Apparatus for automatically measuring the resistance and heating

Details Apparatus for automatically measuring the resistance and heating Apparatus for automatically measuring the resistance and heating

1977-03-11

1978-03-28

Queisser, Richard C.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

323 75A, 323 75B, G01K 724, G05F 310

Patent

active

040808297

ABSTRACT:
An apparatus is described for automatically measuring the resistance and ting up of resistive electrical components, such as the windings of transformers or the coils of motors. The apparatus comprises a bridge circuit fed by a source of D.C. voltage and includes a voltage detector and switching means, the latter enabling the voltage detector to be connected across various points of the bridge circuit so as to produce virtually simultaneous measurements of the heating up of the component under test and of the ambient temperature at the place where the tests and measurements are being preformed.

REFERENCES:
patent: 2478000 (1949-08-01), Miller
patent: 2982908 (1961-05-01), Erickson et al.
patent: 3429183 (1969-02-01), Lindberg

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