IT1258962B - Sistema di prova per palette di turbina - Google Patents
Sistema di prova per palette di turbinaInfo
- Publication number
- IT1258962B IT1258962B ITMI921420A ITMI921420A IT1258962B IT 1258962 B IT1258962 B IT 1258962B IT MI921420 A ITMI921420 A IT MI921420A IT MI921420 A ITMI921420 A IT MI921420A IT 1258962 B IT1258962 B IT 1258962B
- Authority
- IT
- Italy
- Prior art keywords
- turbine blades
- vanes
- test system
- response
- eddy current
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/904—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents with two or more sensors
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
La presente invenzione si riferisce ad un metodo e ad una apparecchiatura per eseguire una non distruttiva su materiale di palette di turbina a combustione in servizio. Secondo l'invenzione la prova viene eseguita inserendo sonde a correnti parassite (EC) nei fori di raffreddamento delle palette e valutando la risposta alle correnti parassite delle paletta. Le sonde a correnti parassite sono preferibilmente accoppiate insieme in un modo differenziale. La risposta misurata viene quindi confrontata con una risposta determinata precedentemente corrispondente ad una condizione di materiale nota. Una valutazione della paletta viene eseguita sulla base di tale confronto.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/720,038 US5140264A (en) | 1991-06-24 | 1991-06-24 | Method for non-destructively assessing the condition of a turbine blade using eddy current probes inserted within cooling holes |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI921420A0 ITMI921420A0 (it) | 1992-06-09 |
ITMI921420A1 ITMI921420A1 (it) | 1993-12-10 |
IT1258962B true IT1258962B (it) | 1996-03-11 |
Family
ID=24892398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI921420A IT1258962B (it) | 1991-06-24 | 1992-06-10 | Sistema di prova per palette di turbina |
Country Status (3)
Country | Link |
---|---|
US (1) | US5140264A (it) |
CA (1) | CA2072029A1 (it) |
IT (1) | IT1258962B (it) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5371462A (en) * | 1993-03-19 | 1994-12-06 | General Electric Company | Eddy current inspection method employing a probe array with test and reference data acquisition and signal processing |
US5670879A (en) * | 1993-12-13 | 1997-09-23 | Westinghouse Electric Corporation | Nondestructive inspection device and method for monitoring defects inside a turbine engine |
DE4342602A1 (de) * | 1993-12-14 | 1995-06-22 | Busch Dieter & Co Prueftech | Elektronisches Bauelement, inbesondere Spuleneinheit |
US5442285A (en) * | 1994-02-28 | 1995-08-15 | Westinghouse Electric Corporation | NDE eddy current sensor for very high scan rate applications in an operating combustion turbine |
DE4410987A1 (de) * | 1994-03-30 | 1995-10-05 | Foerster Inst Dr Friedrich | Hochauflösende Wirbelstromsonde |
US5659248A (en) * | 1994-10-17 | 1997-08-19 | General Electric Company | Multilayer eddy current probe array for complete coverage of an inspection surface without mechanical scanning |
US5617025A (en) * | 1994-10-19 | 1997-04-01 | Syron Engineering & Manufacturing Corporation | Side part sensor for determining the presence or absence of a nut and a hole disposed adjacent the nut |
US5602474A (en) * | 1995-06-06 | 1997-02-11 | United Technologies Corporation | Detecting cracks in non-uniform areas of metal parts including position correlation |
US5811970A (en) * | 1996-05-10 | 1998-09-22 | Northrop Grumman Corporation | Electromagnetic test for microstructure anomalies such as alpha-case, and for carbide precipitates and untempered and overtempered martensite |
US5821747A (en) * | 1997-01-08 | 1998-10-13 | Queen's University At Kingston | Method and apparatus for scanning a plurality of parallel pipes for flaws using tube-to-tube through transmissions |
US5744952A (en) * | 1997-02-25 | 1998-04-28 | Mcdermott Technology, Inc. | Eddy current measurement of tube element spacing |
ES2191504B1 (es) * | 1999-12-28 | 2005-02-16 | Universidad De Oviedo. | Combustor experimental para el ensayo de materiales de alabes de turbinas de gas. |
FR2811076B1 (fr) * | 2000-06-29 | 2002-09-20 | Snecma Moteurs | Procede de mesure d'epaisseur de paroi d'une aube creuse |
US7023205B1 (en) | 2000-08-01 | 2006-04-04 | General Dynamics Advanced Information Systems, Inc. | Eddy current sensor capable of sensing through a conductive barrier |
US6487922B1 (en) | 2000-09-25 | 2002-12-03 | Siemens Westinghouse Power Corporation | Steam turbine inlet sleeve inspection apparatus and method |
US6619109B1 (en) | 2000-09-25 | 2003-09-16 | Siemens Westinghouse Power Corporation | Steam turbine inlet bell seal inspection apparatus and method |
