Drift compensated amplifier, particularly for measuring signals

Details Drift compensated amplifier, particularly for measuring signals Drift compensated amplifier, particularly for measuring signals

1975-11-10

1977-06-28

Rolinec, Rudolph V.

Amplifiers

Sum and difference amplifiers

73 23, 330 9, 330 30D, 330 86, H03F 345

Patent

active

040328562

ABSTRACT:
A gas analyzer has an output amplifier circuit which is drift compensated in that zero volts are established across a gain network for a particular low point measuring signal as the amplifier provides an output on the basis of a particular bias, while the gain network is adjusted so that the amplifier output equals a second reference signal. The drift compensation is automated in that the bias and the reference are used to drive adjusting devices while the gas analyzer receives particular reference gases.

REFERENCES:
patent: 3441863 (1969-04-01), Moriyasu
patent: 3504521 (1970-04-01), Luckers

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