ES2019770A6 - Ordenador para tiempos de llegada de alabes de turbina. - Google Patents

Ordenador para tiempos de llegada de alabes de turbina.

Info

Publication number
ES2019770A6
ES2019770A6 ES8904317A ES8904317A ES2019770A6 ES 2019770 A6 ES2019770 A6 ES 2019770A6 ES 8904317 A ES8904317 A ES 8904317A ES 8904317 A ES8904317 A ES 8904317A ES 2019770 A6 ES2019770 A6 ES 2019770A6
Authority
ES
Spain
Prior art keywords
sensor
blade
arrival time
time
gain control
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
Application number
ES8904317A
Other languages
English (en)
Inventor
Karl C Koch
Carlo F Petronia
Robert M Oates
Jr Charles W Einolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WSTINGHOUSE ELECTRIC CORP
Original Assignee
WSTINGHOUSE ELECTRIC CORP
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WSTINGHOUSE ELECTRIC CORP filed Critical WSTINGHOUSE ELECTRIC CORP
Publication of ES2019770A6 publication Critical patent/ES2019770A6/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Turbines (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Feedback Control In General (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

ORDENADOR PARA TIEMPOS DE LLEGADA DE ALABES DE TURBINA. UN APARATO PARA DETECTAR EL TIEMPO DE PASO DE ALABES DE TURBINA INCLUYE UN SENSOR PARA PRODUCIR UNA SEÑAL DE ENTRADA CADA VEZ QUE UN ALABE PASA POR EL SENSOR. UN CIRCUITO DE CONTROL DE GANANCIA AUTOMATICO QUE INCLUYE UN MULTIPLICADOR DIGITAL. UN DETECTOR DE PICO Y UN AMPLIFICADOR DE ERROR, REGULA LA AMPLITUD DE LA SEÑAL DE ENTRADA. UN DETECTOR DE CRUCE POR CERO PRODUCE UNA SEÑAL DE SALIDA CADA VEZ QUE LA SEÑAL DE ENTRADA CRUZA UN EJE DE REFERENCIA. UN COMPARADOR DE PREDISPARO PRODUCE UNA SEÑAL DE PASO DE DISCRIMINADO QUE COINCIDE CON EL TIEMPO O MOMENTO DE LLEGADA ESPERADO DEL ALABE AL SENSOR. UN DISPOSITIVO DE PUERTA RESPONDE A LA SEÑAL DE PASO DISCRIMINADO PARA CONDUCIR SEÑALES DE SALIDA QUE OCURREN DURANTE EL TIEMPO DE LLEGADA ESPERADO DEL ALABE AL SENSOR.
ES8904317A 1988-12-22 1989-12-21 Ordenador para tiempos de llegada de alabes de turbina. Expired - Fee Related ES2019770A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/288,592 US5015949A (en) 1988-12-22 1988-12-22 Steam turbine blade arrival time processor with automatic gain control

Publications (1)

Publication Number Publication Date
ES2019770A6 true ES2019770A6 (es) 1991-07-01

Family

ID=23107784

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8904317A Expired - Fee Related ES2019770A6 (es) 1988-12-22 1989-12-21 Ordenador para tiempos de llegada de alabes de turbina.

Country Status (7)

