JP2017504004A - 光学式慣性センサ - Google Patents
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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
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
- G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
- G01C19/721—Details, e.g. optical or electronical details
- G01C19/722—Details, e.g. optical or electronical details of the mechanical construction
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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
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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
- G01C19/5719—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using planar vibrating masses driven in a translation vibration along an axis
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- 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
- G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
- G01D5/35374—Particular layout of the fiber
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- 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
- G01P15/093—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 photoelectric pick-up
-
- 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
- G01P2015/0805—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 being provided with a particular type of spring-mass-system for defining the displacement of a seismic mass due to an external acceleration
- G01P2015/0822—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 being provided with a particular type of spring-mass-system for defining the displacement of a seismic mass due to an external acceleration for defining out-of-plane movement of the mass
- G01P2015/084—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 being provided with a particular type of spring-mass-system for defining the displacement of a seismic mass due to an external acceleration for defining out-of-plane movement of the mass the mass being suspended at more than one of its sides, e.g. membrane-type suspension, so as to permit multi-axis movement of the mass
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
- G02B6/4225—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements by a direct measurement of the degree of coupling, e.g. the amount of light power coupled to the fibre or the opto-electronic element
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- Electromagnetism (AREA)
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- Micromachines (AREA)
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Abstract
Description
本願は、2013年12月13日出願の米国特許出願第14/106,158号(発明の名称「OPTO−MECHANICAL INERTIAL SENSOR」)の優先権の利益を主張するものである。
Claims (25)
- 微少電気機械システム(MEMS)装置であって、
光ビームを発生するように構成されたレーザ装置と、
前記光ビームを受け取り出力するように構成された第1の導波路と、
