Invention Grant
- Patent Title: Device for determining the rotational speed
- Patent Title (中): 用于确定转速的装置
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Application No.: US09091912Application Date: 1998-06-24
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Publication No.: US06249754B1Publication Date: 2001-06-19
- Inventor: Reinhard Neul , Dirk Lamprecht
- Applicant: Reinhard Neul , Dirk Lamprecht
- Priority: DE19653021 19961219
- Main IPC: G01C1900
- IPC: G01C1900

Abstract:
A device for determining a rotation rate can be employed in conjunction with a rotation rate sensor which furnishes one or two output signals that among other things are a measure for the Coriolis acceleration and thus also for the rotation rate. The device includes an arrangement for signal processing, with which both digital subtraction of the output signals and an ensuing digital multiplication by a carrier signal shifted in a digital phase shifter are accomplished. The digital multiplication is followed by a digital/analog conversion and low-pass filtration, which in the final analysis furnishes an output signal (DR) that is equivalent to the rotation rate.
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