A thermal pressure sensor

A pressure sensor and thermal sensor technology, applied in the field of sensors, can solve the problems of high sensitivity and upper limit of the use range, limited work of squeezing air, and small deformation, etc., to achieve the effect of expanding the scope of application

Active Publication Date: 2020-09-11
蚌埠市勇创机械电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the elastic member is under pressure, it is limited by the volume of the pressure sensor, the deformation is small, the work done by the squeezed air is limited, and the temperature change of the thermal resistance environment is small. High upper limit

Method used

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Embodiment Construction

[0018] Reference figure 1 , figure 2 , A thermal pressure sensor proposed by the present invention includes: a base 1, a thermal conductor 2, an elastic cover 3 and a friction column 4.

[0019] The base 1 is provided with a heat-resistant cavity 5 with an open top, and the thermal conductor 2 is installed on the base 1 and is located in the heat-resistant cavity 5. The elastic cover 3 is installed on the base 1 and covers the opening of the heat-resisting cavity 5. By matching the elastic cover 3 and the base 1, the heat-resisting cavity 5 forms a sealed cavity to delay the heat loss in the heat-resisting cavity 5 . In this embodiment, the inner wall of the heat resistance cavity 5 is coated with a heat insulation layer to further improve the heat retention ability of the heat resistance cavity 5.

[0020] The friction column 4 is installed on the elastic cover 3 and inserted into the heat-resistant cavity 5. The thermal conductor 2 abuts against the side wall of the friction ...

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PUM

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Abstract

The invention discloses a thermal pressure sensor. When a springing cover is pressed, the springing cover is recessed into a heat resisting cavity, a friction column is pushed to move relative to a heat conductor, so that friction and acting are performed to generate heat, the temperature of the heat conductor is increased, the temperature of a heat resistance wire is increased along with temperature rise of the heat conductor, and resistance values are changed. The resistance variable of the heat resistance wire can be measured on the outer side of a base by a first electrode and a second electrode, so that deformation of the springing cover is calculated, and the stressed value of the springing cover is acquired.

Description

Technical field [0001] The invention relates to the technical field of sensors, in particular to a thermal pressure sensor. Background technique [0002] The existing thermal resistance pressure sensor measures and calculates the pressure value through the influence of the heat generated by the work of squeezing the air when the elastic member moves on the thermal resistance. When the elastic part is compressed, it is limited by the volume of the pressure sensor, the deformation is small, the work of squeezing the air is limited, and the temperature change of the thermal resistance environment is small. Therefore, the existing thermal resistance pressure sensor is in the precision and application range. The upper limit is large. Summary of the invention [0003] Based on the technical problems existing in the background art, the present invention proposes a thermal pressure sensor. [0004] A thermal pressure sensor proposed by the present invention includes: a base, a thermal con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/22
CPCG01L1/2287
Inventor 马勇
Owner 蚌埠市勇创机械电子有限公司
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