WO2009083519A1 - Procede de mesure par systeme gyroscopique - Google Patents
Procede de mesure par systeme gyroscopique Download PDFInfo
- Publication number
- WO2009083519A1 WO2009083519A1 PCT/EP2008/068123 EP2008068123W WO2009083519A1 WO 2009083519 A1 WO2009083519 A1 WO 2009083519A1 EP 2008068123 W EP2008068123 W EP 2008068123W WO 2009083519 A1 WO2009083519 A1 WO 2009083519A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- angle
- measurement
- vibration
- measuring means
- values
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/56—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
- G01C19/567—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using the phase shift of a vibration node or antinode
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/56—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
Definitions
- the present invention relates to vibrating gyroscopes whose principle is based on the effect of Coriolis and more particularly relates to the precision of the rotation angle values provided by this type of gyro.
- Such vibrating gyroscopes are conventionally used in inertial systems intended for navigation, as is the case, for example, for a gyroscopic compass which is adapted to provide a measurement of angle with respect to a reference direction which is that of the geographical North. (Cape Town).
- Axisymmetrical Coriolis Vibratory Gyroscopes (CVG) type gyroscopes for example of the Hemispherical Resonance Gyroscope (HRG or GRH) type or more generally referred to as Type I type, such as those described in the Andrei Type I and Type II micromachined vibratory gyroscopes document.
- HRG or GRH Hemispherical Resonance Gyroscope
- Type I type such as those described in the Andrei Type I and Type II micromachined vibratory gyroscopes document.
- Mr. Shkel, pages 586-593, IEEE / ION for the Institute of Electrical and Electronics Engineer / Institute of Navigation, PLANS 2006, San Diego, CA, USA
- Such a gyroscope can also be used in closed loop by controlling the vibration position via a precession control as described in particular in document FR 2 755 227.
- the vibration position of the gyroscope is maintained in a fixed position, and the measurement is deduced from the control that it is necessary to apply to the gyroscope to maintain it in this fixed vibration position.
- This type of operation is also called 'gyrometer looping'.
- the values provided by the physical measurement no longer correspond to an angle but to a speed of rotation.
- the measurements provided by these vibrating gyroscopes may be marred by errors which are essentially a function of the position of the vibration relative to the measuring electrodes. These errors are therefore variable according to the vibration position. These errors have the effect of degrading the level of precision of the values thus measured. It is therefore useful to try to reduce these errors in order to improve the performances of this type of gyroscope.
- EP 1 752 733 describes a method for reducing such errors affecting the measured values so as to increase the performance of such measuring apparatus. .
- this document provides for the use of a second closed-loop gyroscope, or gyrometer, to provide a measurement of rotational speed in place of the first gyroscope when the latter is in the process of changing the vibration position and can not therefore provide a relevant measure of the rotational speed to be measured.
- a second closed-loop gyroscope or gyrometer
- the measurements provided by a gyroscope have, compared to the measurements provided by a gyroscope operating in an open loop, a degradation in the accuracy of the measurement provided which is essentially related to the uncertainties that are introduced by the transformation. which must then be applied to the control to obtain a speed of rotation.
- the present invention aims to overcome these disadvantages.
- One embodiment of the present invention relates to type I gyroscopes.
- the present invention aims to improve the situation.
- a first aspect of the present invention provides a measurement method by a gyroscopic system comprising at least:
- a vibrating gyroscope as the first angle measuring means, adapted to change vibration position among a plurality of vibration positions, and to provide a first measurement of angle values along a measurement axis in the one of the vibration positions of said plurality of vibration positions, said first means of a measure having a first zero reference as an angle value; and second angle measuring means adapted to provide a second measurement of angle values along said measurement axis, said second measurement having a second reference of zero as the angle value; said measuring method comprising the following steps for implementing a vibration position change of the first angle measuring means:
- the first and the second measuring means are adapted to provide angle values.
- angle values that are coherent with each other throughout the process of changing the vibration position of the vibratory gyroscope. Indeed, whether the measured angle values are provided by the first angle measuring means or by the second angle measuring means, these angle values are advantageously corrected with respect to their respective reference zeros respectively.
- the measurement errors of the first measuring means which are related to the vibration positions of the vibrating gyroscope, can be advantageously averaged over the different vibration positions implemented at the level of the vibrating gyroscope.
- the angle measurement may be provided by the first measuring means which vibrates in a first position, and then, while a change of vibration position is controlled on the vibrating gyroscope from the first vibration position to a second vibration position. , the angle measurement can then be advantageously provided by the second measurement means and after correction of these angle values with respect to the different reference zeros of the first and second measuring means.
