We are engaged in fabrication of Ultrasonic Flow Meter that is used to take measurements of the level of liquids, where physical contact with liquid is not possible. The transmitter is designed with a “blind zone” of 0.25m close to the sensor, where at this point measuring capability of instrument lapses.
Avoid spurious echoes which are not reflected by the surface
Take care of the positioning of the METER sensor
No obstacles should interfere with the ultrasonic wave emission lobe