DE112021005204T5 - Ultraschallgenerator, Wandler und Objektdetektor - Google Patents

Ultraschallgenerator, Wandler und Objektdetektor Download PDF

Info

Publication number
DE112021005204T5
DE112021005204T5 DE112021005204.7T DE112021005204T DE112021005204T5 DE 112021005204 T5 DE112021005204 T5 DE 112021005204T5 DE 112021005204 T DE112021005204 T DE 112021005204T DE 112021005204 T5 DE112021005204 T5 DE 112021005204T5
Authority
DE
Germany
Prior art keywords
ultrasonic waves
electrode
voltage application
electrodes
directivities
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.)
Pending
Application number
DE112021005204.7T
Other languages
German (de)
English (en)
Inventor
Ippei SUGAE
Hisashi Inaba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Corp
Original Assignee
Aisin Corp
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 Aisin Corp filed Critical Aisin Corp
Publication of DE112021005204T5 publication Critical patent/DE112021005204T5/de
Pending legal-status Critical Current

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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B06B1/0648—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element of rectangular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B06B1/0662—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/102—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves using transmission of pulses having some particular characteristics
    • G01S15/104—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves using transmission of pulses having some particular characteristics wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/42—Simultaneous measurement of distance and other co-ordinates
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/521—Constructional features
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/524—Transmitters
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/527—Extracting wanted echo signals
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
    • 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
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • 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
    • H10N30/80—Constructional details
    • H10N30/802—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits
    • 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
    • H10N30/80—Constructional details
    • H10N30/87—Electrodes or interconnections, e.g. leads or terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
DE112021005204.7T 2020-10-02 2021-09-30 Ultraschallgenerator, Wandler und Objektdetektor Pending DE112021005204T5 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020-167922 2020-10-02
JP2020167922 2020-10-02
PCT/JP2021/036290 WO2022071522A1 (ja) 2020-10-02 2021-09-30 超音波発生装置、振動子、および、物体検出装置

Publications (1)

Publication Number Publication Date
DE112021005204T5 true DE112021005204T5 (de) 2023-08-10

Family

ID=80950571

Family Applications (1)

Application Number Title Priority Date Filing Date
DE112021005204.7T Pending DE112021005204T5 (de) 2020-10-02 2021-09-30 Ultraschallgenerator, Wandler und Objektdetektor

Country Status (5)

Country Link
US (1) US20230336921A1 (https=)
JP (1) JP7464140B2 (https=)
CN (1) CN116325791A (https=)
DE (1) DE112021005204T5 (https=)
WO (1) WO2022071522A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025201939A1 (de) * 2024-03-26 2025-10-02 Robert Bosch Gmbh Ultraschallsensor für ein fahrzeug

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119317849A (zh) * 2022-08-08 2025-01-14 株式会社爱信 超声波产生装置、振子以及物体检测装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513706B1 (https=) 1969-03-06 1980-04-10
JP2001289939A (ja) 2000-02-02 2001-10-19 Mitsubishi Electric Corp 超音波送受信装置及び車両周辺障害物検出装置
JP4274679B2 (ja) 2000-08-11 2009-06-10 株式会社日本自動車部品総合研究所 車両クリアランスソナー用超音波センサ
JP5513706B2 (ja) 2006-08-24 2014-06-04 パナソニック株式会社 位置検出システム

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55126876A (en) * 1979-03-26 1980-10-01 Japan Radio Co Ltd Underwater transmitter-receiver using discrimination code
JPS58156295A (ja) * 1982-03-12 1983-09-17 Yokogawa Hokushin Electric Corp 圧電変換器
JPS61114178A (ja) * 1984-11-08 1986-05-31 Omron Tateisi Electronics Co マトリクスアレイ型超音波振動子
JPS61294998A (ja) * 1985-06-21 1986-12-25 Toshiba Corp 高分子圧電型超音波探触子
JPH0443957A (ja) * 1990-06-11 1992-02-13 Hitachi Ltd 超音波撮像方式
JP3191804B2 (ja) * 1999-07-08 2001-07-23 日本電気株式会社 音響画像処理装置
JP4057812B2 (ja) * 2001-12-28 2008-03-05 古野電気株式会社 超音波送受信装置およびスキャニングソナー
JP2004297951A (ja) * 2003-03-27 2004-10-21 Olympus Corp 超音波振動子及び超音波モータ
JP5310211B2 (ja) * 2009-04-09 2013-10-09 スミダコーポレーション株式会社 超音波モータ
JP2012249950A (ja) * 2011-06-06 2012-12-20 Olympus Corp 超音波探触子及びそれを用いたイメージング装置
CN104090266A (zh) * 2014-06-30 2014-10-08 上海科泰信息技术有限公司 一种音频声波定位系统
JP6331200B2 (ja) * 2016-08-02 2018-05-30 国立研究開発法人 海上・港湾・航空技術研究所 超音波格子化３次元電気化撮像装置
EP3555660B1 (en) * 2016-12-15 2021-10-13 Dalhousie University Systems and methods for ultrasound beamforming using coherently compounded fresnel focusing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513706B1 (https=) 1969-03-06 1980-04-10
JP2001289939A (ja) 2000-02-02 2001-10-19 Mitsubishi Electric Corp 超音波送受信装置及び車両周辺障害物検出装置
JP4274679B2 (ja) 2000-08-11 2009-06-10 株式会社日本自動車部品総合研究所 車両クリアランスソナー用超音波センサ
JP5513706B2 (ja) 2006-08-24 2014-06-04 パナソニック株式会社 位置検出システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025201939A1 (de) * 2024-03-26 2025-10-02 Robert Bosch Gmbh Ultraschallsensor für ein fahrzeug

