FR2921720B1 - Dispositif d'acquisition lvdt a double chaine de demodulation - Google Patents
Dispositif d'acquisition lvdt a double chaine de demodulationInfo
- Publication number
- FR2921720B1 FR2921720B1 FR0706844A FR0706844A FR2921720B1 FR 2921720 B1 FR2921720 B1 FR 2921720B1 FR 0706844 A FR0706844 A FR 0706844A FR 0706844 A FR0706844 A FR 0706844A FR 2921720 B1 FR2921720 B1 FR 2921720B1
- Authority
- FR
- France
- Prior art keywords
- lvdt
- acquisition device
- demodulation chain
- chain acquisition
- dual demodulation
- 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.)
- Active
Links
Classifications
-
- 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
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
- G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
-
- 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
- G01D5/225—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 mutual induction between the two coils
- G01D5/2258—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 mutual induction between the two coils by a movable ferromagnetic element, e.g. core
- G01D5/2266—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 mutual induction between the two coils by a movable ferromagnetic element, e.g. core specially adapted circuits therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
L'invention concerne les capteurs de position du type à différence d'induction variable linéairement. Lorsque les contraintes de coût interdisent le recours à des transformateurs à tolérance de déphasage garantie pour tenir un objectif de précision, il est avantageux de prévoir une démodulation indépendante des signaux des deux bobinages. Le signal d'erreur a ainsi une dépendance plus faible au déphasage et la précision est typiquement améliorée d'un facteur supérieur à un ordre de grandeur.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0706844A FR2921720B1 (fr) | 2007-09-28 | 2007-09-28 | Dispositif d'acquisition lvdt a double chaine de demodulation |
US12/239,956 US7893687B2 (en) | 2007-09-28 | 2008-09-29 | LVDT acquisition device with dual demodulation subsystem |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0706844A FR2921720B1 (fr) | 2007-09-28 | 2007-09-28 | Dispositif d'acquisition lvdt a double chaine de demodulation |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2921720A1 FR2921720A1 (fr) | 2009-04-03 |
FR2921720B1 true FR2921720B1 (fr) | 2017-01-20 |
Family
ID=39661438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0706844A Active FR2921720B1 (fr) | 2007-09-28 | 2007-09-28 | Dispositif d'acquisition lvdt a double chaine de demodulation |
Country Status (2)
Country | Link |
---|---|
US (1) | US7893687B2 (fr) |
FR (1) | FR2921720B1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8249626B2 (en) * | 2005-07-14 | 2012-08-21 | Huston Charles D | GPS based friend location and identification system and method |
US8558408B2 (en) | 2010-09-29 | 2013-10-15 | General Electric Company | System and method for providing redundant power to a device |
US8278779B2 (en) | 2011-02-07 | 2012-10-02 | General Electric Company | System and method for providing redundant power to a device |
CN102590692B (zh) * | 2012-02-13 | 2014-07-23 | 浙江中控技术股份有限公司 | 位移传感器断线检测装置 |
US10132663B2 (en) * | 2015-04-30 | 2018-11-20 | Goodrich Corporation | Self-calibrating linear voltage differential transformer demodulator |
WO2019001858A1 (fr) * | 2017-06-30 | 2019-01-03 | Safran Electronics & Defense | Procede de mesure utilisant un capteur de deplacement inductif |
FR3068465A1 (fr) | 2017-06-30 | 2019-01-04 | Safran Electronics & Defense | Procede de mesure utilisant un capteur de deplacement inductif |
CN109962680B (zh) * | 2019-03-21 | 2023-05-30 | 西安联飞智能装备研究院有限责任公司 | 一种非相敏解调电路及解调方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4514689A (en) * | 1982-12-27 | 1985-04-30 | Varian Associates, Inc. | High resolution position sensing apparatus with linear variable differential transformers having phase-shifted energizing signals |
JPH057526Y2 (fr) * | 1987-08-05 | 1993-02-25 | ||
US5327030A (en) * | 1987-11-13 | 1994-07-05 | Analog Devices, Inc. | Decoder and monolithic integrated circuit incorporating same |
DE102005035316B4 (de) * | 2005-07-28 | 2007-07-26 | Diehl Aerospace Gmbh | Messanordnung |
-
2007
- 2007-09-28 FR FR0706844A patent/FR2921720B1/fr active Active
-
2008
- 2008-09-29 US US12/239,956 patent/US7893687B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7893687B2 (en) | 2011-02-22 |
FR2921720A1 (fr) | 2009-04-03 |
US20090086830A1 (en) | 2009-04-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2921720B1 (fr) | Dispositif d'acquisition lvdt a double chaine de demodulation | |
US10203223B2 (en) | Device for determining the absolute position of a movable body | |
WO2009047401A3 (fr) | Capteur magnétique sans contact de position absolue multitour à arbre traversant | |
EP2793001A3 (fr) | Capteur de position angulaire magnétique pour une course allant jusqu'à 360° | |
KR101377081B1 (ko) | 스티어링 각도 센서 | |
DE602007012674D1 (de) | D kreisel mit leistungssteuerung | |
WO2011106099A3 (fr) | Systèmes et procédés pour la mesure d'un mouvement d'équilibre et de suivi chez des mammifères | |
JPWO2014200105A1 (ja) | 誘導型位置検出装置 | |
WO2009041023A1 (fr) | Dispositif de détection de rotation et roulement ayant le dispositif de détection de rotation | |
WO2011090767A3 (fr) | Circuits et procédés de détection de phase | |
WO2011059842A3 (fr) | Techniques de détection de phase | |
CN105890514A (zh) | 用于获取车辆中的旋转构件处的转角的传感器装置 | |
EP2410298A3 (fr) | Encodeur optique | |
WO2002004895A3 (fr) | Capteur de position optique et procede de determination de position | |
DE602006011221D1 (de) | Unterabtastung eines sich wiederholenden signals zur messung von übergangszeiten zur rekonstruktion einer analogen signalform | |
NO20060634L (no) | Filtrert beregning av sensormatriseindusert fasevinkel uavhengig av faseforskyvning i demoduluasjonen til fasegenerert baerebolge | |
ATE439673T1 (de) | Schaltung mit gesammelten daten mittels nulldurchgangserkennung | |
EP1422582A3 (fr) | Dispositif de détection de position d'aiguilles et montre utilisant un tel dispositif | |
WO2004109234A3 (fr) | Capteur de position angulaire absolue sur 360° d’un organe rotatif | |
WO2008123279A1 (fr) | Appareil de détection de phase et appareil de détection de position | |
TW200506906A (en) | Detecting device for tracing error | |
US20120209562A1 (en) | Assembly and method for determining an angular position | |
ATE507565T1 (de) | Abtastdatenschaltungen mit nulldurchgangsdetektion | |
TW200711315A (en) | Phase detection devices and methods thereof | |
ATE463741T1 (de) | Verfahren zur messung eines oxidierten ldl-beta2- gpi-crp-komplex |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 9 |
|
PLFP | Fee payment |
Year of fee payment: 10 |
|
PLFP | Fee payment |
Year of fee payment: 11 |
|
PLFP | Fee payment |
Year of fee payment: 12 |
|
PLFP | Fee payment |
Year of fee payment: 13 |
|
PLFP | Fee payment |
Year of fee payment: 14 |
|
PLFP | Fee payment |
Year of fee payment: 15 |
|
PLFP | Fee payment |
Year of fee payment: 16 |
|
PLFP | Fee payment |
Year of fee payment: 17 |