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Method and instrument for carrying out leakage test for closed container

A technology for sealing containers and containers, which is used in the use of liquid/vacuum for liquid tightness measurement, by measuring the acceleration and deceleration rate of the fluid, and by detecting the dimensional change of the measured structural component to test the fluid tightness, etc.

Inactive Publication Date: 2008-02-20
马丁·莱曼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the precision of this technical method is very high, it is necessary to be very careful to achieve this high precision.

Method used

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  • Method and instrument for carrying out leakage test for closed container
  • Method and instrument for carrying out leakage test for closed container
  • Method and instrument for carrying out leakage test for closed container

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Embodiment Construction

[0044] Figure 1 schematically illustrates the principle according to the invention. In the container 1 subjected to the leak test, a certain area of ​​the wall 3 is flexible. The principle of the present invention is that when the container 1 is subjected to a leak test, the biasing member 5 is moved to the wall of the container 1 by the driving device 7, and then the force detector 9 is used to monitor the reaction force F and generate an electrical signal according to the force F f el . As shown in Figure 2, in a preferred mode, the force detector 9 is directly connected to the bias member 5, and the force detector 9 and the bias member 5 are driven to move to the flexible region 3 relative to the wall of the container 1, wherein The container 1 is placed, for example, on a base plate 11 .

[0045] In another preferred embodiment as shown in FIG. 3, it is used to make one of the biasing member 5 and the force detector 9 or the force detector and the biasing member assembl...

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PUM

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Abstract

The utility model provides a method and instrument that conducts leakage test for closed vessels with at least one flexible wall region. The utility model is characterized in that a bias voltage piece is moved to the flexible wall region to exert preset pressure, and the counterforce is monitored as time goes on.

Description

[0001] This application is a divisional application of the international application date of September 26, 2000, the Chinese application number 00819910.8, and the international application number PCT / CH00 / 00526. technical field [0002] The present invention relates to a method for leak testing closed containers having at least one flexible wall region and to a leak test apparatus for leak testing closed containers having such a flexible wall region, regardless of whether such containers loaded with product. Background technique [0003] A known technical method for testing closed containers is to place the container to be tested in the test chamber, then seal the test chamber, then evacuate the surrounding space of the test container inside the test chamber, and after the vacuum reaches a predetermined level , to evaluate the change in pressure over time in the space surrounding the container. Although the precision of this technical method is high, great care must be tak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/32G01M3/36
Inventor 马丁·莱曼
Owner 马丁·莱曼