THERMAL STABILIZATION OF THE PARAMETERS OF PHOTORESISTOR LIGHT DETECTORS

Authors
VIKULINA KI DYACHENKO AM
Citation
Ki. Vikulina et Am. Dyachenko, THERMAL STABILIZATION OF THE PARAMETERS OF PHOTORESISTOR LIGHT DETECTORS, Instruments and experimental techniques, 36(5), 1993, pp. 811-813
Citations number
4
Categorie Soggetti
Instument & Instrumentation",Engineering
Journal title
Instruments and experimental techniques → ACNP
ISSN journal
00204412
Volume
36
Issue
5
Year of publication
1993
Part
2
Pages
811 - 813
Database
ISI
SICI code
0020-4412(1993)36:5<811:TSOTPO>2.0.ZU;2-D
Abstract
We describe a method to stabilize the output signal of a light detecto r built around a measuring bridge of four photoresistors, of which two are closed and used as a load. The signal generated in the bridge dia gonal under illumination is amplified by a differential amplifier arou nd two transistors with a gain controlled by the bridge current. The d rop in the bridge signal as the temperature rises is compensated by a simultaneous rise in the gain, which stabilizes the output signal.