FR2851334A1 - Aircraft torque shaft angular deformation measuring device has magnetic readers which are opposite poles of an induction sensor comprising an inductance coil wound around a core joining the poles - Google Patents

Aircraft torque shaft angular deformation measuring device has magnetic readers which are opposite poles of an induction sensor comprising an inductance coil wound around a core joining the poles Download PDF

Info

Publication number
FR2851334A1
FR2851334A1 FR0301802A FR0301802A FR2851334A1 FR 2851334 A1 FR2851334 A1 FR 2851334A1 FR 0301802 A FR0301802 A FR 0301802A FR 0301802 A FR0301802 A FR 0301802A FR 2851334 A1 FR2851334 A1 FR 2851334A1
Authority
FR
France
Prior art keywords
poles
angular deformation
induction sensor
inductance coil
measuring device
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.)
Granted
Application number
FR0301802A
Other languages
French (fr)
Other versions
FR2851334B1 (en
Inventor
Patrick Rene Denis Joland
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.)
Safran Aircraft Engines SAS
Original Assignee
Hispano Suiza SA
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 Hispano Suiza SA filed Critical Hispano Suiza SA
Priority to FR0301802A priority Critical patent/FR2851334B1/en
Priority to PCT/FR2004/000104 priority patent/WO2004067215A2/en
Publication of FR2851334A1 publication Critical patent/FR2851334A1/en
Application granted granted Critical
Publication of FR2851334B1 publication Critical patent/FR2851334B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02Rotary-transmission dynamometers
    • G01L3/04Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
    • G01L3/105Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means involving inductive means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

The device has a pair of toothed disks (2, 3) connected to different sections of a torque shaft (1), and magnetic readers (5, 6) located in front of the disks. The readers are opposite poles of the same induction sensor comprising a core (7) joining the poles and having a single inductance coil (8) which is also a receiver.

Description

DISPOSITIF DE MESURE DE DEFORMATION ANGULAIRE D'UN ARBRE DE TORSIONDEVICE FOR MEASURING ANGULAR DEFORMATION OF A TORSION SHAFT

D'AERONEFAIRCRAFT

DESCRIPTIONDESCRIPTION

Cette invention a trait à un dispositif de mesure de déformation angulaire d'un arbre de torsion.  This invention relates to a device for measuring the angular deformation of a torsion shaft.

Elle peut trouver emploi dans des moteurs d'aéronef, o on désire souvent mesurer les efforts exercés pour entraîner une hélice au moyen de la déformation 10 angulaire d'un arbre menant à cette hélice.  It can be used in aircraft engines, where it is often desired to measure the forces exerted to drive a propeller by means of the angular deformation of a shaft leading to this propeller.

Un dispositif classique consiste à munir deux sections opposées de l'arbre de disques dentés dont des lecteurs magnétiques respectifs suivent la rotation. chaque passage de dent, un signal parcourt le lecteur 15 concerné. Le décalage de phase entre les signaux exprime un angle de déformation de l'arbre entre les deux sections porteuses des disques, et cet angle est proportionnel au couple appliqué à l'hélice. Un exemple d'un tel dispositif est décrit dans le brevet français 20 2 631 700.  A conventional device consists in providing two opposite sections of the toothed disc shaft whose respective magnetic readers follow the rotation. each tooth passage, a signal travels through the reader 15 concerned. The phase shift between the signals expresses a deformation angle of the shaft between the two bearing sections of the discs, and this angle is proportional to the torque applied to the propeller. An example of such a device is described in French patent 20 2,631,700.

Un inconvénient de ce genre de dispositif est que la discrimination des signaux indicateurs du passage d'une des dents n'est pas facile à faire quand l'angle de déphasage est petit.  A disadvantage of this type of device is that the discrimination of the signals indicating the passage of one of the teeth is not easy to do when the phase angle is small.

On a donc cherché, en concevant cette invention, à rendre la mesure plus facile.  We have therefore sought, by designing this invention, to make the measurement easier.

