JP2015513095A - 振動リング構造 - Google Patents
振動リング構造 Download PDFInfo
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- JP2015513095A JP2015513095A JP2014561507A JP2014561507A JP2015513095A JP 2015513095 A JP2015513095 A JP 2015513095A JP 2014561507 A JP2014561507 A JP 2014561507A JP 2014561507 A JP2014561507 A JP 2014561507A JP 2015513095 A JP2015513095 A JP 2015513095A
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- fine adjustment
- ring structure
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- 238000000034 method Methods 0.000 claims abstract description 40
- 230000007935 neutral effect Effects 0.000 claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000000608 laser ablation Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 230000004044 response Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005602 coriolis coupling Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011089 mechanical engineering Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
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Classifications
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- 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
- G01C19/5677—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 of essentially two-dimensional vibrators, e.g. ring-shaped vibrators
- G01C19/5684—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 of essentially two-dimensional vibrators, e.g. ring-shaped vibrators the devices involving a micromechanical structure
-
- 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
- G01C19/5677—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 of essentially two-dimensional vibrators, e.g. ring-shaped vibrators
-
- 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
- G01C19/5776—Signal processing not specific to any of the devices covered by groups G01C19/5607 - G01C19/5719
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Signal Processing (AREA)
- Gyroscopes (AREA)
- Pressure Sensors (AREA)
Abstract
Description
既存の機器が、レーザパワーを動的に調節することが不可能かもしれない、
レーザスポットサイズが、既存の機器で調節可能でないかもしれない、
レーザが、与えられた作動条件まで安定するのに時間を必要とするかもしれない、
質量除去が、レーザパワーとともに直線的に変化しないかもしれない、
振動数間隔のわずかな調節(例えば、<0.1Hz)が、正確性をもって達成するのが困難かもしれない、
という理由によって実際的でない。
ΔFsplit=2.ΔFhole・cos(2.ε2) (1)
によって与えられ、ここでΔFholeは、波腹12における孔のうちの1つの形成により得られるであろう振動数間隔の名目上の変化である。
Claims (16)
- 振動リング構造を調整する方法であって、
振動リング構造の中立軸上または近辺に配置された、実質的に同一の大きさの一対の微調整孔について角度間隔を決定し、
決定された角度間隔で振動リング構造内に一対の微調整孔を形成する、
ことを含み、
角度の偏りは、目標の通常モードと、目標の通常モードに対して角度的に偏るさらなる通常モードとの間の振動数間隔を、許容可能なレベルまで減少させるように選択されることを特徴とする、振動リング構造を調整する方法。 - 一対の微調整孔は、目標の通常モードの半径方向の波腹から実質的に等しい角度の偏りで配置されることを特徴とする請求項1記載の方法。
- 一対の微調整孔は、目標の通常モードの半径方向の波腹周りに実質的に対称的に形成されることを特徴とする請求項2記載の方法。
- 微調整孔の間の角度の偏りは、45度未満であることを特徴とする請求項1〜3のいずれかに記載の方法。
- 少なくとも1つの粗調整孔の形成をさらに含むことを特徴とする請求項1〜4のいずれかに記載の方法。
- 粗調整孔は、微調整孔と実質的に同一の大きさであることを特徴とする請求項5記載の方法。
- 調整孔は、レーザアブレーションによって形成されることを特徴とする請求項1〜6のいずれかに記載の方法。
- 微調整孔は、cos2θモードのバランスを達成するように配置されることを特徴とする請求項1〜7のいずれかに記載の方法。
- 請求項1〜8のいずれかに記載の方法を用いて調整された振動リング構造。
- 振動リング構造であって、
リング本体の中立軸上または近辺に配置された、実質的に同一の大きさの一対の微調整孔の形成によって調整されたリング本体を備え、
微調整孔は、リング本体の目標の通常モードとさらなる通常モードとの間の振動数間隔を、許容可能なレベルまで減少させるように選択された、互いに対する角度の偏りで配置され、
さらなる通常モードは、目標の通常モードに対して角度的に偏ることを特徴とする振動リング構造。 - 一対の微調整孔は、目標の通常モードの半径方向の波腹から実質的に等しい角度の偏りで配置されることを特徴とする請求項10記載の構造。
- 一対の微調整孔は、目標の通常モードの半径方向の波腹周りに実質的に対称的に形成されることを特徴とする請求項11記載の構造。
- 少なくとも1つの粗調整孔をさらに備えることを特徴とする請求項10〜12に記載の構造。
- 粗調整孔は、微調整孔と実質的に同一の大きさであることを特徴とする請求項13記載の構造。
- 微調整孔は、cos2θモードのバランスを達成するように配置されることを特徴とする請求項10〜14のいずれかに記載の構造。
- リング本体は、ジャイロスコープの一部を形成することを特徴とする請求項10〜15のいずれかに記載の構造。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1204355.0 | 2012-03-13 | ||
GB201204355A GB201204355D0 (en) | 2012-03-13 | 2012-03-13 | Vibratory ring structure |
PCT/GB2013/050542 WO2013136049A1 (en) | 2012-03-13 | 2013-03-06 | Vibratory ring structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015513095A true JP2015513095A (ja) | 2015-04-30 |
JP6279495B2 JP6279495B2 (ja) | 2018-02-14 |
Family
ID=46026412
