Optical Liquid Level Sensor
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diodes - Using an optical switch with 5 terminals as a sensor - Electrical Engineering Stack Exchange
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808 nm laser diode - 200 mW to 100 W - fiber coupled - Pulsed or CW 808nm laser diode
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Optical Liquid Level Sensor
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Photo-diode sensor filters and fibre optic light transfer | Download High-Resolution Scientific Diagram
