JP7340116B2 - 音響ベクトルセンサ - Google Patents
音響ベクトルセンサ Download PDFInfo
- Publication number
- JP7340116B2 JP7340116B2 JP2022559312A JP2022559312A JP7340116B2 JP 7340116 B2 JP7340116 B2 JP 7340116B2 JP 2022559312 A JP2022559312 A JP 2022559312A JP 2022559312 A JP2022559312 A JP 2022559312A JP 7340116 B2 JP7340116 B2 JP 7340116B2
- Authority
- JP
- Japan
- Prior art keywords
- solenoids
- measuring
- solenoid
- pair
- change
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/8027—By vectorial composition of signals received by plural, differently-oriented transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/02—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by magnetic means, e.g. reluctance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
- G01H3/10—Amplitude; Power
- G01H3/12—Amplitude; Power by electric means
- G01H3/125—Amplitude; Power by electric means for representing acoustic field distribution
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
-
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/801—Details
-
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/805—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristics of a transducer or transducer system to give a desired condition of signal derived from that transducer or transducer system, e.g. to give a maximum or minimum signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/38—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Otolaryngology (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Geophysics And Detection Of Objects (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
Claims (17)
- 流体媒質内で磁場を夫々生成する複数のソレノイドを有する非接触支持構造体と、
前記非接触支持構造体によって前記流体媒質内で浮かされている対象物であり、前記対象物及び前記非接触支持構造体は、前記対象物が音波による前記流体媒質の如何なる乱れにも応答して動くように構成され、前記複数のソレノイドが3対のソレノイドを有し、ソレノイドの各対が1つのデカルト座標軸に沿って配置され、前記対象物がソレノイドの対の間の原点に配置される、前記対象物と、
前記対象物の動きを測定する測定デバイスと、
前記対象物の前記測定された動きに基づき前記音波の音響強度ベクトルを決定する処理デバイスと、
駆動信号により前記複数のソレノイドを駆動する励起デバイスであり、前記対象物の位置の如何なる変化にも対抗する磁気井戸が前記原点で現れるAC場が前記3対の夫々の対になったソレノイド間に生成されるように、前記対に成ったソレノイドを、互いに位相がずれている電流駆動信号により駆動するよう構成される前記励起デバイスと
を有し、
前記対象物内で、前記AC場により、前記複数のソレノイドによって生成された前記磁場に対抗する磁場を生じさせる電流が発生するように、前記対象物は導電性だが非強磁性の材料から成る、音響ベクトルセンサ(AVS)。 - 前記測定デバイスは、ソレノイドの各対の各ソレノイドから離れる前記対象物の如何なる測定された動きにも基づき前記対象物での圧力の増大を決定し、あるいは、ソレノイドの各対の各ソレノイドの方への前記対象物の如何なる測定された動きにも基づき前記対象物での圧力の低減を決定し、それによって前記対象物での圧力変化を電気的に測定する、
請求項1に記載のAVS。 - 前記測定デバイスは、前記対象物の如何なる動きによっても起こるソレノイドの各対での前記駆動信号の駆動電圧のエンベロープの如何なる変化も測定することによってインダクタンスの如何なる変化も決定し、それによって、前記対象物の動きを電気的に変換する、
請求項1に記載のAVS。 - 各ソレノイド又はソレノイドの各対は、LC回路を設けるようキャパシタと対にされ、
前記測定デバイスは、前記対象物の如何なる動きによっても起こるソレノイドの各対での前記駆動信号の周波数の変化を測定することによってインダクタンスの変化を測定し、それによって前記対象物の動きを電気的に変換する、
請求項1に記載のAVS。 - 前記処理デバイスは、前記インダクタンスの如何なる変化にも基づいて前記対象物の3次元の動きを決定し、前記対象物の前記決定された3次元の動きから前記音波の前記音響強度ベクトルを決定する、
請求項4に記載のAVS。 - 前記対象物は、導電性の非鉄材料で被覆される、
請求項1に記載のAVS。 - 前記対象物は球である、
請求項6に記載のAVS。 - 前記対象物は、検出される音波の最高周波数の波長よりも小さいサイズを有する、
請求項6に記載のAVS。 - 前記対象物は中空の物体である、
請求項6に記載のAVS。 - 前記非接触支持構造体は前記磁場を有する、
請求項1に記載のAVS。 - 前記測定デバイスは、電磁場検出デバイスを有する、
請求項1に記載のAVS。 - 音波の音響強度ベクトルを決定する方法であって、
対象物の各デカルト座標軸上に置かれた少なくとも1つのソレノイドを有する磁気非接触支持構造体により流体媒質内で前記対象物を浮かせることであり、3対のソレノイドを設けることを有し、ソレノイドの各対は1つのデカルト座標軸に沿って配置され、前記対象物はソレノイドの対の間の原点に配置される、ことと、
前記流体媒質内で前記対象物を浮かせるよう磁場が供給されるように、かつ、前記対象物が音波による前記流体媒質の如何なる乱れにも応答して動くよう構成されるように、前記少なくとも1つのソレノイドを駆動することと、
前記音波による前記対象物の如何なる乱れも測定することと、
前記対象物の如何なる乱れの前記測定にも基づいて、処理デバイスにより前記音波の音響強度ベクトルを決定することと、