- the second angle measuring means is any angle measuring means.
- the angle measurement provided by the vibratory gyroscope is then provided sometimes tainted with errors that are related to the first vibration position, sometimes tainted with errors that are related to the second vibration position.
- No limitation is attached to the number of vibration positions in which the vibrating gyroscope is to be configured.
- steps / a / to Here may be advantageously repeated so as to obtain relevant and consistent angle measurement values according to one embodiment of the present invention.
- the gyroscopic system can provide the following angle values:
- a change of vibration position of the first angle measuring means according to steps / a / to Here can then be repeated several times successively.
- the vibratory gyroscope can vibrate in a number K of successive vibration positions, such a change of vibration position makes it possible to go from a vibration position i to a vibration position i + 1, for all i between 1 and K-1.
- the first vibration position of the step / a / corresponds to the vibration position in which the vibrating gyroscope vibrates at the last step Here performed and the second vibration position corresponds to the next vibration position in the plurality of vibration positions considered.
- the gyroscopic system may comprise an N number of vibrating gyroscopes, where N is an integer greater than or equal to 3.
- the N gyroscopes are adapted to change vibration positions among a plurality of vibration positions, and to provide respective measurements of angle values according to respective measuring axes in respective vibration positions of said plurality of vibration positions.
- the first measuring means can then correspond to any of the N vibrating gyroscopes; and the second measuring means may correspond to any one of the N-1 gyroscopes of the system and is adapted to provide an angle measurement along the measurement axis of the first measurement means and relative to the second reference. from scratch.
- the three vibrating gyroscopes may have respective coplanar and nonlinear measurement axes in pairs.
- first doublet of different linear combinations for determining angle values along a first measurement axis
- second doublet of different linear combinations for determining angle values following a second one. measuring axis.
- the measurement method according to one embodiment of the present invention can then be applied for each of the doublets of linear combinations.
- At least two of the measurement axes may also be substantially perpendicular.
- the three gyroscopes may be located in the same plane so that the respective measurement axes form between them an angle substantially equal to 120 °.
- the four gyroscopes may be located in the space such that their respective measurement axes are oriented along the four spacers.
- the four vibrating gyroscopes may have non-coplanar measurement axes three to three and non-collinear two by two.
- first doublet of different linear combinations making it possible to determine angle values along a first measurement axis
- second doublet of different linear combinations making it possible to determine angle values along a second measurement axis
- third doublet of different linear combinations for determining angle values along a third measurement axis. It is then possible to apply steps of the measurement method according to one embodiment of the present invention for each of the doublets of linear combinations.
- the vibration positions of the plurality of vibration positions can also be successively separated from an angle value corresponding to 360 degrees divided by an integer.
- the vibration positions of the plurality of vibration positions can be determined to distribute the vibration positions used between 0 and 2 ⁇ radians.
- the doublets of linear combinations between their four measures respectively denoted a, b, c and d, used to reconstruct three substantially perpendicular measuring axes are the following: for a first measurement axis x: a + b and - (c + d); for a second measurement axis y: b + c and - (a + d); and for a third measurement axis z: a + c and - (b + d)
- Vibration position change controls can be performed successively on each of the vibrating gyroscopes.
- the vibration positions of the plurality of vibration positions may successively be separated by an angle value corresponding to 360 degrees divided by an integer.
- a second aspect of the present invention provides a gyro measurement system adapted for implementing a method according to the first aspect of the present invention. It includes at least: a vibrating gyroscope, as the first angle measuring means, adapted to change vibration position among a plurality of vibration positions, and to provide a first measurement of angle values along a measurement axis in the one of the vibration positions of said plurality of vibration positions, said first measurement means having a first reference of zero and providing first values; and
- second angle measuring means adapted to provide a second measurement of angle values along said measurement axis, said second measurement having a second zero reference as an angle value and providing second values; said gyro system further comprising:
- a second angle value correcting unit adapted to provide corrected second values by adapting the second zero reference based on a comparison of first and second angle values obtained over a period of time;
- a first angle correction unit adapted to provide first corrected values by adapting the first zero reference based on a comparison of first and second angle values obtained over another time period; said first and second value correction units being implemented during a change of vibration position of at least the first angle measuring means.
- the angle values may advantageously be alternatively provided by the first angle measuring means and the second angle measuring means upon a change of vibration position of the first angle measuring means.
