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Proceedings Paper

Research on non-linearity correction of 2D-PSD
Author(s): Xiawei Zheng; Sihai Chen; Wei Chen; Xin Wu; Sihua Xiang
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Paper Abstract

PSD(Position Sensitive Detector) is a kind of electrophotonic detector based on lateral photoeffect. PSD is widely used in non-contact measurement as it's highly sensitive to the position of incident light. But, it suffers from non-linearity because of nonuniform surface resistance which reduces the measuring precision and reliability. In this paper, The non-linear error of 2D-PSD(Two-dimensional PSD) is partly corrected using algorithm for duo-linear interpolation based on LabVIEW(Laboratory Virtual Instrument Engineering Workbench). The corrected result shows that the linearity of 2D-PSD is greatly improved without increasing the complexity of hardware. After the non-linearity correction, the usable area of PSD is extended and the precision of the measurement system is improved.

Paper Details

Date Published: 29 October 2009
PDF: 7 pages
Proc. SPIE 7514, Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors, 75140Y (29 October 2009); doi: 10.1117/12.843121
Show Author Affiliations
Xiawei Zheng, Wuhan National Lab. for Optoelectronics (China)
Sihai Chen, Wuhan National Lab. for Optoelectronics (China)
Wei Chen, Wuhan National Lab. for Optoelectronics (China)
Xin Wu, Wuhan National Lab. for Optoelectronics (China)
Sihua Xiang, Wuhan National Lab. for Optoelectronics (China)


Published in SPIE Proceedings Vol. 7514:
Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors

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