Design of Ultrasonic Distance-measuring System Using Temperature Compensation Methods

摘要：

In this paper,the principle of ultrasonic distance measurement is described,the main error sources of ultrasonic distance measurement are analyzed also.A method of improving precision of ultrasonic distance measurement in air, in which the transmission speed of ultrasonic wave if corrected by measured air temperature and the forward edge of receive wave can be determined accurately by use of the receive wave feedback-time method with the software.Based on the idea , the circuit and software of ultrasonic distance measurement system have been designed to apply DSP technology.Experiment indicates that the measuring precision of ultrasonic distance measurement system is higher and its circuit is simpler.

关键词： ultrasonic receive wave feedback measuring precision DSP

作者: Hongwei Peng Qin Gao ZhiGuo Hu WenCheng Zhu

作者单位: Institute of Disaster-Prevention Science and Technology, Sanhe, Hebei 065201

会议类型: 国际会议

会议名称: 2012 International Conference on Electric Technology and Civil Engineering(2012 电子技术与土木工程国际会议 ICETCE 2012)

会议地点: 三峡

会议语种:英文

页码: 3111-3113

在线出版日期: 2012-05-18（万方平台首次上网日期，不代表论文的发表时间）