超声波测距仪的设计 电子测距仪要求测量范围在0.10～5.00m，测量精度1cm，测量时与被测物体无直接接触，能够清晰稳定地显示测量结果。由于超声波指向性强，能量消耗缓慢，在介质中传播的距离较远，因而超声波经常用于距离的测量，如测距仪和物位测量仪等都可以通过超声波来实现。-Ultrasonic range finder range finder design requirements of the electronic measurement of the range of 0.10 ~ 5.00m, measurement accuracy 1cm, measured with the measured object without direct contact, being able to clearly demonstrate the stability of the measurement results. Strong point as a result of ultrasonic energy consumption slow, in the medium distance transmission, which are often used for ultrasonic distance measurement, such as range finders and all level measurement can be achieved through ultrasound.