Device for suppressing deviations in the output voltage of a pre

Details Device for suppressing deviations in the output voltage of a pre Device for suppressing deviations in the output voltage of a pre

1980-02-25

1981-12-22

Christian, Leonard D.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

73204, G11B 1506, G11B 2312

Patent

active

043066895

ABSTRACT:
A device is disclosed for suppressing deviations in the output voltage of a pressure transducer in magnetic tape recorders caused by temperature fluctuations. A voltage dependent on the temperature of the pressure transducer is connected to the adjustable tap of a potentiometer connected between inputs of a differential amplifier. An operational amplifier compensates the output voltage of the pressure transducer with the output of the differential amplifier.

REFERENCES:
patent: 3354318 (1967-11-01), Wahlstrom
patent: 3540643 (1970-11-01), Longland
patent: 3701494 (1972-10-01), Proulx

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