Gas sensor resistance with temperature schematic

Published:2014/3/18 21:22:00 Author:lynne | Keyword: Gas sensor resistance with temperature schematic, | From:SeekIC

Gas sensor resistance changes with temperature thermistor can be applied with similar characteristics to compensate for temperature. Figure 8-17 shows a bridge circuit connected to the gas sensor temperature compensation circuit, the circuit is also access to a comparator with hysteresis. Signal magnitude adjustment variable resistor RP1. When applied to the inverting input terminal of the voltage exceeds a threshold level of the upper limit, the output level is set at a low level. The reverse voltage is applied before the input level is lower than the threshold voltage, the high level of the output terminal is disposed, so as to significantly reduce the need for appropriate measurement when the concentration of gas.



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