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1. WO1999008086 - GAS ANALYSING APPARATUS

Publication Number WO/1999/008086
Publication Date 18.02.1999
International Application No. PCT/FR1998/001782
International Filing Date 10.08.1998
IPC
G01M 3/20 2006.1
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3Investigating fluid tightness of structures
02by using fluid or vacuum
04by detecting the presence of fluid at the leakage point
20using special tracer materials, e.g. dye, fluorescent material, radioactive material
G01N 33/00 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
CPC
G01M 3/207
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3Investigating fluid-tightness of structures
02by using fluid or vacuum
04by detecting the presence of fluid at the leakage point
20using special tracer materials, e.g. dye, fluorescent material, radioactive material
207calibration arrangements
G01N 33/0006
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
0004Gaseous mixtures, e.g. polluted air
0006Calibrating gas analysers
Applicants
  • ALCATEL [FR]/[FR] (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, JP, LU, MC, NL, PT, SE)
  • DEVANCE, Alain [FR]/[FR] (UsOnly)
Inventors
  • DEVANCE, Alain
Agents
  • LABADENS, Bruno
Priority Data
97/1025911.08.1997FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) GAS ANALYSING APPARATUS
(FR) ANALYSEUR DE GAZ
Abstract
(EN) The invention concerns a gas analysing apparatus (1) comprising a pumping unit (3, 4) and autocalibrating means (5 to 12), characterised in that it is connected to a reservoir (6) with a calibrated escape, filled with a mixture of n gases of separate volume whereof the partial escape flow of each through said calibrated escape is known.
(FR) Analyseur de gaz (1) comprenant un groupe de pompage (3, 4) et des moyens d'autocalibration (5 à 12), caractérisé en ce qu'il est relié à un réservoir (6) ayant une fuite calibrée, rempli d'un mélange de n gaz de masse distincte dont le flux de fuite partiel de chacun à travers ladite fuite calibrée est connu.
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