EP0807924A3 - Sound or ultrasound transducer - Google Patents

Sound or ultrasound transducer Download PDF

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Publication number
EP0807924A3
EP0807924A3 EP97105884A EP97105884A EP0807924A3 EP 0807924 A3 EP0807924 A3 EP 0807924A3 EP 97105884 A EP97105884 A EP 97105884A EP 97105884 A EP97105884 A EP 97105884A EP 0807924 A3 EP0807924 A3 EP 0807924A3
Authority
EP
European Patent Office
Prior art keywords
front surface
sound
webs
ultrasound
transducer element
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
EP97105884A
Other languages
German (de)
French (fr)
Other versions
EP0807924A2 (en
EP0807924B1 (en
Inventor
Manfred Eckert
Karl Flögel
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.)
Endress and Hauser SE and Co KG
Original Assignee
Endress and Hauser SE and Co KG
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 Endress and Hauser SE and Co KG filed Critical Endress and Hauser SE and Co KG
Publication of EP0807924A2 publication Critical patent/EP0807924A2/en
Publication of EP0807924A3 publication Critical patent/EP0807924A3/en
Application granted granted Critical
Publication of EP0807924B1 publication Critical patent/EP0807924B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B06B1/0607—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 multiple elements
    • B06B1/0611—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 multiple elements in a pile
    • B06B1/0618—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 multiple elements in a pile of piezo- and non-piezoelectric elements, e.g. 'Tonpilz'
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

Es ist ein Schall- oder Ultraschallsensor zum Senden und/oder Empfangen von Schall oder Ultraschall vorgesehen, der mechanisch robust und chemisch beständig ist und der eine einstellbare Abstrahlcharakteristik aufweist, z.B. mit einem vorzugweise geringen Öffnungswinkel aufweist,
mit einem Abstrahlelement (3), das eine ebene Frontfläche (34) hat, und einem Wandlerelement (1), wobei das Wandlerelement (1) die Frontfläche (34) derart in Schwingungen aufgrund einer Anregungsfrequenz versetzt, daß die gesamte Frontfläche (34) nahezu gleichphasige Auslenkungen mit nahezu gleichgroßer Amplitude parallel zur Flächennormalen auf die Frontflache (34) ausführt und bei dem auf der Frontfläche konzentrische Stege (32),
angeordnet sind, wobei zwischen zwei benachbarten Stegen (32) jeweils ein konzentrischer Spalt (33) besteht und eine Scheibe (5) den Schall- oder Ultraschallsensor frontbündig abschließt, die fest mit den Stegen (32) verbunden ist und die nicht mit Stegen (32) verbundene, als Membranen (51) dienende Segmente aufweist.

Figure 00000001
A sound or ultrasound sensor is provided for transmitting and / or receiving sound or ultrasound, which is mechanically robust and chemically resistant and which has an adjustable radiation characteristic, for example with a preferably small opening angle,
with a radiating element (3), which has a flat front surface (34), and a transducer element (1), the transducer element (1) causing the front surface (34) to vibrate due to an excitation frequency such that the entire front surface (34) almost executes in-phase deflections with an almost equally large amplitude parallel to the surface normal to the front surface (34) and with the webs (32) concentric on the front surface,
are arranged, there being a concentric gap (33) between each two adjacent webs (32) and a disc (5) closing the front of the sound or ultrasonic sensor, which is firmly connected to the webs (32) and which is not connected to webs (32 ) connected segments serving as membranes (51).
Figure 00000001
EP97105884A 1996-05-18 1997-04-10 Sound or ultrasound transducer Expired - Lifetime EP0807924B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19620133A DE19620133C2 (en) 1996-05-18 1996-05-18 Sound or ultrasonic sensor
DE19620133 1996-05-18

Publications (3)

Publication Number Publication Date
EP0807924A2 EP0807924A2 (en) 1997-11-19
EP0807924A3 true EP0807924A3 (en) 1999-06-02
EP0807924B1 EP0807924B1 (en) 2002-12-11

Family

ID=7794713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105884A Expired - Lifetime EP0807924B1 (en) 1996-05-18 1997-04-10 Sound or ultrasound transducer

Country Status (5)

