EP0128450A3 - Ultrasonic transducteur - Google Patents

Ultrasonic transducteur Download PDF

Info

Publication number
EP0128450A3
EP0128450A3 EP84106099A EP84106099A EP0128450A3 EP 0128450 A3 EP0128450 A3 EP 0128450A3 EP 84106099 A EP84106099 A EP 84106099A EP 84106099 A EP84106099 A EP 84106099A EP 0128450 A3 EP0128450 A3 EP 0128450A3
Authority
EP
European Patent Office
Prior art keywords
ultrasonic
reflector
objects
facing surface
ultra sound
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.)
Withdrawn
Application number
EP84106099A
Other languages
German (de)
French (fr)
Other versions
EP0128450A2 (en
Inventor
Reinhard Dr. Lerch
Günther Gräbner
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0128450A2 publication Critical patent/EP0128450A2/en
Publication of EP0128450A3 publication Critical patent/EP0128450A3/en
Withdrawn legal-status Critical Current

Links

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
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
    • 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
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/32—Sound-focusing or directing, e.g. scanning characterised by the shape of the source
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S310/00—Electrical generator or motor structure
    • Y10S310/80—Piezoelectric polymers, e.g. PVDF

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Der Ultraschall-Sensor (2) zur Objekterfassung in Luft oder anderen Gasen enthält einen ersten Ultraschallwandler (4) mit einem Piezokörper (10) als Sender. Erfindungsgemäß ist ein Reflektor (6) vorgesehen, dessen dem ersten Ultra­ schallwandler (4) zugewandte Oberfläche einen Abschnitt eines Ellipsoids bildet, und daß zwischen dem ersten Ultra­ schallwandler (4) und dem Reflektor (6) ein zweiter Ultraschall­ wandler (8) vorgesehen ist, der im ersten Brennpunkt des Re­ flektors (6) angeordnet ist. Außerdem bildet die dem Reflektor (6) zugewandte Oberfläche (20) des zweiten Ultraschallwand­ lers (8) eine Kalotte. Durch diese Vergrößerung der Empfangs­ apertur können Objekte erfaßt werden, deren Reflexionsflä­ chennormale um einen Objektlagewinkel, die wesentlich grö­ ßer sind als ±3°, zur Schallkeulenachse geneigt sind. Außer­ dem kann man auch Objekte mit einer gewölbten Reflexions­ fläche eindeutig erfassen. The ultrasonic sensor (2) for object detection in air or other gases contains a first ultrasonic transducer (4) with a piezo body (10) as a transmitter. According to the invention a reflector (6) is provided, the first of which is Ultra sound transducer (4) facing surface a section of an ellipsoid, and that between the first ultra sound transducer (4) and the reflector (6) a second ultrasound converter (8) is provided, which is in the first focus of Re flector (6) is arranged. It also forms the reflector (6) facing surface (20) of the second ultrasonic wall lers (8) a calotte. By this increase in reception apertures objects can be detected, the reflection surface normal to an object position angle, which is considerably larger are greater than ± 3 °, are inclined to the beam axis. Except that can also be used for objects with a curved reflection Clearly capture the area.

EP84106099A 1983-06-09 1984-05-29 Ultrasonic transducteur Withdrawn EP0128450A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833320935 DE3320935A1 (en) 1983-06-09 1983-06-09 ULTRASONIC SENSOR
DE3320935 1983-06-09

Publications (2)

Publication Number Publication Date
EP0128450A2 EP0128450A2 (en) 1984-12-19
EP0128450A3 true EP0128450A3 (en) 1985-03-13

Family

ID=6201108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106099A Withdrawn EP0128450A3 (en) 1983-06-09 1984-05-29 Ultrasonic transducteur

Country Status (4)

