ES2015155A6 - Aparato y metodo para detectar el paso de los alabes de una maquina rotativa por un detector fijo. - Google Patents
Aparato y metodo para detectar el paso de los alabes de una maquina rotativa por un detector fijo.Info
- Publication number
- ES2015155A6 ES2015155A6 ES8902047A ES8902047A ES2015155A6 ES 2015155 A6 ES2015155 A6 ES 2015155A6 ES 8902047 A ES8902047 A ES 8902047A ES 8902047 A ES8902047 A ES 8902047A ES 2015155 A6 ES2015155 A6 ES 2015155A6
- Authority
- ES
- Spain
- Prior art keywords
- sensor
- blade
- passing times
- input signal
- steam turbine
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
-
- 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
- F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
- G01H1/006—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines of the rotor of turbo machines
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Control Of Turbines (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
APARATO Y METODO PARA DETECTAR EL PASO DE LOS ALABES DE UNA MAQUINA ROTATIVA POR UN DETECTOR FIJO. EL APARATO PARA DETECTAR LOS INSTANTES DE PASO DE LOS ALABES INCLUYE UN DETECTOR PARA PRODUCIR UNA SEÑAL DE ENTRADA CADA VEZ QUE UN ALABE PASA POR EL DETECTOR. UN DETECTOR DE PASO POR CERO PRODUCE UNA SEÑAL DE SALIDA CADA VEZ QUE LA SEÑAL DE ENTRADA CRUZA UN EJE DE REFERENCIA. UN DESFASADOR DESPLAZA LA FASE DE LA SEÑAL DE ENTRADA PARA PRODUCIR UNA SEÑAL DE ACTIVACION COINCIDENTE CON EL INSTANTE DE LLEGADA PREVISTO DEL ALABE AL DETECTOR. UN DISPOSITIVO DE PUERTA ELECTRONICA ES SENSIBLE A LA SEÑAL DE ACTIVACION PARA CONDUCIR LAS SEÑALES DE SALIDA QUE SE PRODUCEN DURANTE EL INSTANTE DE LLEGADA PREVISTO DEL ALABE AL DETECTOR.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/205,770 US4922757A (en) | 1988-06-13 | 1988-06-13 | Apparatus for precise detection of blade passing times in a steam turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2015155A6 true ES2015155A6 (es) | 1990-08-01 |
Family
ID=22763579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8902047A Expired - Lifetime ES2015155A6 (es) | 1988-06-13 | 1989-06-12 | Aparato y metodo para detectar el paso de los alabes de una maquina rotativa por un detector fijo. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4922757A (es) |
JP (1) | JPH02103423A (es) |
KR (1) | KR900000690A (es) |
CN (1) | CN1018862B (es) |
ES (1) | ES2015155A6 (es) |
IT (1) | IT1232809B (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2038918A2 (es) * | 1990-11-01 | 1993-08-01 | Westinghouse Electric Corp | Aparato y metodo para separar los datos de vibracion de modo comun de los datos digitales de las vibraciones de los alabes de una turbina. |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1223867B (it) * | 1988-10-25 | 1990-09-29 | Marelli Autronica | Circuito per il trattamento del segnale generato da un sensore elettromagnetico di rotazione del tipo a riluttanza variabile |
US5015949A (en) * | 1988-12-22 | 1991-05-14 | Westinghouse Electric Corp. | Steam turbine blade arrival time processor with automatic gain control |
US5153513A (en) * | 1990-05-25 | 1992-10-06 | Zexel Corporation | Apparatus for processing output signal of sensor with magnetic rotary member |
US5121061A (en) * | 1990-08-16 | 1992-06-09 | Milton Roy Company | Phase correction for streaming current signal |
US5507089A (en) * | 1992-05-22 | 1996-04-16 | Component Sales & Consultants, Inc. | Method of assembly of a variable reluctance sensor |
US5278496A (en) * | 1992-05-22 | 1994-01-11 | Component Sales & Consultants, Inc. | High output and environmentally impervious variable reluctance sensor |
US5352090A (en) * | 1992-08-07 | 1994-10-04 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | System for determining aerodynamic imbalance |
US5723980A (en) * | 1995-06-07 | 1998-03-03 | Aerogage Corporation | Clearance measurement system |
US5761956A (en) * | 1995-10-17 | 1998-06-09 | Westinghouse Electric Corporation | Passive combustion turbine blade vibration monitor sensor |
US5865599A (en) * | 1997-03-11 | 1999-02-02 | United Technologies Corporation | System and process for direct blade angle measurement in propulsion systems |
