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Thermal pressure sensor

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

Active Publication Date: 2018-04-03
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] refer to figure 1 , figure 2 , a heat-sensitive pressure sensor proposed by the present invention includes: a base 1 , a heat conductor 2 , a spring cover 3 and a friction column 4 .

[0019] The base 1 is provided with a heat-resistant chamber 5 with an open top, and the thermal conductor 2 is installed on the base 1 and located in the heat-resistant chamber 5 . The spring cover 3 is installed on the base 1 and covers the opening of the heat-resisting cavity 5. By cooperating with the base 1 by the spring cover 3, the heat-resisting cavity 5 forms a sealed cavity so as to delay the heat loss in the heat-resisting cavity 5 . In this embodiment, the inner wall of the heat-resistant chamber 5 is coated with a heat-insulating layer to further improve the ability of the heat-resistant chamber 5 to retain heat.

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

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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 heat-sensitive pressure sensor. Background technique [0002] The existing thermal resistance pressure sensor measures and calculates the estimated pressure value through the influence of the heat generated by extruding air to do work on the thermal resistance when the elastic member moves. 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. The upper limit is large. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a thermal-sensitive pressure sensor. [0004] A heat-sensitive pressure sensor proposed by the present invention includes: a base, a heat conductor, a spring cover and a friction column; ...

Claims

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Application Information

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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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