Design and construction of a multi-sensor position monitoring system applied to key components of synchrotron sources

• Published in: Nuclear science and techniques Vol. 27; no. 6; pp. 79 - 85
• Main Authors: Wang, Wei, Tang, Zheng, He, Xiao-Ye, Zhang, Qiang
• Format: Journal Article
• Language: English
• Published: Singapore Springer Singapore 01.12.2016; University of Science and Technology of China, Hefei 230029, China
• Subjects: Energy; Hadrons; Heavy Ions; Nuclear Energy; Nuclear Physics; 不锈钢板; 位置传感器; 关键部件; 同步加速器; 坐标变换方法; 坐标系统; 实时监测系统; 自由电子激光器; Unified coordinate system; Multi-sensor position monitoring system; Wire position sensor; Hydrostatic levelling system; Tiltmeter; Accelerator
• ISSN: 1001-8042; 2210-3147
• DOI: 10.1007/s41365-016-0132-4

High-accuracy position monitoring of key components is required for modem synchrotron sources, such as free-electron lasers and diffraction-limited storage rings. Although various position monitoring sensors have been adopted to monitor the displacement of key compo- nents in each direction in real time, these monitoring sys- tems are usually based on their own coordinate system. Data from such systems are meaningful when evaluating and examining the data from each positioning monitoring system in a unified coordinate system. This paper presents the design and construction of a multi-sensor position monitoring system （MPMS）. A hydrostatic levelling system, a wire position sensor （WPS） and a tiltmeter are fixed to a stainless steel plate that has been calibrated by a coordinate-measurement machine. Several plates form the MPMS. The system must compensate for the sag of the stretched wires so that the WPSs create a straight line. The method of the coordinate transformation from the sensor coordinate system to the MPMS coordinate system was thoroughly studied. An experimental MPMS that includes five plates was setup in a 20-m tunnel, and a validation study to verify fully the feasibility of the MPMS was performed.