(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