JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2010, Vol. 40 ›› Issue (1): 37-41.

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Detection of pottery clay content in ceramic slurrybased on backscattering theory

  

  1. School of Electrical and Electrical Engineering, Shandong University of Technology, Zibo 255049, China
  • Received:2009-01-20 Online:2010-02-16 Published:2009-01-20

Abstract:

Based on the Mie scattering theory, if the incident wavelength, incident intensity, detection distance, particle size, refractive index and backscatteringangle are  all known, the intensity of backscattering light is proportional to particle concentration. In the experiment, one of the laser optical fibers irradiates ceramic mud through a doubleD optical fiber sensor, the other receivesthe backscattering laser light that goes through the ceramic mud. The measured voltage andits corresponding ceramic mud’s argil content relationship was analyzed, whichwas nonlinear for ceramic mud of mass fraction between 0%~40%, and linear for ceramic mud of mass fraction between 40%~60%.The ceramic mud of mass fraction of 40% and 60% were measureds and a line equation was obtained  by signal processingbackscattering laser changes into voltage. Then several ceramic mud samples whose mass fractionchanging was between 40%~60% were measured, and the result showed  the valiity of the line equation, and that  the backscattering light was proportional to the mass fraction of the  particle.

Key words: optical fibers; ceramic mud; linear equations

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