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采用超声波对高炉炉衬厚度进行测量,设计中用高压对超声波探头进行激励,声波会在金属棒表面和底面产生回波,利用后续的信号接收电路对信号进行放大、滤波、检波和电压比较,再由单片机对信号进行识别,并计算出表面和底面回波信号的间隔时间,进而推出炉衬的厚度;模块会将厚度及设定的声速进行本地显示,模块支持RS485通信接口及Modbus通信协议,可以使用上位机通过485总线向模块发送读取指令使模块将数据传到上位机,并有上位机对数据进行显示、保存、计算等处理。
Ultrasonic measurement of the thickness of the lining of the blast furnace, the design of high pressure on the ultrasonic probe excitation, the sound wave will produce echo on the surface of the metal rod and the bottom, the use of subsequent signal receiving circuit to amplify, filter, detection and voltage comparison, and then The signal is recognized by the singlechip, and the interval time of the echo signals on the surface and the bottom is calculated, then the thickness of the lining is deduced; the module displays the thickness and the set speed of sound locally, the module supports RS485 communication interface and Modbus communication protocol, The use of host computer through the 485 bus to send the read command to the module so that the data will be transmitted to the host computer, and a host computer data display, save, calculation and other processing.