前記対象物の位置の如何なる変化にも対抗する磁気井戸が前記原点で現れるAC場が前記3対の夫々の対になったソレノイド間に生成されるように、前記対に成ったソレノイドを、互いに位相がずれている電流駆動信号により駆動して、非強磁性の導電性材料から成る前記対象物内で、前記AC場により、前記少なくとも1つのソレノイドの駆動に供給される前記磁場に対抗する磁場を生じさせる電流を発生させることと
を有する方法。 - 前記対象物の如何なる乱れも測定することは、前記対象物の如何なる動きによっても起こるソレノイドの各対での前記駆動信号の駆動電圧のエンベロープの如何なる変化も測定することによってインダクタンスの如何なる変化も決定し、それによって前記対象物の動きを電気的に変換することを有する、
請求項12に記載の方法。 - LC回路を設けるよう各ソレノイド又はソレノイドの各対をキャパシタと対にすることを更に有し、
前記対象物の如何なる乱れも測定することは、前記対象物の如何なる動きによっても起こる各ソレノイドでの前記駆動信号の周波数の変化を測定することによってインダクタンスの変化を測定し、それによって前記対象物の動きを電気的に変換することを有する、
請求項12に記載の方法。 - ソレノイドの各対の各ソレノイドから離れる前記対象物の如何なる測定された動きにも基づき前記対象物での圧力の増大を決定し、あるいは、ソレノイドの各対の各ソレノイドの方への前記対象物の如何なる測定された動きにも基づき前記対象物での圧力の低減を決定し、それによって前記対象物での圧力変化を電気的に測定することを更に有する、
請求項12に記載の方法。 - 測定される音波の最高周波数の波長よりも小さい形体サイズを有する前記対象物を設けることを更に有する、
請求項12に記載の方法。 - 導電性の非鉄材料で被覆された前記対象物を設けることを更に有する、
請求項12に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/844,343 US11435428B2 (en) | 2020-04-09 | 2020-04-09 | Acoustic vector sensor |
US16/844,343 | 2020-04-09 | ||
PCT/US2021/017243 WO2021206798A1 (en) | 2020-04-09 | 2021-02-09 | Acoustic vector sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2023510646A JP2023510646A (ja) | 2023-03-14 |
JP7340116B2 true JP7340116B2 (ja) | 2023-09-06 |
Family
ID=74860403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022559312A Active JP7340116B2 (ja) | 2020-04-09 | 2021-02-09 | 音響ベクトルセンサ |
Country Status (7)
Country | Link |
---|---|
US (2) | US11435428B2 (ja) |
EP (1) | EP4133240A1 (ja) |
JP (1) | JP7340116B2 (ja) |
AU (1) | AU2021254019B2 (ja) |
CA (1) | CA3173619A1 (ja) |
IL (1) | IL296275B2 (ja) |
WO (1) | WO2021206798A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11435428B2 (en) * | 2020-04-09 | 2022-09-06 | Raytheon Bbn Technologies Corp. | Acoustic vector sensor |
US11796562B2 (en) * | 2020-05-29 | 2023-10-24 | Aivs Inc. | Acoustic intensity sensor using a MEMS triaxial accelerometer and MEMS microphones |
US20230348261A1 (en) * | 2022-04-28 | 2023-11-02 | Aivs Inc. | Accelerometer-based acoustic beamformer vector sensor with collocated mems microphone |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004030198A3 (en) | 2002-09-27 | 2004-06-03 | Univ British Columbia | Magnetic levitation apparatus |
US20040244492A1 (en) | 2003-06-05 | 2004-12-09 | International Business Machines Corporation | Pressure wave sensor using levitated mass |
CN200962056Y (zh) | 2005-12-23 | 2007-10-17 | 谭成忠 | 基于磁悬浮原理的振动传感器 |
US20110033062A1 (en) | 2009-08-06 | 2011-02-10 | Deng Ken K | Acoustic velocity microphone using a buoyant object |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4585282A (en) | 1983-07-19 | 1986-04-29 | Bosley Robert W | Magnetic levitation system |
WO1989011636A1 (en) | 1988-05-25 | 1989-11-30 | Geosensor Limited | Improvements in or relating to electro-magnetically operable devices |
US11435428B2 (en) * | 2020-04-09 | 2022-09-06 | Raytheon Bbn Technologies Corp. | Acoustic vector sensor |
-
2020
- 2020-04-09 US US16/844,343 patent/US11435428B2/en active Active
-
2021
- 2021-02-09 WO PCT/US2021/017243 patent/WO2021206798A1/en unknown
- 2021-02-09 AU AU2021254019A patent/AU2021254019B2/en active Active
- 2021-02-09 EP EP21710661.6A patent/EP4133240A1/en active Pending
- 2021-02-09 JP JP2022559312A patent/JP7340116B2/ja active Active
- 2021-02-09 CA CA3173619A patent/CA3173619A1/en active Pending
-
2022
- 2022-08-04 US US17/881,341 patent/US11698433B2/en active Active
