Sensor system with adjustment for ambient conditions
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United States of America Patent
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Jul 6, 1993
Grant Date -
N/A
app pub date -
Oct 8, 1991
filing date -
Nov 15, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sensor system for recording the ambient conditions of an optical sensor having a transmitter unit and a receiver unit linked by an optical gap. An electronic sensor unit is provided that predetermines a basic setting of the optical sensor independent of the ambient conditions. The electronic sensor unit contains a signal processing section with comparators for comparing a reception signal of the optical sensor with threshold values corresponding to certain ambient conditions. The electronic sensor unit recognizes and evaluates changes in the ambient conditions as a function of the comparing, and restores the basic setting of the optical sensor such that the sensor system dependably reacts to subsequent changes in the ambient conditions.
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