Measuring and testing – With fluid pressure – Leakage
Patent
1984-01-17
1986-04-08
Wyse, Thomas
Measuring and testing
With fluid pressure
Leakage
G01N 320
Patent
active
045804435
ABSTRACT:
A leak detector has a gas probe 1 for sensing signal gas escaping from an enclosure containing that gas at a pressure slightly in excess of ambient surrounded by a curtain of barrier gas. The reading of a gas analyzer such as a mass spectrometer depends on the height of the probe from the surface. A height sensor is attached to the leak detector and a programmable amplifier 6 contains information on the characteristic curve of the gas sensor. An output signal from the programmable amplifier compensates for the height of the probe from the surface being detected. The speed of the leak detector can be corrected for in the same way.
REFERENCES:
patent: 3645127 (1972-02-01), Mongodin et al.
patent: 4083231 (1978-04-01), Mennenga
patent: 4477986 (1984-10-01), Marshall et al.
Bray David J.
Marshall Peter E. G.
Piper Francis R.
Wilson John F.
BL Technology Limited
Greer, Jr. Thomas J.
Wyse Thomas
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