Research and Design for High Precision Ultrasonic Distance Measurement System

Abstract:

In this article, discussed the traditional method of ultrasonic distance measurement , analyzed the main factors that restrict to impove the precision, and according to the energy attenuation of ultrasonic transmission, designed a measurement method based on rebuilding the digital signal waveform, this method solved the measurement precision problem caused by the traditional threshold method, the accuracy is no longer affected by the attenuation of ultrasonic energy, achieved the consistency precision in full range, makes the measuring accuracy is nearly one hundred times higher than the threshold method.

• Periodical: Applied Mechanics and Materials (Volume 442)
• Pages: 354-359
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.442.354
• Online since: October 2013
• Authors: Hua Guo*, Sheng Wen Yu
• Keywords: Distance Measurement, Energy Attenuation, Ultrasonic, Waveform Rebuild

References

[1] Liu Ning-ning, Yu Lin-lin. The Measurement of the Attenuation Coefficient of Supersonic Waves with the Standing Wave Method. physical experiment of college, 2011, 24(5): 15-17.

[2] Zeng Xiang-jin, Wang Min, Huang Xin-han. Application & Research of Auto-Gain Circuit in Ultrasonic Place Measurement System. Measurement and control technology . 2005, 24(7): 69-71.

[3] Bu Ying-yong, He Yong-qiang, Zhao Hai-ming, Ren Feng-yue. Study on Detection Precision of the Ultrasonic Distance Measurement Device with High Precision. Journal of Zhengzhou University (Engineering Science). 2006, 27(1): 86-90.

[4] Zhang Ke, Liu Hai-gang, Research on a Method of Imploving Ultrasonic Ranging Precision. Modern Electronic Technique. 2007, 15: 139-141.

[5] Yuan Jie, Chang Tai-hua. Design of ultrasonic distance measurement system based on STM32 microprocessor. Electronic Design Engineering . 2011, 19(5): 76-78.

[6] Luo Wei, Chen Feng. Study of Error Compensation in Robot Ultrasonic Ranging Based on Wavelet Transformation. Coal Mine Machinery. 2007, 28(2): 51-54.

[7] Xue Li-fang, Wang Hui, Yan Wen-jun. Distance Measurement Via Ultrasonic. Automation & Instrumentation. 2007, 5: 17-20.

[8] Wang Hong-yun. design of automobile-reversing radar system based on ultrasound distance-measurement. International Electronic Elements. 2008, 8: 69-73.

[9] Luo Zhong-hui, Huang Shi-qing. the Method to Improve the Precision of Ultrasonic Distance Measurement. Machinery Design & Manufacture. 2005, 1: 109.