Sensor for sensing the wall thickness of an object

Details Sensor for sensing the wall thickness of an object Sensor for sensing the wall thickness of an object

1991-02-06

1992-06-09

Wieder, Kenneth A.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324671, G01R 2726

Patent

active

051210681

ABSTRACT:
A capacitive sensor senses the wall thickness of an object. The sensor has an electrode covered by an adhesive tape including a non-transparent glass cloth tape layer which engages the object and a layer of silicon or acrylic adhesive for securing the tape layer to the electrode. The adhesive and tape have a dielectric constant that is constant throughout the temperature range in which the sensor is to operate.

REFERENCES:
patent: 2754478 (1956-07-01), Goldsmith
patent: 4626774 (1986-12-01), Regtien
patent: 4751842 (1988-06-01), Ekrann et al.
patent: 4789822 (1988-12-01), Ohmatoi
patent: 4797605 (1989-01-01), Palanisamy
patent: 4804905 (1989-02-01), Ding et al.
patent: 4820972 (1989-04-01), Scott et al.

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