EP0075302A1 - Dispositif pour mesurer des distances au moyen d'échos ultrasonores - Google Patents

Dispositif pour mesurer des distances au moyen d'échos ultrasonores Download PDF

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Publication number
EP0075302A1
EP0075302A1 EP82108653A EP82108653A EP0075302A1 EP 0075302 A1 EP0075302 A1 EP 0075302A1 EP 82108653 A EP82108653 A EP 82108653A EP 82108653 A EP82108653 A EP 82108653A EP 0075302 A1 EP0075302 A1 EP 0075302A1
Authority
EP
European Patent Office
Prior art keywords
transducer
ultrasound
transmitter
sensor
housing
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.)
Granted
Application number
EP82108653A
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German (de)
English (en)
Other versions
EP0075302B1 (fr
Inventor
Egon Gelhard
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.)
Gelhard Egon
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT82108653T priority Critical patent/ATE14636T1/de
Publication of EP0075302A1 publication Critical patent/EP0075302A1/fr
Application granted granted Critical
Publication of EP0075302B1 publication Critical patent/EP0075302B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
    • 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
    • B06B1/0674—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 and a low impedance backing, e.g. air
    • 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
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general

Definitions

  • the invention is based on a sensor for carrying out the distance measurement according to the ultrasound echo principle, in particular for determining and displaying the proximity distances between vehicles and obstacles in the close range with an ultrasound transmitter and receiver transducer for emitting the ultrasound signals and for receiving the ultrasound signals reflected by the obstacle , wherein the transducer consists of a pot transducer with piezoceramic transducers arranged therein.
  • German patent application P 30 36 081.7 describes a method for distance measurement based on the ultrasound echo principle described, which can be used in particular to determine and display the approach distances between the vehicle and obstacle in the vicinity.
  • the invention specified in claim 1 is therefore based on the object, by using a specially designed ultrasonic sensor in the form of a pot with a narrow, shaped transmitting and / or receiving lobe, to substantially improve the aforementioned sensitivity, measuring accuracy and immunity to interference.
  • the measure of the invention achieves the following essential advantages in the determination and display of the proximity distances between the vehicle and the obstacle in the close range.
  • the sensitivity of the system can be increased since the transmitter and receiver lobes can be formed more narrowly and with sharper contours so that ground reflections can be avoided.
  • a piezoceramic oscillator is glued to the pot-like converter housing 39 with a relatively thick-walled housing shell and the transmission and reception membrane 37 designed as a thin-walled housing base, to which electrical energy is supplied via the connecting line 38.
  • Membrane strength, natural resonance and excitation frequency are coordinated.
  • the frequency range is between 28 and 86 kHz.
  • a working frequency between 29 and 30 kHz has proven to be favorable for a converter housing diameter of approx. 25 mm.
  • the transducer is used as a transmitter, a Shore hardness of 50 to 60 degrees is suitable. If it is used as a receiver, the Shore should not exceed 40 degrees.
  • the actual sensor housing is made of soft plastic or soft rubber with a Shore hardness of approximately 80 degrees.
  • the transducer shown in FIG. 1 can be used in housings with attached funnels of various shapes and cross-sections, the shape of the transmitting and / or receiving lobe achieved by the damping segments still varying depending on the funnel design and funnel length can be.
  • cross-sections shown can also be combined to form funnels with two-level curvatures (e.g. parabolic curve).
  • Such a configuration causes the transmission and reception lobes 101 in the horizontal a large opening angle 48 and in the vertical direction a small opening angle 47 have p fel without interfering, ar.
  • Slots 112 or bores can be provided in the housing 103 for stress-free installation.
  • two transducer housings according to FIGS. 3a and 3b can be combined to form a block, in which case the upper depression accommodates the ultrasonic transmitter and the lower depression the ultrasonic receiver (FIGS. 4a and 4b). .
  • a transverse channel 111 with a semicircular cross section between the two troughs in the block face has proven to be an effective measure. She was in numerous experiments. A theoretical explanation for this could not be found due to the complex boundary conditions.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (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)
EP82108653A 1981-09-23 1982-09-18 Dispositif pour mesurer des distances au moyen d'échos ultrasonores Expired EP0075302B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82108653T ATE14636T1 (de) 1981-09-23 1982-09-18 Sensor fuer die durchfuehrung einer distanzmessung nach dem ultraschall-echoprinzip.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3137745 1981-09-23
DE19813137745 DE3137745A1 (de) 1981-09-23 1981-09-23 Sensor fuer die durchfuehrung der distanzmessung nach dem ultraschalll-echoprinzip

