Infra-red Level Detector


Posted on Feb 24, 2013

This circuit is useful in liquids level or proximity detection. It operates detecting the distance from the target by reflection of an infra-red beam. It can safely detect the level of a liquid in a tank without any contact with the liquid itself. The device`s range can be set from a couple of cm. to about 50 cm. by means of a trimmer. Range can vary, depending on infra-red transmitting and receiving LEDs used and is mostly affected by the color of the reflecting surface. Black surfaces lower greatly the device`s sensitivity.


Infra-red Level Detector
Click here to download the full size of the above Circuit.




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Suneth   Apr 16, 2008

Thanks

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