Accelerometer with cantilever and magnetic field detector
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United States of America Patent
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-
May 22, 2007
Grant Date -
Jun 15, 2006
app pub date -
Mar 21, 2005
filing date -
Apr 30, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An accelerometer for measuring the displacement of a magnet body using magnetic detecting elements is provided, the accelerometer having superior measurement accuracy by suppressing influence of a peripheral magnetic field. The accelerometer has detecting units each having a cantilever which is elastically deformed so as to rotate around a fixed end thereof, a magnet body provided at a free end of the cantilever, and a magnetic detecting head portion disposed outside the rotation region of the cantilever. In order to correct detection signals output from the magnetic detecting head portions, the accelerometer has peripheral magnetic field detecting portions for measuring a peripheral magnetic field acting on the magnetic detecting head portions and the magnet bodies.
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