(19)
(11) EP 1 287 309 A1

(12)

(43) Date of publication:
05.03.2003 Bulletin 2003/10

(21) Application number: 00938186.4

(22) Date of filing: 06.06.2000
(51) International Patent Classification (IPC)7G01B 7/06, G01K 1/02, G01N 17/00, G01N 27/20
(86) International application number:
PCT/US0015/580
(87) International publication number:
WO 0109/4876 (13.12.2001 Gazette 2001/50)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(71) Applicant: ALSTOM POWER INC.
Windsor, Connecticut 06095 (US)

(72) Inventors:
  • GOODSTINE, Stephen, L.
    Windsor, CT 06095 (US)
  • SIMON, Jonathan, S.
    Pleasant Valley, CT 06063 (US)

(74) Representative: Hellwig, Tillmann, Dr. 
Dreiss, Fuhlendorf, Steimle & BeckerPatentanwälte,Postfach 103762
70032 Stuttgart
70032 Stuttgart (DE)

   


(54) MONITORING OF FOULING OR OF LOSS OF MATERIAL OF HEAT TRANSFER TUBES IN A COMBUSTION VESSEL BY RESISTANCE MEASUREMENTS