Acceleration sensor
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United States of America Patent
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Nov 27, 2007
Grant Date -
Mar 31, 2005
app pub date -
Aug 24, 2004
filing date -
Feb 25, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An acceleration sensor includes a weight and a vibrator that supports the weight at its center of gravity. When acceleration is applied to the weight, stress equivalent to the applied acceleration is generated in the vibrator. As the vibrator is arranged to support the weight at its center of gravity, a characteristic relationship is observed between the acceleration, such as angular acceleration or translational acceleration, and the size of electric charges and the polarity. By taking advantage of this relationship, different types of acceleration can be easily detected.
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