Modification of Displacement Signals Collected by Laser Sensors

摘要：

Laser displacement sensors are highly-frequent used instrument for dynamic response measurement in wind tunnel tests. The fundamental performances of three types of laser sensors used in wind tunnel laboratory are introduced, and several factors for influencing precision are reviewed. For the cases that the object moves in both translational and torsionl orientations, the modification expressions for the directly collected displacement signals are deduced. As one engineering example, the dynamic responses of sutong Bridge aeroelastic model are modified with the former proposed formula. The research results indicate that the measurement error without displacement modification increase with the rotational angle. For Sutong Bridge model, the displacement deviations attain 6% if the modification is not carried out.

关键词： laser sensor time-variant displacement wind tunnel test signal modification

作者: Fuyou Xu Zhang Zhe Cailiang Huang Yanbin Tan

作者单位: Wind Tunnel Laboratory,Dalian University of Technology,Dalian,116024 China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 2117-2120

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）