Leakage measurement method and apparatus using the same

Details Leakage measurement method and apparatus using the same Leakage measurement method and apparatus using the same

1996-12-19

1998-11-10

Brock, Michael

Measuring and testing

With fluid pressure

Leakage

73269, G01M 326

Patent

active

058346317

ABSTRACT:
According to the present invention, a leakage measurement apparatus includes a volume metering device having a diaphragm which is displaced in accordance with a change in volume of the measurement medium leaked from an object and transmitted to the diaphragm. The volume of the leakage is calculated based on the change of the displaced amount of the diaphragm. In this way, the amount of leakage can be measured directly from the change in volume of the measurement medium. Further, the volume of the leakage can be measured without being affected by a change in pressure, and the accuracy of measurement can be improved.

REFERENCES:
patent: 3245256 (1966-04-01), Hayward
patent: 4012945 (1977-03-01), Bergstrand
patent: 4283945 (1981-08-01), Knoll
patent: 4488429 (1984-12-01), Ito
patent: 4542643 (1985-09-01), Himmelstein
patent: 5212979 (1993-05-01), Albrodt et al.

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