JP4553975B2 - マイクロ波センサーのためのピーク検出およびクラッター削減 - Google Patents
マイクロ波センサーのためのピーク検出およびクラッター削減 Download PDFInfo
- Publication number
- JP4553975B2 JP4553975B2 JP2009513292A JP2009513292A JP4553975B2 JP 4553975 B2 JP4553975 B2 JP 4553975B2 JP 2009513292 A JP2009513292 A JP 2009513292A JP 2009513292 A JP2009513292 A JP 2009513292A JP 4553975 B2 JP4553975 B2 JP 4553975B2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- antenna
- phase
- data
- microwave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/505—Systems of measurement based on relative movement of target using Doppler effect for determining closest range to a target or corresponding time, e.g. miss-distance indicator
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/415—Identification of targets based on measurements of movement associated with the target
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/20—Three-dimensional
Description
Claims (2)
- タービンエンジンの筐体内の回転しているブレードのブレード測定を完了する方法であって、
前記タービンエンジンの前記筐体内のアンテナを介してマイクロ波エネルギーを送信するステップと、
前記ブレード及び前記筐体によって反射された前記マイクロ波エネルギーに関連する同相及び直角位相データを収集するステップと、
前記同相及び直角位相データ上で複素高速フーリエ変換(FFT)を行って、正の周波数成分及び負の周波数成分を生成するステップと、
前記負の周波数成分から前記正の周波数成分を分離するステップと、
前記正の周波数成分及び前記負の周波数成分の各々の上で逆FFTを行って、接近及び後退速度成分に関連する複素時間ドメインデータを生成するステップと、
前記複素時間ドメインデータを、接近及び後退振幅値を含む振幅値並びに接近及び後退位相値を含む位相値に変換するステップと、
前記振幅値と所定の閾値との各交差を同定して、前記アンテナに最も近いブレードの一つの位置に関連するブレード領域を規定するステップと、
前記ブレード領域について、前記アンテナの直下のブレードの位置を表すゼロ点速度を前記接近位相値の一つが前記後退位相値の一つと等しい点として同定するステップと、
前記ゼロ点速度をインデックスとして使ってブレードデータを処理するステップと
を含む方法。 - 前記ブレードの他の一つについて上記のステップの各々を繰り返すことを更に含む、請求項1の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81010506P | 2006-06-01 | 2006-06-01 | |
PCT/US2007/012920 WO2008036136A2 (en) | 2006-06-01 | 2007-06-01 | Peak detection and clutter reduction for a microwave sensor |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2009539110A JP2009539110A (ja) | 2009-11-12 |
JP2009539110A5 JP2009539110A5 (ja) | 2010-07-01 |
JP4553975B2 true JP4553975B2 (ja) | 2010-09-29 |
Family
ID=39201022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009513292A Expired - Fee Related JP4553975B2 (ja) | 2006-06-01 | 2007-06-01 | マイクロ波センサーのためのピーク検出およびクラッター削減 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7483800B2 (ja) |
EP (1) | EP2024604B1 (ja) |
JP (1) | JP4553975B2 (ja) |
CA (1) | CA2654057C (ja) |
ES (1) | ES2394114T3 (ja) |
WO (1) | WO2008036136A2 (ja) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006033461A1 (de) * | 2006-07-19 | 2008-01-31 | Siemens Ag | Radialspaltmessung an Turbinen |
DE102010003347B4 (de) | 2009-05-20 | 2021-08-05 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Bestimmen einer oder mehrerer Drehzahlen einer Aufladeeinrichtung, insbesondere für einen Verbrennungsmotor |
US8854052B2 (en) | 2010-11-22 | 2014-10-07 | General Electric Company | Sensor assembly and method of measuring the proximity of a machine component to a sensor |
US8624603B2 (en) | 2010-11-22 | 2014-01-07 | General Electric Company | Sensor assembly and methods of adjusting the operation of a sensor |
US8531191B2 (en) | 2010-11-22 | 2013-09-10 | General Electric Company | Sensor assembly and methods of measuring a proximity of a machine component to a sensor |
US8593156B2 (en) | 2010-11-22 | 2013-11-26 | General Electric Company | Sensor assembly and microwave emitter for use in a sensor assembly |
US8482456B2 (en) | 2010-12-16 | 2013-07-09 | General Electric Company | Sensor assembly and method of measuring the proximity of a machine component to an emitter |
EP2689255B1 (en) * | 2011-03-23 | 2019-06-26 | Meggitt SA | Measurement of bladed rotors |
US8742319B2 (en) | 2011-12-13 | 2014-06-03 | General Electric Company | Sensor and inspection system deploying an optical conduit |