前記第1の導波路と端面同士が実質的にアライメントされた第2の導波路であって、前記実質的にアライメントされた端面を通した光学的結合により前記第1の導波路から前記光ビームの少なくとも一部を受け取るように構成された第2の導波路とを有し、
前記第1または第2の導波路は前記装置の慣性変化に応じて可動であるように構成され、
前記第1または第2の導波路の動きにより、前記慣性変化の尺度を示す、前記光ビームの一部の光強度に対応する変化が生じる、装置。 - 前記光ビームの一部の光強度の変化を検出し、前記慣性変化を決定するように構成された、前記第2の導波路に結合した検出器をさらに有する、
請求項1に記載の装置。 - 前記第2の導波路の他の端面に端面同士で実質的にアライメントされた第3の導波路であって、前記第2と第3の導波路の実質的にアライメントされた端面を通した光学的結合を介して前記第2の導波路から前記光ビームの一部の少なくとも一部分を受け取るように構成された第3の導波路をさらに有し、
前記第2の導波路は前記第1と第3の導波路の間に浮かぶ試験質量上で、前記第2の導波路の変位を介して可動であるように構成されている、
請求項1または2に記載の装置。 - 前記光ビームの一部の光強度の変化を検出するように構成された、前記第3の導波路に結合した検出器をさらに有する、
請求項3に記載の装置。 - 前記第1の導波路は、複数の端面で、前記光ビームの一部を出力するように構成され、前記第2の導波路は、対応する複数の端面の一つであり、対応する複数の端面の個々の導波路は前記第1の導波路の端面と端面同士が実質的にアライメントされており、対応する複数の導波路は前記第1の導波路の端面との光学的結合を介して、前記光ビームの一部を受け取るように構成されている、
請求項1に記載の装置。 - 前記第1または第2の導波路を可動に構成するステップはさらに、前記第1の導波路または対応する複数の導波路の複数の端面をそれぞれ可動に構成するステップをさらに含む、
請求項5に記載の装置。 - 対応する複数の導波路は、前記光ビームの一部の光強度の変化を検出し、前記慣性変化を決定するように構成された検出器に結合されている、
請求項6に記載の装置。 - 前記光ビームを出力するように構成された複数の端面は、対応する複数の導波路の端面の間の間隔より、わずかに近いまたは遠い、
請求項7に記載の装置。 - 前記第1のまたは対応する複数の導波路の複数の端面の動きにより、前記個々の導波路の一つにより受け取られる光ビームの一部の光強度が減少し、及び前記個々の導波路の他の一つにより受け取られる光ビームの一部の光強度が増加する、
請求項8に記載の装置。 - 前記個々の導波路の一つは前記個々の導波路の他の一つに隣接している、
請求項9に記載の装置。 - 前記個々の導波路の他の一つにより受け取られる光強度の増加は、前記装置の慣性変化の方向を示す、請求項10に記載の装置。
- 試験質量構造がフレームに対して少なくとも一方向で可動であるように、前記フレームに可動に取り付けられた試験質量構造をさらに有し、
前記第1または第2の導波路の少なくとも一部は前記第1の試験質量構造上に配置され、
前記試験質量構造の動きにより、前記第1の導波路と第2の導波路の端面同士のアライメントが変化する、
請求項1に記載の装置。 - 前記試験質量は少なくとも2つのスプリングにより前記フレームに取り付けられている、
請求項12に記載の装置。 - 前記フレームの外部加速により前記試験質量が動く、
請求項12に記載の装置。 - 前記装置は加速度計を有する、
請求項14に記載の装置。 - 前記装置は第1のアセンブリを有し、
前記装置は第2のアセンブリをさらに含み、前記第2のアセンブリは、
第2の光ビームを受け取り出力するように構成された第3の導波路と、
前記第3の導波路と端面同士が実質的にアライメントされた第4の導波路であって、前記実質的にアライメントされた端面を通した光学的結合により前記第3の導波路から前記光ビームの少なくとも一部を受け取るように構成された第4の導波路とを有し、
前記第3または第4の導波路は、前記装置の他の慣性変化に応じて可動に構成され、前記第3または第4の導波路の動きにより、前記他の慣性変化の尺度を示す前記第2の光ビームの一部の光強度が対応して変化する、
請求項12ないし14いずれか一項に記載の装置。 - 前記試験質量構造は第1の試験質量構造であり、前記第4の導波路は第2の試験質量構造上に配置されている、
前記第2の試験質量構造の動きにより、前記第1の導波路と第2の導波路の端面同士のアライメントが変化する、
請求項16に記載の装置。 - 前記第2の試験質量構造は前記フレームに可動に取り付けられ、前記試験質量構造が前記フレームに対して少なくとも他の方向で可動であるようになり、前記他の方向は前記少なくとも一方向と垂直である、
請求項17に記載の装置。 - 前記フレームの外部回転により前記第2の試験質量構造が動く、
請求項18に記載の装置。 - 前記第2の試験質量は前記第1の試験質量上に配置されている、
請求項19に記載の装置。 - 前記装置はジャイロスコープを有する、
請求項16に記載の装置。 - 装置における慣性変化を検出する方法であって、
装置の光源発生ユニットが、第1の導波路に光ビームを供給するステップであって、前記第1の導波路は第2の導波路の端面に光学的に結合され、前記第2の導波路に前記光ビームの少なくとも一部を伝送させる導波路を有する、
前記第1または第2の導波路は前記装置の慣性変化に応じて可動であるステップと、
前記装置の検出モジュールが、前記装置の慣性変化に応じて、前記第2の導波路により伝送される前記光ビームの一部の光強度の変化を検出するステップであって、前記変化は前記第2と第1の導波路に対する前記第1または第2の導波路の動きにより生じ、前記変化は前記装置の慣性変化の尺度を示す、
方法。 - 前記慣性変化は前記装置の外部回転または加速のうち少なくとも一方を含む、
請求項22に記載の方法。 - 計算デバイスであって、
プロセッサと、
前記プロセッサに結合した微少電気機械システム(MEMS)装置であって、前記MEMS装置は、
光ビームを発生するように構成されたレーザ装置と、
前記光ビームを受け取り出力するように構成された第1の導波路と、
前記第1の導波路と端面同士が実質的にアライメントされた第2の導波路であって、前記実質的にアライメントされた端面を通した光学的結合により前記第1の導波路から前記光ビームの少なくとも一部を受け取るように構成された第2の導波路とを有し、
