving unit,
- a temperature sensing circuit that generates a signal indicative of the temperature of the driving unit;
- and
- a controller coupled to the driving circuit, to the temperature circuit, and to the temperature control circuit,
- wherein the controller controls the driving circuit first frequency based on the signal generated by the temperature sensing circuit.
5 more elements
A device for generating controlled vibration, the device comprising:
- a driving circuit that generates a signal having a first frequency;
- wherein the driving circuit includes a temperature-sensitive driving unit;
- a vibratory element coupled to the driving unit that vibrates at the first frequency according to the generated signal;
- a temperature control circuit to control the temperature of the driving unit;
- and
- an encasement having high thermal conductivity that substantially surrounds the driving unit, wherein the temperature control circuit maintains the encasement at a controlled temperature to thereby control the temperature of the driving unit.
3 more elements
Dependencies are inferred from the claim text.