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High-precision grating sensor demodulation devices network interface based on DM9000A

LIU Hong-yu(刘红雨)1,2,MA You-chun(马游春)1,2, LI Jin-ming(李锦明)1,2,RAN Zi-bo(冉自博)1,2

 

(1. Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education,Taiyuan 030051, China;2. Department of Electronic Science and Technology, North University of China, Taiyuan 030051, China)

 

Abstract: High-precision fiber Bragg grating sensor demodulation instrument with wide-range dynamic scanning can effectively improve the measuring range of the optical fiber grating sensor. Ethernet communication module is an extremely important part of the high-precision grating sensor demodulation device. Network interface based on Ethernet control chip DM9000A is used to send and receive the Bragg grating sensing pulse. The network transformer YL18-2050S is used to convert and filter the pulse from network. The transmitting and receiving program of grating demodulation, hardware circuit of Ethernet transmission interface are designed. The experimental results show that the network interface can achieve accurate and real-time transmission of the grating sensing information at high speed.

 

Key words:DM9000A; network interface; grating sensing

 

CLD number: TP212.4+4, TP393.11 Document code: A

 

Article ID: 1674-8042(2013)02-0170-05  doi: 10.3969/j.issn.1674-8042.2013.02.017

 

References

 

[1] Falciai R, Trono C, Lantema G, et al. Continuous monitoring of wooden works of art using fiber Bragg grating sensors. Journal of Cultural Heritage 2003(4): 285-290.
[2] Takahashi N, Yoshimura K, Takahashi S, et al. Characteristics of fiber Bragg grating hydrophone. IEICE Transactions on Electronics, 2000, E83-C(3): 275-281.
[3] Davicom Semiconductor, Inc. DM9000A data sheet. [2012-12-23]. http://html.alldatasheet.com/html-pdf/329725/DAVICOM/DM9000A/294/1/DM9000A.html.
[4] Davicom Semiconductor Inc. DM9000 application notes Ver120, 2004.
[5] Saponara S, Fanucci L, Coppola M. Design and coverage-driven verification of a novel network-interface IP macrocell for network-on-chip interconnects. Microprocessors and Microsystems, 2004, 35(6): 579-592.

 

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