Country Link
US (1) US5015949A (es)
JP (1) JPH02216018A (es)
KR (1) KR900010377A (es)
CN (1) CN1044855A (es)
CA (1) CA2006286A1 (es)
ES (1) ES2019770A6 (es)
IT (1) IT1236893B (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148711A (en) * 1990-11-01 1992-09-22 Westinghouse Electric Corp. Apparatus and method for removing common mode vibration data from digital turbine blade vibration data
US5144233A (en) * 1991-08-30 1992-09-01 Delco Electronics Corporation Crankshaft angular position voltage developing apparatus having adaptive control and diode control
US5459398A (en) * 1993-12-17 1995-10-17 Delco Electronics Corporation Adaptive threshold circuit
US5510706A (en) * 1994-02-22 1996-04-23 Delco Electronics Corporation Differential to single-ended conversion circuit for a magnetic wheel speed sensor
US7170284B2 (en) * 2002-02-13 2007-01-30 Hood Technology Corporation Blade detection sensor having an active cooling system
US6927567B1 (en) * 2002-02-13 2005-08-09 Hood Technology Corporation Passive eddy current blade detection sensor
US20070068225A1 (en) 2005-09-29 2007-03-29 Brown Gregory C Leak detector for process valve
US9000777B2 (en) * 2005-12-14 2015-04-07 Hamilton Sunstrand System to measure time of arrival and thickness of rotor blades via microwave energy
US7913566B2 (en) * 2006-05-23 2011-03-29 Rosemount Inc. Industrial process device utilizing magnetic induction
GB0712926D0 (en) * 2007-07-04 2007-08-15 Qinetiq Ltd Eddy current sensors
US8898036B2 (en) 2007-08-06 2014-11-25 Rosemount Inc. Process variable transmitter with acceleration sensor
EP2096652B1 (en) * 2008-02-27 2011-08-24 Ansaldo Energia S.P.A. Method and device for detecting the natural frequencies of vibration of a turbine blade
US8250924B2 (en) 2008-04-22 2012-08-28 Rosemount Inc. Industrial process device utilizing piezoelectric transducer
US7941281B2 (en) * 2008-12-22 2011-05-10 General Electric Company System and method for rotor blade health monitoring
US7800434B1 (en) * 2009-04-07 2010-09-21 Micrel, Inc. Edge detect receiver circuit
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
US8963735B2 (en) 2011-11-30 2015-02-24 Rosemount Inc. Turbine meter pre-scaling terminal block electronics
KR101440354B1 (ko) 2012-04-16 2014-11-03 한국에너지기술연구원 고온가스의 체류시간이 연장되는 ｆｒｄｆ 신속 고열분해 부유 연소식 파워 스팀 제네레이터
US9593941B2 (en) 2014-09-24 2017-03-14 Hood Technology Corporation Clearance detection system and method using frequency identification
CZ307599B6 (cs) * 2017-10-18 2019-01-02 Ăšstav termomechaniky AV ÄŚR, v. v. i. Způsob identifikace feromagnetických lopatek stroje za rotace

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715659A (en) * 1970-03-25 1973-02-06 Reliance Electric Co Inductive non-contact vibration analyzer which is independent of standoff distance
US3908167A (en) * 1974-06-05 1975-09-23 Rca Corp Exhaust-responsive engine speed and condition indicator
US3944936A (en) * 1974-08-07 1976-03-16 Rca Corporation Zero crossover detector
US3995224A (en) * 1975-04-30 1976-11-30 Rca Corporation Fast automatic gain control circuit with adjustable range
US4037163A (en) * 1976-03-08 1977-07-19 General Electric Company Automatic gain control circuit
US4013967A (en) * 1976-04-29 1977-03-22 The United States Of America As Represented By The Secretary Of The Navy Mid-pulse detector
US4563643A (en) * 1982-07-30 1986-01-07 Westinghouse Electric Corp. Eddy current proximity sensor for use in a hostile turbine environment
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
US4573358A (en) * 1984-10-22 1986-03-04 Westinghouse Electric Corp. Turbine blade vibration detection apparatus
US4922757A (en) * 1988-06-13 1990-05-08 Westinghouse Electric Corp. Apparatus for precise detection of blade passing times in a steam turbine

Also Published As

Publication number Publication date
KR900010377A (ko) 1990-07-07
IT8922742A1 (it) 1991-06-19
IT8922742A0 (it) 1989-12-19
JPH02216018A (ja) 1990-08-28
CA2006286A1 (en) 1990-06-22
CN1044855A (zh) 1990-08-22
IT1236893B (it) 1993-04-26
US5015949A (en) 1991-05-14

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2009-12-21

FD1A Patent lapsed

Effective date: 20010503