- FIG. 1 illustrates the main steps of a measurement method by a gyroscopic system according to an embodiment of the present invention
- FIG. 2 illustrates the evolution of the measurement values provided by a gyroscopic system according to one embodiment of the present invention
- FIG. 3 illustrates a gyroscopic system according to an embodiment of the present invention.
- Figure 1 illustrates the main steps of a measurement method by a gyroscopic system according to an embodiment of the present invention.
- both the first and second angle measuring means provide values, respectively first and second angle values. On the basis of these two types of angle values, it is then possible to correct the second angle values, and the corresponding zero reference, so as to make them consistent with the first angle values relative to the associated zero reference.
- step 13 again, both the first and second angle values are taken into account so that the first supplied angle values provided by the first vibrating measuring means in the vibration controlled during his last change.
- Figure 2 illustrates the evolution of measurement values provided by a gyroscopic system according to an embodiment of the present invention.
- the variation of the angle values is described as a function of time over the steps of the measurement process.
- the angle values are provided by the first measurement means.
- the angle values provided by the first measuring means and those provided by the second measuring means are taken into account to obtain second corrected angle values provided from the values provided by the second measuring means.
- This period therefore corresponds to a recovery period which is used for the consistency of the angle values provided by the system over time.
- Figure 3 illustrates a gyroscopic measurement system according to an embodiment of the present invention.
- This system includes:
- second angle measuring means 32 which provides second values
- a second angle correction unit 34 adapted to provide corrected second values by adapting the second zero reference based on a comparison of first and second angle values obtained over a period of time;
- a unit for correcting the first angle values 33 adapted to provide first corrected values by adapting the first reference of zero on the basis of a comparison of first and second angle values obtained over another period of time.
- the correction units of the first and second values are implemented during a change of vibration position of at least the first angle measuring means.
- the plurality of vibration positions of the vibrating gyroscope can correspond to K different positions.
- the integer K can be chosen to achieve optimum efficiency. It should be noted here that the improvement in the performance obtained by averaging errors attached to the different vibration positions by applying the measurement method according to one embodiment, can correspond to a loss of precision associated with the division of the overall measurement time into several measurement periods related to the changes of vibration positions successively on the K vibration positions.
- the gyroscopic measurement system may comprise a number N of vibrating gyroscopes, N being an integer greater than or equal to 3; the N gyroscopes being adapted to change vibration position among a plurality of vibration positions, and to provide respective measurements of angle values along respective measurement axes in respective vibration positions of said plurality of vibration positions.
- the first measuring means may correspond to any one of the N vibrating gyroscopes
- the second measuring means corresponds to any of the N-1 gyroscopes of the system, adapted to provide a plurality of gyroscopes. angle measurement along the measurement axis of the first measuring means and relative to the second reference of zero.
- the three vibrating gyroscopes may have respective coplanar and nonlinear measurement axes in pairs.
- the three gyroscopes may be located in the same plane so that the respective measurement axes form between them an angle substantially equal to 120 °.
- the four gyroscopes may be located in the space so that their respective measurement axes are oriented along the four spacers of the space.
- the four vibrating gyroscopes may have non-coplanar measurement axes three to three and non-collinear two by two.
- the second measuring means comprises a plurality of vibrating gyroscopes in which at least one vibratory gyroscope is adapted to change the vibration position, and to provide a measurement of the vibration values. 'angle.
- the angle measurement provided by this at least one vibrating gyroscope can then be a linear combination of the angle values provided by the other gyroscopes of the second angle measuring means to correspond to the second measurement of the next angle values. the desired measurement axis.
- the second measuring means may also consist of vibrating gyroscopes, each adapted to change the vibration position.
- the first measuring means is a vibrating gyroscope and the second measuring means is also a vibrating gyroscope, it can be provided that the two vibrating gyroscopes have their collinear measuring axes.
- a gyroscopic system comprising at least four non-collinear gyroscopes, to use measurements provided by three of these four gyroscopes while the fourth vibratory gyroscope is calibrated.
- the calibration step includes the vibration position change of the vibrating gyroscope during calibration.
- the measurements provided by the at least three other vibrating gyroscopes are used to provide the orientation reference. More precisely, the calibration operation consists in placing the vibration in various positions and in detecting the corresponding measurement of the vibrating gyroscope to be calibrated. It is then sufficient to subtract from these measurements the actual rotation of the carrier measured by the other three gyroscopes.
- This operation is then successively repeated for all the vibrating gyroscopes of the system according to one embodiment of the present invention.
