JP7456412B2 - 慣性センサ - Google Patents
慣性センサ Download PDFInfo
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- JP7456412B2 JP7456412B2 JP2021057614A JP2021057614A JP7456412B2 JP 7456412 B2 JP7456412 B2 JP 7456412B2 JP 2021057614 A JP2021057614 A JP 2021057614A JP 2021057614 A JP2021057614 A JP 2021057614A JP 7456412 B2 JP7456412 B2 JP 7456412B2
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Images
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
- G01C19/567—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
- G01C19/5691—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 three-dimensional vibrators, e.g. wine glass-type vibrators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/125—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by capacitive pick-up
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B7/00—Microstructural systems; Auxiliary parts of microstructural devices or systems
- B81B7/0006—Interconnects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
- G01C21/166—Mechanical, construction or arrangement details of inertial navigation systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/47—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being an inertial measurement, e.g. tightly coupled inertial
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2201/00—Specific applications of microelectromechanical systems
- B81B2201/02—Sensors
- B81B2201/0228—Inertial sensors
Description
実施形態に係る慣性センサ1について、図1~図10Bを参照して説明する。
慣性センサ1は、例えば、図1に示すように、微小振動体2と、実装基板3とを備え、微小振動体2の一部が実装基板3に接合されてなる。慣性センサ1は、ワイングラスモードで振動することが可能な薄肉の微小振動体2と実装基板3のうち後述する複数の電極部53との間における静電容量の変化に基づき、慣性センサ1に印加された角速度を検出する構成となっている。慣性センサ1は、例えば、BRG構造のジャイロセンサであって、自動車等の車両に搭載される用途に適用されると好適であるが、勿論、他の用途にも適用されうる。
次に、本実施形態の慣性センサ1の製造方法について図11A~図11Eを参照して説明するが、微小振動体2および実装基板3自体の製造については上記したため、ここでは、微小振動体2を実装基板3に接合する工程について主に説明する。
本発明は、実施例に準拠して記述されたが、本発明は当該実施例や構造に限定されるものではないと理解される。本発明は、様々な変形例や均等範囲内の変形をも包含する。加えて、様々な組み合わせや形態、さらには、それらの一要素のみ、それ以上、あるいはそれ以下、を含む他の組み合わせや形態をも、本発明の範疇や思想範囲に入るものである。
22・・・凹部、22b・・・底面、23・・・底面凸部、23b・・・先端面、
24・・・貫通孔、25・・・導電層、3・・・実装基板、4・・・下部基板、
43・・・位置決め凹部、5・・・上部基板、51・・・内枠部、53・・・電極部
Claims (5)
- 慣性センサであって、
外径が大きい側の面である表面(2a)と前記表面の反対面である裏面(2b)とを有する薄肉部材であって、環状曲面を備える曲面部(21)と、前記曲面部から前記裏面の側に凹んだ凹部(22)と、前記凹部の前記裏面における底面(22b)から前記裏面の側に突出する底面凸部(23)と、前記底面凸部に設けられ、前記表面と前記裏面とを繋ぐ貫通孔(24)と、前記表面の少なくとも一部を覆う導電層(25)と、を有する微小振動体(2)と、
前記微小振動体の前記底面凸部が挿入される位置決め凹部(43)を有する下部基板(4)に、前記位置決め凹部を囲む枠体状の内枠部(51)と、互いに距離を隔てつつ、前記内枠部を囲む配置とされる複数の電極部(53)とを有してなる上部基板(5)が接合されてなる実装基板(3)と、
前記位置決め凹部に配置され、前記微小振動体の前記底面凸部と前記実装基板とを接合する接合部材(52)と、を備え、
前記微小振動体は、前記曲面部が中空状態となっており、
前記底面は、前記実装基板のうち前記位置決め凹部の周囲の領域に当接しており、
前記底面凸部のうち前記底面とは反対側の先端における面を先端面(23b)として、前記位置決め凹部は、前記先端面とは距離を隔てており、
前記接合部材は、少なくとも一部が前記貫通孔に入り込むと共に、前記導電層と電気的に接続されている、慣性センサ。 - 前記導電層は、前記貫通孔の内壁の少なくとも一部を覆うと共に、少なくとも一部が前記貫通孔の内壁のうち前記表面の側の上端と前記裏面の側の下端とを繋ぐように延設されている、請求項1に記載の慣性センサ。
- 前記導電層は、前記微小振動体のうち少なくとも複数の前記電極部と向き合うリム(211)の前記表面を覆うと共に、前記表面の側のみを覆っている、請求項1または2に記載の慣性センサ。
- 前記接合部材は、前記位置決め凹部を充填している、請求項1ないし3のいずれか1つに記載の慣性センサ。
- 前記底面凸部は、前記底面の側の端部よりも前記先端の外径が小さくなる、テーパー形状または湾曲形状である、請求項1ないし4のいずれか1つに記載の慣性センサ。
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JP2021057614A JP7456412B2 (ja) | 2021-03-30 | 2021-03-30 | 慣性センサ |
