Raman nondestructive testing apparatus used for fiber micro-area structure and method thereof
A non-destructive testing, fiber technology, applied in the direction of Raman scattering, material excitation analysis, etc., can solve the problems of inability to detect the structure of fiber micro-regions, and achieve good application prospects, simple preparation process, simple and easy operation
Inactive Publication Date: 2012-04-25
DONGHUA UNIV
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a Raman non-destructive testing device and method for fiber micro-domain structure, so as to solve the problem that the fiber micro-domain structure cannot be comprehensively tested at present
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Embodiment 1
[0032] Such as figure 1 As shown, the present invention is a Raman non-destructive testing device for fiber micro-domain structure, including a Raman spectrometer 4, a rotating device 5 is placed on the Raman spectrometer 4; the rotating device 5 includes a large rotating Shaft 6 and small rotating shaft 7; the two ends of described large rotating shaft 6 and small rotating shaft 7 have gears meshing with each other respectively; described small rotating shaft 7 drives large rotating shaft by rotating crank rocker 1 at one end 6 rotation; the middle part of the large rotating shaft 6 is provided with two symmetrical sample stages 2 to divide the large rotating shaft 6 into two sections; the test fiber 3 is fixed between the two symmetrical sample stages 2 .
[0033] The invention provides a method for detecting fiber axial micro-regions using a Raman non-destructive testing device for fiber micro-region structures, the method comprising the following steps:
[0034] (1) the t...
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The invention relates to a Raman nondestructive testing apparatus used for a fiber micro-area structure and a method thereof. The testing apparatus comprises a Raman spectrometer and a rotary apparatus placed on the surface of the Raman spectrometer; the testing method employs a laser microscopic confocal Raman spectrometer, and comprises the following steps: 1) fiber axial testing: a fiber sample is fixed on the rotary apparatus, and is consistent with the axial direction of a revolving shaft, the rotary apparatus is placed on the Raman spectrum sample platform, laser spot is axially carried out line scanning along the fiber; 2) fiber circumferential testing: a crank at the right side is rotated further for conversing fiber circumferential position, Raman line scanning is respectively performed at the positions of n1, n2, n3 to nn on circumference; 3) fiber cross section testing: fiber is vertically embedded by resin, resin is solidified, surface scanning is carried out on the cross section of the fiber under object lens. According to the invention, the problem that the fiber micro-area structure can not performed omnibearing testing is solved, the Raman scattering has no damage on samples, and the sample preparation is simple.
Description
technical field [0001] The invention belongs to the technical field of material testing, and in particular relates to a Raman non-destructive testing device and method for fiber micro-domain structures. Background technique [0002] Fiber refers to the aspect ratio in 10 3 Soft and elongated materials with a thickness of several microns to hundreds of microns. Fiber can be divided into two categories: natural fiber and chemical fiber. With the development of industry and the continuous development of science and technology, the use of fibers continues to expand, so the performance requirements of fibers are getting higher and higher. High-performance fibers are chemical fibers with special physical and chemical structures, properties and uses, or special functions. High-performance fibers have a series of excellent properties such as strong corrosion resistance, low wear, high temperature resistance, radiation resistance, flame resistance, high voltage resistance, high st...
Claims
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IPC IPC(8): G01N21/65
Inventor 吴琪琳全海宇秦文贞韩浩李利伟石彦平蔡则田
Owner DONGHUA UNIV