Getnet S Kidane

US Patent:

20130266420, Oct 10, 2013

Filed:

Nov 29, 2012

Appl. No.:

13/688299

Inventors:

GETNET S. KIDANE - ORLANDO FL, US
UPUL P. DESILVA - OVIEDO FL, US
CHENGLI HE - ORLANDO FL, US
NANCY H. ULERICH - LONGWOOD FL, US

International Classification:

G01B 11/02
F01D 25/00

US Classification:

415118, 25022714

Abstract:

A gas turbine includes first and second parts having outer surfaces located adjacent to each other to create an interface where wear occurs. A wear probe is provided for monitoring wear of the outer surface of the first part, and includes an optical guide having first and second ends, wherein the first end is configured to be located flush with the outer surface of the first part. A fiber bundle includes first and second ends, the first end being located proximate to the second end of the optical guide. The fiber bundle includes a transmit fiber bundle comprising a first plurality of optical fibers coupled to a light source, and a receive fiber bundle coupled to a light detector and configured to detect reflected light. A processor is configured to determine a length of the optical guide based on the detected reflected light.