Stud sensor with over-stud miscalibration via circuit which stor

Details Stud sensor with over-stud miscalibration via circuit which stor Stud sensor with over-stud miscalibration via circuit which stor

1994-09-08

1997-04-08

O'Shea, Sandra L.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

324202, G01R 1906, G01R 3502

Patent

active

056191286

ABSTRACT:
A dual sensitivity stud sensor senses studs through both thick and thin surfaces. Studs are sensed by detecting a change in the capacitive loading of plates as they are moved along a surface and into proximity with a stud. The sensor informs the operator when the sensor has (incorrectly) been calibrated over a stud. The sensor also informs the operator if the sensor is placed against a surface either too thick or too thin for stud detection. Through use of a digital register, the sensor remains calibrated indefinitely while the sensor is powered on.

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