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

Baleine, Erwan

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

Abstract

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

Publication Date:: Tue Dec 22 00:00:00 EST 2015

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1233349

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

Application Number:: 13/597,919

Assignee:: Siemens Energy, Inc.

DOE Contract Number:: FC26-05NT42644

Resource Type:: Patent

Resource Relation:: Patent File Date: 2012 Aug 29

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

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                    Baleine, Erwan. System and method for online inspection of turbines using an optical tube with broadspectrum mirrors.  United States: N. p., 2015. 
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                    Baleine, Erwan. System and method for online inspection of turbines using an optical tube with broadspectrum mirrors.  United States.

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                    Baleine, Erwan. 2015.  
        "System and method for online inspection of turbines using an optical tube with broadspectrum mirrors".  United States.  https://www.osti.gov/servlets/purl/1233349.

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@article{osti_1233349,

  title        = {System and method for online inspection of turbines using an optical tube with broadspectrum mirrors},

  author       = {Baleine, Erwan},

  abstractNote = {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).},

  doi          = {},

  url          = {https://www.osti.gov/biblio/1233349},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Dec 22 00:00:00 EST 2015},

  month        = {Tue Dec 22 00:00:00 EST 2015}

}

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

Abstract

Citation Formats

Reflective elements and sensors including reflective elements patent, July 1984

Optically transparent electrically conductive semiconductor windows patent, July 1990

Reflecting mirror for a laser beam and laser beam welding apparatus, including the same laser beam reflecting mirror patent, March 1992

Apparatus for attaching and detaching accessory of lens patent, October 1995

Lens holding structure patent, September 1996

High temperature gas stream optical flame sensor patent, September 1997

Method for repairing a thermal barrier coating patent, March 1998

Simple system for endoscopic non-contact three-dimentional measurement patent, October 2002

System and method for online inspection of turbines including aspheric lens patent, November 2014

On the Preparation of Hard Oxide Films with Precisely Controlled Thickness on Evaporated Aluminum Mirrors* journal, January 1949

Reflective elements and sensors including reflective elements
patent, July 1984

Optically transparent electrically conductive semiconductor windows
patent, July 1990

Reflecting mirror for a laser beam and laser beam welding apparatus, including the same laser beam reflecting mirror
patent, March 1992

Apparatus for attaching and detaching accessory of lens
patent, October 1995

Lens holding structure
patent, September 1996

High temperature gas stream optical flame sensor
patent, September 1997

Method for repairing a thermal barrier coating
patent, March 1998

Simple system for endoscopic non-contact three-dimentional measurement
patent, October 2002

System and method for online inspection of turbines including aspheric lens
patent, November 2014

On the Preparation of Hard Oxide Films with Precisely Controlled Thickness on Evaporated Aluminum Mirrors*
journal, January 1949