Extinction device

A technology of extinction and extinction cylinder, which is used in measurement devices, material analysis by optical means, suspension and porous material analysis, etc. The effect of saving running space

Inactive Publication Date: 2020-06-09
ZHONGYUAN OPTOELECTRONICS MEASUREMENT & CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a light extinction device to solve the problem of inaccurate measurement of existing visibility measuring instruments in a small space

Method used

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Embodiment Construction

[0014] Examples of extinction devices:

[0015] The extinction device proposed in this embodiment is suitable for visibility measurement, and the structure and use process of the extinction device are described by taking the application of the extinction device in a visibility measuring instrument as an example, as follows figure 1 As shown, the visibility measuring instrument includes a transmitter 1 , a receiver 2 and an extinction device. The transmitter 1 and the receiver 2 are arranged at a certain angle to form a sampling space 4 .

[0016] The transmitting end 1 is used to emit the light spot 3 (the light spot 3 is a light beam with a certain diameter emitted from the transmitting end 1), and irradiates the light spot 3 to the sampling space 4; the receiving end 2 is used to receive the scattered light of the sampling space 4 (the scattered light here is The light is generated due to the reflection of light by the particles in the sampling space 4); the extinction devic...

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Abstract

The invention relates to an extinction device, and belongs to the technical field of visibility measurement. The extinction device comprises an extinction cylinder and an extinction hollow ball; the extinction cylinder comprises an incident port for stray light to enter, an extinction cylinder wall for reflecting the stray light for multiple times, and an emergent port for outputting the stray light; and the extinction hollow ball is connected with the extinction cylinder in an optical sealing manner. The extinction device disclosed by the invention can be used for consuming the strength of stray light in visibility measurement; after the extinction device absorbs the stray light, the stray light can be prevented and reduced from entering a receiving end, the influence of the stray light on a measurement result is avoided, the accuracy of a visibility measurement result is improved, and through the extinction device, the space required by normal operation of the visibility measurementinstrument can be simply and conveniently saved.

Description

technical field [0001] The invention relates to a light extinction device, which belongs to the technical field of visibility measurement. Background technique [0002] The content of dust particles and fog in the atmosphere directly affects the distance of atmospheric visibility, and the level of visibility has a particularly important impact on the transportation industry. Therefore, it is necessary to measure the visibility to provide real-time and accurate visibility data to guide the judgment of traffic travel. [0003] The current visibility measuring device is the visibility measuring instrument. According to the nature of the measuring light, the visibility measuring instrument can be divided into three types: forward scattering visibility measuring instrument, backscattering visibility measuring instrument and transmission visibility measuring instrument. The forward scattering visibility measuring instrument includes a transmitting end and a receiving end. The tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/49G01N15/06
CPCG01N21/01G01N21/49G01N15/06G01N2021/0112G01N2015/0693
Inventor 李百慧孟晓东郭银博李秀红韩振宇
Owner ZHONGYUAN OPTOELECTRONICS MEASUREMENT & CONTROL TECH
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