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Stud sensor with digital averager and dual sensitivity

  • US 5,352,974 A
  • Filed: 08/14/1992
  • Issued: 10/04/1994
  • Est. Priority Date: 08/14/1992
  • Status: Expired due to Term
First Claim
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1. A portable device for locating a stud positioned behind a surface comprising:

  • a sensor sensing additional capacitive loading caused by the stud while said sensor moves along the surface approaching the stud and providing digital data signals as output when said additional capacitive loading is sensed;

    a digital averager receiving the data signals from said sensor and averaging them; and

    a display processor receiving the averaged data and in response providing an indication of the stud position on a display unit.

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