Arrangement and method for measuring a distance

Details Arrangement and method for measuring a distance Arrangement and method for measuring a distance

1998-04-21

2000-06-13

Fulton, Christopher W.

Geometrical instruments

Distance measuring

Machine parts

33613, G01B 2116, G01D 2100

Patent

active

060733586

ABSTRACT:
An arrangement and method for measuring a distance between rotating and stationary parts of a device, such as a turbine. The arrangement and method allow for the measurement of a distance between the tip of the rotating bodies arranged on a rotor of the turbine, and the inside of a casing that encloses the rotor. The arrangement and method provide for at least one abrasion-tolerant layer of a specified thickness arranged on the inside of the casing opposite the tip of the rotating body at a specified thickness. The at least one abrasion-tolerant layer includes at least one indicator that can be detected in the exhaust gas of the turbine, thereby providing indication of abrasion between the tip of the rotating body and the abrasion-tolerant layer.

REFERENCES:
patent: 4207564 (1980-06-01), Isakson et al.
patent: 4548105 (1985-10-01), Koutonen
patent: 4914829 (1990-04-01), Keaton
patent: 5171584 (1992-12-01), Ramsey et al.

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