US17/703,164 US11740087B2 (en) | 2021-03-30 | 2022-03-24 | Inertial sensor |
CN202210313136.2A CN115144614A (zh) | 2021-03-30 | 2022-03-28 | 惯性传感器 |
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JP2021057614A JP7456412B2 (ja) | 2021-03-30 | 2021-03-30 | 慣性センサ |
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JP2022154534A JP2022154534A (ja) | 2022-10-13 |
JP7456412B2 true JP7456412B2 (ja) | 2024-03-27 |
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US (1) | US11740087B2 (ja) |
JP (1) | JP7456412B2 (ja) |
CN (1) | CN115144614A (ja) |
Families Citing this family (2)
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JP7452492B2 (ja) * | 2021-05-21 | 2024-03-19 | 株式会社デンソー | 慣性センサおよびその製造方法 |
WO2024077035A1 (en) * | 2022-10-04 | 2024-04-11 | Enertia Microsystems Inc. | Vibratory gyroscopes with resonator attachments |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007316037A (ja) | 2006-05-29 | 2007-12-06 | Sumitomo Precision Prod Co Ltd | 角速度センサ |
JP2012042452A (ja) | 2010-05-30 | 2012-03-01 | Honeywell Internatl Inc | 半ドーナツ形共振器ジャイロスコープ |
US20190094024A1 (en) | 2016-02-29 | 2019-03-28 | The Regents Of The University Of Michigan | Assembly processes for three-dimensional microstructures |
JP2020188652A (ja) | 2019-05-17 | 2020-11-19 | 株式会社デンソー | 駆動装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US4951508A (en) * | 1983-10-31 | 1990-08-28 | General Motors Corporation | Vibratory rotation sensor |
FR2936049B1 (fr) * | 2008-09-16 | 2010-09-17 | Sagem Defense Securite | Resonateur a metallisation partielle pour detecteur de parametre angulaire. |
FR2952426B1 (fr) * | 2009-11-12 | 2012-10-05 | Sagem Defense Securite | Resonateur a couche metallisee partielle |
US9494425B2 (en) * | 2011-05-25 | 2016-11-15 | The Regents Of The University Of Michigan | Gyroscope and method of fabricating a resonator for a gyroscope |
US9796586B2 (en) * | 2014-12-31 | 2017-10-24 | The Regents Of The University Of Michigan | Three dimensional microstructures and fabrication process |
WO2017101813A1 (zh) * | 2015-12-18 | 2017-06-22 | 东南大学 | 微三维壳体谐振陀螺 |
CN110749315A (zh) | 2019-11-13 | 2020-02-04 | 中国人民解放军国防科技大学 | 一种微半球谐振陀螺结构、装配方法及圆片夹具 |
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- 2021-03-30 JP JP2021057614A patent/JP7456412B2/ja active Active
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- 2022-03-24 US US17/703,164 patent/US11740087B2/en active Active
- 2022-03-28 CN CN202210313136.2A patent/CN115144614A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007316037A (ja) | 2006-05-29 | 2007-12-06 | Sumitomo Precision Prod Co Ltd | 角速度センサ |
JP2012042452A (ja) | 2010-05-30 | 2012-03-01 | Honeywell Internatl Inc | 半ドーナツ形共振器ジャイロスコープ |
US20190094024A1 (en) | 2016-02-29 | 2019-03-28 | The Regents Of The University Of Michigan | Assembly processes for three-dimensional microstructures |
JP2020188652A (ja) | 2019-05-17 | 2020-11-19 | 株式会社デンソー | 駆動装置 |
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US20220316880A1 (en) | 2022-10-06 |
CN115144614A (zh) | 2022-10-04 |
JP2022154534A (ja) | 2022-10-13 |
US11740087B2 (en) | 2023-08-29 |
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