US6707297B2 (en) * | 2002-04-15 | 2004-03-16 | General Electric Company | Method for in-situ eddy current inspection of coated components in turbine engines |
EP1394360A1 (de) * | 2002-08-23 | 2004-03-03 | Siemens Aktiengesellschaft | Verfahren zur zerstörungsfreien Prüfung eines Bauteils sowie zur Herstellung einer Gasturbinenschaufel |
DE10335657B4 (de) * | 2003-08-04 | 2015-04-30 | Alstom Technology Ltd. | Parametrische Herstellung von Kühlbohrungen |
US6943570B2 (en) * | 2003-09-26 | 2005-09-13 | Honeywell International, Inc. | Device for detecting a crack on a turbine blade of an aircraft engine |
JP4062232B2 (ja) * | 2003-10-20 | 2008-03-19 | 株式会社日立製作所 | X線ct装置及びx線ct装置による撮像方法 |
US7026811B2 (en) * | 2004-03-19 | 2006-04-11 | General Electric Company | Methods and apparatus for eddy current inspection of metallic posts |
US11680867B2 (en) | 2004-06-14 | 2023-06-20 | Wanda Papadimitriou | Stress engineering assessment of risers and riser strings |
US11710489B2 (en) | 2004-06-14 | 2023-07-25 | Wanda Papadimitriou | Autonomous material evaluation system and method |
US7075296B2 (en) * | 2004-11-09 | 2006-07-11 | Siemens Power Generation, Inc. | Inspection carriage for turbine blades |
US7323868B2 (en) | 2005-09-21 | 2008-01-29 | General Dynamics Advanced Information Systems, Inc. | System and method for temperature independent measurement of standoff distance using an eddy current sensor |
US7162384B1 (en) | 2005-09-21 | 2007-01-09 | General Dynamics Advanced Information | System and method for temperature compensation of eddy current sensor waveform parameters |
US8486545B2 (en) * | 2005-09-28 | 2013-07-16 | Southwest Research Institute | Systems and methods for flaw detection and monitoring at elevated temperatures with wireless communication using surface embedded, monolithically integrated, thin-film, magnetically actuated sensors, and methods for fabricating the sensors |
JP2008089328A (ja) | 2006-09-29 | 2008-04-17 | Hitachi Ltd | 渦電流探傷装置及び渦電流探傷方法 |
US9551689B2 (en) * | 2010-02-26 | 2017-01-24 | United Technologies Corporation | Inspection device utilizing eddy currents |
US11156585B2 (en) * | 2019-02-08 | 2021-10-26 | Raytheon Technologies Corporation | Method of nondestructive turbine airfoil inspection and repair |
US11378511B2 (en) * | 2019-11-21 | 2022-07-05 | Applied Materials, Inc. | Methods and apparatus for detecting corrosion of conductive objects |
CN113466332B (zh) * | 2021-07-02 | 2023-02-28 | 西安交通大学 | 针对叶片气膜孔边裂纹检测的柔性阵列涡流探头及方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3407352A (en) * | 1965-06-07 | 1968-10-22 | Western Electric Co | Method of and apparatus for monitoring the thickness of a non-conductive coating on a conductive base |
FR2305809A1 (fr) * | 1975-03-25 | 1976-10-22 | Crouzet Sa | Dispositif d'authentification de titres monetaires |
US4095181A (en) * | 1976-12-17 | 1978-06-13 | The Boeing Company | Rotating pot shaped eddy current probe in which only a small fraction of the lip forming the outer core portion is retained |
CH625619A5 (it) * | 1977-12-07 | 1981-09-30 | Bbc Brown Boveri & Cie | |
US4194149A (en) * | 1977-12-15 | 1980-03-18 | The Babcock & Wilcox Company | Method for generating the eddy current signature of a flaw in a tube proximate a contiguous member which obscures the flaw signal |
JPS55141653A (en) * | 1979-04-20 | 1980-11-05 | Mitsubishi Heavy Ind Ltd | Deterioration state deciding method of strong precipitation hardness type iron base alloy |
US4418315A (en) * | 1981-05-22 | 1983-11-29 | Combustion Engineering, Inc. | Method for effecting a surface examination of coated components |
US4578643A (en) * | 1983-11-18 | 1986-03-25 | Westinghouse Electric Corp. | Simulation apparatus for eddy current inspection techniques |
US4528856A (en) * | 1984-01-17 | 1985-07-16 | Westinghouse Electric Corp. | Eddy current stress-strain gauge |
US4746858A (en) * | 1987-01-12 | 1988-05-24 | Westinghouse Electric Corp. | Non destructive testing for creep damage of a ferromagnetic workpiece |
US5028100A (en) * | 1989-06-15 | 1991-07-02 | Trustees Of The Thomas A. D. Gross 1988 Revocable Trust | Methods for nondestructive eddy-current testing of structural members with automatic characterization of faults |
-
1991
- 1991-06-24 US US07/720,038 patent/US5140264A/en not_active Expired - Lifetime
-
1992
- 1992-06-10 IT ITMI921420A patent/IT1258962B/it active IP Right Grant
- 1992-06-23 CA CA002072029A patent/CA2072029A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US5140264A (en) | 1992-08-18 |
CA2072029A1 (en) | 1992-12-25 |
ITMI921420A0 (it) | 1992-06-09 |
ITMI921420A1 (it) | 1993-12-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950623 |