前記第1または第2の導波路は前記計算デバイスの慣性変化に応じて可動であるように構成され、
前記第1のまたは第2の導波路の動きにより前記光ビームの位置の光強度が変化し、
前記第2の導波路と結合し、前記光ビームの一部の光強度饒辺かを検出し、前記プロセッサに、光強度の尺度を示す信号を出力するように構成された検出器とを有し、
前記プロセッサは、前記信号に基づき前記計算デバイスの慣性変化を決定するように構成されている、
計算デバイス。 - 前記計算デバイスは、ラップトップ、ネットブック、ノートブック、ウルトラブック、スマートフォン、タブレット、またはパーソナルデジタルアシスタント(PDA)よりなるグループから選択されたモバイル計算デバイスである、
請求項24に記載の計算デバイス。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/106,158 | 2013-12-13 | ||
| US14/106,158 US9778042B2 (en) | 2013-12-13 | 2013-12-13 | Opto-mechanical inertial sensor |
| PCT/US2014/066702 WO2015088738A1 (en) | 2013-12-13 | 2014-11-20 | Opto-mechanical inertial sensor |
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| Publication Number | Publication Date |
|---|---|
| JP2017504004A true JP2017504004A (ja) | 2017-02-02 |
| JP6532872B2 JP6532872B2 (ja) | 2019-06-19 |
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| JP2016530005A Expired - Fee Related JP6532872B2 (ja) | 2013-12-13 | 2014-11-20 | 光学式慣性センサ |
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| Country | Link |
|---|---|
| US (1) | US9778042B2 (ja) |
| JP (1) | JP6532872B2 (ja) |
| CN (1) | CN106164679B (ja) |
| TW (1) | TWI524072B (ja) |
| WO (1) | WO2015088738A1 (ja) |
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| US9803979B2 (en) * | 2015-06-26 | 2017-10-31 | Honeywell International Inc. | Systems and methods for a time-based optical pickoff for MEMS sensors |
| US20180031599A1 (en) * | 2016-07-27 | 2018-02-01 | Khalifa University of Science and Technology | Optically enabled micro-disk inertia sensor |
| US10488429B2 (en) * | 2017-02-28 | 2019-11-26 | General Electric Company | Resonant opto-mechanical accelerometer for use in navigation grade environments |
| US10976338B2 (en) * | 2017-09-11 | 2021-04-13 | Optilab, Llc | Apparatus and method for sensing acceleration or force using fiber Bragg grating (FBG) |
| US10830787B2 (en) | 2018-02-20 | 2020-11-10 | General Electric Company | Optical accelerometers for use in navigation grade environments |
| GB2572641B (en) * | 2018-04-06 | 2021-06-02 | Rockley Photonics Ltd | Optoelectronic device and array thereof |
| US11965905B2 (en) * | 2021-12-22 | 2024-04-23 | Advanced Semiconductor Engineering, Inc. | Electronic module including optical motion sensor |
| CN116819124A (zh) * | 2023-06-19 | 2023-09-29 | 中北大学 | 一种基于纳米波导端面耦合的离面微光机电加速度计 |
| CN118746698B (zh) * | 2024-06-28 | 2025-05-13 | 深圳瑞纳电子技术发展有限公司 | 光电感应加速度传感器及其制造方法 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106164679B (zh) | 2020-12-11 |
| CN106164679A (zh) | 2016-11-23 |
| US20160195397A1 (en) | 2016-07-07 |
| TW201531706A (zh) | 2015-08-16 |
| WO2015088738A1 (en) | 2015-06-18 |
| JP6532872B2 (ja) | 2019-06-19 |
| US9778042B2 (en) | 2017-10-03 |
| TWI524072B (zh) | 2016-03-01 |
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