WO1998023917A1 - Drehratensensor - Google Patents
Drehratensensor Download PDFInfo
- Publication number
- WO1998023917A1 WO1998023917A1 PCT/DE1997/002671 DE9702671W WO9823917A1 WO 1998023917 A1 WO1998023917 A1 WO 1998023917A1 DE 9702671 W DE9702671 W DE 9702671W WO 9823917 A1 WO9823917 A1 WO 9823917A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ring
- rate sensor
- rotation rate
- electrodes
- sensor according
- 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
-
- 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
- G01C19/5705—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using masses driven in reciprocating rotary motion about an axis
- G01C19/5712—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using masses driven in reciprocating rotary motion about an axis the devices involving a micromechanical structure
Definitions
- the present invention relates to a rotation rate sensor as a micromechanical component in silicon.
- Rotation rate sensors are used to measure angular velocities.
- Mechanical gyroscopes function in the same way as a gyrocompass and measure the rotational movements that occur due to a precession movement of a rotating body.
- a rotational movement occurs about a straight line that is perpendicular to these other two axes of rotation.
- the strength of the torque causing this rotation is a measure of the rotational movement of the overall system.
- the free rotation of the gyroscope can be replaced by an oscillating rotational movement.
- the micromechanical rotation rate sensor according to the invention has an annular structure with a relatively thick strut, which is arranged along a diameter of this ring.
- this ring with the strut looks like a spoke wheel from which all spokes except for two spokes lying on the same straight line have been removed.
- This rectilinear double spoke complementing the ring which is referred to in the following and in the claims as a strut, also serves to fasten the ring to a substrate, which is preferably silicon.
- the ring must around its central axis, i. H. the axis running through the center of the ring, which is perpendicular to the ring plane, can be set in oscillating rotary movements.
- this tilting is provided about an axis which runs parallel to the position of the strut in the rest position of the ring.
- This rotation rate sensor thus detects a rotary movement that takes place about an axis that is perpendicular to the central axis of the ring and the axis of the strut in the rest position of the ring.
- resilient suspension of the ring required for this is achieved by resilient struts which are attached on the one hand to the strut and on the other hand to anchors attached to the substrate. These will preferably spring p- N ⁇ > r rt Di Di ⁇ rt tr Di u ⁇ ⁇ o sS ⁇ 0 P PJ ö CQ D ⁇ a P 0 Mi ⁇ 0 CQ Di Qi
- Level of the ring are present, for. B. a configuration of the electrodes on the ring and on the substrate each with a comb-like structure advantageous.
- the counter electrodes attached to the substrate are arranged above or below the ring plane, it is advantageous if the counter electrodes are attached in pairs at the same distance above and below the ring.
- corresponding counterelectrodes are drawn above the ring as drive electrodes over the lateral approaches of the ring 1, which are located in the extension of the strut 11 shown.
- a total of 4 electrodes are attached to the substrate as drive electrodes for each drive structure.
- One of these electrodes is attached above and below the ring plane and laterally offset in the two directions of rotation.
- additional control electrodes c, d can be used to ensure that the rotor is stabilized in the middle position by the applied electrostatic forces.
- the exact position of the rotor is determined via a capacitive differential measurement, which is known per se, on the pairs of electrodes formed by the respective electrode attached to the ring and in each case by a pair of electrodes arranged above or below the ring plane arranged on the substrate.
- This additional stabilization with which tilting of the ring from the rotating plane can also be prevented, can also be provided in the embodiment with drive electrodes structured in a comb-like manner.
- the ring is attached to resilient struts 10, which are attached to the strut 11, to anchoring elements attached to the substrate.
