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Device for absorbing transmission light during turbidity measurement

A detection process and absorption device technology, applied in the direction of measurement devices, material analysis through optical means, scattering characteristic measurement, etc., can solve the problems of light absorption effect discount, turbidity detection influence, sample pool dust, etc., to achieve reflection efficiency High, less stray light, good directivity effect

Inactive Publication Date: 2016-10-12
TIANJIN YOUKESEN TECH
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0007] 3) There is dust on the sample cell;
[0009] At present, there are two main methods to solve the interference of transmitted light in the process of turbidity detection: one is to coat the plane on which the transmitted light is irradiated with a black light-absorbing material, but the light-absorbing material can only absorb a small part of the light, and most of the transmitted light still produces reflection
Moreover, the light-absorbing material of some online turbidity analyzers is set at the bottom of the instrument, and the particles settled in the solution will cover the light-absorbing material, which greatly reduces the light-absorbing effect; Light is reflected in other directions, but the transmitted light is not controlled in a space isolated from the photodetector, which still affects the detection of turbidity

Method used

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  • Device for absorbing transmission light during turbidity measurement

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Embodiment Construction

[0018] In order to make the present invention easier to understand, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] It can be seen from the drawings that the device for absorbing transmitted light in the turbidity detection process of the present invention has a light incident hole (1), the light incident hole (1) is facing the incident direction of the transmitted light, and the primary reflector (2 ) is at a 45-degree angle to the incident direction of the transmitted light, and the mirror surface of the secondary reflector (3) is at right angles to the mirror surface of the primary reflector (2). The incident light enters the isolation space (6) after two reflections, and is Absorbed by the light absorption trap (4) in the isolation space (6). There are two fixing holes (5) at the bottom of the device.

[0020] Described reflection mirror (5) uses glass mirror.

[00...

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PUM

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Abstract

The invention discloses a device for absorbing transmission light during turbidity measurement. The device comprises a light inlet hole, a primary reflector, a secondary reflector, a light absorption trap and a fixing hole. The device is fixed to the plane perpendicular to transmission light penetrating through a sample through the fixing hole in a base plate. The transmission light irradiates on the primary reflector through the light inlet hole, and a 45-degree angle is formed between the transmission light and the primary reflector. After being reflected by the primary reflector, the transmission light irradiates on the secondary reflector, and a right angle is formed between the surface of the secondary reflector and the surface of the primary reflector. The transmission light is reflected by the secondary reflector into the light absorption trap in isolated space and then absorbed by the light absorption trap.

Description

technical field [0001] The present invention relates to a device for absorbing light passing through a sample during turbidity testing, and more specifically, the present invention relates to a device for eliminating light generated by light passing through a sample during scattered light turbidity testing. A device that affects the detection accuracy of stray light. Background technique [0002] Turbidity, also known as turbidity, is a water quality parameter used to reflect the content of suspended matter in water, such as sediment, clay, algae, organic matter and other microbial organisms. Turbidity is the most direct evaluation of water quality by human senses, and it is a very important water quality parameter. [0003] The turbidity detection uses the light scattering theory, that is, when the suspended particles in the solution encounter the light beam, they will scatter and absorb the light. There is a linear relationship between them, but the stray light in the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/47
CPCG01N21/01G01N21/47G01N2201/064
Inventor 刘越
Owner TIANJIN YOUKESEN TECH
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