Publications (2)

Publication Number Publication Date
EP0075302A1 true EP0075302A1 (fr) 1983-03-30
EP0075302B1 EP0075302B1 (fr) 1985-07-31

Family

ID=6142353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108653A Expired EP0075302B1 (fr) 1981-09-23 1982-09-18 Dispositif pour mesurer des distances au moyen d'échos ultrasonores

Country Status (5)

Country Link
US (1) US4437032A (fr)
EP (1) EP0075302B1 (fr)
JP (1) JPS5868397A (fr)
AT (1) ATE14636T1 (fr)
DE (2) DE3137745A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185817A (en) * 1984-05-29 1987-07-29 Nissan Motor Ultrasonic rangefinder
EP0308931A2 (fr) * 1987-09-25 1989-03-29 Siemens Aktiengesellschaft Transducteurs à ultrasons avec une caractéristique d'émission et de réception astigmatique
EP0308899A2 (fr) * 1987-09-25 1989-03-29 Siemens Aktiengesellschaft Transducteur à ultrasons avec une caractéristique d'émission et réception astigmatique
DE3832700A1 (de) * 1988-09-27 1990-03-29 Rump Elektronik Tech Apparat und verfahren zum zwecke des kollisions- und auffahrschutzes von fahrzeugen
WO1992002795A3 (fr) * 1990-08-04 1992-08-06 Bosch Gmbh Robert Transducteur ultrasonore
WO1993011527A1 (fr) * 1991-12-05 1993-06-10 Robert Bosch Gmbh Materiau d'amortissement d'ultra-sons
US5229748A (en) * 1989-04-12 1993-07-20 Siemens Aktiengesellschaft Monitoring system for monitoring the window panes of an interior, for example a motor vehicle interior
WO1995002237A1 (fr) * 1993-07-09 1995-01-19 Gec Marconi Ltd. Emetteur-recepteur acoustique
DE4413894A1 (de) * 1994-04-21 1995-10-26 Teves Gmbh Alfred Ultraschallwandler mit asymmetrischer Strahlungscharakteristik
EP0378528B1 (fr) * 1987-03-24 1995-11-02 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Procede pour guider un vehicule automoteur et vehicule automoteur
DE19614885C1 (de) * 1996-04-16 1997-09-04 Bosch Gmbh Robert Sensor zum Senden und/oder Empfangen akustischer Signale
DE10009129A1 (de) * 2000-02-26 2001-08-30 Volkswagen Ag Ultraschallsensor
US6374676B1 (en) 1997-10-07 2002-04-23 Robert Bosch Gmbh Ultrasonic transducer
EP1202249A1 (fr) * 2000-10-26 2002-05-02 Imra Europe S.A. Transducteur étanche pour une array à demi-longeur d'onde
US6465935B1 (en) 1997-06-30 2002-10-15 Robert Bosch Gmbh Ultrasonic transducer
DE102005003398A1 (de) * 2005-01-24 2006-08-03 Endress + Hauser Flowtec Ag Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- und/oder Massendurchflusses

