Inertial sensor
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United States of America Patent
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Jan 22, 2019
Grant Date -
N/A
app pub date -
May 5, 2016
filing date -
May 5, 2016
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Abstract
An inertial sensor includes an oscillator, a drive unit for oscillating the oscillator, a sensor for sensing the amount of inertia applied to the oscillator, and a failure diagnosis unit disposed between the oscillator and the drive unit. The drive unit includes a reference potential supply unit for supplying a reference potential to the oscillator, and a drive signal supply unit for supplying a drive signal to the oscillator based on a monitor signal received from the oscillator. The failure diagnosis unit includes a diagnosis unit for diagnosing a failure based on the value of a current supplied by the reference potential supply unit to the oscillator. The inertial sensor having this structure can detect a failure in the drive unit or the oscillator.
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