Meteorological optical line-of-sight detection device

Abstract

The invention discloses a meteorological optical visual range detection device. Its light source is equipped with a parallel light emitter (2), an emission light intensity sampler, an optical path extender, an optical receiver and a data processor (9), wherein the light source is a white light source (1), and the parallel light emitter The device (2) is a Galileo telescope, the optical path extender is a meteorological optical visual range observation environment simulation cabin (3) with a length ≥ 10m and a built-in turbidimeter (36), the control terminal of the simulation cabin (3) and the data processor (9) Electrically connected, the light entrance hole (31), the primary plane reflector (4), the secondary plane reflector (6), the final plane reflector (5) and the light exit hole are respectively placed on the longitudinal side walls (35), the optical receiver consists of an optical antenna (7) and an electrical signal detector (8). It can realize the measurement range of transmissive visibility from 10m to 30km in a space where the working baseline is 10m, and can be widely used to test the accuracy and consistency of the visibility meter measurement.

Description

technical field [0001] The invention relates to a detection device, in particular to a meteorological optical line-of-sight detection device. Background technique [0002] Visibility is an index that reflects the transparency of the atmosphere. Meteorologically, it refers to the maximum horizontal distance that a person with normal eyesight can see and recognize the target from the sky background under the weather conditions at that time. It can be objectively measured and used in meteorological optical vision. Cheng said. The World Meteorological Organization (WMO) defines the meteorological optical range as the length of the atmospheric path through which the luminous flux of a parallel beam of an incandescent lamp with a color temperature of 2700K weakens to 0.05 of its initial value. [0003] In automated observations, visibility is usually represented by the meteorological optical range defined by the atmospheric horizontal transmittance. Generally speaking, the obser...

AI Technical Summary

Problems solved by technology

Although this long optical path gas detection device can increase the optical path of the absorption spectrum of the gas to be measured, it also has shortcomings. First, the length of the optical path cannot be accurately determined, and it is difficult to obtain accurate measurement results; secondly, Unable to solve the problem that the measurement limit of the transmissive visibility meter is only 10km

Images