JP4159463B2 - 電気活性湾曲へリックスまたは二重ヘリックスを使用したセンサ - Google Patents
電気活性湾曲へリックスまたは二重ヘリックスを使用したセンサ Download PDFInfo
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- JP4159463B2 JP4159463B2 JP2003505567A JP2003505567A JP4159463B2 JP 4159463 B2 JP4159463 B2 JP 4159463B2 JP 2003505567 A JP2003505567 A JP 2003505567A JP 2003505567 A JP2003505567 A JP 2003505567A JP 4159463 B2 JP4159463 B2 JP 4159463B2
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- electroactive
- sensor
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- 229910052451 lead zirconate titanate Inorganic materials 0.000 claims description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 2
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims description 2
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
- H10N30/302—Sensors
-
- 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
- G01D5/12—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 using electric or magnetic means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gyroscopes (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Micromachines (AREA)
- Level Indicators Using A Float (AREA)
- Measuring Fluid Pressure (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Description
Claims (22)
- 検出器回路に電気接続された電気活性デバイスを備えたセンサであって、該電気活性デバイスが連続な電気活性部材を備え、この連続な電気活性部材は、湾曲した短軸の周りに螺旋状に湾曲し、かつ、該連続な電気活性部材の端部の相対変位によって機械的に活性化されると、該連続な電気活性部材の端部の相対変位に付随して前記湾曲した短軸の周りにねじれて電気信号を生成するように配置され、前記検出器回路が、生成された電気信号を検出するように配置されたセンサ。
- 前記連続な電気活性部材の端部が、その相対変位を検出すべき相対可動エレメントに結合された、請求項1に記載のセンサ。
- 前記エレメントの1つがフロートである、請求項2に記載のセンサ。
- 前記エレメントの1つが、液体圧力の印加によって動作するように配置されたピストンであり、したがって前記センサが圧力センサである、請求項2に記載のセンサ。
- 前記ピストンが剛直部材である、請求項4に記載のセンサ。
- 前記ピストンがフレキシブル・ダイヤフラムである、請求項4に記載のセンサ。
- 前記エレメントの1つが、入射する音波によって動作するよう配置された音響検出エレメントであり、したがって前記センサがマイクロホンを構成している、請求項2に記載のセンサ。
- 他のエレメントが前記1つのエレメントを支持している、請求項3から7のいずれか一項に記載のセンサ。
- 前記エレメントの1つが質量であり、したがって前記センサが、他のエレメントの加速度を検出するための加速度センサを構成している、請求項2に記載のセンサ。
- 前記検出器回路が、電圧としての前記電気信号を検出するように配置された、請求項1から9のいずれか一項に記載のセンサ。
- 前記検出器回路が積分電流検出器回路である、請求項1から9のいずれか一項に記載のセンサ。
- 請求項1に記載のセンサであって、回転軸の周りの円周に、半径が変化するフィーチャを有する回転エレメントをさらに備え、前記フィーチャを検出するべく前記連続な電気活性部材の一方の端部が前記円周と係合する部材に結合され、それにより該センサが回転エンコーダを構成している、センサ。
- 前記フィーチャの輪郭が、前記回転軸の周方向に対して非対称な形状を有する、請求項12に記載のセンサ。
- 請求項1に記載のセンサにおいて、前記連続な電気活性部材が、交番電気信号を印加することによって、前記第1に言及した電気信号の生成とは独立して電気的に活性化させることができ、このセンサが、前記連続な電気活性部材に電気接続された、前記活性化電気信号を供給するための交番信号源をさらに備え、それにより該センサがジャイロスコープを構成している、センサ。
- 前記連続な電気活性部材が、少なくとも1つの電気活性材料層を含む複数の層の湾曲構造を有する、請求項1から14のいずれか一項に記載のセンサ。
- 前記連続な電気活性部材が、2層の電気活性材料層のバイモル湾曲構造または3層以上の電気活性材料層のマルチモル湾曲構造を有する、請求項15に記載のセンサ。
- 前記連続な電気活性部材が、該連続な電気活性部材の機械的活性化に応じて、その両端間に電気信号を生じさせるための電極を備えた、請求項1から16のいずれか一項に記載のセンサ。
- 前記短軸が螺旋状曲線中を展開した、請求項1から17のいずれか一項に記載のセンサ。
- 前記短軸が平面状曲線中を展開した、請求項1から17のいずれか一項 に記載のセンサ。
- 前記連続な電気活性部材が圧電材料を含む、請求項1から19のいずれか一項に記載のセンサ。
- 前記圧電材料が、圧電セラミックまたは圧電重合体である、請求項20に記載のセンサ。
- 前記圧電材料が、ジルコン酸チタン酸鉛(PZT)またはポリフッ化ビニリデン(PVDF)である、請求項21に記載のセンサ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0115074.7A GB0115074D0 (en) | 2001-06-20 | 2001-06-20 | Sensors using an electro-active device |
PCT/GB2002/002781 WO2002103294A1 (en) | 2001-06-20 | 2002-06-19 | Sensor using electro active curved helix or double helix |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004533615A JP2004533615A (ja) | 2004-11-04 |
JP4159463B2 true JP4159463B2 (ja) | 2008-10-01 |
Family
ID=9917000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003505567A Expired - Lifetime JP4159463B2 (ja) | 2001-06-20 | 2002-06-19 | 電気活性湾曲へリックスまたは二重ヘリックスを使用したセンサ |
Country Status (5)
Country | Link |
---|---|
US (1) | US7069795B2 (ja) |
JP (1) | JP4159463B2 (ja) |
CN (1) | CN1302259C (ja) |
GB (2) | GB0115074D0 (ja) |
