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Proceedings Paper

Embedded design on optical coherence tomography control system
Author(s): Zhiguang Wang; Xiaoping Wang; Genliang Zhong
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Paper Abstract

This thesis analyzes the principle of single-mode fiber OCT system and its control signal. Then it puts forward a design thought which it integrates various signals into the embedded OCT control system. These signals include galvanometer driving signals for rapid scanning optical delay line (RSOD), high-frequency sawtooth signals for Phase Modulator, control signals for electronic control displacement platform and amplifying and filtering circuit of scanning signals. Then we design and construct an embedded OCT integrated control system which uses ARM9 processor S3C2410A as the core. The system is integrated with many wave generating circuits, driving circuit for electric control displacement platform and amplifying& filtering circuit of feedback signals. The system discards the separated OCT system structure which is made up of many general instruments and has a high cost. The result is satisfactory. Besides, we introduce embedded Linux operating system into the system. As a result, the whole system has such features as low development and production cost, excellent extensibility and strong real time control function. Experimental results show that various control signals generated by our system meet the design demand and can be applied to practical OCT system.

Paper Details

Date Published: 14 November 2007
PDF: 7 pages
Proc. SPIE 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 67223M (14 November 2007); doi: 10.1117/12.783533
Show Author Affiliations
Zhiguang Wang, Zhejiang Univ. (China)
Xiaoping Wang, Zhejiang Univ. (China)
Genliang Zhong, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 6722:
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies

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