- the difference D between the measurement of the gyroscope during calibration and that of the second measurement means which comprises the other three vibrating gyroscopes is calculated. This calculation of D is performed during the period when a vibrating position change control is applied to the vibrating gyroscope to be calibrated.
- This calculation is also performed during the period when the vibration is left in a given position.
- the vibration position can be divided into k positions and the value of D is recorded for each of these k positions.
- the measurement error of the gyroscope is available as a function of the position of the vibration, which makes it possible to update a harmonic model of error drift.
- This procedure makes it possible to always use the same 3 gyroscopes for the navigation, the corrections being introduced by means of the update of the corresponding error model, and thus to avoid transient transients on the gyroscopes used to navigate. .
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08868533A EP2225534B1 (fr) | 2007-12-21 | 2008-12-19 | Procede de mesure par systeme gyroscopique |
AT08868533T ATE526556T1 (de) | 2007-12-21 | 2008-12-19 | Messverfahren mithilfe eines gyroskopischen systems |
JP2010538781A JP5469610B2 (ja) | 2007-12-21 | 2008-12-19 | ジャイロスコープシステムによる測定方法 |
RU2010130301/28A RU2476823C2 (ru) | 2007-12-21 | 2008-12-19 | Способ измерения при помощи гироскопической системы |
UAA201007798A UA100872C2 (ru) | 2007-12-21 | 2008-12-19 | Способ измерения гироскопической системой |
CN2008801263774A CN101932908B (zh) | 2007-12-21 | 2008-12-19 | 由陀螺系统执行的测量方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0760314 | 2007-12-21 | ||
FR0760314A FR2925669B1 (fr) | 2007-12-21 | 2007-12-21 | Mesure par systeme gyroscopique |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009083519A1 true WO2009083519A1 (fr) | 2009-07-09 |
Family
ID=39730625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/068123 WO2009083519A1 (fr) | 2007-12-21 | 2008-12-19 | Procede de mesure par systeme gyroscopique |
Country Status (9)
Country | Link |
---|---|
US (1) | US7997134B2 (fr) |
EP (1) | EP2225534B1 (fr) |
JP (1) | JP5469610B2 (fr) |
CN (1) | CN101932908B (fr) |
AT (1) | ATE526556T1 (fr) |
FR (1) | FR2925669B1 (fr) |
RU (1) | RU2476823C2 (fr) |
UA (1) | UA100872C2 (fr) |
WO (1) | WO2009083519A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010060993A1 (fr) * | 2008-11-28 | 2010-06-03 | Sagem Defense Securite | Etalonnage d'un gyroscope vibrant |
US9103672B2 (en) | 2010-04-16 | 2015-08-11 | Sagem Defense Sécurité | Gyroscopic measurement by a gyroscope vibrating in precession |
EP2359092B1 (fr) * | 2008-11-28 | 2018-10-31 | Safran Electronics & Defense | Étalonnage de systèmes gyroscopiques dotés de gyroscopes vibrants |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008057281A1 (de) * | 2008-11-14 | 2010-05-20 | Northrop Grumman Litef Gmbh | Simulationsverfahren für das Betriebsverhalten eines Corioliskreisels |
FR2953588B1 (fr) * | 2009-12-07 | 2011-12-23 | Sagem Defense Securite | Procede de determination d'un cap par rotation d'un dispositif inertiel |
FR2998663B1 (fr) * | 2012-11-28 | 2014-11-21 | Sagem Defense Securite | Procede de calibration d'une centrale inertielle a plage de retournement mecanique limitee |
US10228264B2 (en) | 2016-09-02 | 2019-03-12 | Northrop Grumman Systems Corporation | Self-calibration of an inertial system |
US10584967B2 (en) | 2016-10-18 | 2020-03-10 | Northrop Grumman Systems Corporation | Hemispherical resonator gyroscope |
US11073393B2 (en) | 2019-01-16 | 2021-07-27 | Northrop Grumman Systems Corporation | Coriolis vibratory gyroscope control system |
US11073391B2 (en) | 2019-09-26 | 2021-07-27 | Northrop Grumman Systems Corporation | Coriolis vibratory accelerometer system |