Country Link
US (1) US5726952A (en)
EP (1) EP0807924B1 (en)
CA (1) CA2203583C (en)
DE (2) DE19620133C2 (en)
HU (1) HU216670B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19758243A1 (en) * 1997-12-30 1999-07-15 Endress Hauser Gmbh Co Sound converter system
DE10156259A1 (en) * 2001-11-09 2003-05-22 Valeo Schalter & Sensoren Gmbh Ultrasonic sensor and method for manufacturing an ultrasonic sensor
US7117738B2 (en) * 2003-10-02 2006-10-10 Denso Corporation Liquid level detecting apparatus
AT413890B (en) * 2004-02-27 2006-07-15 Univ Wien Tech METHOD AND SENSOR DEVICE FOR OBTAINING INFORMATION ON THE POSITION OF AN OBJECT WITH AN ULTRASOUND SENSOR
DE102004020895B4 (en) * 2004-04-28 2012-05-24 Endress + Hauser Gmbh + Co. Kg Device for determining and / or monitoring the level of a medium
DE102005056895A1 (en) * 2005-11-28 2007-05-31 Endress + Hauser Gmbh + Co. Kg Device for determining and monitoring the fill level of a product in a container according to the transit time measurement method
KR101464769B1 (en) 2006-01-31 2014-11-24 코니카 미놀타 가부시키가이샤 Ultrasonic probe
DE102006058926B4 (en) * 2006-12-12 2020-09-24 Endress+Hauser SE+Co. KG Device for determining and / or monitoring a process variable
FR2931016B1 (en) * 2008-05-07 2010-08-13 Ixsea ACOUSTIC ANTENNA WITH INTEGRATED PRINTED CIRCUITS
KR101593994B1 (en) * 2009-09-04 2016-02-16 삼성전자주식회사 High power ultrasonic transducer
US8797830B2 (en) * 2011-02-02 2014-08-05 General Monitors, Inc. Explosion-proof acoustic source for hazardous locations
DE102012201884A1 (en) 2012-02-09 2013-08-14 Robert Bosch Gmbh transducer
TWI487886B (en) * 2014-03-26 2015-06-11 Univ Nat Kaohsiung Applied Sci Integrated Sensing Device with Ultrasonic Transducer and Microphone and Its Method
US9506833B2 (en) 2014-03-26 2016-11-29 General Monitors, Inc. Ultrasonic gas leak detectors and testing methods
GB201408833D0 (en) * 2014-05-19 2014-07-02 Skoogmusic Ltd Control apparatus
DE102015113561A1 (en) 2015-08-17 2017-02-23 Endress + Hauser Flowtec Ag Ultrasonic transducers for use in ultrasonic flowmeters for measuring the flow rate or volume flow of media in a pipeline, and a method of making such an ultrasonic transducer
US10632499B2 (en) * 2016-12-09 2020-04-28 Sensus USA, Inc. Thickness mode transducers and related devices and methods
DE102018200324A1 (en) * 2018-01-11 2019-07-11 Robert Bosch Gmbh Ultrasonic sensor and fluid tank with ultrasonic sensor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949349A (en) * 1972-04-13 1976-04-06 Fred M. Dellorfano, Jr. Dual electroacoustic transducers
US4333028A (en) * 1980-04-21 1982-06-01 Milltronics Ltd. Damped acoustic transducers with piezoelectric drivers
EP0590799A2 (en) * 1992-09-04 1994-04-06 Milltronics Ltd. Acoustic transducer
US5452267A (en) * 1994-01-27 1995-09-19 Magnetrol International, Inc. Midrange ultrasonic transducer

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943297A (en) * 1950-04-27 1960-06-28 Raymond L Steinberger Multiple element electroacoustic transducer
US3370186A (en) * 1965-02-05 1968-02-20 Blackstone Corp Ultrasonic transducers
US3457543A (en) * 1968-02-26 1969-07-22 Honeywell Inc Transducer for producing two coaxial beam patterns of different frequencies
US3739327A (en) * 1970-12-16 1973-06-12 Dynamics Corp Massa Div Electroacoustic transducers of the mass loaded vibratile piston type
JPS52131676A (en) * 1976-04-27 1977-11-04 Tokyo Shibaura Electric Co Probe for ultrasonic diagnostic device
US4183007A (en) * 1978-02-22 1980-01-08 Fischer & Porter Company Ultrasonic transceiver
US4246449A (en) * 1979-04-24 1981-01-20 Polaroid Corporation Electrostatic transducer having optimum sensitivity and damping
CA1136257A (en) * 1980-04-21 1982-11-23 Stanley Panton Broadly tuned directional transducer
US4633119A (en) * 1984-07-02 1986-12-30 Gould Inc. Broadband multi-resonant longitudinal vibrator transducer
DE3721209C2 (en) * 1987-06-26 1997-04-30 Grieshaber Vega Kg Sound / ultrasonic measuring device
US5515342A (en) * 1988-12-22 1996-05-07 Martin Marietta Corporation Dual frequency sonar transducer assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949349A (en) * 1972-04-13 1976-04-06 Fred M. Dellorfano, Jr. Dual electroacoustic transducers
US4333028A (en) * 1980-04-21 1982-06-01 Milltronics Ltd. Damped acoustic transducers with piezoelectric drivers
EP0590799A2 (en) * 1992-09-04 1994-04-06 Milltronics Ltd. Acoustic transducer
US5452267A (en) * 1994-01-27 1995-09-19 Magnetrol International, Inc. Midrange ultrasonic transducer

Also Published As

Publication number Publication date
CA2203583A1 (en) 1997-11-18
DE59708924D1 (en) 2003-01-23
HUP9700904A3 (en) 1998-12-28
HUP9700904A2 (en) 1998-04-28
DE19620133C2 (en) 2001-09-13
EP0807924A2 (en) 1997-11-19
HU9700904D0 (en) 1997-07-28
US5726952A (en) 1998-03-10
DE19620133A1 (en) 1997-11-27
HU216670B (en) 1999-08-30
CA2203583C (en) 2000-02-08
EP0807924B1 (en) 2002-12-11

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