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Reflection-transmission type dual-purpose photoelastic instrument

A technology of reflection-transmission and photoelasticity, which is applied in the field of photomechanics, can solve the problems that cannot meet the requirements of reflective photoelasticity, and achieve the effect of flexible use and convenient adjustment

Pending Publication Date: 2020-05-08
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it can only be used alone as a transmission photoelasticity meter, and cannot meet the requirements for use as a reflection photoelasticity meter

Method used

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  • Reflection-transmission type dual-purpose photoelastic instrument
  • Reflection-transmission type dual-purpose photoelastic instrument
  • Reflection-transmission type dual-purpose photoelastic instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] Such as figure 1 , a reflection-transmission dual-purpose photoelasticity instrument, comprising:

[0036] A support guide rail 100, the support guide rail 100 is made up of the first support guide rail 101, the second support guide rail 102 and the third support guide rail 103 connected in sequence, the second support guide rail 102 is located in the middle, the first support guide rail 101 and the third support guide rail 103 The adjustable angle is connected to the two ends of the second bracket guide rail 102;

[0037] A plurality of rotating mirror frames 200 are used to install 1 / 4 wave plate 1100 or polarizing light source or polarizing plate 1200, and are installed on the first bracket guide rail 101 and the third bracket guide rail 103 with adjustable positions respectively;

[0038] A loading device 300 is used for clamping the test piece 800 and is detachably installed on the second support rail 102 .

[0039] The rotating mirror frame 200 is installed on t...

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PUM

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Abstract

The invention relates to a reflection-transmission type dual-purpose photoelastic instrument. The reflection-transmission type dual-purpose photoelastic instrument comprises a support guide rail, a plurality of rotating mirror brackets and a loading device, wherein the support guide rail is composed of a first support guide rail body, a second support guide rail body and a third support guide railbody which are connected in sequence, the second support guide rail body is located in the middle, and the first support guide rail body and the third support guide rail body are connected to the twoends of the second support guide rail body in an angle-adjustable mode; the plurality of rotating mirror brackets are used for mounting 1 / 4 wave plates or polarized light sources or polaroids, and the plurality of rotating mirror brackets are mounted on the first bracket guide rail and the third bracket guide rail in a position-adjustable manner respectively; and the loading device is used for clamping a to-be-tested piece and is detachably mounted on the second bracket guide rail. Compared with the prior art, the reflection-transmission type dual-purpose photoelastic instrument can be used as a transmission type photoelastic instrument and can further be used as a reflection type photoelastic instrument.

Description

technical field [0001] The invention relates to the technical field of photomechanics, in particular to a reflection-transmission dual-purpose photoelasticity instrument. Background technique [0002] The photoelasticity method, referred to as the photoelasticity method, is an experimental technique that combines optics and mechanics for stress analysis. The photoelasticity instrument currently used in classroom teaching has a complex structure, requires a specific light source, requires multiple precision optical parts, and is large in size and high in cost, so it cannot be popularized in large quantities. At present, there are very few miniaturized transmission photoelastic instruments, which are inconvenient to carry, and it is also inconvenient to study small models. [0003] Patent CN110186601A discloses a transmission photoelasticity instrument, including a bracket; a rotating assembly, which is installed in the bracket for rotation, including: a plurality of rotating...

Claims

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Application Information

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IPC IPC(8): G01L1/24
CPCG01L1/241
Inventor 郑红浩朱立明曾伟明朱金龙吴昊鲁书浓茹东恒
Owner TONGJI UNIV
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