Gravity sensor and electronic device using the same
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United States of America Patent
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Jul 31, 2012
Grant Date -
Dec 3, 2009
app pub date -
Nov 4, 2008
filing date -
May 30, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gravity sensor includes a chamber, a number of receiving holes, an electrically insulative liquid, a number of pressure sensors, and a number of sealing elements. The receiving holes are defined in the inner surface of the chamber. The electrically insulative liquid is sealed within the chamber. The pressure sensors are disposed in the receiving holes respectively, and are configured for sensing the pressure that the electrically insulative liquid apply thereto. The sealing elements is configured for sealing the receiving holes respectively when the corresponding pressure sensor senses a pressure applied by the electrically insulative liquid.
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