【摘要】 阐述了超声波、发射、接收及检测的基本原理和应用,并进行了简单的应用举例。利用超声波进行非接触测距在某些场合有着显著的优点,同时该技术又是一种精度较高,费用较低的测量技术。更多还原

【Abstract】 The principle of ultrasonic,method of discharging and receiving by ultrasonic and the basic principle and the use of ultrasonic measuring are introduced in this article,examples in this domain are also included.There are many outstanding advantages in un-touching measuring by ultrasonic in some occasion.At the same time,it is a measuring technique with high precision and low cost.更多还原