Electric rotating sample holder capable of measuring at any angle

Abstract

The invention provides the electric rotary sample holder capable of measuring at any angle, the electric rotary sample holder can be placed in different spectrophotometer instrument sample cabins, large-range and high-precision sample test angle adjustment can be carried out, and the electric rotary sample holder is used for researching the influence of a light incident angle on the performance of an optical thin film device. The device comprises a connecting bottom plate, a lifting table, an L-shaped supporting plate, a guide rail, a self-locking sliding block, a steering engine, a steering engine fixing plate and a sample table, according to the light path positions of different spectrophotometers, the lifting table is used for controlling the sample table to conduct longitudinal displacement, and the self-locking sliding block slides on the guide rail to control the sample table to conduct transverse displacement; the steering engine is adopted to drive the sample table to rotate for multi-angle test of the sample without replacing or adjusting the sample rack, so that the sample test accuracy is improved; and the device further comprises a polarizer, an analyzer, a sliding groove frame and a depolarizer, polarization characteristic detection of an optical thin film device sample can be carried out, and more performance tests of more materials can be met.

Description

technical field [0001] The invention discloses an electric rotating sample holder capable of measuring at any angle, which belongs to the technical field of optical measurement, and in particular relates to a device which can be placed in various spectrophotometer sample chambers to measure the transmittance of samples at any angle. Background technique [0002] Spectrophotometer is a qualitative or quantitative analysis of substances by using the absorption of light by substances at specific wavelengths or within a certain wavelength range, and has been widely used in various research, manufacturing and analysis fields. The spectrophotometer is also the main equipment for detecting optical thin film devices, but for some optical thin film devices in special use environments, such as optical filters, in practical applications, oblique incident light often passes through the optical filter, and with the increase of the incident angle The optical characteristics of the filter ...

AI Technical Summary

Problems solved by technology

The current spectrophotometer measurement system generally uses simple fixed tooling, such as using a backing plate with a fixed angle (30°, 45°, etc.) for auxiliary measurement, so that it can only measure the transmittance and reflectance of the sample at a special angle. And it is difficult to change the sample angle on-line, which cannot reflect the overall performance of the sample scientifically and comprehensively; or artificially adjust the rotating sample (CN 210294064) to study the impact of light incident angle on the performance of optical thin film devices, which is prone to human error. Errors can be accumulated more during multiple groups of experiments; or by changing the incident angle of light (CN 111076901), rather than changing the impact of measuring the incident angle of light on the performance of optical thin film devices by changing the sample angle, this requires special transformation and design of the instrument, Not universal, poor universality

In addition, due to the different positions of the optical path of each instrument, the sample holder cannot be used universally. Once the sample holder is destructively damaged during installation or use, it will directly affect the accuracy of the test results and the normal use of the instrument.

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