Noninvasive dielectric sensor and technique for measuring polyme

Details Noninvasive dielectric sensor and technique for measuring polyme Noninvasive dielectric sensor and technique for measuring polyme

1990-09-26

1993-05-04

Harvey, Jack B.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324688, 324690, 324663, G01R 2726

Patent

active

052085449

ABSTRACT:
A sensor which allows dielectric measurements to be made on a high temperature product such as a molten plastic flowing in a conduit. It comprises a ceramic cylinder with an interdigitated electrode capacitor patterned into the inside wall. Uses of the sensor include continuous determination of copolymer composition and polymer viscosity (molecular weight) in a completely non-obstructive manner.

REFERENCES:
patent: 3078709 (1963-02-01), Clark
patent: 3635082 (1972-01-01), Prellwitz et al.
patent: 4074184 (1978-02-01), Dechene et al.
patent: 4448943 (1984-05-01), Golba et al.
patent: 4723908 (1988-02-01), Kranbuehl

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