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Connection terminal for detecting vacuum degree

A technology of connecting terminals and vacuum degree, applied in the field of inspection and detection, can solve problems such as uncontrollable vibration, influence of thermal filaments, influence detection, etc., to achieve the effect of resisting external vibration, stable signal, and rapid response

Pending Publication Date: 2018-04-20
李涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing Pirani vacuum gauges use linear thermal filaments, and during the measurement process, there are often uncontrollable vibrations, which will affect the thermal filaments in the vacuum gauge and cause them to break, thus affecting the detection

Method used

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  • Connection terminal for detecting vacuum degree
  • Connection terminal for detecting vacuum degree

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0022] refer to figure 1 , figure 2 , a connection terminal for detecting vacuum degree, comprising a casing 1 installed on an object to be measured, and a second part that maintains the airtightness of the rear side of the casing 1 with the direction in which the casing 1 is installed on the object to be measured as the front A seal 11, the first seal 11 is pierced with a support terminal 2, the support terminal 2 is connected with a spiral filament 34, the front end of the support terminal 2 passes through the second seal 31, the first The second sealing member 31 is provided with a support member 3 for supporting the spiral filament 34, and the full-length part of the spiral ...

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Abstract

The invention relates to the technical field of inspection and detection, in particular to a connection terminal for detecting a vacuum degree. The connection terminal is characterized in that a support terminal penetrates a housing and a support element; and thus a helical filament and a first support structure make vibration synchronously during vibration, thereby preventing breaking of the helical filament. The filament has a spiral structure, so that vibration is prevented effectively and breaking is avoided; the contact area is increased, the overall length is reduced, and the cost is lowered.

Description

technical field [0001] The invention relates to the technical field of inspection and detection, in particular to a connection terminal for detecting vacuum degree. Background technique [0002] A vacuum gauge, also known as a vacuum gauge, is an instrument for measuring vacuum or air pressure. Generally, the air pressure is measured by using the change of a certain physical effect of the gas under different air pressures. The Pirani vacuum gauge is also called a resistance vacuum gauge. Its working principle is: the degree of vacuum is different, the number of air molecules per unit volume is different, and the ability of the heating resistance wire to take away heat (radiation capacity) is different. The resistance wire The temperature is different, because the resistivity of the resistance wire is a function of temperature, so different degrees of vacuum cause the difference in resistivity, the resistance is different, and the voltage drop of the current on the resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L21/12
CPCG01L21/12
Inventor 李涛
Owner 李涛
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