Meteorological air temperature measuring device

Abstract

The invention discloses an air temperature measuring device for meteorology. The lower ends of the three heat insulation fixing columns are fixedly installed on the lower shading plate, and the three heat insulation fixing columns are arranged in an equilateral triangle shape. The lower drainage table is installed on the three heat insulation fixing columns and located above the lower shading plate. The lower drainage body is installed on the lower drainage table, and the upper drainage table is fixedly installed on the three heat insulation fixing columns and located above the lower drainage table. The upper drainage body is mounted on the upper drainage table. The upper shading plate is installed at the top ends of the three heat insulation fixing columns. The suspension rod is installed on the upper drainage body, and the temperature measuring element is installed at the bottom of the suspension rod. The temperature measuring device can prevent various radiations from reaching the surface of the temperature measuring element to the greatest extent, is provided with a double-layer drainage device, can greatly increase the airflow speed around the temperature measuring element, improves the measurement precision of the temperature measuring device, has a certain drainage effect, improves the response speed of the temperature measuring element, and reduces the lag error of the temperature measuring element.

Description

technical field [0001] The invention belongs to the technical field of temperature measurement, and in particular relates to a temperature measurement device for meteorology. Background technique [0002] The temperature measuring device used in the weather station is affected by various radiations such as direct solar radiation, reflected radiation from the underlying surface, scattered radiation, and long-wave radiation, which will cause large measurement errors. In order to reduce this error, the temperature measuring device is usually equipped with a shutter box or a radiation shield to prevent various radiation from directly irradiating the temperature measuring element. However, it is impossible for the shutters and radiation shields to completely block all kinds of radiation, so the shutters and radiation shields will still have a certain radiation temperature rise, causing the surrounding air to be heated and flow into the shutters and radiation shields, resulting in...

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Problems solved by technology

Satisfying the above two design requirements at the same time, there is a certain contradiction, which brings difficulties to the improvement of the performance of the meteorological temperature measuring device

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