Multifunctional optical fiber optical grating sensing experiment instrument

A fiber grating and multi-functional technology, applied in the field of experimental instruments, can solve the problems of easy introduction of errors, inconvenient use, working principle of fiber grating and inability to demodulate the process, etc., to achieve the effect of reducing measurement errors and intuitive matching process
CN1687713AInactive Publication Date: 2005-10-26HUNAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN UNIV OF SCI & TECH
Publication Date
2005-10-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention is the multi-functional fiber raster sensing tester, which comprises the box, the light source interface bringing broad band source, the cantilever with the same fiber raster sensing head, the sensing unit, the adjusting unit, the data processing unit having the photoelectric detector, the multiway switch, the amplifying circuit, the filter circuit, the data collecting card and the data processing module, the data displaying unit having the displaying form and the displaying terminal and the fiber couple link. The invention overcomes the complicated adjusting method and high price of the instrument of the prior art and realizes the hand adjustment of the winding degree of the cantilever; a plurality of fiber raster be the important teaching content.
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Description

technical field

[0001] The invention relates to an experimental instrument, in particular to a multifunctional optical fiber grating sensing experimental instrument for teaching. Background technique

[0002] The existing optical fiber grating sensing experiment instrument used for teaching can realize strain and temperature testing. The Chinese invention patent application with the publication number CN1605835A discloses the detection of parameters such as current, tilt angle, vibration and displacement, as well as the optical fiber light guide, optical fiber bending loss, and temperature detection experiments. However, the physical parameters disclosed in the application are single-point tests, which cannot meet the application of fiber grating sensing technology, such as the experimental teaching of distributed tests. It adopts separately packaged components, so the cost is not low, and the displacement micrometer is manually read, which is easy to introduce errors and i...

Claims

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