The Principle and Structure of Novel High-Precision Linear Time Grating Displacement Sensors

Abstract:

The existing grating type sensors such as optical grating sensor, have long been designed to rely on the precise mechanical space division technology, which is hard to develop without heavy investment. A theoretical concept, time-space coordinate transformation, was presented to realize measuring spatial displacement with time difference. Similar to the principle of circular time grating based on rotating electrical machine, linear time grating is designed based on the principle of linear motor, with which the physical and mathematical models of linear time grating are established. Based on these models linear time grating mechanical structure is designed, which has commercialization value. The resolution of linear time grating can achieve 0.1μm tested by National Institute of Measurement and Testing Technology.

• Periodical: Applied Mechanics and Materials (Volumes 236-237)
• Pages: 1216-1221
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.236-237.1216
• Online since: November 2012
• Authors: Dong Lin Peng, Ji Sen Yang, Xi Hou Chen, Zi Ran Chen
• Keywords: Displacement, Linear, Sensor, Time Grating

References

[1] Peng Donglin, Liu Chengkang, Tan Weimin, Study on the Theory of Time-space Coordinate Transformation and the Time Grating Displacement Sensor, Chinese Journal of Science Instrument, Vol. 21, No. 4, pp.338-342, (2000).

[2] Peng Donglin, Zhang Xinghong, Liu Xiaokang, Tan Weimin. Study on the Time Grating Displacement Sensor of the Field Type, Chinese Journal of Science Instrument, Vol. 24, No. 3, pp.321-323, (2003).

[3] Peng Donglin, Zhang Xinghong, Liu Xiaokang, Chen Xihou. Comparison Between the Principle of the New Precision Displacement Measurement Method Based on Time Space Coordinate Transformation and Traditional Method, Chinese Journal of Science Instrument, Vol. 27, No. 4, pp.423-426, (2006).

[4] X.K. Liu ,Y. Fei, D. Peng and X. Wang. Predictive Measurement Method for Time Grating Displacement Sensor, Measurement Technology and Intelligent Instruments Ⅷ: Key Engineering Materials, Vol. 381-382pp. 403-406, (2008).

DOI: 10.4028/www.scientific.net/kem.381-382.403

[5] Qiang Xifu. Sensor, China Machine Press, (1994).

[6] Li Mou. Position Detection and Digital Readout, China Machine Press, (1993).

[7] Lu Guogang. Modern Grating Measuring Technology, World Manufacturing Engineering and Market, No. 5, pp.10-13, (2002).