Radial gap measurement on turbines

Details Radial gap measurement on turbines Radial gap measurement on turbines

2011-02-15

2011-02-15

Tarcza, Thomas H (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Determining distance

C342S104000, C342S109000, C342S114000, C073S112010

Reexamination Certificate

active

07889119

ABSTRACT:
Radial gap measurement on turbines by a microwave measuring method and an evaluation of a Doppler effect which varies according to the size of the radial gap is described. At least one radar sensor embodied as a transmission and reception unit is provided in the wall of a turbine housing which is radially oriented towards the centre of the turbine. The relative speed of an outer end of a turbine blade, dependent on the size of the radial gap, is evaluated many times in relation to the radar sensor during the passage of the blade end past the same, and the course of the relative speed over time on the zero crossing constitutes a measure for the radial gap on the basis of the relation between the absolute value of the relative speed and the incline thereof in the zero crossing.

REFERENCES:
patent: 3199103 (1965-08-01), Augustine
patent: 3544923 (1970-12-01), Williams
patent: 3551199 (1970-12-01), Forster
patent: 3553413 (1971-01-01), Soulier
patent: 4131889 (1978-12-01), Gray
patent: 4326804 (1982-04-01), Mossey
patent: 4384819 (1983-05-01), Baker
patent: 4384849 (1983-05-01), Marchetti
patent: 4413519 (1983-11-01), Bannister et al.
patent: 4507658 (1985-03-01), Keating
patent: 4644270 (1987-02-01), Oates et al.
patent: 4700127 (1987-10-01), Sasaki et al.
patent: 5479826 (1996-01-01), Twerdochlib et al.
patent: 5818242 (1998-10-01), Grzybowski et al.
patent: 6445995 (2002-09-01), Mollmann
patent: 6487491 (2002-11-01), Karpman et al.
patent: 6489917 (2002-12-01), Geisheimer et al.
patent: 6584849 (2003-07-01), Loftus et al.
patent: 6856281 (2005-02-01), Billington et al.
patent: 7083384 (2006-08-01), Bosselmann et al.
patent: 7095221 (2006-08-01), Bosselmann et al.
patent: 7246991 (2007-07-01), Bosche
patent: 7373823 (2008-05-01), Bosselmann et al.
patent: 7424823 (2008-09-01), Teolis et al.
patent: 7455495 (2008-11-01), Leogrande et al.
patent: 7483800 (2009-01-01), Geisheimer et al.
patent: 7486248 (2009-02-01), Halek et al.
patent: 2004/0057828 (2004-03-01), Bosche
patent: 2005/0024284 (2005-02-01), Halek et al.
patent: 2005/0088171 (2005-04-01), Gualtieri
patent: 2008/0255799 (2008-10-01), Pfeifer et al.
patent: 2009/0146897 (2009-06-01), Halek et al.
patent: 2010/0005870 (2010-01-01), Bachmaier et al.
patent: 3044242 (1981-09-01), None
patent: 101 19 669 (2002-10-01), None
patent: 0118079 (1984-09-01), None
patent: 1617174 (2006-01-01), None
patent: 2 065 410 (1981-06-01), None
patent: 2005014757 (2005-02-01), None
patent: WO 2006/005690 (2006-01-01), None

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