Radiation responsive integrating amplifier

Details Radiation responsive integrating amplifier Radiation responsive integrating amplifier

1985-05-08

1987-05-19

Rosenberger, R. A.

Optics: measuring and testing

Photometers

Integrating

307311, 328128, 356218, 356224, 356226, G01J 146

Patent

active

046663010

ABSTRACT:
Light induced current from a photodiode is converted into a voltage proportional to the integral with respect to time of the current using two serially connected integrating operational amplifiers. In each case the integrating capacitors are connected so that the photodiode is part of the charge current for the capacitors. The amplifiers operate in sequence.

REFERENCES:
patent: 3641891 (1972-02-01), Burgarella
patent: 3871767 (1975-03-01), Holm-Hansen et al.
patent: 4306807 (1981-12-01), Sakane et al.
patent: 4348110 (1982-09-01), Ito
patent: 4390258 (1983-06-01), Mizokami
Mitra, "An Introduction to Digital and Analog Integrated Circuits and Applications", Harper & Row, New York, 1980, pp. 307-309.

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