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014561507A Active JP6279495B2 (ja) | 2012-03-13 | 2013-03-06 | 振動リング構造 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9677885B2 (ja) |
EP (1) | EP2825844B1 (ja) |
JP (1) | JP6279495B2 (ja) |
KR (1) | KR101955371B1 (ja) |
CN (1) | CN104185774B (ja) |
GB (1) | GB201204355D0 (ja) |
WO (1) | WO2013136049A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104897149B (zh) * | 2014-03-05 | 2018-01-26 | 无锡华润上华科技有限公司 | 一种陀螺仪信号检测处理电路 |
GB2567479B (en) | 2017-10-13 | 2022-04-06 | Atlantic Inertial Systems Ltd | Angular rate sensors |
GB2568289A (en) | 2017-11-10 | 2019-05-15 | Atlantic Inertial Systems Ltd | Vibrating structure gyroscopes |
GB2570732B (en) | 2018-02-06 | 2023-01-11 | Atlantic Inertial Systems Ltd | Angular rate sensors |
CN108955662B (zh) * | 2018-04-27 | 2022-08-23 | 苏州大学 | 具有频差调节结构的中心轴对称谐振陀螺仪 |
CN108613686B (zh) * | 2018-04-28 | 2021-10-08 | 中南大学 | 一种振动陀螺自动化修调方法 |
EP3985351A1 (en) | 2020-10-16 | 2022-04-20 | Atlantic Inertial Systems Limited | Quadrature bias error reduction for vibrating structure gyroscopes |
CN115647616A (zh) * | 2022-09-15 | 2023-01-31 | 长沙大科激光科技有限公司 | 一种厚板激光切割的穿孔方法 |
CN115574800B (zh) * | 2022-12-06 | 2023-03-07 | 天津集智航宇科技有限公司 | 一种具有拟合式光阑的激光陀螺 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0698779A1 (en) * | 1994-08-24 | 1996-02-28 | British Aerospace Public Limited Company | Method for matching vibration mode frequencies on a vibrating structure |
JPH0989569A (ja) * | 1995-09-25 | 1997-04-04 | Kyocera Corp | 振動ジャイロ |
JPH1183498A (ja) * | 1997-09-02 | 1999-03-26 | Sumitomo Precision Prod Co Ltd | 半導体振動子の振動調整方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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US5616864A (en) * | 1995-02-22 | 1997-04-01 | Delco Electronics Corp. | Method and apparatus for compensation of micromachined sensors |
US6595056B2 (en) * | 2001-02-07 | 2003-07-22 | Litton Systems, Inc | Micromachined silicon gyro using tuned accelerometer |
WO2006006597A1 (ja) | 2004-07-12 | 2006-01-19 | Sumitomo Precision Products | 角速度センサ |
GB2460935A (en) | 2008-06-10 | 2009-12-23 | Boeing Co | Frequency tuning of disc resonator gyroscopes via resonator mass perturbations based on an identified model |
US8327684B2 (en) * | 2008-10-21 | 2012-12-11 | Teledyne Scientific & Imaging, Llc | Method for adjusting resonance frequencies of a vibrating microelectromechanical device |
CN102944230B (zh) * | 2012-11-14 | 2015-12-16 | 浙江大学 | 一种可调谐微机械陀螺的恒频驱动方法及其装置 |
-
2012
- 2012-03-13 GB GB201204355A patent/GB201204355D0/en not_active Ceased
-
2013
- 2013-03-06 US US14/384,469 patent/US9677885B2/en active Active
- 2013-03-06 EP EP13709992.5A patent/EP2825844B1/en active Active
- 2013-03-06 WO PCT/GB2013/050542 patent/WO2013136049A1/en active Application Filing
- 2013-03-06 CN CN201380013879.7A patent/CN104185774B/zh active Active
- 2013-03-06 KR KR1020147028502A patent/KR101955371B1/ko active IP Right Grant
- 2013-03-06 JP JP2014561507A patent/JP6279495B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0698779A1 (en) * | 1994-08-24 | 1996-02-28 | British Aerospace Public Limited Company | Method for matching vibration mode frequencies on a vibrating structure |
JPH08178674A (ja) * | 1994-08-24 | 1996-07-12 | British Aerospace Plc <Baf> | 振動構造における振動モード周波数を整合させる方法 |
JPH0989569A (ja) * | 1995-09-25 | 1997-04-04 | Kyocera Corp | 振動ジャイロ |
JPH1183498A (ja) * | 1997-09-02 | 1999-03-26 | Sumitomo Precision Prod Co Ltd | 半導体振動子の振動調整方法 |
Also Published As
Publication number | Publication date |
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KR20140134324A (ko) | 2014-11-21 |
WO2013136049A1 (en) | 2013-09-19 |
GB201204355D0 (en) | 2012-04-25 |
EP2825844B1 (en) | 2018-01-03 |
KR101955371B1 (ko) | 2019-03-08 |
CN104185774A (zh) | 2014-12-03 |
US20150101409A1 (en) | 2015-04-16 |
JP6279495B2 (ja) | 2018-02-14 |
CN104185774B (zh) | 2017-06-09 |
US9677885B2 (en) | 2017-06-13 |
EP2825844A1 (en) | 2015-01-21 |
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