Paper Title:
Design of Absolute Magnetic Grid Displacement Sensor Based on Encoding Principle
  Abstract

A new kind of magnetic grid absolute linear displacement sensor is introduced. The displacement measuring method of two new kinds of magnetic grid sensors for single-row and double-row magnet are also proposed in this paper. The double-row magnet sensor is composed of the look-up table column and encoding column, the look-up table column achieves the calculation of relative displacement within a cycle. Precision of the double-row magnet sensor is analyzed and the resolution can reach 0.75µm. The displacement measurement of single-row magnet is realized by adding Hall group based on the encoding column. The signal is processed according to the voltage curves induced by multi-group of Halls.

  Info
Periodical
Chapter
Chapter 6: Power and Control Electronics
Edited by
Xingui He, Ertian Hua, Yun Lin and Xiaozhu Liu
Pages
336-340
DOI
10.4028/www.scientific.net/AMM.88-89.336
Citation
J. Z. Liu, S. H. Hao, T. Chen, "Design of Absolute Magnetic Grid Displacement Sensor Based on Encoding Principle", Applied Mechanics and Materials, Vols. 88-89, pp. 336-340, 2011
Online since
August 2011
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Price
$32.00
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