- 2022-09-07 IL IL296275A patent/IL296275B2/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004030198A3 (en) | 2002-09-27 | 2004-06-03 | Univ British Columbia | Magnetic levitation apparatus |
US20040244492A1 (en) | 2003-06-05 | 2004-12-09 | International Business Machines Corporation | Pressure wave sensor using levitated mass |
CN200962056Y (zh) | 2005-12-23 | 2007-10-17 | 谭成忠 | 基于磁悬浮原理的振动传感器 |
US20110033062A1 (en) | 2009-08-06 | 2011-02-10 | Deng Ken K | Acoustic velocity microphone using a buoyant object |
Also Published As
Publication number | Publication date |
---|---|
CA3173619A1 (en) | 2021-10-14 |
IL296275A (en) | 2022-11-01 |
AU2021254019A1 (en) | 2022-05-26 |
EP4133240A1 (en) | 2023-02-15 |
AU2021254019B2 (en) | 2023-03-09 |
IL296275B2 (en) | 2023-07-01 |
IL296275B1 (en) | 2023-03-01 |
JP2023510646A (ja) | 2023-03-14 |
WO2021206798A8 (en) | 2022-03-10 |
US20210318406A1 (en) | 2021-10-14 |
US11435428B2 (en) | 2022-09-06 |
US20220373632A1 (en) | 2022-11-24 |
US11698433B2 (en) | 2023-07-11 |
WO2021206798A1 (en) | 2021-10-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7340116B2 (ja) | 音響ベクトルセンサ | |
CN200962056Y (zh) | 基于磁悬浮原理的振动传感器 | |
US8638956B2 (en) | Acoustic velocity microphone using a buoyant object | |
Pike et al. | A self-levelling nano-g silicon seismometer | |
US10024713B1 (en) | Vibrissa sensor | |
US4314202A (en) | Flexural vibration sensor with magnetic field generating and sensing | |
US20230097313A1 (en) | Electromagnetic gradiometers | |
US4905517A (en) | Multicomponent transducer | |
US6832518B1 (en) | Pressure wave sensor using levitated mass | |
Tsubono et al. | Triple‐pendulum vibration isolation system for a laser interferometer | |
EP3892973A2 (en) | Force sensor | |
RU2438151C1 (ru) | Гравитационный вариометр | |
JP3561344B2 (ja) | サーボ型速度・変位センサ | |
Robertson et al. | Experimental results of a 1D passive magnetic spring approaching quasi-zero stiffness and using active skyhook damping | |
US11353085B2 (en) | Cantilever assemblies and methods of providing damping for cantilever assemblies | |
CN117471563B (zh) | 悬浮摆隔振装置、万有引力常数的测量装置及其测量方法 | |
US20200393584A1 (en) | Mono and Dipole Acoustic Projector | |
RU2799973C1 (ru) | Векторный автономный регистратор | |
JP3760190B2 (ja) | 多方向振動検知装置 | |
RU2193218C2 (ru) | Пьезомагнитный геофон | |
Pfeffer et al. | Development of an electrodynamic velocity sensor for active mounting structures | |
Chen et al. | Fiber-optic acoustic-velocity hydrophone based on castor-oil-loaded fiber-laser cantilever | |
US4471303A (en) | Flexural vibration transducer with magnetic field generating | |
KR20230053149A (ko) | 음파 탐지 장치 및 이를 포함하는 소노부이 시스템 | |
Martin Jr et al. | Vibrissa Sensor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220928 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220928 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20220928 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230307 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230330 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230418 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230704 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230801 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230825 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7340116 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |