Transparent object stress detection device based on micro polarizing film array
A technology of micro-polarizer array and stress detection, applied in measuring devices, force/torque/power measuring instruments, instruments, etc., can solve problems such as large errors, low measurement accuracy, and complicated steps
Pending Publication Date: 2020-10-23
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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This solves technical problems such as low measurement accuracy, complicated steps, and large errors
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific examples.
[0019] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "above", "below", "vertical", "horizontal" etc. are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
[0020] Such as figure 1 As shown, a schematic structural diagram of a transparent object stress detection device based on a micro-polarizer array, including a light source 7, a uniform plate 6, a polarizer 5, a quarter wave plate 4, a micro-polarizer ...
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The invention discloses a transparent object stress detection device based on a micro polarizing film array. The device comprises a light source, a light uniformizing plate, a polarizer, a 1 / 4 wave plate, the micro polarizing film array and a light intensity detector. A support is connected with one side of a fixing frame and used for horizontally supporting the light source, the light uniformizing plate, the polarizer and the 1 / 4 wave plate; the light uniformizing plate is arranged under the light source and used for uniformizing light emitted by the light source; the polarizer is arranged under the light uniformizing plate and used for converting the light emitted by the light uniformizing plate into linearly polarized light; the 1 / 4 wave plate is arranged above a sample to be detected,and the linearly polarized light emitted from the polarizer is converted into circularly polarized light after passing through the 1 / 4 wave plate, wherein the circularly polarized light is decomposedinto two beams of polarized light mutually perpendicular in polarization direction after passing through the sample to be detected, and the two beams of polarized light finally reach a photosensitivesurface of the light intensity detector after passing through the micro polarizing film array. The light intensity detector collects image information, and the stress value of the whole area of the sample to be detected can be obtained through calculation of the image processing element. The device is simple and convenient to operate, rapid in measurement, compact in structure and wide in application range.
Description
technical field [0001] The invention relates to a stress detection device, in particular to a stress detection device for a transparent object. Background technique [0002] Glass is an amorphous inorganic non-metallic material that is transparent, airtight and impervious to water. Plastics are polymer compounds that are polymerized from monomers as raw materials through addition polymerization or polycondensation reactions. At present, transparent materials mainly composed of glass and plastic are widely used in daily necessities, construction, automobiles, aerospace, electronic communications and other fields due to their high plasticity, good light transmission performance, easy processing, and good insulation. essential component that is missing. With the development of modern technology, the production process of flat plastic and glass has made great progress, but the stress existing in it has always been the key factor affecting the quality. [0003] The internal st...
Claims
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Login to View More IPC IPC(8): G01L5/00G01N21/01G01N21/21
CPCG01L5/0047G01N21/01G01N21/21
Inventor 许多李敬夏蒲春鹏刘洪村连博文
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA