WO2009028591A1 - 超音波伝播時間測定システム - Google Patents

超音波伝播時間測定システム Download PDF

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Publication number
WO2009028591A1
WO2009028591A1 PCT/JP2008/065372 JP2008065372W WO2009028591A1 WO 2009028591 A1 WO2009028591 A1 WO 2009028591A1 JP 2008065372 W JP2008065372 W JP 2008065372W WO 2009028591 A1 WO2009028591 A1 WO 2009028591A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultrasonic wave
signal
wave signal
ultrasonic
propagation time
Prior art date
Application number
PCT/JP2008/065372
Other languages
English (en)
French (fr)
Inventor
Hiroshi Kajitani
Junichi Miyamoto
Original Assignee
Nec Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nec Corporation filed Critical Nec Corporation
Priority to US12/675,683 priority Critical patent/US8280692B2/en
Priority to CN200880105053.2A priority patent/CN101828129B/zh
Priority to JP2009530170A priority patent/JP5568986B2/ja
Publication of WO2009028591A1 publication Critical patent/WO2009028591A1/ja

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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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/16—Systems for determining distance or velocity not using reflection or reradiation using difference in transit time between electrical and acoustic signals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/043—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
    • G06F3/0433—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves in which the acoustic waves are either generated by a movable member and propagated within a surface layer or propagated within a surface layer and captured by a movable member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

　圧電または磁歪素子の残留振動の影響を排除し受信超音波波形とモデル波形との相関性を高め、超音波信号の反射波の影響を受けない位置検出方法およびシステムを提供すること。本発明の超音波伝播時間測定システムの送信部２において、送信タイミングを表すトリガー信号を含む電磁波信号と、該電磁波信号の送出と同時に自己相関性の高い擬似ランダム信号に基づいて超音波を変調することにより超音波駆動信号を生成し、超音波送信器１０４により該超音波駆動信号の周波数より高い周波数の超音波信号を送出する。受信部３において、前記電磁波信号と超音波信号を検出し、前記超音波駆動信号をモデル波形とし、検出された超音波信号と該モデル波形との間で相関値を算出し、算出された相関値の主ピーク値を検出し、前記電磁波信号の検出時点と該主ピーク値の検出時点とから超音波伝播時間を算出するデータ処理回路２０６を具備する（図１）。
PCT/JP2008/065372 2007-08-30 2008-08-28 超音波伝播時間測定システム WO2009028591A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/675,683 US8280692B2 (en) 2007-08-30 2008-08-28 Ultrasonic wave propagation time measuring system
CN200880105053.2A CN101828129B (zh) 2007-08-30 2008-08-28 超声波传播时间测定***
JP2009530170A JP5568986B2 (ja) 2007-08-30 2008-08-28 超音波伝播時間測定システム

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007224859 2007-08-30
JP2007-224859 2007-08-30
JP2008-159151 2008-06-18
JP2008159151 2008-06-18

Publications (1)

Publication Number Publication Date
WO2009028591A1 true WO2009028591A1 (ja) 2009-03-05

Family

ID=40387305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/065372 WO2009028591A1 (ja) 2007-08-30 2008-08-28 超音波伝播時間測定システム

Country Status (4)

Country Link
US (1) US8280692B2 (ja)
JP (1) JP5568986B2 (ja)
CN (1) CN101828129B (ja)
WO (1) WO2009028591A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
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WO2010098346A1 (ja) * 2009-02-25 2010-09-02 日本電気株式会社 超音波伝播時間測定システム
JP2010210369A (ja) * 2009-03-10 2010-09-24 Univ Of Tsukuba 伝搬時間測定装置、伝搬時間測定方法
WO2011007685A1 (ja) * 2009-07-14 2011-01-20 日本電気株式会社 位置検出システム、送信装置、受信装置及び位置検出方法
CN102889968A (zh) * 2012-10-12 2013-01-23 河海大学常州校区 低浓度六氟化硫气体检测的声学方法及其装置
JP2013181809A (ja) * 2012-03-01 2013-09-12 Honda Motor Co Ltd 距離測定方法及び距離測定システム

