Angular rate sensor apparatus
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United States of America Patent
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-
Dec 16, 1986
Issued Date -
N/A
app pub date -
May 25, 1984
filing date -
Jan 21, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An angular rate sensor structure displaying high immunity to noise and feedback vibration is disclosed. Mounting elements (15) support a pair of matched vibratory piezoelectric bender elements (10) in symmetrical opposed alignment about a nodal axis (20). Each vibratory element includes a drive element (10A) and sense element (10B) connected to and for operative movement with the drive element. Resonance drive element (30) moves the vibratory elements (10) in a first mode of movement, in dirct opposition to one another about the nodal axis. The sensing members (10B) detect movement of the vibratory elements in directions other than in the first mode of movement resulting from application of external angular rate forces applied to the vibratory elements.
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