System and method for online inspection of turbines using an optical tube with broadspectrum mirrors

Title: System and method for online inspection of turbines using an optical tube with broadspectrum mirrors

Full Record
Similar

An optical inspection system for nondestructive internal visual inspection and non-contact infra-red (IR) temperature monitoring of an online, operating power generation turbine. The optical inspection system includes an optical tube having a viewing port, at least one reflective mirror or a mirror array having a reflectivity spectral range from 550 nm to 20 .mu.m, and capable of continuous operation at temperatures greater than 932 degrees Fahrenheit (500 degrees Celsius), and a transparent window with high transmission within the same spectral range mounted distal the viewing port. The same optical mirror array may be used to measure selectively surface temperature of metal turbine blades in the near IR range (approximately 1 .mu.m wavelength) and of thermal barrier coated turbine blades in the long IR range (approximately 10 .mu.m wavelength).

Inventors:: Baleine, Erwan

Issue Date:: 2015-12-22

OSTI Identifier:: 1233349

Assignee:: Siemens Energy, Inc. NETL

Patent Number(s):: 9,217,852

Application Number:: 13/597,919

Contract Number:: FC26-05NT42644

Resource Relation:: Patent File Date: 2012 Aug 29

Research Org:: Siemens Energy, Inc., Orlando, FL (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Full Text
View Full Text

Similar records in DOepatents and OSTI.GOV collections:

System and method for chromatography and electrophoresis using circular optical scanning

Patent Balch, Joseph W. ; Brewer, Laurence R. ; Davidson, James C. ; Kimbrough, Joseph R.

A system and method is disclosed for chromatography and electrophoresis using circular optical scanning. One or more rectangular microchannel plates or radial microchannel plates has a set of analysis channels for insertion of molecular samples. One or more scanning devices repeatedly pass over the analysis channels in one direction at a predetermined rotational velocity and with a predetermined rotational radius. The rotational radius may be dynamically varied so as to monitor the molecular sample at various positions along a analysis channel. Sample loading robots may also be used to input molecular samples into the analysis channels. Radial microchannel plates aremore »« less
Full Text Available January 2001
Method and system for processing optical elements using magnetorheological finishing

Patent Menapace, Joseph Arthur ; Schaffers, Kathleen Irene ; Bayramian, Andrew James ; Molander, William A

A method of finishing an optical element includes mounting the optical element in an optical mount having a plurality of fiducials overlapping with the optical element and obtaining a first metrology map for the optical element and the plurality of fiducials. The method also includes obtaining a second metrology map for the optical element without the plurality of fiducials, forming a difference map between the first metrology map and the second metrology map, and aligning the first metrology map and the second metrology map. The method further includes placing mathematical fiducials onto the second metrology map using the difference mapmore »« less
Full Text Available September 2012
Compact neutron imaging system using axisymmetric mirrors

Patent Khaykovich, Boris ; Moncton, David E ; Gubarev, Mikhail V ; Ramsey, Brian D ; Engelhaupt, Darell E

A dispersed release of neutrons is generated from a source. A portion of this dispersed neutron release is reflected by surfaces of a plurality of nested, axisymmetric mirrors in at least an inner mirror layer and an outer mirror layer, wherein the neutrons reflected by the inner mirror layer are incident on at least one mirror surface of the inner mirror layer N times, wherein N is an integer, and wherein neutrons reflected by the outer mirror are incident on a plurality of mirror surfaces of the outer layer N+i times, where i is a positive integer, to redirect themore »« less
Full Text Available May 2014
Method and system to facilitate sealing in gas turbines

Patent Morgan, Victor John ; Foster, Gregory Thomas ; Sarawate, Neelesh Nandkumar

A method and system for sealing between components within a gas turbine is provided. A first recess defined in a first component receives a seal member. A second recess defined in a second component adjacent the first component also receives the seal member. The first and second recesses are located proximate a hot gas path defined through the gas turbine, and define circumferential paths about the turbine axis. The seal member includes a sealing face that extends in a direction substantially parallel to the turbine axis. The seal member also includes a plurality of seal layers, wherein at least onemore »« less
Full Text Available September 2017
Small diameter, deep bore optical inspection system

Patent Lord, David E. ; Petrini, Richard R. ; Carter, Gary W.

An improved rod optic system for inspecting small diameter, deep bores. The system consists of a rod optic system utilizing a curved mirror at the end of the rod lens such that the optical path through the system is bent 90.degree. to minimize optical distortion in examining the sides of a curved bore. The system is particularly useful in the examination of small bores for corrosion, and is capable of examining 1/16 inch diameter and up to 4 inch deep drill holes, for example. The positioning of the curved mirror allows simultaneous viewing from shallow and right angle points ofmore »« less
Full Text Available January 1981