The main components of ultrasonic liquid level measuring system are described
which emphasizes on one of this kind of system that meets the demand of industrial application under complicated circumstances.It includes new driving circuit
the interface between pulse-generating and receiving circuit and other signal processing circuit
etc.The method to minimize the blind area in single transducer system is discussed.The intelligent ultrasonic control system
data processing algorithm and temperature compensation based on AVR series MCU are presented.After lots of tests under many kinds of industrial circumstances
the accuracy of the system is 0.2 %
0.8 %.It has been met the demand for the industrial application.