Filamentous hemispherical temperature sensor
A temperature sensor, hemispherical technology, applied in the direction of thermometers, thermometer applications, thermometer components, etc., can solve the problems of temperature sensor performance difficulties, difficult to meet the second requirement, difficult to eliminate thermal pollution effects, etc., to reduce radiation. effect of error
Active Publication Date: 2020-06-16
江苏佐都数字科技有限公司
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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 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.
Method used
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[0014] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0015] Such as figure 1 and figure 2 The shown filamentary hemispherical surface temperature sensor includes a hemispherical shell shroud composed of a horizontally placed circular flat bottom surface 101 and a curved shell 102. This structure can effectively guide natural wind to circulate on its surface and enhance the surrounding airflow velocity , to improve its heat dissipation performance. The lower surface of the flat bottom surface 101 is provided with a temperature sensor probe 2, and the temperature sensor probe 2 is located at the center of the flat bottom surface 101, so that the temperature sensor probe 2 is less affected by radiation heat pollution and reduces radiation errors. 2. It is directly connected with the outside atmosphere, which can sense the temperature of the outside airflow in real time, and can ...
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The invention discloses a filamentous hemispherical temperature sensor, which comprises a hemispherical shell flow guide cover consisting of a circular flat bottom surface and a cambered surface shellbody which are horizontally arranged, wherein a temperature sensor probe is arranged on the lower surface of the flat bottom surface, and a plurality of heat conducting wires are arranged on the upper surface of the cambered surface shell body; a first reflecting plate and a second reflecting plate are arranged above and below the hemispherical shell flow guide cover respectively, the first reflecting plate and the second reflecting plate are connected by using a first heat insulation column, and the hemispherical shell flow guide cover is connected with the first reflecting plate through using a second heat insulation column on the cambered surface shell. The filamentous hemispherical temperature sensor has the technical effects that: firstly, the reflecting plates are used for reflecting direct solar radiation and reflecting radiation of a lower cushion surface, so that the influence of temperature rise caused by the direct solar radiation and the reflecting radiation on a probe ofthe temperature sensor is reduced; and secondly, the spherical shell radiant heat is dissipated through the heat conduction wire, and the radiation error of the internal temperature sensor probe is reduced.
Description
technical field [0001] The invention relates to the technical field of meteorological instruments, in particular to a filamentary hemispherical surface temperature sensor. 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 into its interior to b...
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IPC IPC(8): G01W1/00G01K13/02G01K1/12G01K13/024
CPCG01W1/00G01K13/02G01K1/12G01K13/024
Inventor 杨杰刘清惓陈高颖邓玄
Owner 江苏佐都数字科技有限公司