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* Cited by examiner, † Cited by third party
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JP2012125135A (ja) * 2010-07-27 2012-06-28 Nihon Densan Seimitsu Kk 振動発生装置
DE102010051213A1 (de) * 2010-11-12 2012-05-16 Rohde & Schwarz Gmbh & Co. Kg Messvorrichtung und Messverfahren zur Ortung von elektrischen Störquellen
CN103076591B (zh) * 2013-01-11 2015-04-29 广州飞锐网络科技有限公司 基于超声波技术的工业机器人运动定位方法及***
KR101534020B1 (ko) * 2013-11-18 2015-07-06 주식회사 피엔에프 위치 정보 입력 시스템
JP2018092240A (ja) * 2016-11-30 2018-06-14 株式会社デンソー 位置検出システム
CN108152362B (zh) * 2017-11-30 2021-12-10 湖北工业大学 一种基于伪随机序列的磁致伸缩检测钢结构缺陷的方法
JP7040766B2 (ja) * 2018-03-29 2022-03-23 株式会社ブイ・テクノロジー 超音波距離測定装置及び超音波距離測定方法
EP3921767B1 (en) * 2019-02-06 2023-08-02 Fingerprint Cards Anacatum IP AB Acoustic fingerprint representation acquisition technique
CN113294226B (zh) * 2021-06-30 2022-06-03 同济大学 一种基于超声波除颗粒物的颗粒捕集器
CN113534704A (zh) * 2021-07-08 2021-10-22 辉创电子科技(苏州)有限公司 一种超声波传感器表面异物侦测***与流程

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JP2005291798A (ja) * 2004-03-31 2005-10-20 Sanyo Electric Co Ltd 発信装置、音波センサ及び自走車
WO2005111653A2 (en) * 2004-05-17 2005-11-24 Epos Technologies Limited Acoustic robust synchronization signaling for acoustic positioning system
JP2007040734A (ja) * 2005-08-01 2007-02-15 Nec Corp 送信モードリコメンドシステム、ソーナーシステム、送信モードリコメンド方法、そのプログラム及び記録媒体
JP2007085867A (ja) * 2005-09-21 2007-04-05 Osaka Prefecture 超音波送信器の駆動方法並びに駆動装置

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US6118205A (en) * 1998-08-13 2000-09-12 Electronics For Imaging, Inc. Transducer signal waveshaping system
FR2790554B1 (fr) * 1999-03-03 2001-06-29 Schlumberger Ind Sa Methode et dispositif de mesure du temps de propagation d'un signal, en particulier d'un signal ultrasonore
DE10140346B4 (de) * 2001-08-17 2012-04-26 Robert Bosch Gmbh Verfahren zur Entfernungsmessung
KR100893114B1 (ko) * 2002-01-31 2009-04-14 후지쯔 가부시끼가이샤 좌표 입력을 위한 초음파 거리 측정 장치 및 방법
CN2784945Y (zh) * 2004-04-27 2006-05-31 山东省远大网络多媒体有限责任公司 一种超声波测距传感器
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005291798A (ja) * 2004-03-31 2005-10-20 Sanyo Electric Co Ltd 発信装置、音波センサ及び自走車
WO2005111653A2 (en) * 2004-05-17 2005-11-24 Epos Technologies Limited Acoustic robust synchronization signaling for acoustic positioning system
JP2007040734A (ja) * 2005-08-01 2007-02-15 Nec Corp 送信モードリコメンドシステム、ソーナーシステム、送信モードリコメンド方法、そのプログラム及び記録媒体
JP2007085867A (ja) * 2005-09-21 2007-04-05 Osaka Prefecture 超音波送信器の駆動方法並びに駆動装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010098346A1 (ja) * 2009-02-25 2010-09-02 日本電気株式会社 超音波伝播時間測定システム
US8806947B2 (en) 2009-02-25 2014-08-19 Nec Corporation Ultrasonic wave propagation time measurement system
JP2010210369A (ja) * 2009-03-10 2010-09-24 Univ Of Tsukuba 伝搬時間測定装置、伝搬時間測定方法
WO2011007685A1 (ja) * 2009-07-14 2011-01-20 日本電気株式会社 位置検出システム、送信装置、受信装置及び位置検出方法
JP5664550B2 (ja) * 2009-07-14 2015-02-04 日本電気株式会社 位置検出システム、送信装置、受信装置及び位置検出方法
US9157984B2 (en) 2009-07-14 2015-10-13 Nec Corporation Position detection system, transmission device and reception device, and position detection method
JP2013181809A (ja) * 2012-03-01 2013-09-12 Honda Motor Co Ltd 距離測定方法及び距離測定システム
CN102889968A (zh) * 2012-10-12 2013-01-23 河海大学常州校区 低浓度六氟化硫气体检测的声学方法及其装置

Also Published As

Publication number Publication date
US20100228523A1 (en) 2010-09-09
JPWO2009028591A1 (ja) 2010-12-02
CN101828129B (zh) 2013-01-23
US8280692B2 (en) 2012-10-02
JP5568986B2 (ja) 2014-08-13
CN101828129A (zh) 2010-09-08

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