A Filament Hemispherical Surface Temperature Sensor
A technology of temperature sensor and hemispherical surface, applied in thermometers, applications of thermometers, and parts of thermometers, etc., can solve the problems of difficult performance of temperature sensors, difficulty in meeting the second requirement, difficulty in eliminating thermal pollution effects, etc., to reduce radiation effect of error
Active Publication Date: 2022-01-28
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 solution of the present invention will be further described below in conjunction with the drawings and embodiments.
[0015] like 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 effectively reduc...
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The invention discloses a wire-shaped hemispherical surface temperature sensor, which comprises a hemispherical shell shroud composed of a horizontally placed circular flat bottom surface and an arc surface shell, the lower surface of the flat bottom surface is provided with a temperature sensor probe, and the arc surface The upper surface of the surface shell is provided with a plurality of heat conduction wires; the upper and lower sides of the hemispherical shell shroud are respectively provided with a first reflective plate and a second reflective plate, and the first reflective plate and the second reflective plate pass through the first reflective plate A heat insulation column is connected, and the hemispherical shell air deflector is connected with the first reflector through the second heat insulation column on the arc surface shell. First of all, this design uses reflectors to reflect direct solar radiation and reflected radiation from the underlying surface to reduce the impact of temperature rise caused by direct solar radiation and reflected radiation on the temperature sensor probe; secondly, use thermal wires to dissipate heat from the spherical shell , to reduce the radiation error of the internal temperature sensor probe.
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...
Claims
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IPC IPC(8): G01W1/00G01K13/024G01K1/12
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