CN103808515B (zh) * | 2012-11-12 | 2016-08-03 | 中航商用航空发动机有限责任公司 | 叶片分离装置以及发动机包容性试验装置 |
US9677868B2 (en) | 2013-10-09 | 2017-06-13 | Hamilton Sundstrand Corporation | Tip clearance measurement system |
GB2528882A (en) | 2014-08-01 | 2016-02-10 | Bae Systems Plc | Turbine blade monitoring |
GB2528880A (en) * | 2014-08-01 | 2016-02-10 | Bae Systems Plc | Foreign object debris detection system and method |
GB2533626B (en) * | 2014-12-23 | 2019-07-24 | Thales Holdings Uk Plc | Wind turbine rejection in non-scanning radar |
DE102017109861A1 (de) | 2016-05-18 | 2017-11-23 | Infineon Technologies Ag | Verfahren und Vorrichtungen für Geschwindigkeits- und/oder Positionserfassung |
DE112018004882T5 (de) * | 2017-08-31 | 2020-06-10 | Murata Manufacturing Co., Ltd. | Herzschlagmessvorrichtung |
US10705198B2 (en) * | 2018-03-27 | 2020-07-07 | Infineon Technologies Ag | System and method of monitoring an air flow using a millimeter-wave radar sensor |
CN109141213B (zh) * | 2018-09-08 | 2020-04-10 | 天津大学 | 一种基于微波扫频的叶尖间隙测量方法 |
US11372097B2 (en) * | 2018-10-09 | 2022-06-28 | Metawave Corporation | Method and apparatus for phase unwrapping radar detections using optical flow |
CN111006873B (zh) * | 2019-12-05 | 2022-02-01 | 中国航发四川燃气涡轮研究院 | 叶尖间隙信号处理过程中的峰峰值获取方法和装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4346383A (en) * | 1979-08-04 | 1982-08-24 | Emi Limited | Checking the location of moving parts in a machine |
DE3044242A1 (de) * | 1979-12-11 | 1981-09-03 | Smiths Industries Ltd., London | Anzeigesystem zur anzeige des abstandes der blaetter einer turbine zu einem bezugspunkt |
GB2322986B (en) * | 1987-10-28 | 1998-12-16 | Licentia Gmbh | Method of type classification of a target |
JPH0494403A (ja) * | 1990-08-03 | 1992-03-26 | Electric Power Res Inst Inc | 動作中のタービンの共振ブレードの監視 |
US5479826A (en) * | 1994-06-17 | 1996-01-02 | Westinghouse Electric Corporation | Microwave system for monitoring turbine blade vibration |
US5818242A (en) * | 1996-05-08 | 1998-10-06 | United Technologies Corporation | Microwave recess distance and air-path clearance sensor |
FR2807834B1 (fr) * | 2000-04-13 | 2002-06-28 | Snecma Moteurs | Procede de mesure sans contact des vibrations d'un corps tournant |
US6489917B2 (en) * | 2000-11-30 | 2002-12-03 | Georgia Tech Research Corporation | Phase-based sensing system |
GB2374670B (en) * | 2001-04-17 | 2004-11-10 | Rolls Royce Plc | Analysing vibration of rotating blades |
US6717418B2 (en) * | 2001-11-16 | 2004-04-06 | General Electric Company | Method and apparatus for measuring turbine blade tip clearance |
EP1617174A1 (de) * | 2004-07-12 | 2006-01-18 | Siemens Aktiengesellschaft | Bestimmung des Spaltmasses eines Radialspaltes |
JP2007218634A (ja) * | 2006-02-14 | 2007-08-30 | Mitsubishi Electric Corp | レーダ装置 |
-
2007
- 2007-06-01 ES ES07852378T patent/ES2394114T3/es active Active
- 2007-06-01 WO PCT/US2007/012920 patent/WO2008036136A2/en active Application Filing
- 2007-06-01 EP EP07852378A patent/EP2024604B1/en active Active
- 2007-06-01 JP JP2009513292A patent/JP4553975B2/ja not_active Expired - Fee Related
- 2007-06-01 CA CA2654057A patent/CA2654057C/en not_active Expired - Fee Related
- 2007-06-01 US US11/809,499 patent/US7483800B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2024604B1 (en) | 2012-08-01 |
CA2654057C (en) | 2013-02-12 |
CA2654057A1 (en) | 2008-03-27 |
WO2008036136A2 (en) | 2008-03-27 |
JP2009539110A (ja) | 2009-11-12 |
US20080195338A1 (en) | 2008-08-14 |
ES2394114T3 (es) | 2013-01-21 |
EP2024604A2 (en) | 2009-02-18 |
WO2008036136A3 (en) | 2008-11-06 |
EP2024604A4 (en) | 2011-06-29 |
US7483800B2 (en) | 2009-01-27 |
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