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Angular velocity senor

  • US 7,234,352 B2
  • Filed: 10/06/2005
  • Issued: 06/26/2007
  • Est. Priority Date: 10/07/2004
  • Status: Active Grant
First Claim
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1. An angular velocity sensor for detecting an angular velocity of an object, the angular velocity sensor comprising:

  • a tuning fork unit;

    a base block provided with a terminal for outputting an output signal from the tuning fork unit to the exterior of the tuning fork unit;

    a cover for housing the tuning fork unit in a space defined by the cover and the base block;

    a circuit board for fixing the terminal on the base block, the circuit board being provided with a processing circuit for processing the output signal from the tuning fork unit; and

    a casing for housing the base block, the cover, and the circuit board therein;

    wherein the terminal on the base block is fixed to the circuit board, a clearance is defined between the base block and the circuit board, and the terminal on the base block is in the clearance and has a flexure portion;

    wherein the flexure portion is made of a thin plate having a smaller thickness in a direction intersecting with a vibrating surface of the tuning fork unit than a thickness in a direction parallel to the vibrating surface; and

    wherein the thin plate is produced by plastically deforming a cylindrical lead wire.

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