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Silicon solar cell-based automatic polarimeter without Faraday modulator

A silicon photovoltaic cell and polarimeter technology, applied in the direction of polarization influence characteristics, etc., can solve the problems of reduced measurement accuracy and high temperature rise, and achieve the effects of simple instrument structure, improved reliability, and reduced cost

Inactive Publication Date: 2016-11-16
上海仪电物理光学仪器有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide an automatic polarimeter based on a silicon photocell that cannot use a Faraday modulator for the existing polarimeter, which is prone to high temperature rise and lower measurement accuracy due to the use of a Faraday modulator, and uses a silicon photocell to detect , realize the miniaturization of the polarimeter, and make the instrument structure simple, improve the reliability and reduce the cost

Method used

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  • Silicon solar cell-based automatic polarimeter without Faraday modulator
  • Silicon solar cell-based automatic polarimeter without Faraday modulator
  • Silicon solar cell-based automatic polarimeter without Faraday modulator

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0042] as attached Figure 1~3 As shown, an automatic polarimeter based on a non-Radiant modulator of a silicon photocell, which includes a light source 1, an achromatic condenser lens 2 is installed on the outgoing light path of the light source 1, and after the light is emitted through the achromatic condenser lens 2 Injected into the polarizer 3, the sample tube 4 is installed on the outgoing light path of the polarizer 3, the incident end of the sample tube 4 is installed with an interference filter 5, the light passes through the sample in the sample tube 4 and then enters the analyzer assembly 6. The silicon photocell assembly 7 is installed on the outgoing light path of the analyzer assembly 6;

[0043] A glass sheet 8 is installed on the light opening of the analyzer assembly 6, and at least two polarizers 9, 9' perpendicular to the polarizatio...

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Abstract

An automatic polarimeter based on a non-Radiant modulator of a silicon photocell, characterized in that: it comprises a light source (1), an achromatic condenser lens (2) is installed on the outgoing light path of the light source (1), and the light is The chromatic aberration condenser lens (2) exits and enters the polarizer (3), the sample tube (4) is installed on the exit light path of the polarizer (3), and the incident end of the sample tube (4) is installed with an interference filter (5), the light is injected into the analyzer assembly (6) after passing through the sample in the sample tube (4), and the silicon photocell assembly (7) is installed on the outgoing light path of the analyzer assembly (6); the present invention adopts a silicon photocell detection, realize the miniaturization of the polarimeter, and make the instrument structure simple, the reliability improved, and the cost reduced.

Description

technical field [0001] The invention belongs to the technical field of material analysis instruments, and in particular relates to an automatic polarimeter based on a non-Radiic modulator of a silicon photocell. Background technique [0002] The polarimeter is an instrument for measuring the optical rotation of a substance. Through the measurement of the optical rotation, the concentration, content and purity of the substance can be analyzed and determined. Widely used in sugar, pharmaceutical, petroleum, food, chemical and other industrial sectors and related institutions of higher learning and scientific research units. [0003] With the development of industry, more and more industries also need to use polarimeters to test their respective products. At present, most of the automatic polarimeters on the market use sinusoidal mechanisms or worm gears; servo motors or stepping motors, high The combination principle of precision relative or absolute angle encoder, Faraday mo...

Claims

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Application Information

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IPC IPC(8): G01N21/21
CPCG01N21/21
Inventor 孙流星邵懿芳
Owner 上海仪电物理光学仪器有限公司
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