Motion and tilt angle sensor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Oct 29, 2002
Grant Date -
N/A
app pub date -
Apr 11, 2000
filing date -
Apr 11, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mass moves within a bore defined in a body. During normal operation the axis of the bore is approximately vertical, so that the mass rests at the bottom. A magnet is positioned adjacent the top of the bore and imparts an upwards force on the mass that is less than the downwards force on the mass upwards force on the mass that is less than the downwards force on the mass from gravity. A coil is positioned adjacent the bottom of the bore. When the body is dropped, or tilted beyond a critical angle from vertical, the force from the magnet causes the mass to move upwards in the bore. The upwards movement is sensed as a change in the coil's inductance.
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