Temperature sensor for surface air temperature observation

A temperature sensor and air temperature technology, applied in the field of meteorological instruments, can solve the problems of difficult temperature sensor performance, difficulty in meeting the second requirement, difficulty in eliminating thermal pollution effects, etc., and achieve good ventilation environment, good timeliness, and reduce impact effects

Active Publication Date: 2020-06-16
NANJING UNIV OF INFORMATION SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 pol

Method used

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  • Temperature sensor for surface air temperature observation
  • Temperature sensor for surface air temperature observation

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[0015] The technical solution of the present invention will be further described below in conjunction with the drawings and embodiments.

[0016] Such as figure 1 with figure 2 The temperature sensor for observing the surface air temperature shown includes a first deflector 1 and a second deflector 2 arranged below the first deflector 1. The first deflector 1 and the second deflector The plates 2 are all horizontally placed round truncated cone structures with a small upper and a large lower bottom, and both are hollow structures with an open bottom. The lower bottom of the first baffle 1 and the upper bottom of the second baffle 2 are on the same plane . The opening angle of the second deflector 2 is greater than the opening angle of the first deflector 1.

[0017] It also includes a deflector ring 3, the deflector ring 3 is a hollow truncated cone structure with a large upper and a smaller bottom surface, and the lower edge of the deflector ring 3 and the lower bottom of the f...

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Abstract

The invention discloses a temperature sensor for surface air temperature observation. The temperature sensor comprises a first flow guide plate and a second flow guide plate arranged below the first flow guide plate, and a flow guide ring piece, wherein the first flow guide plate and the second flow guide plate are both of a horizontally-placed circular truncated cone structure with the small upper portion and the large lower portion and are both of a hollow structure with the open lower bottom; the flow guide ring piece is of a hollow circular truncated cone structure with the large upper portion and the small lower portion and the open upper bottom surface, and the lower bottom edge of the flow guide ring piece and the lower bottom edge of the first flow guide plate coincide and are spliced; and the first flow guide plate and the second flow guide plate are connected and threaded by a heat insulation column, upper and lower extending ends are connected with a first reflecting plate and a second reflecting plate respectively, and a temperature sensor probe is arranged at the upper bottom of the second flow guide plate. The temperature sensor has the beneficial effects that the area of the air inlet is increased, the side surface forms an air gathering inclined face, horizontal air flow higher than the flow guide ring piece can be guided to enter, the measured temperature has good timeliness, the ventilation quantity is increased, and therefore lag errors are reduced, the structure has a relatively good ventilation environment, and radiation errors are reduced.

Description

technical field [0001] The invention relates to the technical field of meteorological instruments, in particular to a temperature sensor used for surface air temperature observation. Background technique [0002] In the temperature observation, the heat exchange between the temperature sensing element and the air is done by heat conduction to establish a heat balance. Since the air has little ability to absorb radiant energy, especially short-wave radiant energy, direct solar radiation and ground reflected radiation will affect the accuracy of sensor temperature measurement under natural conditions. In the process of using the temperature sensor in the weather station for temperature measurement, solar radiation during the day will cause the temperature sensor of the weather station to heat up, making its measured 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...

Claims

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Application Information

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IPC IPC(8): G01W1/00G01K13/02G01K1/12G01K13/024
CPCG01W1/00G01K13/02G01K1/12G01K13/024
Inventor 杨杰刘清惓丁枫陈高颖袁宇
Owner NANJING UNIV OF INFORMATION SCI & TECH
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