Pour résumer, l'invention est relative à un dispositif de mesure de déformation angulaire d'un arbre de torsion, qui comprend une paire de disques 30 dentés liés à des sections différentes de l'arbre et des lecteurs magnétiques situés respectivement devant SP 21350/JCI les disques; elle est caractérisée en ce que les lecteurs sont des pôles opposés d'un même capteur à induction comprenant un noyau joignant lesdits pôles et muni d'un bobinage récepteur, qui est unique et commun aux deux lecteurs.  To summarize, the invention relates to a device for measuring the angular deformation of a torsion shaft, which comprises a pair of toothed discs 30 linked to different sections of the shaft and magnetic readers located respectively in front of SP 21350 / JCI records; it is characterized in that the readers are opposite poles of the same induction sensor comprising a core joining said poles and provided with a receiving coil, which is unique and common to the two readers.

L'avantage fondamental que procure l'invention est que les signaux obtenus à la rotation des disques sont opposés, ce qui permet de les mieux distinguer avec un dispositif unique, même s'ils se chevauchent 10 partiellement.  The fundamental advantage afforded by the invention is that the signals obtained from the rotation of the discs are opposite, which makes it possible to better distinguish them with a single device, even if they overlap partially.

L'invention sera maintenant décrite au moyen des figures. La figure 1 représente un dispositif conforme à l'invention, la figure 2 représente une vue plus générale d'un appareillage à mesure de déformation 15 angulaire d'un arbre et la figure 3 illustre les signaux obtenus.  The invention will now be described by means of the figures. FIG. 1 represents a device according to the invention, FIG. 2 represents a more general view of an apparatus for angular deformation measurement of a shaft and FIG. 3 illustrates the signals obtained.

Se reportant à la figure 1, on aperçoit un arbre 1 muni de disques 2 et 3 parallèles à des sections différentes, et qui servent à mesurer la déformation 20 angulaire de l'arbre 1 entre eux. Les disques 2 et 3 sont semblables et munis de reliefs sous forme de dents 4. Deux lecteurs magnétiques 5 et 6 sont disposés près de la circonférence des disques 2 et 3 respectivement.  Referring to Figure 1, there is a shaft 1 provided with discs 2 and 3 parallel to different sections, and which are used to measure the angular deformation 20 of the shaft 1 between them. The discs 2 and 3 are similar and provided with reliefs in the form of teeth 4. Two magnetic readers 5 and 6 are arranged near the circumference of the discs 2 and 3 respectively.

Ils consistent en les pôles d'un même appareil de 25 lecture qui comprend encore un noyau 7 joignant les pôles 5 et 6 et autour duquel est enroulé un bobinage inducteur 8 dont un circuit d'exploitation 9 est disposé aux bornes du bobinage 8.  They consist of the poles of the same reading device which also comprises a core 7 joining the poles 5 and 6 and around which an inductor winding 8 is wound, an operating circuit 9 of which is arranged at the terminals of the winding 8.

On passe à l'examen de la figure 2. L'arbre 1 est 30 disposé entre une hélice 10 d'un moteur d'avion et un générateur des gaz 11 qui entraîne l'hélice 10 par SP 21350/JCI l'intermédiaire de l'arbre 1. L'un des disques 2 est disposé à une extrémité de l'arbre 1, près du générateur des gaz 11, alors que l'autre des disques 3 est solidaire de la section de l'arbre 2 qui est 5 adjacente à l'hélice 10, mais il est en réalité monté sur une entretoise 12 qui couvre la plus grande partie de l'arbre 1, afin d'être placé près du disque précédent 2.  We pass to the examination of FIG. 2. The shaft 1 is arranged between a propeller 10 of an aircraft engine and a gas generator 11 which drives the propeller 10 by SP 21350 / JCI through the shaft 1. One of the discs 2 is disposed at one end of the shaft 1, near the gas generator 11, while the other of the discs 3 is integral with the section of the shaft 2 which is 5 adjacent to the propeller 10, but it is actually mounted on a spacer 12 which covers most of the shaft 1, in order to be placed near the previous disc 2.