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3347442A1 (de) * 1983-12-29 1985-07-11 Bayerische Motoren Werke Ag Einrichtung zur abstandsmessung, insbesondere fuer kraftfahrzeuge
DE3441684A1 (de) * 1984-11-15 1986-05-15 SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen Elektroakustischer wandler
JPS62102182U (fr) * 1985-11-26 1987-06-29
US4823042A (en) * 1986-07-18 1989-04-18 Rich-Mar Corporation Sonic transducer and method for making the same
JPS6388080U (fr) * 1986-11-26 1988-06-08
GB2225740B (en) * 1988-11-19 1993-05-19 Glyco Metall Werke A method and a device for the manufacture of laminar material for slide elements
DE3934157C2 (de) * 1989-10-12 1999-01-28 Bosch Siemens Hausgeraete Kochmulde
DE3939387A1 (de) * 1989-11-29 1991-06-06 Swf Auto Electric Gmbh Abstandswarnanlage, insbesondere fuer kraftfahrzeuge
JP2560361Y2 (ja) * 1990-12-19 1998-01-21 株式会社イナックス 自動水栓における超音波センサ設置構造
DE4114180C2 (de) * 1991-05-01 2003-04-03 Microsonic Ges Fuer Mikroelekt Ultraschallwandler
US5230921A (en) * 1992-08-04 1993-07-27 Blacktoe Medical, Inc. Flexible piezo-electric membrane
US5505205A (en) * 1993-01-08 1996-04-09 Hewlett-Packard Company Interface element for medical ultrasound transducer
DE19601656B4 (de) * 1996-01-18 2009-07-16 Valeo Schalter Und Sensoren Gmbh Bedämpfter Ultraschallwandler
DE19622777A1 (de) * 1996-06-07 1997-12-11 Bosch Gmbh Robert Sensorsystem zur automatischen relativen Positionskontrolle
DE59712365D1 (de) * 1996-08-21 2005-08-25 Volkswagen Ag Vorrichtung zur Bestimmung des Abstandes von Objekten
JPH10294995A (ja) * 1997-04-21 1998-11-04 Matsushita Electric Ind Co Ltd 防滴型超音波送信器
DE19754891C1 (de) * 1997-12-10 1999-07-15 Fraunhofer Ges Forschung Ultraschallwandler
TW345132U (en) * 1998-03-26 1998-11-11 shi-xiong Li Improved structure for sensor of car backing radar
US6250162B1 (en) * 1998-04-24 2001-06-26 Murata Manufacturing Co., Ltd. Ultrasonic sensor
DE29808915U1 (de) * 1998-05-16 1999-11-25 Hüppe Form Raumtrennsysteme GmbH, 26133 Oldenburg Raumtrennwand
US6268683B1 (en) * 1999-02-26 2001-07-31 M&Fc Holding Company Transducer configurations and related method
US6370086B2 (en) 1999-03-15 2002-04-09 Shih-Hsiung Li Ultrasound sensor for distance measurement
JP2000323959A (ja) 1999-05-14 2000-11-24 Murata Mfg Co Ltd 圧電部品
JP2001065513A (ja) * 1999-08-26 2001-03-16 Toyota Autom Loom Works Ltd 流体圧シリンダの位置検出装置及び該位置検出装置を備えた産業用車両
US7233312B2 (en) * 2000-07-31 2007-06-19 Panaseca, Inc. System and method for optimal viewing of computer monitors to minimize eyestrain
US6592223B1 (en) * 1999-10-07 2003-07-15 Panaseca, Inc. System and method for optimal viewing of computer monitors to minimize eyestrain
DE10159679A1 (de) * 2001-11-30 2003-06-12 Valeo Schalter & Sensoren Gmbh Ultraschallsensoreinheit und Verfahren zur Herstellung
DE10341422A1 (de) * 2003-09-09 2005-03-31 Sick Engineering Gmbh Ultraschallwandleranordnung
DE102004011486A1 (de) * 2004-03-09 2005-09-29 Shih-Hsiung Li Sensoreinrichtung für ein System zur Hinderniserfassung
EP1742505B1 (fr) * 2004-04-26 2014-06-25 Panasonic Corporation Capteur ultrasonore
CN101065766A (zh) * 2004-09-03 2007-10-31 潘那西卡股份有限公司 视觉中心自助式服务机
TWI278731B (en) * 2005-05-09 2007-04-11 Infinite Electronics Inc Self-propelled apparatus for virtual wall system
US20100222926A1 (en) * 2005-05-09 2010-09-02 Ting-Yin Chiu Virtual wall system
EP1906383B1 (fr) * 2006-09-29 2013-11-13 Tung Thih Electronic Co., Ltd. Appareil de transducteur à ultrasons
DE102007036167B4 (de) * 2007-08-02 2017-09-07 BSH Hausgeräte GmbH Vorrichtung zur Aufnahme von Ultraschallsensoren sowie diese enthaltender selbständig verfahrbarer Roboter, insbesondere Staubsammelroboter
DE102007036169B4 (de) * 2007-08-02 2012-06-21 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung mit Ultraschallsensoren und eine solche Vorrichtung enthaltender selbständig fahrender Roboter, insbesondere Staubsammelroboter
JP4915597B2 (ja) * 2008-07-28 2012-04-11 パナソニック株式会社 超音波センサ
DE102008040905A1 (de) * 2008-07-31 2010-02-04 Robert Bosch Gmbh Ultraschallsensor
JPWO2011067835A1 (ja) * 2009-12-02 2013-04-18 三菱電機株式会社 空中超音波センサ
WO2011090464A1 (fr) * 2010-01-21 2011-07-28 Brown James L Procédé et appareil destinés à la détection de défauts d'arc et de leur localisation dans des câblages électriques confinés
JP5099175B2 (ja) * 2010-05-28 2012-12-12 株式会社村田製作所 超音波センサ
DE102012209238A1 (de) * 2012-05-31 2013-12-05 Robert Bosch Gmbh Ultraschallsensor sowie Vorrichtung und Verfahren zur Messung eines Abstands zwischen einem Fahrzeug und einem Hindernis

