Ultrasonic fill level device and method

Details Ultrasonic fill level device and method Ultrasonic fill level device and method

2005-08-09

2005-08-09

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

Reexamination Certificate

active

06925870

ABSTRACT:
A fluid level monitoring system20includes an ultrasonic interrogation device30acoustically coupled to a sidewall25of container22and produces ultrasound that travels through the liquid24along a transverse path32and an inclined path34. The liquid level is determined by calculating the times-of-flight for the received return signals, where the return signal along the inclined path34reflects from the intersection27of the liquid level28and a sidewall23. The device30can be a multi-element transducer having a plurality of transducer elements at different angular orientations in a common housing.

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