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Optics Letters

Optics Letters


  • Vol. 36, Iss. 20 — Oct. 15, 2011
  • pp: 4068–4070

Indirect measurement of the intensity of incident light by the light transmission fluctuation method

Shouxuan Qin and Xiaoshu Cai  »View Author Affiliations

Optics Letters, Vol. 36, Issue 20, pp. 4068-4070 (2011)

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The light transmission fluctuation method is a simple and useful method for in situ and in-line measurement of particle size and concentration. To accomplish the measurement, it is necessary to know the intensity of incident light or background signal I 0 . However, measuring I 0 during in-line applications is hard. In this Letter, an algorithm is proposed to indirectly measure I 0 based on the variation of transmitted light signals. Experiments have been carried out to verify the algorithm and the maximum deviation between premeasured I 0 and indirectly measured I 0 is less than 2.5%.

© 2011 Optical Society of America

OCIS Codes
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(290.2200) Scattering : Extinction
(290.5850) Scattering : Scattering, particles

ToC Category:

Original Manuscript: July 11, 2011
Revised Manuscript: September 14, 2011
Manuscript Accepted: September 20, 2011
Published: October 12, 2011

Shouxuan Qin and Xiaoshu Cai, "Indirect measurement of the intensity of incident light by the light transmission fluctuation method," Opt. Lett. 36, 4068-4070 (2011)

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