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912605A (en) * 1955-12-05 1959-11-10 Tibbetts Lab Inc Electromechanical transducer
DE1811098A1 (de) * 1968-11-23 1970-06-11 Bandelin Electronic Kg Grossflaechige Ultraschallabstrahlplatte
US3876890A (en) * 1974-04-24 1975-04-08 Saratoga Systems Low reflected energy transmission structure transducer head
US3943388A (en) * 1974-06-27 1976-03-09 Fred M. Dellorfano, Jr. Electroacoustic transducer of the flexural vibrating diaphragm type
EP0048958A1 (fr) * 1980-09-25 1982-04-07 Egon Gelhard Circuit pour déterminer et afficher le dépassement d'écarts prédéterminés minimaux entre un véhicule et un obstacle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912605A (en) * 1955-12-05 1959-11-10 Tibbetts Lab Inc Electromechanical transducer
DE1811098A1 (de) * 1968-11-23 1970-06-11 Bandelin Electronic Kg Grossflaechige Ultraschallabstrahlplatte
US3876890A (en) * 1974-04-24 1975-04-08 Saratoga Systems Low reflected energy transmission structure transducer head
US3943388A (en) * 1974-06-27 1976-03-09 Fred M. Dellorfano, Jr. Electroacoustic transducer of the flexural vibrating diaphragm type
EP0048958A1 (fr) * 1980-09-25 1982-04-07 Egon Gelhard Circuit pour déterminer et afficher le dépassement d'écarts prédéterminés minimaux entre un véhicule et un obstacle

