【摘要】 阐述了超声波液位测量系统的基本组成;重点说明了一种满足复杂工况测量要求的超声波液位测量仪的设计,包括新型驱动电路,发射电路与接收电路之间的接口电路和信号处理电路等;提出了单探头超声波测量系统中减小盲区的方法;介绍了基于AVR系列单片机的智能化超声波液位测量系统,以及数据处理算法和温度补偿。经过测试,仪表实际测量误差为0.2%~0.8%,能够满足工业现场超声波测量的需要。更多还原

【Abstract】 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.更多还原