THERMOMETER

Published:2009/7/10 21:21:00 Author:May | From:SeekIC

Sensor is 3911 ICwhoseout-put is 10 mV/K (kelvin temperature scale). At 0℃, output is 2.73 V. Output swing is amplified by 741 opamp to 0.1 V/℃ for driving volt-ohm-milliammeter or sensitive milliammeter. R2 ad-iusts scaling factor, for readout in ℃ or °F as de-sired.-J. Sandier, 9 Projects under $9, Modern Electronics, Sept. 1978, p 35-39.



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