IL87634A - Fan blade speed-sensing apparatus - Google Patents
Fan blade speed-sensing apparatusInfo
- Publication number
- IL87634A IL87634A IL87634A IL8763488A IL87634A IL 87634 A IL87634 A IL 87634A IL 87634 A IL87634 A IL 87634A IL 8763488 A IL8763488 A IL 8763488A IL 87634 A IL87634 A IL 87634A
- Authority
- IL
- Israel
- Prior art keywords
- fan blade
- sensing apparatus
- blade speed
- speed
- sensing
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
- G01P5/06—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes
- G01P5/07—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes with electrical coupling to the indicating device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Optical Transform (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/097,874 US4830449A (en) | 1987-09-17 | 1987-09-17 | Polarimetric fiber optic speed sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
IL87634A0 IL87634A0 (en) | 1989-01-31 |
IL87634A true IL87634A (en) | 1991-12-15 |
Family
ID=22265552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL87634A IL87634A (en) | 1987-09-17 | 1988-08-31 | Fan blade speed-sensing apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US4830449A (xx) |
EP (1) | EP0310236B1 (xx) |
JP (1) | JPH01158362A (xx) |
DE (1) | DE3867786D1 (xx) |
IL (1) | IL87634A (xx) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2647560B1 (fr) * | 1989-05-23 | 1994-01-28 | Thomson Csf | Dispositif de lecture de capteurs polarimetriques et interferometriques |
US5113467A (en) * | 1990-11-13 | 1992-05-12 | International Business Machines Corporation | Laser transmitter interlock |
FR2670014B1 (fr) * | 1990-12-04 | 1993-01-22 | Sextant Avionique | Capteur tachymetrrique intrinseque a fibre optique. |
FR2689234B1 (fr) * | 1992-03-26 | 1994-07-01 | Opto Ind | Detecteur de pression a fibre optique perfectionne. |
US5381492A (en) * | 1994-02-15 | 1995-01-10 | Martin Marietta Energy Systems, Inc. | Fiber optic vibration sensor |
DE19902188A1 (de) * | 1999-01-21 | 2000-07-27 | Philips Corp Intellectual Pty | Anordnung zur Drehzahlmessung |
US7423964B2 (en) * | 2004-11-18 | 2008-09-09 | International Business Machines Corporation | Apparatus and method to set the signaling rate of a network disposed within an information storage and retrieval system |
GB0915038D0 (en) | 2009-08-28 | 2009-09-30 | Cummins Turbo Tech Ltd | Speed sensor arrangement |
DE102011016489A1 (de) | 2011-04-08 | 2012-10-11 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Messen der Drehzahl eines Turboverdichters und Kraftfahrzeug |
US11248495B2 (en) | 2019-06-11 | 2022-02-15 | General Electric Company | Systems and methods for sensors on circumferential interior surface of turbomachine casing |
US11179820B2 (en) | 2019-06-11 | 2021-11-23 | General Electric Company | Mounting system for tool for machining circumferential interior surface of turbomachine casing |
US11952907B2 (en) | 2019-06-11 | 2024-04-09 | Ge Infrastructure Technology Llc | Systems and methods for sensors on only part of circumferential interior surface of turbomachine casing |
US11519298B2 (en) | 2019-06-11 | 2022-12-06 | General Electric Company | Sensor mounting for circumferential interior surface of turbomachine casing |
US10774680B1 (en) * | 2019-06-11 | 2020-09-15 | General Electric Company | Optical sensor for circumferential interior surface of turbomachine casing, and related method |
US10976220B2 (en) | 2019-06-11 | 2021-04-13 | General Electric Company | Wireless antenna system for sensors on circumferential interior surface of turbomachine casing |
US11400527B2 (en) | 2019-10-30 | 2022-08-02 | General Electric Company | System and method for machining a slot in an inner surface of a casing for a gas turbine engine |
US11060847B2 (en) | 2019-10-30 | 2021-07-13 | General Electric Company | System and method for optical measurements in a rotary machine |
US11635750B2 (en) | 2019-10-30 | 2023-04-25 | General Electric Company | System and method for removably inserting a sensor assembly into a compressor casing |
US11409022B2 (en) | 2019-10-30 | 2022-08-09 | General Electric Company | System and method for optical measurements in a rotary machine |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3791736A (en) * | 1972-04-28 | 1974-02-12 | Us Air Force | Method and apparatus utilizing the phase velocity difference of light rays for measuring the velocity of a moving object |
US4334777A (en) * | 1976-07-26 | 1982-06-15 | Aerodyne Research, Inc. | Method of monitoring motion |
US4420251A (en) * | 1980-05-05 | 1983-12-13 | Rockwell International Corporation | Optical deformation sensor |
US4459477A (en) * | 1981-08-27 | 1984-07-10 | Trw Inc. | Microbending of optical fibers for remote force measurement |
US4516021A (en) * | 1982-08-09 | 1985-05-07 | Taylor Henry F | Fiber optic magnetic field sensor |
US4603941A (en) * | 1982-09-27 | 1986-08-05 | Agency Of Industrial Science And Technology | Polarization-maintaining fiber system and method of manufacturing the same |
US4697876A (en) * | 1983-02-25 | 1987-10-06 | Andrew Corporation | Fiber-optic rotation sensor |
US4534222A (en) * | 1983-08-08 | 1985-08-13 | Mcdonnell Douglas Corporation | Fiber-optic seismic sensor |
GB8400985D0 (en) * | 1984-01-14 | 1984-02-15 | Jackson D A | Polarimetric fibre sensor |
DE8419186U1 (de) * | 1984-06-23 | 1984-09-20 | Joh. Vaillant Gmbh U. Co, 5630 Remscheid | Drehzahlgeber |
US4564289A (en) * | 1984-07-31 | 1986-01-14 | Geo-Centers, Inc. | Single mode optical fiber polarimetric stress sensor having optical common mode rejection |
US4773753A (en) * | 1985-09-03 | 1988-09-27 | Daiichi Denshi Kogyo Kabushiki Kaisha | Fiber sensor |
-
1987
- 1987-09-17 US US07/097,874 patent/US4830449A/en not_active Expired - Fee Related
-
1988
- 1988-08-18 EP EP88307674A patent/EP0310236B1/en not_active Expired
- 1988-08-18 DE DE8888307674T patent/DE3867786D1/de not_active Expired - Fee Related
- 1988-08-31 IL IL87634A patent/IL87634A/xx unknown
- 1988-09-16 JP JP63230212A patent/JPH01158362A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0310236A3 (en) | 1989-08-30 |
EP0310236A2 (en) | 1989-04-05 |
IL87634A0 (en) | 1989-01-31 |
US4830449A (en) | 1989-05-16 |
JPH01158362A (ja) | 1989-06-21 |
DE3867786D1 (de) | 1992-02-27 |
EP0310236B1 (en) | 1992-01-15 |
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