Design methodology of single crystal tuning fork gyroscope for automotive applications

This paper presents a method of designing a single crystal tuning fork vibratory gyroscope for stabilizing temperature sensitivity changes and reducing the noise from the external vibration by increasing the inertia moment of the device. As a result a detection mode Q value of 10,000 was realized. A...

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Published in1998 IEEE Ultrasonics Symposium. Proceedings (Cat. No. 98CH36102) Vol. 1; pp. 463 - 466 vol.1
Main Authors Yachi, M., Ishikawa, H., Satoh, Y., Takahashi, Y., Kikuchi, K.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1998
Subjects
Automotive applications
Ceramics
Design methodology
Energy loss
Equations
Gyroscopes
Laboratories
Noise level
Temperature sensors
Vibrations
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Summary:This paper presents a method of designing a single crystal tuning fork vibratory gyroscope for stabilizing temperature sensitivity changes and reducing the noise from the external vibration by increasing the inertia moment of the device. As a result a detection mode Q value of 10,000 was realized. A sensitivity change of within /spl plusmn/5% was obtained after correcting the temperature dependence by a thermistor. Simultaneous incrementing of the inertia moment resulted in an enlargement of the fixed area of support. It was also found that the noise level from vibration decreased to less than 1/5.
ISBN:9780780340954
0780340957
ISSN:1051-0117
DOI:10.1109/ULTSYM.1998.762189