Luping Yan, Lan Dong, Tong Wang, Shang Lu, Yuanying Han, Xiaoyang Liu, Luyan Zhang, Haoyue Yan, Na Ma, Zhenqiang He, Zhiyong Ke, Lingling Men, Bo Li, Xiaolong Wang, Jing Liang, Tao Luo. Calibration method of capacitance sensor for particle accelerator wire position measurement[J]. High Power Laser and Particle Beams, 2022, 34(11): 114002
- High Power Laser and Particle Beams
- Vol. 34, Issue 11, 114002 (2022)
Fig. 1. Vibration wire pre-collimation unit measurement system
Fig. 2. Capacitive displacement sensor system
Fig. 3. Working principle diagram and working curve of capacitive displacement sensor
Fig. 4. Differential structure principle and working curve
Fig. 5. Circuit principle of the capacitance sensor
Fig. 6. Input and output of the frequency discriminator
Fig. 7. Wire position calibration system
Fig. 8. 34901A multiplexer
Fig. 9. The relation between voltage and position of wire in horizontal and vertical directions
Fig. 10. WPS calibration route
Fig. 11. WPS calibration processing program
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Table 1. Phase I long term stability test
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Table 2. Phase II long term stability test
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Table 3. Phase III long term stability test
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