CPC G01M 3/229 (2013.01) [G01M 3/205 (2013.01); G01M 3/207 (2013.01); G01M 3/224 (2013.01); G01M 3/3272 (2013.01)] | 12 Claims |
1. A method for detecting a leakage in a hollow component wherein said hollow component comprises a compartment A and a compartment B adjacent to said compartment A, the method comprising the steps of:
sealing said hollow component;
pressurizing, at a pressure P1, a tracer gas within one of said compartment A or said adjacent compartment B after having sealed same;
pressurizing, at a pressure P2, pressure P2 having a lower pressure value than pressure P1, a different gas within the other of said compartment A or said adjacent compartment B;
injecting a tracer gas into an injection chamber formed by one of the compartment A or compartment B, the other of the compartment A or compartment B including the different gas than the tracer gas;
following a waiting of an accumulation time T, sampling at least part of the contents of one of said compartment A or compartment B into which the tracer gas was not injected;
concentrating in a concentration chamber the sampling in order to concentrate, in a downstream sample volume, the tracer gas potentially contained in one of the compartment A or compartment B into which the tracer gas was not injected; and
searching for the presence of the tracer gas in said sample volume.
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