- tt P > P 1 in o in o in o in
- P 0 P 1 D- tQ 0 D. P 0 0 P- i O 0 H ⁇ P- ⁇ CQ • 0 0 0 3 D & 0 P
- ⁇ o PJ ⁇ ⁇ 0 P 1 D- P Di CQ P- rt er 3 tr ⁇ ⁇ - PP 1 PJ ⁇ D 0 ⁇ to ⁇ tr P 0 0 P- tr PP "P- to 0 O rt 0 rt P P- P- 0 0 Ml o 0 H> ü ⁇ Pf • ⁇ ⁇ ->
- ⁇ PJ P- 0 Di 0 PJ ⁇ P- PZ to P- PJ tr et tr ⁇ tr CD Di ⁇ ⁇ tQ ⁇ P 0 ⁇ N Mi P- 0 ⁇ «3 P ⁇ ⁇ O ⁇ ⁇ ⁇ 0 3 0 PJ rt P ⁇ 0 P- f P ⁇
- Pf • "P- 0 ⁇ PN to ⁇ tQ P tr CO ⁇ ⁇ PN tQ to 0 Di tr ⁇ ⁇ rt ⁇ Z ⁇ P tr rt • tr ⁇ o ⁇ 3 0 0 3 p- 0 • ⁇ ⁇ ⁇ ⁇
- Di 0 0 3 ⁇ rt tr ⁇ tr CD ⁇ P " ⁇ N P- Di ⁇ 0 0 0 0> ⁇ ⁇ rt 0
- P PJ Pf P- P- Z Qm ⁇ - CD 0 3 er • ⁇ 0 tQ i J ⁇ Z 0 Di ⁇ - rt rt X ⁇ ⁇ 0- P- t ⁇ o * Ü rt rt Hi CD 0 3 & Pf P 1 ö ⁇ 0 Hl Mi ⁇ P- tQ ⁇ tr
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97949923A EP0939883A1 (de) | 1996-11-22 | 1997-11-14 | Drehratensensor |
US09/308,730 US6094985A (en) | 1996-11-22 | 1997-11-14 | Rotation rate sensor |
JP52412898A JP2001504587A (ja) | 1996-11-22 | 1997-11-14 | 回転速度センサ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19648425.1 | 1996-11-22 | ||
DE19648425A DE19648425C1 (de) | 1996-11-22 | 1996-11-22 | Drehratensensor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998023917A1 true WO1998023917A1 (de) | 1998-06-04 |
Family
ID=7812488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1997/002671 WO1998023917A1 (de) | 1996-11-22 | 1997-11-14 | Drehratensensor |
Country Status (7)
Country | Link |
---|---|
US (1) | US6094985A (de) |
EP (1) | EP0939883A1 (de) |
JP (1) | JP2001504587A (de) |
KR (1) | KR20000057194A (de) |
CN (1) | CN1286751A (de) |
DE (1) | DE19648425C1 (de) |
WO (1) | WO1998023917A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000180177A (ja) * | 1998-12-15 | 2000-06-30 | Mitsumi Electric Co Ltd | 回転振動型ジャイロ |
DE19949611B4 (de) * | 1999-10-14 | 2007-05-31 | Infineon Technologies Ag | Drehratensensor |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19937747C2 (de) * | 1999-08-10 | 2001-10-31 | Siemens Ag | Mechanischer Resonator für Rotationssensor |
DE19940581C2 (de) * | 1999-08-26 | 2001-07-26 | Infineon Technologies Ag | Verfahren zur Herstellung integrierter Sensoren |
DE19950061A1 (de) * | 1999-10-16 | 2001-04-19 | Bosch Gmbh Robert | Sensorelement, insbesondere Drehratensensor |
US7994877B1 (en) | 2008-11-10 | 2011-08-09 | Hrl Laboratories, Llc | MEMS-based quartz hybrid filters and a method of making the same |
US7581443B2 (en) * | 2005-07-20 | 2009-09-01 | The Boeing Company | Disc resonator gyroscopes |
US8766745B1 (en) | 2007-07-25 | 2014-07-01 | Hrl Laboratories, Llc | Quartz-based disk resonator gyro with ultra-thin conductive outer electrodes and method of making same |
FR2856789B1 (fr) * | 2003-06-27 | 2005-08-26 | Thales Sa | Gyrometre a masse vibrante |
EP1735590B1 (de) * | 2004-04-14 | 2013-11-27 | Analog Devices, Inc. | Koppelvorrichtung für trägheitssensoren |
US7832271B2 (en) * | 2005-05-24 | 2010-11-16 | Japan Aerospace Exploration Agency | Gyroscope |
US8272616B2 (en) * | 2006-08-04 | 2012-09-25 | Tjm Design Corporation | Rotation mechanism for laser emitter |
US7555824B2 (en) | 2006-08-09 | 2009-07-07 | Hrl Laboratories, Llc | Method for large scale integration of quartz-based devices |
DE102007030120B4 (de) | 2007-06-29 | 2010-04-08 | Litef Gmbh | Drehratensensor |
US10266398B1 (en) | 2007-07-25 | 2019-04-23 | Hrl Laboratories, Llc | ALD metal coatings for high Q MEMS structures |
DE102007035806B4 (de) * | 2007-07-31 | 2011-03-17 | Sensordynamics Ag | Mikromechanischer Drehratensensor |
US8151640B1 (en) | 2008-02-05 | 2012-04-10 | Hrl Laboratories, Llc | MEMS on-chip inertial navigation system with error correction |
US7802356B1 (en) | 2008-02-21 | 2010-09-28 | Hrl Laboratories, Llc | Method of fabricating an ultra thin quartz resonator component |