La figure 3 illustre des signaux obtenus. Quand 10 une dent 4 du disque 2 passe devant le lecteur 5, une impulsion 15 est enregistrée par le circuit d'exploitation 9 du capteur. Quand une dent 4 de l'autre des disques 3 passe devant l'autre des lecteurs 6, le circuit d'exploitation 9 du capteur enregistre 15 une autre impulsion 16 symétrique de la précédente puisqu'elle est enregistrée par le même bobinage 8, mais qui est placé symétriquement par rapport au pôle de lecture.  Figure 3 illustrates signals obtained. When a tooth 4 of the disc 2 passes in front of the reader 5, a pulse 15 is recorded by the operating circuit 9 of the sensor. When a tooth 4 of the other of the discs 3 passes in front of the other of the readers 6, the operating circuit 9 of the sensor 15 records another pulse 16 symmetrical with the previous one since it is recorded by the same coil 8, but which is placed symmetrically with respect to the reading pole.

La durée Tl séparant les impulsions 15 et 16, 20 rapportée à la durée T2 séparant deux impulsions 15 ou deux impulsions 16 de même genre consécutives, est égale au rapport entre la déformation angulaire de l'arbre 1 et le pas séparant deux dents successives.  The duration T1 separating the pulses 15 and 16, 20 referred to the duration T2 separating two pulses 15 or two pulses 16 of the same kind consecutive, is equal to the ratio between the angular deformation of the shaft 1 and the pitch separating two successive teeth.

Un autre avantage procuré par l'invention est que 25 le circuit d'exploitation 9 et le moyen sensible (le bobinage 8) sont uniques, ce qui simplifie le dispositif.  Another advantage provided by the invention is that the operating circuit 9 and the sensitive means (the winding 8) are unique, which simplifies the device.

Il faut enfin remarquer que le capteur se prête bien aux réglages, en tournant le noyau 7 pour placer 30 les lecteurs 5 et 6 en phase devant les dents 4 des disques 2 et 3.  Finally, it should be noted that the sensor lends itself well to adjustments, by turning the core 7 to place the readers 5 and 6 in phase in front of the teeth 4 of the disks 2 and 3.

SP 21350/JCISP 21350 / JCI

Claims (1)

REVENDICATIONCLAIM Dispositif de mesure de déformation angulaire dans un arbre (1) de torsion, comprenant une paire de 5 disques dentés (2, 3) liés à des sections différentes de l'arbre et des lecteurs (5, 6) magnétiques situés respectivement devant les disques, caractérisé en ce que les lecteurs sont des pôles opposés d'un même capteur à induction comprenant un noyau (7) joignant 10 lesdits pôles et muni d'un bobinage récepteur (8).  Device for measuring angular deformation in a torsion shaft (1), comprising a pair of 5 toothed discs (2, 3) linked to different sections of the shaft and magnetic readers (5, 6) located respectively in front of the discs , characterized in that the readers are opposite poles of the same induction sensor comprising a core (7) joining 10 said poles and provided with a receiving winding (8). SP 21350/JCISP 21350 / JCI
FR0301802A 2003-01-17 2003-02-14 DEVICE FOR MEASURING ANGULAR DEFORMATION OF AN AIRCRAFT TORSION ARBOR. Expired - Lifetime FR2851334B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0301802A FR2851334B1 (en) 2003-02-14 2003-02-14 DEVICE FOR MEASURING ANGULAR DEFORMATION OF AN AIRCRAFT TORSION ARBOR.
PCT/FR2004/000104 WO2004067215A2 (en) 2003-01-17 2004-01-19 Device for measuring the angular deformation of an aircraft torque shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0301802A FR2851334B1 (en) 2003-02-14 2003-02-14 DEVICE FOR MEASURING ANGULAR DEFORMATION OF AN AIRCRAFT TORSION ARBOR.

Publications (2)

Publication Number Publication Date
FR2851334A1 true FR2851334A1 (en) 2004-08-20
FR2851334B1 FR2851334B1 (en) 2005-06-03

Family

ID=32749575

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0301802A Expired - Lifetime FR2851334B1 (en) 2003-01-17 2003-02-14 DEVICE FOR MEASURING ANGULAR DEFORMATION OF AN AIRCRAFT TORSION ARBOR.

