摘要
介绍了超声波测距的原理以及环境对测量准确度的影响,分析了测量误差产生的原因。阐述了仪器设计时超声波传感器的选择、计数频率的确定及盲区对测量的影响,指出了提高测量准确度的途径,重点阐述了利用软件修正误差的方法,使仪器达到了设计指标,满足了工业测量的实际需要。
The principle of measuring distance with ultrasonic,and the influence of environments on the measuring accuracy are introduced.The reason of measurein error is analyzed. When instrument is designed,the selection of ultrasonic sensor,the ascertainment of frequency count and the influence of blind area on measurement are expounded,the approach of improving measuring accuracy is pointed out, the method of correcting error with software is expounded emphatically.Design aims are achieved, measuring demands on industry are satisfied.
出处
《传感器技术》
CSCD
北大核心
2004年第6期8-11,共4页
Journal of Transducer Technology
关键词
超声波
传感器
测距
误差
信噪比
盲区
ultrasonic
sensor
measuring distance
error
signal noise ratio
blind area
