Browse Prior Art Database

Process for Leak-Searching at High-Vacuum-Tools

IP.com Disclosure Number: IPCOM000116557D
Original Publication Date: 1995-Oct-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 26K

Publishing Venue

IBM

Related People

Brohm, R: AUTHOR

Abstract

Disclosed is a method which depends on making temperature differences visible through an infrared-camera by a heat-picture. In the theory nitrogen (N2) may be regarded as the best qualified gas. The temperature difference between nitrogen and tool should be about 10ºC delta. The higher the temperature difference, the faster the leak diagnostic. The tool will than be brought with the gas in a small overpressure. By a possibly present leak there will be, by the treating out of the cooler gas, a considerable faster temperature equalization, that can be seen immediately by the infrared-camera by a heat-picture.

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Process for Leak-Searching at High-Vacuum-Tools

      Disclosed is a method which depends on making temperature
differences visible through an infrared-camera by a heat-picture.  In
the theory nitrogen (N2) may be regarded as the best qualified gas.
The temperature difference between nitrogen and tool should be about
10ºC delta.  The higher the temperature difference, the faster
the leak diagnostic.  The tool will than be brought with the gas in a
small overpressure.  By a possibly present leak there will be, by the
treating out of the cooler gas, a considerable faster temperature
equalization, that can be seen immediately by the infrared-camera by
a heat-picture.

      With the help of a suitable software the leak can be directly
located.  With this process the danger of possible material faults
and material attrition can be quickly recognized and removed.

      The advantages of this process are for the considerable
time-saving and the material-saving of test gases, which are usually
existing of noble gases.

This process is marked by its non-pollution and technical progress.