A temperature sensor for meteorological measurement with diversion surface

Abstract

The invention discloses a temperature sensor for meteorological measurement with a deflector surface, which comprises a first deflector cover and a second deflector cover with the same structural size, which are placed horizontally at corresponding intervals up and down and fixed through heat insulation columns, forming a guide cover between them. The center of the first wind deflector protrudes toward the center of the two wind deflectors to form a first arc guide surface, and the unprotruded part forms a plane ring, and the center of the second wind deflector faces toward the A second diversion arc surface is formed by a protrusion between the two diversion covers, and a fixed column is provided at the arc top of the first diversion arc surface / second diversion arc surface, and the extended end of the fixed column is provided with a temperature sensor probe. A first reflective plate is provided directly above the first wind deflector, and a second reflective plate is disposed directly below the second wind deflector. This design can effectively increase the airflow velocity around the temperature sensor probe, reduce the influence of direct solar radiation and reflected radiation on the temperature sensor probe, and reduce the radiation error of the temperature sensor probe.

Description

technical field [0001] The invention relates to the technical field of meteorological instruments, in particular to a temperature sensor for meteorological measurement with a diversion surface. Background technique [0002] Solar radiation during the day will cause the temperature sensor of the weather station to heat up, making its observed value higher than the air temperature of the surrounding environment. The error caused by this phenomenon is called solar radiation error. At present, the weather station uses shutters or natural ventilation radiation shields to avoid direct radiation from the sun to the temperature sensor probe and reduce radiation errors. However, because the white coating on the outer surface of the shutter or radiation shield is difficult to reflect 100% solar radiation, to a certain extent, the traditional shutter or radiation shield, especially its blades and rings, will still produce significant radiation heating. This causes the airflow flowing ...

AI Technical Summary

Problems solved by technology

The use of blades or rings helps to meet the first requirement, but it is difficult to meet the second requirement, making it difficult to eliminate the effect of thermal pollution

Therefore, there is a contradiction between the above two design requirements, which brings difficulties to the improvement of the performance of the temperature sensor.

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