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Proceedings Paper

Analysis of sensing field to array sensor used for optical tomography
Author(s): Yang Li; Renhuang Wang; Yingna Zheng; Li Ge
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Paper Abstract

Array optical tomographic sensor is the key parts of optical tomography system. The analysis of sensing field to optical tomographic sensor is not only helpful to learn the interactional relation between the stimulating light field and the measured object's characteristics, but also instructive to optimize the spatial structure of array sensor and further illustrate the optical CT layer diagram rationally. The sensitivity distribution in sensing field of optical tomographic sensor mainly relates with the light wavelength, the extinction capability of measured media and the spatial structure of array sensors. By dividing the measured area in the form of square grid unit, analyzing the two-dimension spatial distribution relation of multi-azimuth fan beam in measured area and unitizing the sensitivity coefficient, the approximate calculating method of sensitivity distribution of optical sensing field is educes this paper. Based on the above-mentioned sensitivity distribution map, the spatial resolution and optimization parameters of sensors' array structure are further analyzed.

Paper Details

Date Published: 2 September 2003
PDF: 6 pages
Proc. SPIE 5253, Fifth International Symposium on Instrumentation and Control Technology, (2 September 2003); doi: 10.1117/12.521404
Show Author Affiliations
Yang Li, Guangdong Univ. of Technology (China)
Renhuang Wang, Guangdong Univ. of Technology (China)
Yingna Zheng, Guangdong Univ. of Technology (China)
Li Ge, Guangdong Univ. of Technology (China)


Published in SPIE Proceedings Vol. 5253:
Fifth International Symposium on Instrumentation and Control Technology
Guangjun Zhang; Huijie Zhao; Zhongyu Wang, Editor(s)

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