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2186690A (en) * 1984-05-29 1987-08-19 Nissan Motor Ultrasonic rangefinder
GB2185817A (en) * 1984-05-29 1987-07-29 Nissan Motor Ultrasonic rangefinder
EP0378528B1 (fr) * 1987-03-24 1995-11-02 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Procede pour guider un vehicule automoteur et vehicule automoteur
EP0308931A2 (fr) * 1987-09-25 1989-03-29 Siemens Aktiengesellschaft Transducteurs à ultrasons avec une caractéristique d'émission et de réception astigmatique
EP0308899A2 (fr) * 1987-09-25 1989-03-29 Siemens Aktiengesellschaft Transducteur à ultrasons avec une caractéristique d'émission et réception astigmatique
US4907207A (en) * 1987-09-25 1990-03-06 Siemens Aktiengesellschaft Ultrasound transducer having astigmatic transmission/reception characteristic
EP0308899A3 (fr) * 1987-09-25 1990-03-14 Siemens Aktiengesellschaft Transducteur à ultrasons avec une caractéristique d'émission et réception astigmatique
EP0308931A3 (en) * 1987-09-25 1990-03-21 Siemens Aktiengesellschaft Ultrasonic transducer with astigmatic transmission-reception characteristics
DE3832700A1 (de) * 1988-09-27 1990-03-29 Rump Elektronik Tech Apparat und verfahren zum zwecke des kollisions- und auffahrschutzes von fahrzeugen
US5229748A (en) * 1989-04-12 1993-07-20 Siemens Aktiengesellschaft Monitoring system for monitoring the window panes of an interior, for example a motor vehicle interior
US5446332A (en) * 1990-08-04 1995-08-29 Robert Bosch Gmbh Ultrasonic transducer
WO1992002795A3 (fr) * 1990-08-04 1992-08-06 Bosch Gmbh Robert Transducteur ultrasonore
WO1993011527A1 (fr) * 1991-12-05 1993-06-10 Robert Bosch Gmbh Materiau d'amortissement d'ultra-sons
WO1995002237A1 (fr) * 1993-07-09 1995-01-19 Gec Marconi Ltd. Emetteur-recepteur acoustique
DE4413894A1 (de) * 1994-04-21 1995-10-26 Teves Gmbh Alfred Ultraschallwandler mit asymmetrischer Strahlungscharakteristik
DE4413894C2 (de) * 1994-04-21 2002-12-12 Teves Gmbh Alfred Biegewandler in Topfform
EP0802521A3 (fr) * 1996-04-16 1999-09-01 Robert Bosch Gmbh Transducteur pour l'emission et/ou la réception des signaux acoustiques
EP0802521A2 (fr) * 1996-04-16 1997-10-22 Robert Bosch Gmbh Transducteur pour l'emission et/ou la réception des signaux acoustiques
DE19614885C1 (de) * 1996-04-16 1997-09-04 Bosch Gmbh Robert Sensor zum Senden und/oder Empfangen akustischer Signale
US6465935B1 (en) 1997-06-30 2002-10-15 Robert Bosch Gmbh Ultrasonic transducer
EP0993344B2 (fr) † 1997-06-30 2008-10-15 Robert Bosch Gmbh Transducteur ultrasonore
US6374676B1 (en) 1997-10-07 2002-04-23 Robert Bosch Gmbh Ultrasonic transducer
DE10009129A1 (de) * 2000-02-26 2001-08-30 Volkswagen Ag Ultraschallsensor
EP1202249A1 (fr) * 2000-10-26 2002-05-02 Imra Europe S.A. Transducteur étanche pour une array à demi-longeur d'onde
DE102005003398A1 (de) * 2005-01-24 2006-08-03 Endress + Hauser Flowtec Ag Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- und/oder Massendurchflusses

Also Published As

Publication number Publication date
US4437032A (en) 1984-03-13
DE3265088D1 (en) 1985-09-05
DE3137745A1 (de) 1983-04-07
JPH048999B2 (fr) 1992-02-18
ATE14636T1 (de) 1985-08-15
EP0075302B1 (fr) 1985-07-31
JPS5868397A (ja) 1983-04-23

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