(19)
(11) EP 0 262 138 A1

(12)

(43) Date of publication:
06.04.1988 Bulletin 1988/14

(21) Application number: 86903690.0

(22) Date of filing: 06.06.1986
(51) International Patent Classification (IPC): 
G01N 15/ 06( . )
G01N 21/ 21( . )
G01N 21/ 85( . )
G01N 33/ 34( . )
G01N 21/ 35( . )
(86) International application number:
PCT/SE1986/000270
(87) International publication number:
WO 1986/007458 (18.12.1986 Gazette 1986/27)
(84) Designated Contracting States:
AT DE FR GB SE

(30) Priority: 10.06.1985 SE 19850002855
26.02.1986 SE 19860000859

(71) Applicant: CHEMTRONICS AB
S-445 01 Surte (SE)

(72) Inventor:
  • STEIN, Wilfried
    S-417 13 Göteborg (SE)

(74) Representative: Berglund, Gustav Arthur, et al 
AWAPATENT AB, Box 5117
S-200 71 Malmö
S-200 71 Malmö (SE)

   


(54) METHOD FOR MEASURING THE FIBRE AND FILLER CONCENTRATION IN THE WET END OF A PAPER MACHINE AND A CONTROL SYSTEM USING THE METHOD