Devices for measuring physical values and vibrators

Details Devices for measuring physical values and vibrators Devices for measuring physical values and vibrators

2006-11-28

2006-11-28

Chapman, John E. (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

C073S504120

Reexamination Certificate

active

07140251

ABSTRACT:
A device for measuring a physical value, such as a vibratory gyroscope, is provided. The device comprises a vibrator; a driving means for exciting a driving vibration in the vibrator; a detecting means for obtaining an output signal based on a detection vibration excited in the vibrator in response with the physical value; and a detection circuit for processing the output signal to provide a detection signal corresponding with the physical value. The vibrator has at least one bending vibration arms1A and1B vibrating in bending mode along a specified plane (X-Y plane). The bending vibration arm comprises at least a pair of base parts2A,2B and a connecting part3connecting the base parts2A,2B. The connecting and base parts define a pair of recesses8A,8B.

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“Handbook of Elastic Wave Device Technologies,” (Danseiha-Sosi Gijutsu Handbook) published by Ohm, Inc., pp. 491-497.

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