Method for error compensation of time reference in ultrasonic 3D positioning

被引：0

作者：

Yan X.-Z. ^{[1
]}

Wang H.-Y. ^{[1
]}

Wang X. ^{[2
]}

机构：

[1] College of Communication Engineering, Jilin University, Changchun

[2] School of Mechanical and Aerospace Engineering, Jilin University, Changchun

来源：

Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2019年 / 49卷 / 02期

关键词：

Flight time; Infrared time benchmark; Short baseline; Signal and information processing; Three dimensional ultrasonic positioning;

D O I：

10.13229/j.cnki.jdxbgxb20171196

中图分类号：

学科分类号：

摘要：

To achieve high precision flight time measurement of short baseline 3D ultrasonic positioning system, the causes of infrared time reference error are analyzed and a measuring method of infrared time base error is proposed. With regard to time benchmark compensation method, identical power supply circuits are used in transmitting unit and receiving unit, and infrared signal is transmitted through cable directly from transmitting unit I/O port to receiving unit I/O port, therefore, accurate transmitting instantaneous time is acquired by the receiving unit. At the same time the pulse width of decaying infrared signal, which propagates from transmitting unit to receiving unit in air, is measured in the receiving unit. The quadratic curve equation, which is relates the decaying infrared pulse width to the time benchmark errors, is fitted by the least square method. Experiment results show that the compensable time benchmark error of this method is 3~11 μs. © 2019, Jilin University Press. All right reserved.

引用

页码：640 / 646

页数：6

共 15 条

[1]

Wang G.-S., Improved accuracy of ultrasonic measuring instruments with accurate detection of ultrasonic propagation time, Acoustic Technology, 1, pp. 50-54, (1985)

[2]

Ma L.-L., Guo K., Wang J.-Z., Analysis of the accuracy of transmission time in liquid ultrasonic flow measurement, Instrument Meter, 33, 5, pp. 1028-1034, (2012)

[3]

Yao C., Si Y.-J., Lang L.-Q., Et al., ECG P, T wave complex detection algorithm based on lifting wavelet, Journal of Jilin University(Engineering and Technology Edition), 43, pp. 177-182, (2013)

[4]

Zhang Q., Xu X., Gao S., Research on the separation and isolation of ultrasonic ranging based on infrared synchronization, Journal of Nanjing Normal University, 17, 2, pp. 24-29, (2017)

[5]

Zhu Ge J.C., Wu J., Zhan X.-L., Precision ultrasonic ranging method based on adaptive wavelet denoising method, Journal of Jilin University(Engineering and Technology Edition), 47, 4, pp. 1301-1307, (2017)

[6]

Chen J., Sun X.-Y., Lin L., Et al., Method to precisely measure arrival time of ultrasonic, Chinese Journal of Scientific Instrument, 33, 11, pp. 2423-2428, (2012)

[7]

Sun X.G., Qiu C., A dynamic calibration method of broad band infrared on-line measurement system, Second International Conference on Instrumentation, pp. 414-417, (2012)

[8]

Zhang X.-H., Zhang H., Chen X.-H., A method for precision measurement of ultrasonic transmission time, Journal of Beijing Institute of Technology, 31, 6, pp. 717-721, (2011)

[9]

Liu Y., Cui Y.-J., Wang J.-W., Design of high-precision signal source based on precision time benchmark, Instrumentation Sensor, 11, pp. 50-53, (2016)

[10]

Li Z., Fang Y.-H., Luo J., Et al., Design of amplifying and conditioning circuit for weak infrared signal, Journal of Atmospheric and Environmental Optics, 8, 5, pp. 385-394, (2013)

← 1 2 →