WO (1) | WO2002103294A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2329514B (en) * | 1997-09-05 | 2002-02-13 | 1 Ipr Ltd | Aerogels, piezoelectric devices and uses therefor |
JP2004304193A (ja) * | 2004-03-31 | 2004-10-28 | Kyoto Univ | 機能素子、機能素子を用いた装置、および機能素子の製造方法 |
DE102004056416A1 (de) * | 2004-11-23 | 2006-05-24 | Robert Bosch Gmbh | Beschleunigungssensor in einem Steuergerät |
US8549910B2 (en) * | 2010-01-07 | 2013-10-08 | Federal-Mogul Corporation | Fuel system electro-static potential differential level sensor element and hardware/software configuration |
US8704427B2 (en) | 2010-04-02 | 2014-04-22 | Sony Corporation | Movement sensor |
JP5288080B1 (ja) | 2011-09-22 | 2013-09-11 | パナソニック株式会社 | 指向性スピーカ |
KR20170066391A (ko) * | 2014-09-04 | 2017-06-14 | 스트레치센스 리미티드 | 개선된 전자-기계적 센서 |
TWI752106B (zh) | 2016-10-28 | 2022-01-11 | 日商帝人股份有限公司 | 用於壓電元件之構造體、編織狀壓電元件、使用編織狀壓電元件之布帛狀壓電元件及使用該些之裝置 |
CN108448940B (zh) * | 2018-05-02 | 2024-04-26 | 南京邮电大学 | 一种交联圆弧型压电式能量收集器 |
CN110206552B (zh) * | 2019-06-21 | 2024-04-19 | 中国电建集团成都勘测设计研究院有限公司 | 用于隧道掘进机盾体的压力感应系统 |
CN111081862B (zh) * | 2019-12-31 | 2022-01-18 | 清华大学 | 基于介电效应的电致变形装置及其制作方法 |
CN114362591B (zh) * | 2022-01-07 | 2023-07-21 | 北京航空航天大学 | 一种综合利用挠曲电和环境动能的发电方法、装置及系统 |
CN116939449A (zh) * | 2022-04-07 | 2023-10-24 | 深圳市韶音科技有限公司 | 一种声学输出装置 |
CN116939447A (zh) * | 2022-04-07 | 2023-10-24 | 深圳市韶音科技有限公司 | 一种声学输出装置 |
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US3168623A (en) * | 1954-10-13 | 1965-02-02 | Gulton Ind Inc | Piezoelectric transducer |
DE1945448A1 (de) | 1969-09-08 | 1971-03-11 | Siemens Ag | Piezoelektrisch anzutreibender Biegekoerper,insbesondere fuer Uhren und Relais |
US3676722A (en) * | 1969-10-06 | 1972-07-11 | Motorola Inc | Structure for bimorph or monomorph benders |
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US4330730A (en) * | 1980-03-27 | 1982-05-18 | Eastman Kodak Company | Wound piezoelectric polymer flexure devices |
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FR2601132B1 (fr) | 1986-07-04 | 1989-03-24 | Inst Francais Du Petrole | Dispositif capteur d'ondes de pression du type piezo-electrique a structure continue et procede pour sa fabrication |
FR2603422B1 (fr) * | 1986-08-27 | 1988-12-30 | Inst Francais Du Petrole | Procede pour realiser des capteurs piezo-electriques continus de sensibilite accrue et capteurs realises suivant le procede |
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GB2329514B (en) * | 1997-09-05 | 2002-02-13 | 1 Ipr Ltd | Aerogels, piezoelectric devices and uses therefor |
AUPP307398A0 (en) | 1998-04-21 | 1998-05-14 | Mitchell, William Richard | Fluid pump and actuating system incorporating piezoceramic elements |
AU2016501A (en) * | 1999-12-21 | 2001-07-03 | 1... Limited | Electro-active devices |
GB2375884B (en) * | 2001-05-23 | 2005-01-05 | 1 Ltd | Electro-active devices |
-
2001
- 2001-06-20 GB GBGB0115074.7A patent/GB0115074D0/en not_active Ceased
-
2002
- 2002-06-19 WO PCT/GB2002/002781 patent/WO2002103294A1/en active Application Filing
- 2002-06-19 GB GB0329117A patent/GB2393572B/en not_active Expired - Fee Related
- 2002-06-19 US US10/480,675 patent/US7069795B2/en not_active Expired - Fee Related
- 2002-06-19 JP JP2003505567A patent/JP4159463B2/ja not_active Expired - Lifetime
- 2002-06-19 CN CNB028162706A patent/CN1302259C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2002103294A1 (en) | 2002-12-27 |
GB0329117D0 (en) | 2004-01-21 |
CN1545612A (zh) | 2004-11-10 |
CN1302259C (zh) | 2007-02-28 |
JP2004533615A (ja) | 2004-11-04 |
US20040237676A1 (en) | 2004-12-02 |
GB0115074D0 (en) | 2001-08-15 |
GB2393572A (en) | 2004-03-31 |
US7069795B2 (en) | 2006-07-04 |
GB2393572B (en) | 2004-12-15 |
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