Abstract
The paper made a research on the fiber Bragg grating sensor demodulation system, which was based on virtual instrument labview and it developed a friendly upper monitor software. Based on the LM algorithm, the software realized rapid and accurate spectral data fitting, improving dynamic characteristics and measuring precision of the system. Depending on different fiber Bragg grating sensors, it can realize flexible calibration. It has the functions of collection, display and data storage, which can flexibly design alarm threshold according to the practical application. The fiber Bragg grating sensors can be identified by the software so that the distributed network, with large capacity optical fiber sensing, can be achieved.
Highlights
Fiber Bragg grating (FBG) sensors have attracted considerable research interests due to their encoded characters, anti-interference ability and capability of large—scale multiplexing [1]
As a new kind of optical passive components, FBG has the characteristics of high signal-tonoise, low loss and wide measuring range [2]
The fiber Bragg grating sensor demodulation platform can be completed by development tools, such as Visual C++, Delphi and Labview to realize data transmission, file
Summary
Fiber Bragg grating (FBG) sensors have attracted considerable research interests due to their encoded characters, anti-interference ability and capability of large—scale multiplexing [1]. It passes the command to the lower computer, which, according to the instruction, processes the gathered data and through the USB interface sends it to PC, the host computer [7], to realize the functions of analysis showed and data storage on it. The fiber Bragg grating sensor demodulation platform can be completed by development tools, such as Visual C++, Delphi and Labview to realize data transmission, file. With a powerful data processing and programming function, it is a system combining a high performance hardware module and a flexible software to accomplish test and measurement tasks. We will complete the software design of the fiber Bragg grating sensor demodulation system by Labview, and achieves functions of data acquisition, display, saves and warning, etc
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