Systems for measuring physical quantities

Details Systems for measuring physical quantities Systems for measuring physical quantities

2005-01-19

2008-10-28

Williams, Hezron E. (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

C073S504040, C381S317000

Reexamination Certificate

active

07441458

ABSTRACT:
It is provided a system for measuring a physical quantity based on a detection signal using a vibrator1, a self-oscillating circuit12A oscillating a driving vibration in the vibrator1and a detection circuit for outputting a detection signal from the vibrator1. The self-oscillating circuit12A comprises a current-voltage converter3and a low pass filter25. The detection circuit comprises a charge amplifier circuit amplifying an output signal from the vibrator, and the current-voltage converter and the charge amplifier circuit are formed in a monolithic IC.

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