Country Link
US (1) US4528853A (en)
EP (1) EP0128450A3 (en)
JP (1) JPS6024473A (en)
DE (1) DE3320935A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8400504A (en) * 1984-02-16 1985-09-16 Optische Ind De Oude Delft Nv DEVICE FOR NON-TOGETIC GRINDING OF CONCREMENTS IN A BODY.
JPS63275975A (en) * 1987-05-07 1988-11-14 Yokogawa Electric Corp Transceiver of ultrasonic wave range finder
US4859897A (en) * 1988-04-07 1989-08-22 Frank Massa Directional waterproof ultrasonic transducer for operating in air
DE3905099C1 (en) * 1989-02-20 1990-08-09 Schoeller Transportautomation Gmbh, 5120 Herzogenrath, De
JPH02223881A (en) * 1989-02-23 1990-09-06 Omron Tateisi Electron Co Ultrasonic sensor
DE3907605C2 (en) * 1989-03-09 1996-04-04 Dornier Medizintechnik Shock wave source
US5176631A (en) * 1989-09-05 1993-01-05 Pacesetter Infusion, Ltd. Ultrasonic air-in-line detector for detecting entrained air in a medication infusion system
US5126616A (en) * 1989-09-05 1992-06-30 Pacesetter Infusion, Ltd. Ultrasonic transducer electrical interface assembly
US5064412A (en) * 1989-09-05 1991-11-12 Pacesetter Infusion, Ltd. Ultrasonic air-in-line detector for a medication infusion system
US5053747A (en) * 1989-09-05 1991-10-01 Pacesetter Infusion, Inc. Ultrasonic air-in-line detector self-test technique
US5000663A (en) * 1989-09-05 1991-03-19 Pacesetter Infusion, Ltd. Automatic tubing lock for ultrasonic sensor interface
WO1992017795A1 (en) * 1991-03-28 1992-10-15 Kdg Mobrey Limited Acoustic system for use in pulse echo rangefinding
NZ243294A (en) * 1991-06-25 1995-04-27 Commw Scient Ind Res Org Time of flight of acoustic wave packets through fluid: reduction of higher order acoustic mode effects
DE4435156C2 (en) * 1994-09-30 2002-06-27 Microsonic Ges Fuer Mikroelekt ultrasonic sensor
US5736642A (en) * 1997-01-08 1998-04-07 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Nonlinear ultrasonic scanning to detect material defects
DE69736630D1 (en) 1997-06-19 2006-10-19 St Microelectronics Srl Hermetically sealed sensor with movable microstructure
US6417602B1 (en) 1998-03-03 2002-07-09 Sensotech Ltd. Ultrasonic transducer
DE102005012193B3 (en) * 2005-03-15 2006-08-17 Landis+Gyr Gmbh Ultrasound head e.g. for testing materials for cracks, has sound signals summated as useful signal for coupling into or received from medium
BRPI0615382B1 (en) * 2005-08-26 2018-02-06 Nippon Steel & Sumitomo Metal Corporation “ULTRASONIC TESTING METHOD, ULTRASONIC TESTING EQUIPMENT IMPLEMENTING THE SUCH METHOD, AND SEAMLESS PIPE OR PIPE MANUFACTURING METHOD”
EP3117784B1 (en) 2009-07-08 2018-12-26 Sanuwave, Inc. Usage of intracorporeal pressure shock waves in medicine
ITMO20090219A1 (en) * 2009-09-01 2011-03-02 Imal Srl HIGH EFFICIENCY ULTRASOUND DEVICE.
RU2467500C2 (en) * 2009-12-31 2012-11-20 Зао "Сатурн Хай-Тек" Acoustic system with adjustable beam pattern
ITTO20120542A1 (en) 2012-06-20 2013-12-21 St Microelectronics Srl MICROELETTROMECHANICAL DEVICE WITH SIGNAL INSERTION THROUGH A PROTECTIVE HOOD AND METHOD FOR CHECKING A MICROELECTROMECHANICAL DEVICE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399820A (en) * 1942-09-02 1946-05-07 Rca Corp Piezoelectric apparatus
US3251219A (en) * 1961-07-05 1966-05-17 Siemens Reineger Werke Ag Transceiving ultrasonic impulses in medical diagnostics
US4203162A (en) * 1964-04-10 1980-05-13 The United States Of America As Represented By The Secretary Of The Navy Electrically steerable spherical hydrophone array

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR70023E (en) * 1956-08-11 1959-02-02 Realisations Ultrasoniques Sa Method and device for the automatic control of sheet material, in particular sheet metal by means of ultrasound
US3106839A (en) * 1958-03-05 1963-10-15 Automation Ind Inc Ultrasonic transducer
US3912954A (en) * 1974-01-14 1975-10-14 Schaub Engineering Company Acoustic antenna
JPS5593394A (en) * 1979-01-10 1980-07-15 Toshiba Corp Sound detector
FR2473242A1 (en) * 1980-01-08 1981-07-10 Thomson Csf ACTIVE DOME ELECTROACOUSTIC TRANSDUCER

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399820A (en) * 1942-09-02 1946-05-07 Rca Corp Piezoelectric apparatus
US3251219A (en) * 1961-07-05 1966-05-17 Siemens Reineger Werke Ag Transceiving ultrasonic impulses in medical diagnostics
US4203162A (en) * 1964-04-10 1980-05-13 The United States Of America As Represented By The Secretary Of The Navy Electrically steerable spherical hydrophone array

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ETZ, Band 103, Heft 10, 1982, Seiten 518-519, Berlin, DE; H.-C. MÜNZING: "Distanz-Sensor für grosse Schaltabstände" *
PATENTS ABSTRACTS OF JAPAN, Band 4, Nr. 141 (E-28)[623], 4. Oktober 1980, Seite 136 E 28; & JP-A-55 093 394 (TOKYO SHIBAURA DENKI K.K.) 15-07-1980 *

Also Published As

Publication number Publication date
US4528853A (en) 1985-07-16
JPS6024473A (en) 1985-02-07
EP0128450A2 (en) 1984-12-19
DE3320935A1 (en) 1984-12-13

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): DE FR GB IT SE

PUAL Search report despatched

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Effective date: 19850827

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18D Application deemed to be withdrawn

Effective date: 19890627

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LERCH, REINHARD, DR.

Inventor name: GRAEBNER, GUENTHER