Design of Large-Stroke Linear Displacement Sensor with High-Precision Based on SS495A1 Technology

Abstract:

Design of large-stroke linear displacement sensor with high-precision based on SS495A1 technology uses permanent magnet as the excitation source and a series of linear Hall devices as the sensing element. Having been encoded, linear Hall device output signal enters into DSPIC30F3011 A/D conversion to do conversion, and obtains the absolute displacement value after DSPIC30F3011 calculating, and then transmits to the host computer via RS485 to achieve the non-contact, absolute measurement of the linear displacement. The sensor shell and seal have special materials and special processes so that it can function stably under water, especially in the marine environment.

• Periodical: Applied Mechanics and Materials (Volumes 397-400)
• Pages: 1638-1642
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.397-400.1638
• Online since: September 2013
• Authors: Yun Lou, Xiang Yang Zhao
• Keywords: dsPIC30F3011, Large-Stroke Linear Displacement Sensor, SS495A1

References

[1] Dong J. H, Zhang D. L, Qin H.L. Design of Displacement Sensor in Electric-hydraulic Control System. Instrument Technique and Sensor, Vol. 1(2007), p.3. In Chinese.

[2] Zhang T. Design of Hall element, multi-pole magnetic ring speed sensor. China Equipment, Vol. 4(2009), p.169. In Chinese.

[3] Du Y. P, He X.Y. Brief discussion on temperature compensation technology of sensor. Electronic Design Engineering, Vol. 6(2009), p.63. In Chinese.

[4] Zhang Y. Y, Meng F. B, Yu Zh.D. Application of linear Hall component on non-contact position measurement. Journal of Dalian Polytechnic University, Vol. 3(2011), p.222. In Chinese.

[5] He L.G. Principles and Applications of DSPIC30F motor and power series of digital signal controllers. Beijing : Beihang University  Press, 2007. In Chinese.

[6] Lu G.G. A review of development of lenear displacement sensor and current products. World Manufacturing Engineering&Market, Vol. 1(2005), p.78. In Chinese.