considering the measurement of liquid level, explain with the aid of a diagram the principle by...

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Electrical Engineering

considering the measurement of liquid level, explainwith the aid of a diagram the principle by which the ultrasonicliquid level gauge operates

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Ultrasonic level transmitter which performs calculations toconvert the distance of wave travel into a measure of level in thetank The time lapse between firing the sound burst and receivingthe return echo is directly proportional to the distance betweenthe transducer and the material in the vessel The medium isnormally air over the materials surface but it could be a blanketof some other gases or vapours The instrument measures the timefor the bursts to travel down to the reflecting surface and returnThis time will be proportional to the distance from the transducerto the surface and can    See Answer
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