| 摘要 |
The invention relates to a method and an apparatus for checking leakages in a closed container having at least one flexible wall. According to the method, in a first operation a container (1) is disposed with one of its edge surfaces or sides (6) engaging against a printed circuit board (5), which has at least two conductors (7, 8) in closely spaced relationship facing towards the container (1), a first excess pressure being generated in it for a given time interval, subsequent to which it is turned over or twisted round in a second operation, and a second excess pressure is generated in it, thus achieving, in the case of a leaking container, that the contents in the portion of the container (1) covered by the contents are pressed outwards, and in contact with the printed circuit board result in that decreased resistance can be indicated in the circuit formed by the conductors on the printed circuit board, thus indicating leakage. The inventive apparatus includes a printed circuit board (5), against which a container (1) to be tested may be placed, and which is provided with at least two conductors (7, 8), a means (12) coacting with the printed circuit board for generating an excess pressure, and at least one indicating means (11) for determining change in resistance in the conductors (7, 8) extending on the printed circuit board (5). |