SE510060C2 (sv) * | 1997-08-29 | 1999-04-12 | Kvaerner Turbin Ab | Metod och anordning för detektering av glapp i lagringar och manövermekanismer hos ett löphjul eller rotor med vridbara skovlar |
GB2344177A (en) * | 1998-10-19 | 2000-05-31 | Rotadata Ltd | Detecting vibration of turbine blades |
US7023205B1 (en) * | 2000-08-01 | 2006-04-04 | General Dynamics Advanced Information Systems, Inc. | Eddy current sensor capable of sensing through a conductive barrier |
US6692222B2 (en) | 2002-05-14 | 2004-02-17 | The Board Of Trustees Of The Leland Stanford Junior University | Micro gas turbine engine with active tip clearance control |
US20050122095A1 (en) * | 2003-12-05 | 2005-06-09 | Dooley Kevin A. | Rotation sensor and method |
US9000777B2 (en) * | 2005-12-14 | 2015-04-07 | Hamilton Sunstrand | System to measure time of arrival and thickness of rotor blades via microwave energy |
US7824147B2 (en) * | 2006-05-16 | 2010-11-02 | United Technologies Corporation | Airfoil prognosis for turbine engines |
US7326917B2 (en) * | 2006-06-22 | 2008-02-05 | Siemens Power Generation, Inc. | Wear monitor for turbo-machine |
US7827803B1 (en) * | 2006-09-27 | 2010-11-09 | General Electric Company | Method and apparatus for an aerodynamic stability management system |
US8018225B2 (en) * | 2008-11-25 | 2011-09-13 | General Electric Company | System and method for sensing the periodic position of an object |
US7941281B2 (en) * | 2008-12-22 | 2011-05-10 | General Electric Company | System and method for rotor blade health monitoring |
JP5293406B2 (ja) * | 2009-05-28 | 2013-09-18 | 株式会社Ihi | 回転翼の非接触翼振動計測方法 |
EP2339173B1 (en) * | 2009-12-22 | 2015-04-01 | Siemens Aktiengesellschaft | Blade deflection measurement with magnetostrictive sensor |
US8478547B2 (en) * | 2010-08-09 | 2013-07-02 | General Electric Company | Blade monitoring system |
CN102890454A (zh) * | 2011-07-22 | 2013-01-23 | 延锋伟世通汽车电子有限公司 | 一种控制产品加工时间的装置 |
CN117270061B (zh) * | 2023-11-17 | 2024-01-30 | 江苏多维科技有限公司 | 一种铁磁材料检测方法及检测设备 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3222454A (en) * | 1962-06-18 | 1965-12-07 | Hughes Aircraft Co | Digital comparison circuits |
US3505537A (en) * | 1967-03-09 | 1970-04-07 | Rca Corp | Signal envelope discriminator and gating circuit |
US3932813A (en) * | 1972-04-20 | 1976-01-13 | Simmonds Precision Products, Inc. | Eddy current sensor |
US3944936A (en) * | 1974-08-07 | 1976-03-16 | Rca Corporation | Zero crossover detector |
US4013967A (en) * | 1976-04-29 | 1977-03-22 | The United States Of America As Represented By The Secretary Of The Navy | Mid-pulse detector |
US4518917A (en) * | 1982-08-31 | 1985-05-21 | Westinghouse Electric Corp. | Plural sensor apparatus for monitoring turbine blading with undesired component elimination |
US4609869A (en) * | 1983-04-13 | 1986-09-02 | Electro Corporation | Magnetic sensor and circuit for detecting the edge of a target as it passes the centerline of the sensor |
GB8318509D0 (en) * | 1983-07-08 | 1983-08-10 | Rolls Royce | Vibration monitoring in rotary blade machines |
US4605889A (en) * | 1984-08-21 | 1986-08-12 | Resolvex Corporation | Brushless tachometer/synchro |
US4573358A (en) * | 1984-10-22 | 1986-03-04 | Westinghouse Electric Corp. | Turbine blade vibration detection apparatus |
-
1988
- 1988-06-13 US US07/205,770 patent/US4922757A/en not_active Expired - Fee Related
-
1989
- 1989-06-12 IT IT8941631A patent/IT1232809B/it active
- 1989-06-12 ES ES8902047A patent/ES2015155A6/es not_active Expired - Lifetime
- 1989-06-13 KR KR1019890008103A patent/KR900000690A/ko not_active Application Discontinuation
- 1989-06-13 JP JP1150337A patent/JPH02103423A/ja active Pending
- 1989-06-13 CN CN89104091A patent/CN1018862B/zh not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2038918A2 (es) * | 1990-11-01 | 1993-08-01 | Westinghouse Electric Corp | Aparato y metodo para separar los datos de vibracion de modo comun de los datos digitales de las vibraciones de los alabes de una turbina. |
Also Published As
Publication number | Publication date |
---|---|
CN1018862B (zh) | 1992-10-28 |
IT1232809B (it) | 1992-03-05 |
US4922757A (en) | 1990-05-08 |
IT8941631A0 (it) | 1989-06-12 |
KR900000690A (ko) | 1990-01-31 |
CN1038700A (zh) | 1990-01-10 |
JPH02103423A (ja) | 1990-04-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19980601 |