Unlock instant, AI-driven research and patent intelligence for your innovation.

Transmission type visibility standard device measuring system

A technology of visibility standard and measurement system, which is applied in the field of transmission type visibility standard measurement system, can solve problems such as the difference of observation value of scattering type/transmission type visibility equipment, and achieve the effect of solving the problem of no traceability, good stability and convenient calibration.

Active Publication Date: 2021-04-30
ZHONGHUAN TIG TIANJIN METEOROLOGICAL INSTR
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above existing technical conditions, the present invention designs a transmission-type visibility standard measurement system, that is, designs a short-baseline high-precision measurement visibility transmission equipment to solve the problem of scattering / transmission visibility caused by different manufacturers due to inconsistent calibration standards. Differences in equipment observations; solve the applicability of diffuse / transmissive visibility equipment in different atmospheric environments

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Transmission type visibility standard device measuring system
  • Transmission type visibility standard device measuring system
  • Transmission type visibility standard device measuring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, there are differences in the observed values ​​of diffuse visibility devices produced by different manufacturers in the same atmospheric environment. This is because the measurement principle of the diffuse visibility device is to invert the visibility by measuring the extinction coefficient of the local sampling space. This principle is based on the following assumptions: (1) assume that the atmosphere is homogeneous; The absorption and internal interaction optical effects are 0; (3) Assume that the scattered light intensity is proportional to the scattering coefficient. As a result, diffuse visibility equipment is greatly affected by particles such as sunlight, noise, sand and dust, and the accuracy and consistency between different products are poor.

[0022] Such as figure 2 As shown, the standard measuring system includes a tr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a transmission type visibility standard device measuring system. The etalon measuring system comprises a transmitting end, a receiving end, a testing end and a PC. The transmitting end comprises a laser, a spectroscope, a first power meter, a beam expander, a first control circuit and a cooperative reflecting surface. The receiving end comprises a converging lens, a second power meter, a range finder and a second control circuit. The test end comprises a calibration power meter and an attenuation slice black box. In order to solve the traceability problem of visibility measurement equipment, an attenuation piece is introduced into a calibration system, and the corresponding relation of transmittance and visibility of the attenuation piece is established. Therefore, a high-precision traceability basis can be provided for scattered visibility equipment in the meteorological field, and the problem of non-uniform assessment standards of related visibility equipment in China is solved.

Description

technical field [0001] The invention relates to a scattering-type / transmission-type visibility measuring instrument used at home and abroad, in particular to a measurement system of a transmission-type visibility standard. Background technique [0002] Meteorological and airport visibility measurement equipment mainly includes transmission and diffuse visibility equipment. Transmissive visibility equipment derives visibility by measuring the air permeability of a fixed length. The diffuse visibility device retrieves the visibility by measuring the extinction coefficient of the local sampling space, and the diffuse visibility device calculates the visibility value based on three assumptions: (1) assume that the atmosphere is homogeneous; (2) assume that the scattering of molecules, The absorption and internal interaction optical effects are 0; (3) Assume that the scattered light intensity is proportional to the scattering coefficient. Diffuse visibility equipment is small i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/59
CPCG01N21/59
Inventor 朱海博郝云霞陈静李金凤王喜宝马剑哲曹志鹏
Owner ZHONGHUAN TIG TIANJIN METEOROLOGICAL INSTR
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com