Virtual test system of cable tension force based on LabVIEW

Qi Fu; Yan Deng; Taopeng Qiao; Puqiang Yan

doi:10.1117/12.521831

2 September 2003 Virtual test system of cable tension force based on LabVIEW

Qi Fu, Yan Deng, Taopeng Qiao, Puqiang Yan

Proceedings Volume 5253, Fifth International Symposium on Instrumentation and Control Technology; (2003) https://doi.org/10.1117/12.521831
Event: Fifth International Symposium on Instrumentation and Control Technology, 2003, Beijing, China

Abstract

Measuring the tension force of cable is important to cable-stayed bridges, but there is lack of effective test systems. To solve this problem, a new test system of cable force based on LabVIEW was developed according to vibration frequency method. This paper discussed the functions and characteristics of this system beginning from its theoretical background. Through given hardware components, the vibration signal of cable was collected and transferred to computer. Then the signal was processed and the cable force could be reckoned by special designed software program. During spectrum analysis, the most important step in signal processing, DTFT method was used to obtain precise fundamental frequency. In this system, LabVIEW environment was adopted to ensure high reliability. Field experiment has proved that the virtual test system can fulfill the requirement of cable force measurement very well.

Citation Download Citation

Qi Fu, Yan Deng, Taopeng Qiao, and Puqiang Yan "Virtual test system of cable tension force based on LabVIEW", Proc. SPIE 5253, Fifth International Symposium on Instrumentation and Control Technology, (2 September 2003); https://doi.org/10.1117/12.521831

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