(19)
(11)
EP 0 419 469 A1
(12)
(43)
Date of publication:
03.04.1991
Bulletin 1991/14
(21)
Application number:
88909627.0
(22)
Date of filing:
20.10.1988
(51)
International Patent Classification (IPC):
G01F
1/
36
( . )
G01F
1/
46
( . )
(86)
International application number:
PCT/SE1988/000548
(87)
International publication number:
WO 1989/003977
(
05.05.1989
Gazette 1989/10)
(84)
Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE
(30)
Priority:
23.10.1987
SE 19870004134
(71)
Applicant:
Fläkt AB
S-104 81 Stockholm (SE)
(72)
Inventor:
JOHNSSON, Bertil
S-564 00 Bankeryd (SE)
(74)
Representative:
Siebmanns, Hubertus
Götalands Patentbyra AB Box 154
S-561 22 Huskvarna
S-561 22 Huskvarna (SE)
(54)
METHOD AND ARRANGEMENT FOR MEASURING GAS FLOW PARAMETERS