Transmission-type visibility measuring device and measuring method

A measuring device and transmission type technology, applied in the direction of transmittance measurement, etc., can solve the problems of inaccurate measurement of the attenuation coefficient of the probe beam, measurement failure, etc., to improve long-term reliability, high long-term reliability, and suppress the influence of ambient temperature. Effect
CN101526475AInactive Publication Date: 2009-09-09NANJING UNIV OF INFORMATION SCI & TECH +1
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
NANJING UNIV OF INFORMATION SCI & TECH
Publication Date
2009-09-09
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides a transmission-type atmospheric visibility measuring device which has long-term reliability and can accurately measure visibility, and a measuring method. The transmission-type atmospheric visibility measuring device comprises a transmission part and a detection part, wherein the detection part comprises a receiving unit, a photoelectric signal processing unit, a data collecting unit and a computer control unit; the receiving unit adopts four-quadrant photodetectors; the light beam of each photodetector is provided with a photoelectric signal processing unit; signals output by the photoelectric processing unit is transmitted to the computer control unit through the data collecting unit; and the center coordinate of the four-quadrant photodetectors is controlled by a computer.
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Description

1. Technical field

[0001] The invention designs an optical radiation receiving and measuring device, in particular a transmission type atmospheric visibility measuring device, which belongs to the extinction coefficient measurement and automatic tracking device when the optical radiation energy propagates in the atmosphere. 2. Background technology

[0002] Atmospheric visibility plays an important role in atmospheric laser communication, image transmission and modern traffic technology. Visibility measurement has also been paid attention to by people. With the development of modern transportation network, especially the development of expressway, water transport and aviation industry, real-time monitoring of atmospheric visibility is required, and visibility measurement is becoming more and more important. The measurement of visibility relies on the measurement of the extinction coefficient of the beam. Typical measurement methods include forward scattering method and tran...

Claims

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