Contactless electrical measurement device including a magnetizab

Details Contactless electrical measurement device including a magnetizab Contactless electrical measurement device including a magnetizab

1993-05-28

1998-06-02

Snow, Walter E.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

32420716, 336233, G01B 714, G01R 3300, H01F 2724

Patent

active

057605793

ABSTRACT:
The measurement device for generating a measurement signal from an object without physical contact with the object includes a magnetizable plastic coil body and at least one coil arranged on the coil body and through which a current flows during generation of the measurement signal. The coil body can be part of a one-piece injection molded plastic part consisting of a magnetizable plastic material. In a preferred embodiment the one-piece injection molded magnetizable plastic part consists of ring-like mounting element and a sleeve-like extension with a exterior circumferential groove for the coil or coils which acts as the magnetizable plastic coil body. The magnetizable plastic substance can be a polyamide plastic substance filled with a weakly magnetizable material such as an iron-cobalt powder.

REFERENCES:
patent: 4024484 (1977-05-01), Tomczak et al.
patent: 4256986 (1981-03-01), Anderson
patent: 5239204 (1993-08-01), Mueller et al.

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