The Research of Accurate Measuring Distance Means Based on the Ultrasound Technology

摘要：

The characteristics of two traditional methods-direct time difference and phase difference-for ultrasonic transmission time measurement are analyzed, brings forward a new measuring technology, the integral-oddment separate measuring technology (IOSMT), which has the superiorities and gets over the disadvantages of the two traditional methods. By using this technology, broad measuring range and high precision are reached simultaneously. Finally the hardware and software design of the measurement system based on this technology are given. In theory, the designed system based on this IOSMT has the precision of 0.15ns. By increasing the frequency of ultrasonic and bit number of the ADC, the precision on the stage of ps can also be reached.

关键词： ultrasonic transmission time direct time difference phase difference integral-oddment separate measuring technology(IOSMT)

作者: SUN Jian ZHAO Heming LI Yun GONG Jianhua GENG Xiaolong

作者单位: School Of Mechatronics , North university of China, Taiyuan, 030051

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）