CN113063442B (zh) * | 2021-03-17 | 2024-06-07 | 深圳市云鼠科技开发有限公司 | 扫地机器人陀螺仪标定方法、装置、计算机设备及存储器 |
JP7441195B2 (ja) * | 2021-04-13 | 2024-02-29 | 株式会社東芝 | センサ及び電子装置 |
JP2023528115A (ja) * | 2021-04-29 | 2023-07-04 | 国志 蔡 | 角度計算システム及びその方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2804754A1 (fr) * | 1999-11-05 | 2001-08-10 | Litton Systems Inc | Capteur vibrant avec auto-etalonnage et conversion numerique a faible bruit |
EP1571417A2 (fr) * | 2004-03-03 | 2005-09-07 | Northrop Grumman Corporation | Dispositif à lame vibrante oscillant dans une première direction pendant une première période et dans une deuxième direction pendant une deuxième période pour détecter la vitesse angulaire de la lame vibrante |
EP1752733A2 (fr) * | 2005-08-08 | 2007-02-14 | Litton Systems, Inc. | Réduction d'erreurs de polarisation et de quadrature dans des gyroscopes vibratoires à effet Coriolis de classe II |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0854932A (ja) * | 1994-08-08 | 1996-02-27 | Mitsubishi Electric Corp | 空間安定化装置 |
JPH08178687A (ja) * | 1994-12-26 | 1996-07-12 | Pioneer Electron Corp | 姿勢検出方法及び装置 |
US6367326B1 (en) * | 1996-07-10 | 2002-04-09 | Wacoh Corporation | Angular velocity sensor |
FR2755227B1 (fr) | 1996-10-31 | 1998-12-31 | Sagem | Appareil de mesure de rotation a resonateur mecanique vibrant |
CN1089160C (zh) * | 1998-08-07 | 2002-08-14 | 清华大学 | 一种应用微型惯性测量组合进行三维位置测量的方法 |
JP2002213959A (ja) * | 2001-01-23 | 2002-07-31 | Denso Corp | 角速度検出装置および車両用ナビゲーション装置 |
GB2377494B (en) * | 2001-07-09 | 2004-07-28 | Autoliv Dev | "Improvements in or relating to an off-set elimination system for a vibrating gyroscope" |
RU2207510C2 (ru) * | 2001-07-19 | 2003-06-27 | Федеральное государственное унитарное предприятие "Ижевский электромеханический завод "Купол" | Твердотельный волновой гироскоп |
US6701786B2 (en) * | 2002-04-29 | 2004-03-09 | L-3 Communications Corporation | Closed loop analog gyro rate sensor |
JP2004045286A (ja) * | 2002-07-12 | 2004-02-12 | Denso Corp | レゾルバ補正方法 |
JP2005221284A (ja) * | 2004-02-04 | 2005-08-18 | Sumitomo Precision Prod Co Ltd | 自動車用角速度または自動車用角度センサの制御方法 |
US7464590B1 (en) * | 2004-03-12 | 2008-12-16 | Thomson Licensing | Digitally programmable bandwidth for vibratory rate gyroscope |
JP2006084455A (ja) * | 2004-08-17 | 2006-03-30 | Seiko Epson Corp | 角速度センサ検査装置 |
JP2006105598A (ja) * | 2004-09-30 | 2006-04-20 | Honda Motor Co Ltd | 加速度・角速度センサユニット |
RU2307325C1 (ru) * | 2006-04-14 | 2007-09-27 | ФГУП НИИ "Полюс" им. М.Ф. Стельмаха" | Способ определения угловой скорости лазерного гироскопа и систем на его основе |
JP4285548B2 (ja) * | 2007-02-05 | 2009-06-24 | エプソントヨコム株式会社 | ジャイロセンサモジュールおよび角速度検出方法 |
-
2007
- 2007-12-21 FR FR0760314A patent/FR2925669B1/fr not_active Expired - Fee Related
-
2008
- 2008-04-10 US US12/100,832 patent/US7997134B2/en active Active
- 2008-12-19 AT AT08868533T patent/ATE526556T1/de not_active IP Right Cessation
- 2008-12-19 EP EP08868533A patent/EP2225534B1/fr active Active
- 2008-12-19 WO PCT/EP2008/068123 patent/WO2009083519A1/fr active Application Filing
- 2008-12-19 UA UAA201007798A patent/UA100872C2/ru unknown
- 2008-12-19 JP JP2010538781A patent/JP5469610B2/ja active Active
- 2008-12-19 RU RU2010130301/28A patent/RU2476823C2/ru active
- 2008-12-19 CN CN2008801263774A patent/CN101932908B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2804754A1 (fr) * | 1999-11-05 | 2001-08-10 | Litton Systems Inc | Capteur vibrant avec auto-etalonnage et conversion numerique a faible bruit |
EP1571417A2 (fr) * | 2004-03-03 | 2005-09-07 | Northrop Grumman Corporation | Dispositif à lame vibrante oscillant dans une première direction pendant une première période et dans une deuxième direction pendant une deuxième période pour détecter la vitesse angulaire de la lame vibrante |
