提高超声测距分辨力的分析与设计  

Analysis and design for increasing the resolution of ultrasonic distance-measurement

作　　者：郑丰隆[1] 赵洪亮[1] 黄鹤松[1] 

机构地区：[1]山东矿业学院仪器仪表研究所,泰安271019

出　　处：《应用声学》1998年第1期34-37,共4页Journal of Applied Acoustics

基　　金：煤炭青年科学基金

摘　　要：本文分析了分辨力与随机误差的定量关系，并以此为指导选择和设计了超声发射、接收、测时等电路以及数字滤波方法，提高了超声测距的精度和分辨力．The paper analyses the quantitative relation between the resolution and random error, As a guide to design the circuits for ultrasound transmitting and receiving,time- measurement, and digital wave-filter, as a result, the accuracy and resolution ofthe ultrasonic distance-measurement is increased.

关 键 词：分辨力 单片机 超声测距 

分 类 号：TH761.2[机械工程—仪器科学与技术]