Test leakage device
In a test leakage device ( 10 ) for testing the functionality and for calibrating a gas leak detection device having an evacuable test chamber ( 34 ) for receiving a test object and the test leakage device ( 10 ), wherein the test leakage device ( 10 ) has a base ( 12 ), a cover ( 16 ) and at least one side wall ( 14 ) connecting the base ( 12 ) to the cover ( 16 ), which surround an interior space ( 20 ) which can be filled with a test gas or a test liquid, provision is made for the base ( 12 ) to have a membrane ( 24 ) which is permeable to the test gas or constituents of the test liquid, and for mutually opposite sections of that inner side ( 18 ) of the side wall ( 14 ) which faces the interior space ( 20 ) to be at a greater distance from one another in the region of the cover than in the region of the base.
1 . A test leakage device for testing the functionality and for calibrating a gas leak detection device which comprises an evacuable test chamber for receiving the test leakage device, wherein the test leakage device comprises a base, a cover and at least one side wall connecting the base to the cover, wherein the base, the cover and the at least one side wall surround an interior space which can be filled with a test gas or a test liquid,
wherein
the base has a membrane which is permeable to the test gas or constituents of the test liquid, and
mutually opposite sections of the inner side of the side wall which faces the interior space are at a greater distance from one another in the region of the cover than in the region of the base, wherein the distance of the mutually opposite sections of the inner side of the side wall facing the interior space decreases continuously from the cover to the base.
2 . The test leakage device according to claim 1 , wherein the inner side of the side wall cylindrically surrounds the interior space and conically tapers towards the membrane.
3 . The test leakage device according to claim 1 , wherein, in the region of the base, the inner side of the side wall adjoins a through opening comprising the membrane.
4 . The test leakage device according to claim 3 , wherein the through opening is formed in a cylindrical shape and has a circular surface facing the interior, the outer edge of which adjoins the inner side of the side wall.
5 . The test leakage device according to claim 1 , wherein the lower side of the base facing away from the interior space is provided with at least one spacer that prevents the lower side of the base from contacting the bottom of the test chamber, when the test leakage device is contained in the test chamber.
6 . The test leakage device according to claim 1 , wherein the test leakage device has a filling opening closed with a valve.
7 . The test leakage device according to claim 1 , wherein the base and the side wall are formed as an integral part and the inner side is formed as a recess in the integral part.
8 . A test leakage device for testing the functionality and for calibrating a gas leak detection device which comprises an evacuable test chamber for receiving the test leakage device, wherein the test leakage device has a base, a cover and at least one side wall connecting the base to the cover, wherein the base, the cover and the at least one side wall surround an interior space which can be filled with a test gas or a test liquid,
wherein
the base has a membrane which is permeable to the test gas or constituents of the test liquid, and
the base has a recess with an inner side facing the interior space, wherein mutually opposite sections of the inner side are at a greater distance from one another in the region of the cover than in the region of the base, wherein the distance of the mutually opposite sections of the inner side of the side wall facing the interior space decreases continuously from the cover to the base.
9 . The test leakage device according to claim 8 , wherein the distance of the mutually opposite sections of the inner side of the side wall facing the interior space decreases continuously from the cover to the base.
10 . The test leakage device according to claim 8 , wherein the inner side of the side wall cylindrically surrounds the interior space and conically tapers towards the membrane.
11 . The test leakage device according to claim 8 , wherein, in the region of the base, the inner side of the side wall adjoins a through opening comprising the membrane.
12 . The test leakage device according to claim 11 , wherein the through opening is formed in a cylindrical shape and has a circular surface facing the interior, the outer edge of which adjoins the inner side of the side wall.
13 . The test leakage device according to claim 8 , wherein the lower side of the base facing away from the interior space is provided with at least one spacer that prevents the lower side of the base from contacting the bottom of the test chamber, when the test leakage device is contained in the test chamber.
14 . The test leakage device according to claim 8 , wherein the test leakage device has a filling opening closed with a valve.
15 . The test leakage device according to claim 8 , wherein the base and the side wall are formed as an integral part and the inner side is formed as a recess in the integral part.