Patent · US Expired

Angular rate sensor using micro electromechanical haltere

US7107842B2 · kind B2 · utility

9Cited by
7References
2Claims
0Family size

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Inventors

Key dates

Filing dateMay 3, 2004
Grant dateSep 19, 2006
Priority date—
Expiry dateMay 3, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01C19/56
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An angular rate sensing system suitable for a micromechanical flying insect (MFI) device. The system includes a rod, or haltere, that is moved in a plane by a piezoelectric actuator. Bending of the haltere due to angular movement of a body onto which the haltere is coupled is sensed with a resistive strain gage. In a first embodiment the haltere is actuated (i.e., made to beat or sweep) by simple coupling to an actuator. In a second embodiment, a four-bar structure is used to amplify the motion of a piezoelectric bender to cause haltere beating. Another embodiment achieves haltere beating by parasitic transmission of vibrations of the MFI body to the base of the haltere.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.