EP1752733A2 (fr) * | 2005-08-08 | 2007-02-14 | Litton Systems, Inc. | Réduction d'erreurs de polarisation et de quadrature dans des gyroscopes vibratoires à effet Coriolis de classe II |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010060993A1 (fr) * | 2008-11-28 | 2010-06-03 | Sagem Defense Securite | Etalonnage d'un gyroscope vibrant |
FR2939193A1 (fr) * | 2008-11-28 | 2010-06-04 | Sagem Defense Securite | Calibrage de gyroscope vibrant |
US8424363B2 (en) | 2008-11-28 | 2013-04-23 | Sagem Defense Securite | Calibration of vibratory gyroscope |
EP2359092B1 (fr) * | 2008-11-28 | 2018-10-31 | Safran Electronics & Defense | Étalonnage de systèmes gyroscopiques dotés de gyroscopes vibrants |
US9103672B2 (en) | 2010-04-16 | 2015-08-11 | Sagem Defense Sécurité | Gyroscopic measurement by a gyroscope vibrating in precession |
Also Published As
Publication number | Publication date |
---|---|
EP2225534B1 (fr) | 2011-09-28 |
FR2925669A1 (fr) | 2009-06-26 |
EP2225534A1 (fr) | 2010-09-08 |
JP5469610B2 (ja) | 2014-04-16 |
UA100872C2 (ru) | 2013-02-11 |
ATE526556T1 (de) | 2011-10-15 |
FR2925669B1 (fr) | 2010-01-15 |
CN101932908A (zh) | 2010-12-29 |
RU2476823C2 (ru) | 2013-02-27 |
RU2010130301A (ru) | 2012-03-20 |
CN101932908B (zh) | 2013-08-14 |
US20090158846A1 (en) | 2009-06-25 |
US7997134B2 (en) | 2011-08-16 |
JP2011506991A (ja) | 2011-03-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2225534B1 (fr) | Procede de mesure par systeme gyroscopique | |
FR2939193A1 (fr) | Calibrage de gyroscope vibrant | |
FR2939192A1 (fr) | Calibrage de systemes gyroscopiques a gyroscopes vibrants | |
EP2181305B1 (fr) | Procede de determination d'une vitesse de rotation d'un capteur vibrant axisymetrique, et dispositif inertiel mettant en oeuvre le procede | |
EP2338027B1 (fr) | Mesure gyroscopique par un gyroscope vibrant | |
EP2558819B1 (fr) | Mesure gyroscopique dans un systeme de navigation | |
EP2573515B1 (fr) | Étalonnage de gyroscope vibrant | |
EP2938965B1 (fr) | Procede de comparaison de deux centrales inertielles solidaires d'un meme porteur | |
EP2361368A1 (fr) | Procede de determination d'un cap en direction du nord geographique au moyen d'une centrale inertielle | |
FR2953588A1 (fr) | Procede de determination d'un cap par rotation d'un dispositif inertiel | |
EP2667155B1 (fr) | Centrale inertielle à gyroscopes vibrants montés sur un carrousel et procédé de mesure angulaire | |
EP2558820B1 (fr) | Mesure gyroscopique par un gyroscope vibrant en precession | |
WO2011047822A1 (fr) | Procede et dispositif de navigation longue duree | |
EP2368088B1 (fr) | Procede de determination d'une vitesse de rotation d'un capteur vibrant axisymetrique, et dispositif inertiel mettant en oeuvre le procede | |
WO2014082937A1 (fr) | Procede de calibration d'une centrale inertielle a plage de retournement mecanique limitee | |
EP2522956B1 (fr) | Procédé de gestion automatique d'un gyromètre longitudinal monté sur un engin volant | |
FR2965345A1 (fr) | Centrale inertielle a gyroscopes orientables et procede de mesure angulaire | |
EP3884238A1 (fr) | Dispositif de mesure inertielle | |
WO2023036825A1 (fr) | Dispositif de mesure des erreurs angulaires d'inclinaison d'un axe réel de rotation d'un élément rotatif et procédé | |
EP4425107A1 (fr) | Procede d optimisation d'un capteur de position angulaire magnetique |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200880126377.4 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08868533 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010538781 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1316/MUMNP/2010 Country of ref document: IN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008868533 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010130301 Country of ref document: RU Ref document number: A201007798 Country of ref document: UA |