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Proceedings Paper

Implement trigger for a NI data acquisition card PCI 5105 in the measurement studio development environment for a high speed demodulator based on fiber Fabry-Pérot tunable filter (FFP-TF)
Author(s): Hongtao Zhang; Shangming Yang; Lingling Fan; Pengfei Wang; Xilin Zhao; Zhenhua Wang; Hong-Liang Cui
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Paper Abstract

In this paper we report a scheme of low-cost, small-size differential electrical converter to change analog trigger signals into digital trigger signals. This converter successfully resolves the incompatibility between the digital trigger mode of NI (National Instruments) data acquisition card PCI 5105 in Measurement Studio development environment for a demodulator and the requirement from instability of spectra of fiber Bragg grating (FBG) sensors. The instability is caused by intrinsic drifts of FFP-TF inside this high speed demodulator. The obtained results of frequency response about the converter have clearly demonstrated that this method is effective when the frequency of trigger signal is less than 3,000 Hz. This converter can satisfy the current requirements of demodulator based on FFP-TF, since mostly actual working scanning frequency of FFP-TF is less than 1,000 Hz. This method may be recommended to resolve similar problems for other NI customers who have developed their data acquisition system based on Measurement Studio.

Paper Details

Date Published: 12 April 2010
PDF: 7 pages
Proc. SPIE 7643, Active and Passive Smart Structures and Integrated Systems 2010, 76432T (12 April 2010); doi: 10.1117/12.836221
Show Author Affiliations
Hongtao Zhang, Stevens Institute of Technology (United States)
Shangming Yang, Yantai Univ. (China)
Lingling Fan, Stevens Institute of Technology (United States)
Pengfei Wang, Stevens Institute of Technology (United States)
Xilin Zhao, Yantai Univ. (China)
Zhenhua Wang, Yantai Univ. (China)
Hong-Liang Cui, Stevens Institute of Technology (United States)


Published in SPIE Proceedings Vol. 7643:
Active and Passive Smart Structures and Integrated Systems 2010
Mehrdad N. Ghasemi-Nejhad, Editor(s)

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