This paper introduces property and feature of PIC16C711, analyses theory of measure distance by ultrasonic wave, gives hardware circuit and software design of range finder for back a car.
介绍了PIC 16 C711的性能和特点，分析了利用超声波测距的原理，给出了应用pic 16 C 711设计汽车倒车测距器的硬件电路和软件设计。
2
The parallelism examination is completed by making use of the range finder sensor examining the distance between the range finder and nozzle and the engine flange to adjust two planes parallelism.
平行度检测利用测距传感器检测距喷管与发动机法兰之间的距离来调节两平面的平行度。
3
In this paper, the error of light-electric range finder in highway curve survey is analysed. The control distance between two survey station is presented so as to control the precision.