Embedded Capacitive Grid Sensing Technology for Torque Measurement

Abstract:

Torque measurement of transmission shaft has problems such as signal transmission, limited installation space and signal disturbance. In this paper proposes an embedded capacitive grid torque sensor. Through a special installation the output of capacitive grid sensor is proportional to twist angle, then torque can be calculated. The two electrodes of capacitive grid sensor can be embedded into the bearing and shaft respectively that reduces installation space, to improve the testability of transmission shaft. Experiments show that capacitive grid sensor performs high reliability and is able to be used in the case of strict environmental requirements in long time.

• Periodical: Advanced Materials Research (Volumes 468-471)
• Pages: 1551-1554
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.468-471.1551
• Online since: February 2012
• Authors: Rui Xie, Tie Hua Ma, Hong Jin, Dong Xing Pei
• Keywords: Capacitive Grid, Embedded Installation, Phase Difference, Torque Sensor

References

[1] C.B. Yu and H.Y. Tao: Instrument Technique and Sensor Vol. 12(2005), p.4（In Chinese）

[2] Y.P. Shi and C.W. Liu: Chinese Journal of Scientific Instrument Vol. 27(2006), p.508（In Chinese）

[3] X.Q. Wen and Y.Z. Zhang: Instrument Technique and Sensor Vol. 12(2001), p.1（In Chinese）

[4] F. Umbach and H. Acker: Mechatronics, Vol. 12(2002), p.1023

[5] C. Rinaldia, F. Gutmana, X.W. Heb, A.D. Rosenthalb and M. Zahn: Journal of Magnetism and Magnetic Materials Vol. 289(2005), p.307

[6] F. Reverter and X.J. Li: Sensors and Actuators A Vol. 138(2007), p.1

[7] P.D. Dimitropoulos and C. Kachris: Sensors and Actuators A Vol. 123–124(2005), p.36

[8] D.I. Kang and A.E. Eltawil: Measurement Vol. 40(2007), p.739

[9] T. Kakinoki and R. Yokoyama: Electric Power Systems Research Vol. 68(2004), p.248

[10] M.Zagnoni and A.Golfarelli: Sensors and Actuators A Vol. 123–124(2005), p.240