G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/84 (2006.01) G01M 3/22 (2006.01)
Patent
CA 2046556
ABSTRACT A leak detecting method for vessels in which a gas of a given pressure is mixed with sulfur hexafluoride of a given partial pressure and the mixture is introduced into a vessel, and a gas in the vicinity of an outer peripheral surface of the vessel is sucked by a gas sucking mechanism. According to one form of the invention, the sucked air is introduced into an absorption cell and a P(16)- line laser light of a carbon dioxide gas laser is introduced into the absorption cell. Then, the presence or absence of absorption of the P(16)-line laser light within the absorption cell is detected in accordance with a change in the transmitted light intensity of the ?eak in the pressure vessel is discriminated in accordance with a result of the detection. In accordance with another form of the invention the sucked air is introduced into a multiple reflection absorption cell and a P(16)-line laser light of a carbon dioxide gas laser and a reference light slightly different in wavelength from the P(16)-line laser light are introduced into the multiple reflection absorption cell. Then, the presence or absence of absorption of the P(16)- line laser light within the multiple reflection absorption cell is detected in accordance with a change in a light intensity ratio between the reflected lights of the P(16)-line laser light and the reference light, and the presence or absence of a leak in the pressure vessel is discriminated in accordance with a result of the detection.
Asai Kazuhiro
Ishihara Koji
Morimoto Shigeru
Omori Hiroshi
Asai Kazuhiro
Daikin Industries Ltd.
Macrae & Co.
Nkk Corporation
LandOfFree
Leak detecting method for vessels does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Leak detecting method for vessels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leak detecting method for vessels will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1966433