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Soil heat flux sensor

A sensor and soil heat technology, applied in the field of meteorological measuring instruments, can solve the problems of poor stability, affecting the measurement accuracy, low reliability of the thermal conductivity of the soil layer, etc., and achieve the effect of good stability and high sensitivity

Inactive Publication Date: 2008-02-13
北京华创维想科技开发有限责任公司
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Problems solved by technology

[0002] The traditional one-time soil heat flux sensor, because the body is made of rubber, is easily damaged by ants and mice. Because the internal electric heating pile adopts the winding method, and the output voltage at both ends of the single electric heating pile is not only inconvenient to manufacture, but also stable Poor performance, which affects the measurement accuracy
Less confidence in studying the energy balance of the soil and the thermal conductivity of the soil layer

Method used

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  • Soil heat flux sensor

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Embodiment Construction

[0009] Fig. 1 is a schematic diagram of the external structure of the soil heat flux sensor of the present invention. Wherein, 1 is the body, 3 is the cover plate, and 4 is the hole leading the wire from the thermopile. Fig. 2 is a schematic structural diagram of the soil heat flux sensor of the present invention, wherein an inner tank 5 is provided in the body 1 for storing two thermopiles 2 connected in series, and the thermopile 2 is pressed and sealed with a cover plate 3 . The body 1 is made of corrosion-resistant and insect-resistant polytetrafluoroethylene material. The soil heat flux sensor uses a thermopile to measure the temperature gradient. The heat flux sensor receives heat radiation and outputs it in the form of voltage, which is proportional to the heat flux.

[0010] The thermopile 2 in the soil heat flux sensor of the present invention can be two monomers connected in series, or two or more monomers connected in series, so as to obtain higher measurement sens...

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Abstract

The invention relates to a soil thermal flux sensor for measuring soil energy balance and soil layer heat conductivity, including a body (1). An inner groove (5) for storing a thermopile (2) is arranged on the body (1). The outer lateral of the thermopile (2) is equipped with a cover plate (3). The thermopile (2) consists of two serial monomers. One end of the body (1) is equipped with a conductor (4). The body (1) is made of a material made from polytetrafluoroethylene with corrosion resistance and insect resistant performances. The thermopile arranged in the body comprises a plurality of serial monomers. The soil thermal flux sensor of the invention has the advantages of high measurement sensitivity, good stability and corrosion and insect resistance.

Description

technical field [0001] The invention relates to a meteorological measuring instrument, in particular to a soil heat flux sensor which is used in conjunction with a data collector and can accurately measure the energy balance of the soil and the thermal conductivity of the soil layer. Background technique [0002] The traditional one-time soil heat flux sensor, because the body is made of rubber, is easily damaged by ants and mice. Because the internal electric heating pile adopts the winding method, and the output voltage at both ends of the single electric heating pile is not only inconvenient to manufacture, but also stable Poor performance affects the measurement accuracy. There is less confidence in studying the energy balance of soils and the thermal conductivity of soil layers. Contents of the invention [0003] The task of the present invention is to provide a soil heat flux sensor which is corrosion-resistant, insect-resistant, easy to manufacture and high in sens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/18G01W1/00
Inventor 白素莲李成才陈志娟
Owner 北京华创维想科技开发有限责任公司
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