US8176607B1 (en) | 2009-10-08 | 2012-05-15 | Hrl Laboratories, Llc | Method of fabricating quartz resonators |
US8912711B1 (en) | 2010-06-22 | 2014-12-16 | Hrl Laboratories, Llc | Thermal stress resistant resonator, and a method for fabricating same |
EP2865990A4 (de) * | 2012-06-22 | 2016-03-16 | Nat Inst Of Advanced Ind Scien | Vorrichtung zur messung einer drehwinkelbeschleunigung |
US9250074B1 (en) | 2013-04-12 | 2016-02-02 | Hrl Laboratories, Llc | Resonator assembly comprising a silicon resonator and a quartz resonator |
US9599470B1 (en) | 2013-09-11 | 2017-03-21 | Hrl Laboratories, Llc | Dielectric high Q MEMS shell gyroscope structure |
US9977097B1 (en) | 2014-02-21 | 2018-05-22 | Hrl Laboratories, Llc | Micro-scale piezoelectric resonating magnetometer |
US9991863B1 (en) | 2014-04-08 | 2018-06-05 | Hrl Laboratories, Llc | Rounded and curved integrated tethers for quartz resonators |
US10308505B1 (en) | 2014-08-11 | 2019-06-04 | Hrl Laboratories, Llc | Method and apparatus for the monolithic encapsulation of a micro-scale inertial navigation sensor suite |
US10031191B1 (en) | 2015-01-16 | 2018-07-24 | Hrl Laboratories, Llc | Piezoelectric magnetometer capable of sensing a magnetic field in multiple vectors |
US10110198B1 (en) | 2015-12-17 | 2018-10-23 | Hrl Laboratories, Llc | Integrated quartz MEMS tuning fork resonator/oscillator |
US10175307B1 (en) | 2016-01-15 | 2019-01-08 | Hrl Laboratories, Llc | FM demodulation system for quartz MEMS magnetometer |
US11237000B1 (en) | 2018-05-09 | 2022-02-01 | Hrl Laboratories, Llc | Disk resonator gyroscope with out-of-plane electrodes |
CN109059998B (zh) * | 2018-08-16 | 2020-11-06 | 湖南袁禾农业科技有限公司 | 一种测定辐射波源闪烁频率的装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996035957A1 (en) * | 1995-05-12 | 1996-11-14 | The Charles Stark Draper Laboratory, Inc. | Gimballed vibrating wheel gyroscope having strain relief features |
DE19523895A1 (de) * | 1995-06-30 | 1997-01-02 | Bosch Gmbh Robert | Beschleunigungssensor |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0461761B1 (de) * | 1990-05-18 | 1994-06-22 | British Aerospace Public Limited Company | Trägheitssensoren |
US5377544A (en) * | 1991-12-19 | 1995-01-03 | Motorola, Inc. | Rotational vibration gyroscope |
US5313835A (en) * | 1991-12-19 | 1994-05-24 | Motorola, Inc. | Integrated monolithic gyroscopes/accelerometers with logic circuits |
-
1996
- 1996-11-22 DE DE19648425A patent/DE19648425C1/de not_active Expired - Fee Related
-
1997
- 1997-11-14 JP JP52412898A patent/JP2001504587A/ja active Pending
- 1997-11-14 WO PCT/DE1997/002671 patent/WO1998023917A1/de not_active Application Discontinuation
- 1997-11-14 US US09/308,730 patent/US6094985A/en not_active Expired - Lifetime
- 1997-11-14 CN CN97199993A patent/CN1286751A/zh active Pending
- 1997-11-14 KR KR1019990704513A patent/KR20000057194A/ko active IP Right Grant
- 1997-11-14 EP EP97949923A patent/EP0939883A1/de not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996035957A1 (en) * | 1995-05-12 | 1996-11-14 | The Charles Stark Draper Laboratory, Inc. | Gimballed vibrating wheel gyroscope having strain relief features |
DE19523895A1 (de) * | 1995-06-30 | 1997-01-02 | Bosch Gmbh Robert | Beschleunigungssensor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000180177A (ja) * | 1998-12-15 | 2000-06-30 | Mitsumi Electric Co Ltd | 回転振動型ジャイロ |
DE19949611B4 (de) * | 1999-10-14 | 2007-05-31 | Infineon Technologies Ag | Drehratensensor |
Also Published As
Publication number | Publication date |
---|---|
US6094985A (en) | 2000-08-01 |
CN1286751A (zh) | 2001-03-07 |
DE19648425C1 (de) | 1998-01-02 |
EP0939883A1 (de) | 1999-09-08 |
KR20000057194A (ko) | 2000-09-15 |
JP2001504587A (ja) | 2001-04-03 |
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