Device for Measuring a Yaw Rate
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United States of America Patent
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Issued Date -
Mar 6, 2014
app pub date -
Dec 1, 2011
filing date -
Dec 2, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A device for measuring yaw rate, having a mechanical yaw rate sensor, which has an inert mass that can be set into a primary vibration along a primary axis by means of an excitation device and can be deflected along a secondary axis extending transversely with respect to the primary axis so that when a yaw rate occurs about a sensitive axis extending transversely with respect to the primary and to the secondary axis, said device carries out a secondary vibration excited by the Coriolis force. A sensor element detects an amplitude-modulated signal for the secondary vibration. A sigma-delta modulator has a low pass filter connected to the sensor element, a quantizer and a secondary actuator disposed in a feedback path for applying a force which counteracts the Coriolis force.
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