Country Status (1)

Country Link
FR (1) FR2851334B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2457700A (en) * 1942-12-09 1948-12-28 Gen Motors Corp Torque meter
US3329012A (en) * 1963-11-08 1967-07-04 Schaevitz Engineering Torsion measuring device
US4682505A (en) * 1985-12-13 1987-07-28 Pratt & Whitney Canada Inc. Compact torque measurement system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2457700A (en) * 1942-12-09 1948-12-28 Gen Motors Corp Torque meter
US3329012A (en) * 1963-11-08 1967-07-04 Schaevitz Engineering Torsion measuring device
US4682505A (en) * 1985-12-13 1987-07-28 Pratt & Whitney Canada Inc. Compact torque measurement system

Also Published As

Publication number Publication date
FR2851334B1 (en) 2005-06-03

Similar Documents

Publication Publication Date Title
EP0343022B1 (en) Bicycle driving wheel or the like comprising a detection system of the transmitted torque, and bicycle equipped with such a wheel
EP0681690B1 (en) Differential torque measurement device
EP0539543A1 (en) Programmable inertial training machine.
FR2872902A1 (en) MAGNETIC RING TORQUE SENSOR
FR2653507A1 (en) DEVICE FOR THE SYNCHRONOUS COUPLING OF ROTATING ELEMENTS OF A MACHINE, IN PARTICULAR A PRINTING MACHINE.
EP0491621B1 (en) Angle position sensor with magnetoresistors
FR2365105A1 (en) DEVICE FOR DETERMINING THE POSITION AND NUMBER OF TURNS OF A ROTATING SHAFT
FR2851334A1 (en) Aircraft torque shaft angular deformation measuring device has magnetic readers which are opposite poles of an induction sensor comprising an inductance coil wound around a core joining the poles
CA2376431A1 (en) Method for contactless measuring of vibrations of a rotating body
FR2595821A1 (en) METHOD AND DEVICE FOR MEASURING THE TORQUE TRANSMITTED BY A TREE SUBJECTED TO TEMPERATURE VARIATIONS
WO2004067215A2 (en) Device for measuring the angular deformation of an aircraft torque shaft
EP0235210A1 (en) Device for detecting the displacement of a writing implement
FR2633722A1 (en) PULSE GENERATOR FOR ROTATION SPEED SENSOR
FR2993657A1 (en) DEVICE FOR MEASURING A TORQUE TRANSMITTED BY A POWER TRANSMISSION SHAFT WITH ACCOUNTING OF TEMPERATURE VARIATIONS
JP3053442B2 (en) Pilot rotation detector for water meter
FR2464515A1 (en) LOW THICK BRACELET WATCH
EP0066521A2 (en) Differential sensor for a control apparatus using eddy currents, consisting of two windings on a triangular core
FR2528173A1 (en) CASSETTE FOR MEASURING TORQUE OF ROTATION ON SHAFT OF CHUCKS OF CASSETTE DEVICES
JPH10274575A (en) Rotating torque sensor
FR2809522A1 (en) Driving simulator with steering column includes torque limiter linking steering column to controlling motor
FR2545631A1 (en) IMPROVEMENTS TO METHODS AND DEVICES FOR READING MAGNETIC ACCESS CONTROL CARDS OR THE LIKE
EP1936169A3 (en) Method for estimating the timing of the teeth of an engine timing disk
WO1979000363A1 (en) Device for measuring characteristical parameters of the speed of a handwriting
FR2850167A1 (en) Motors torque measuring device for aircraft, has sensor measuring angle of deformity of transmission shaft that includes odd concentric sections which are united in form of chain by two connections
BE651832A (en)

Legal Events

Date Code Title Description
TP Transmission of property
PLFP Fee payment

Year of fee payment: 14

PLFP Fee payment

Year of fee payment: 15

PLFP Fee payment

Year of fee payment: 16

CD Change of name or company name

Owner name: SAFRAN AIRCRAFT ENGINES, FR

Effective date: 20170717

PLFP Fee payment

Year of fee payment: 18

PLFP Fee payment

Year of fee payment: 19

PLFP Fee payment

Year of fee payment: 20