Also Published As

Publication number Publication date
JPWO2022071522A1 (https=) 2022-04-07
JP7464140B2 (ja) 2024-04-09
WO2022071522A1 (ja) 2022-04-07
US20230336921A1 (en) 2023-10-19
CN116325791A (zh) 2023-06-23

Similar Documents

Publication Publication Date Title
DE102016105153B4 (de) Verfahren zum Betreiben eines Ultraschallsensors eines Kraftfahrzeugs mit Bestimmung der Luftfeuchtigkeit, Fahrerassistenzsystem sowie Kraftfahrzeug
WO2003070517A1 (de) Verfahren zum einparken eines fahrzeugs
EP0970390A1 (de) Verfahren zur bestimmung des senkrechten abstandes zwischen einem objekt und einer sich örtlich verändernden einrichtung
EP2569650A1 (de) Verfahren und vorrichtung zur bestimmung der position eines objektes relativ zu einem fahrzeug, insbesondere einem kraftfahrzeug, zur verwendung in einem fahrerassistenzsystem des fahrzeuges
DE102019130687A1 (de) Entfernungsdetektionsvorrichtung und eine Objektdetektionsvorrichtung
DE102009003049A1 (de) Verfahren zur Funktionsprüfung eines Ultraschallsensors an einem Kraftfahrzeug, Verfahren zum Betrieb eines Ultraschallsensors an einem Kraftfahrzeug und Abstandsmessvorrichtung mit mindestens einem Ultraschallsensor zur Verwendung in einem Kraftfahrzeug
DE102011052377A1 (de) Hinderniserkennungsvorrichtung für Fahrzeuge
DE102018220001A1 (de) Objekterfassungsvorrichtung
DE102018109318A1 (de) Verfahren zum Betreiben einer Ultraschallsensorvorrichtung für ein Kraftfahrzeug mit Wechsel zwischen codierten und uncodierten Messungen, Ultraschallsensorvorrichtung sowie Fahrerassistenzsystem
DE112021005204T5 (de) Ultraschallgenerator, Wandler und Objektdetektor
DE102018121962B3 (de) Verfahren zum Erfassen eines Objekts in einem Umgebungsbereich eines Fahrzeugs durch Bestimmung einer Doppler-Verschiebung mittels eines künstlichen neuronalen Netzes, Recheneinrichtung sowie Ultraschallsensorvorrichtung
DE102018103551B4 (de) Verfahren zum Charakterisieren eines Objekts in einem Umgebungsbereich eines Kraftfahrzeugs anhand von zuvor gelernten Kurvenparametern, Sensorvorrichtung sowie Fahrerassistenzsystem
DE102020100047A1 (de) Objekterfassungssystem und Objekterfassungsvorrichtung
DE112019002414T5 (de) Objekterfassungsvorrichtung
DE102018103560B4 (de) Verfahren zur Charakterisierung eines Objekts in einem Umgebungsbereich eines Kraftfahrzeugs durch Vergleich eines Empfangssignals eines Abstandssensors mit einer vorbestimmten Kurve, Sensorvorrichtung sowie Fahrerassistenzsystem
DE102018101324B4 (de) Verfahren zum Bestimmen einer Position eines Objekts in einem Umgebungsbereich eines Kraftfahrzeugs durch Aussenden eines Ultraschallsignals mit verschiedenen Frequenzen, Recheneinrichtung sowie Ultraschallsensorvorrichtung
DE102018100567A1 (de) Verfahren zum Bestimmen einer Position eines Objekts mit Richtungsschätzung mittels eines Ultraschallsensors, Steuergerät, Ultraschallsensorvorrichtung sowie Fahrerassistenzsystem
DE102020106498B4 (de) Objekterfassungsvorrichtung
DE102022107033A1 (de) Abstandsmessvorrichtung
EP3896487B1 (de) Verfahren und vorrichtung zum erfassen von umgebungsobjekten mit einem ultraschall-sensorsystem sowie ultraschall-sensorsystem
WO2019219420A1 (de) Verfahren zum schätzen einer höhe eines objekts in einem umgebungsbereich eines kraftfahrzeugs mittels eines ultraschallsensors durch bestimmung von wahrscheinlichkeitswerten und extraktion von parametern
DE102018124050A1 (de) Verfahren zum Betreiben eines Ultraschallsensors für ein Fahrzeug mit Berücksichtigung eines Frequenzunterschieds zwischen einem Rohsignal und einem Referenzsignal, Recheneinrichtung sowie Ultraschallsensorvorrichtung
DE102018117516B3 (de) Erkennung und Eliminierung von Störsignalen durch kodierte Ultraschallemissionen an einem Ultraschallsensor
DE102017129734B4 (de) Verfahren zum Betreiben eines Ultraschallsensors eines Kraftfahrzeugs mit Trennung eines detektierten Echos, Ultraschallsensorvorrichtung sowie Fahrerassistenzsystem
DE102017126828B4 (de) Verfahren zum Betreiben eines Ultraschallsensors für ein Kraftfahrzeug mit Unterdrückung von Störungen in einem zweiten Empfangspfad, Ultraschallsensor sowie Fahrerassistenzsystem

Legal Events

Date Code Title Description
R012 Request for examination validly filed
R016 Response to examination communication