ZHAO Ke, XIANG Ying, WANG Zhong, et al. Development of high accuracy ultrasonic range finder[J]. 2003, (2): 55-57. DOI: 10.13873/j.1000-97872003.02.020.
?The distance measurement without touching is realized by the ultrasonic sensor in this system.The system is composed of AT89C2051 single chip processor
ultrasonic transmitting circuit
receiving and magnifying circuit
data collecting circuit and displaying circuit.The ultrasonic range finder is characteristic of high integration
fast response
high precision and high ratio of performance to price.