Paper Title:
A High Precision Circuit Based on Digital Techniques for Roundness Measurement
  Abstract

In ultra high precision roundness measurement, a high accuracy and high integrated measuring circuit system equipped with inductive sensor are a developing trend. In order to meet the demand, a novel method to improve the accuracy of measuring circuit of amplitude modulation sensor using digital synthesizing, digital phase sensitivity detection (PSD), and digital set average techniques, is presented. The measuring circuit system based on the method is easy to realize and to operate. It can be plugged directly into an ISA Bus slot for use. Experimental results show that the stability of the sensor measuring system that consists of the measuring circuit system and a Taylor inductive sensor reaches nanometer accuracy. The digital measuring circuit of amplitude modulation can not only be applied widely in amplitude modulation measuring circuit for use of inductive sensors to improve the accuracy of the sensor measuring circuit system but also used in the one for use of capacitance sensors and magnetic grating sensors.

  Info
Periodical
Key Engineering Materials (Volumes 295-296)
Edited by
Yongsheng Gao, Shuetfung Tse and Wei Gao
Pages
271-276
DOI
10.4028/www.scientific.net/KEM.295-296.271
Citation
W.Q. Zhao, J. B. Tan, Z. Xue, Z.D. Feng, "A High Precision Circuit Based on Digital Techniques for Roundness Measurement", Key Engineering Materials, Vols. 295-296, pp. 271-276, 2005
Online since
October 2005
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Price
$32.00
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