FR2689853B1 - Transformateur différentiel variable linéaire pour un dispositif de variation du pas d'une hélice. - Google Patents

Transformateur différentiel variable linéaire pour un dispositif de variation du pas d'une hélice.

Info

Publication number
FR2689853B1
FR2689853B1 FR9212978A FR9212978A FR2689853B1 FR 2689853 B1 FR2689853 B1 FR 2689853B1 FR 9212978 A FR9212978 A FR 9212978A FR 9212978 A FR9212978 A FR 9212978A FR 2689853 B1 FR2689853 B1 FR 2689853B1
Authority
FR
France
Prior art keywords
differential transformer
linear variable
propeller pitch
variable differential
pitch variation
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
FR9212978A
Other languages
English (en)
Other versions
FR2689853A1 (fr
Inventor
William J Bagge
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.)
Raytheon Technologies Corp
Original Assignee
United Technologies 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 United Technologies Corp filed Critical United Technologies Corp
Publication of FR2689853A1 publication Critical patent/FR2689853A1/fr
Application granted granted Critical
Publication of FR2689853B1 publication Critical patent/FR2689853B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/301—Blade pitch-changing mechanisms characterised by blade position indicating means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/22—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
    • G01D5/2208—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the self-induction of the coils
    • G01D5/2216—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the self-induction of the coils by a movable ferromagnetic element, e.g. a core
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/22—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
    • G01D5/2291—Linear or rotary variable differential transformers (LVDTs/RVDTs) having a single primary coil and two secondary coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Servomotors (AREA)
  • Control Of Turbines (AREA)
FR9212978A 1991-10-25 1992-10-23 Transformateur différentiel variable linéaire pour un dispositif de variation du pas d'une hélice. Expired - Fee Related FR2689853B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78329691A 1991-10-25 1991-10-25

Publications (2)

Publication Number Publication Date
FR2689853A1 FR2689853A1 (fr) 1993-10-15
FR2689853B1 true FR2689853B1 (fr) 1994-08-26

Family

ID=25128786

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9212978A Expired - Fee Related FR2689853B1 (fr) 1991-10-25 1992-10-23 Transformateur différentiel variable linéaire pour un dispositif de variation du pas d'une hélice.

Country Status (2)

Country Link
FR (1) FR2689853B1 (fr)
GB (1) GB2260821B (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2101212C1 (ru) * 1996-10-17 1998-01-10 Йелстаун Корпорейшн Н.В. Система управления соосным реверсивным винтовентилятором
RU2099242C1 (ru) * 1996-10-17 1997-12-20 Йелстаун Корпорейшн Н.В. Воздушный винт изменяемого шага и способ измерения углового положения его лопастей
US6059528A (en) * 1996-11-22 2000-05-09 United Technologies Corporation Electronic propeller control system
US5955880A (en) * 1996-12-05 1999-09-21 Beam; Palmer H. Sealless pump rotor position and bearing monitor
US5925951A (en) 1998-06-19 1999-07-20 Sundstrand Fluid Handling Corporation Electromagnetic shield for an electric motor
US6422816B1 (en) * 2001-05-21 2002-07-23 Hamilton Sundstrand Corporation Variable pitch propeller control system
US9086076B2 (en) 2009-12-18 2015-07-21 Flexxaire Inc. Variable pitch fan having a pitch sensor
GB201007567D0 (en) 2010-05-06 2010-06-23 Rolls Royce Plc BAck-up featherer
GB201007569D0 (en) 2010-05-06 2010-06-23 Rolls Royce Plc Pitch control mechanism
GB201007565D0 (en) 2010-05-06 2010-06-23 Rolls Royce Plc Pitch control mechanism
GB201007564D0 (en) 2010-05-06 2010-06-23 Rolls Royce Plc Back-up featherer
DE112012002341A5 (de) * 2011-06-01 2014-03-06 Schaeffler Technologies AG & Co. KG Kolben-Zylinder-Anordnung mit Wegmess-Sensor
FR2995359B1 (fr) * 2012-09-10 2017-12-08 Snecma Turbomachine, telle qu'un turboreacteur ou un turbopropulseur d'avion
WO2014139560A1 (fr) * 2013-03-13 2014-09-18 Howden Denmark Aps Raccord tournant d'huile ayant une sonde de déplacement montée sur une ligne médiane, système de mesure du déplacement d'un système de régulation de ventilateur axial à pas variable et procédé associé
BR112016005998A2 (pt) 2013-10-07 2017-08-01 Ge Aviat Systems Ltd conjunto de controle de afastamento
FR3028835B1 (fr) * 2014-11-25 2016-11-25 Snecma Dispositif d'actionnement instrumente pour une turbomachine d'aeronef
CN104748661B (zh) * 2015-04-17 2018-02-23 兰州理工大学 差动变压器式位移传感器
CN105423889B (zh) * 2015-12-24 2018-12-07 珠海格力电器股份有限公司 转轴的轴向位移检测方法和装置及磁悬浮轴承系统
GB2548085B (en) 2016-02-29 2019-12-25 Ge Aviation Systems Llc A system and method for coordinating a propeller with an electronic engine control
EP3354562A1 (fr) 2017-01-30 2018-08-01 Ge Avio S.r.l. Dispositif d'écrasement de palier de transfert
US10577078B2 (en) 2017-04-24 2020-03-03 General Electric Company Systems and methods for electronic measurement of propeller blade angle
US10998116B2 (en) * 2018-02-23 2021-05-04 Hamilton Sundstrand Corporation VDT with high permeability shield
US10864980B2 (en) * 2018-07-10 2020-12-15 Pratt & Whitney Canada Corp. System and method for feathering an aircraft propeller

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2370167A (en) * 1942-01-16 1945-02-27 Engineering & Res Corp Indicator for variable pitch propellers
IT7829915A0 (it) * 1977-12-29 1978-11-17 Metacon Ag Apparato per il comando di sistemi azionatori idraulici a cilindro ed a pistone.
DE2914195B1 (de) * 1979-04-07 1980-05-14 Rexroth Gmbh G L Induktiver Messumformer fuer ein fluidisches Stellglied
US4237445A (en) * 1979-07-30 1980-12-02 Goodyear Aerospace Corporation Tire pressure communication devices
DE3127470A1 (de) * 1981-07-11 1983-01-20 Robert Bosch Gmbh, 7000 Stuttgart Induktiver wegaufnehmer fuer ein fluidisches stellglied
US4543732A (en) * 1984-01-20 1985-10-01 Acer Automation Company Automatic nulling LVDT probe
FR2619904B1 (fr) * 1987-08-28 1989-12-01 Merlin Gerin Capteur de position sans contact mecanique
US4948337A (en) * 1989-05-01 1990-08-14 United Technologies Corporation Aircraft engine propulsor blade pitch sensing
GB9108313D0 (en) * 1991-04-18 1991-06-05 Dowty Aerospace Gloucester A variable pitch propeller assembly

Also Published As

Publication number Publication date
GB9222011D0 (en) 1992-12-02
GB2260821A (en) 1993-04-28
GB2260821B (en) 1995-01-04
FR2689853A1 (fr) 1993-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse