【摘要】 介绍了LM567的组成及应用电路,重点介绍了将其用于超声波检测时对输入信号的要求及外围元件的要求。给出了以LM567作为检测元件的超声波测距电路及测量程序流程图。实验表明使用LM567作为超声检测集成电路具有较高的性能价格比。更多还原

【Abstract】 For the purpose of un-contact measurement of distance,an ultrasonic device of detecting distance was designed.The construction and the application circuit of integrated DLL decoder LM567 were introduced.The demand to the input signal and its periphery components were emphasized when used as the detector of ultrasonic.The circuit and flowchart using LM567 as the detection component of the ultrasonic to detect distance were given.It was indicated by the experiment that the higher ratio of performance to price can be reached using LM567 as the IC of the ultrasonic detection.更多还原