Ultrasound flow meter with resonant circuit serving as a frequency filter for transducer signals

摘要

The arrangement has resonant circuits formed by an inductive-capacitive oscillator, where the ultrasonic transducer is parallely connected to inductance of the inductor of the inductive-capacitive oscillator. The ultrasonic transducer is impinged with a sinusoidal signal, and is connected with the resonant circuits aligned on a frequency of the sinusoidal signal. Independent claims are included for the following: (1) an arrangement for signal processing in an ultrasonic flow meter; and (2) an ultrasonic flow meter with a measuring section.