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A Photometer Variable Angle Test Fixture

A test fixture and photometer technology, applied in the field of spectrum measurement, can solve the problems of inaccurate measurement and large error, and achieve the effects of improved accuracy, low cost and simple operation

Inactive Publication Date: 2016-07-27
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a photometer variable angle test fixture to solve the technical problems of inaccurate measurement and large errors in the prior art

Method used

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  • A Photometer Variable Angle Test Fixture
  • A Photometer Variable Angle Test Fixture
  • A Photometer Variable Angle Test Fixture

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0021] See attached figure 1 , attached figure 2 And attached image 3 , a variable-angle test fixture of the present invention includes a support mechanism 1 and two identical sample clamping mechanisms 2, the support mechanism 1 includes a connection unit 101 and an angle conversion unit, and the connection unit 101 includes a U-shaped groove and Three through holes, the connecting unit 101 is connected with the corresponding position of the fixture bearing seat on the photometer, and the angle conversion unit is two trapezoidal grooves 102, the centerline of the two trapezoidal grooves 102 coincides with the centerline of the support mechanism 1;

[0022] The sample holding mechanism 2 includes a sample holder 201, a trapezoidal structure 204 and a U-shaped spring piece 202. The sample holder 201 is provided with a circular through hole 203. The sample holder 201 and the trapezoidal structure 204 are integrated, and the U-shaped spring piece 202 passes through. Screws ar...

specific Embodiment approach 2

[0034] See attached Figure 7 , the angle formed by the two trapezoidal grooves 102 in the support mechanism 1 is 120°. When testing the transmission spectrum at an incident angle of 60°, that is, the angle between the two samples 3 to be tested is 120°, the measured transmission spectrum is The product of the transmission spectra of the two samples at an incident angle of 60°.

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Abstract

The invention discloses a photometer angle-changing test fixture, belongs to the field of spectral measurement and solves the technical problems of inaccurate measurement and large errors in the prior art. The photometer angle-changing test fixture comprises a supporting mechanism and two same sample clamping mechanisms, the supporting mechanism comprises a connecting unit and an angle changing unit, the connecting unit comprises a U-shaped groove and three through holes, the connecting unit is connected with a fixture bearing seat of the photometer, the angle changing unit is formed by two trapezoidal grooves, a center line of the two trapezoidal grooves coincides with that of the supporting mechanism, the sample clamping mechanisms comprise sample stands, trapezoidal structures and U-shaped spring pieces, through holes are formed in the sample stands, the sample stands and the trapezoidal structures are integrated, the U-shaped spring pieces are connected with the sample stands through screws, and the trapezoidal structures are matched with the trapezoidal grooves. The photometer angle-changing test fixture has the advantages that the stability is good, the operation is simple, and time can be saved.

Description

technical field [0001] The invention belongs to the field of spectrum measurement, and in particular relates to a photometer variable-angle test fixture. Background technique [0002] Photometer is an analytical instrument with many uses and wide coverage, which is widely used in various fields. [0003] In the field of optics, it is often necessary to obtain the transmission spectra of samples at different incident angles. But when the light is obliquely incident, the refraction of the light in the sample will cause the outgoing light to deviate from the incident light, and the detector cannot receive the light. It is necessary to measure two identical samples at the same time to adjust the refracted light back. In the process of measurement, the accuracy of the angle between the two samples directly affects the accuracy of the measurement, but the existing photometer variable angle attachment, gear transmission, rotates the sample through the adjustment rod, and the point...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/02G01N21/01
Inventor 时光张立超梅林武潇野才玺坤赵灵贺健康隋永新杨怀江
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI