Small high-performance scattering-type visibility measuring device and measuring method thereof

Abstract

The invention provides a small high-performance scattering-type visibility measuring device and a measuring method thereof. The small high-performance scattering-type visibility measuring device is high in long-term reliability and accuracy. The small high-performance scattering-type visibility measuring device comprises a transmitting part and a detecting part, wherein the transmitting part comprises a stable light intensity driving source, a transmitting light intensity monitoring circuit, a transmitting light fiber and a fiber collimator; the detecting part comprises a receiving unit, an optoelectronic signal processing and acquiring unit and a computer control unit; the receiving unit receives and transmits scattered light signals by adopting fibers, the optoelectronic signal processing and acquiring unit is provided for detected scattered light beams, a signal output by the optoelectronic signal processing and acquiring unit is sent to the computer control unit, and the computer control unit is used for calculating the visibility.

Description

technical field [0001] The invention designs a light radiation receiving and measuring device, in particular a scattering type atmospheric visibility measuring device, belonging to a scattering coefficient measuring device when light radiation energy propagates in the atmosphere. Background technique [0002] Atmospheric visibility plays an important role in atmospheric optical 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 transmission method. In the modern traffic network...

AI Technical Summary

Problems solved by technology

Since the light source and photodetector of the existing scattering-type visibility meter are respectively arranged in the emitting head and the receiving head, generally the inner space of the emitting head and the receiving head is narrow, and in addition to prevent moisture, they are all sealed, so the heat dissipation performance is extremely poor. Causes the light source and photodetector to be greatly affected by changes in ambient temperature

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