DE19820419A1 - Ultraschallwandler - Google Patents

Ultraschallwandler

Info

Publication number
DE19820419A1
DE19820419A1 DE19820419A DE19820419A DE19820419A1 DE 19820419 A1 DE19820419 A1 DE 19820419A1 DE 19820419 A DE19820419 A DE 19820419A DE 19820419 A DE19820419 A DE 19820419A DE 19820419 A1 DE19820419 A1 DE 19820419A1
Authority
DE
Germany
Prior art keywords
ultrasonic transducer
coupling layer
transducer according
coupling
piezoelectric disc
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.)
Ceased
Application number
DE19820419A
Other languages
German (de)
English (en)
Inventor
Thomas Hahn
Matthias Molitor
Thomas Trautmann
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to DE19820419A priority Critical patent/DE19820419A1/de
Priority to PCT/DE1999/001402 priority patent/WO1999057526A2/fr
Priority to EP99932668A priority patent/EP1080345A2/fr
Publication of DE19820419A1 publication Critical patent/DE19820419A1/de
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2968—Transducers specially adapted for acoustic level indicators
    • 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
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
DE19820419A 1998-05-07 1998-05-07 Ultraschallwandler Ceased DE19820419A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19820419A DE19820419A1 (de) 1998-05-07 1998-05-07 Ultraschallwandler
PCT/DE1999/001402 WO1999057526A2 (fr) 1998-05-07 1999-05-06 Transducteur ultrasonore
EP99932668A EP1080345A2 (fr) 1998-05-07 1999-05-06 Transducteur ultrasonore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19820419A DE19820419A1 (de) 1998-05-07 1998-05-07 Ultraschallwandler

Publications (1)

Publication Number Publication Date
DE19820419A1 true DE19820419A1 (de) 1999-11-18

Family

ID=7866974

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19820419A Ceased DE19820419A1 (de) 1998-05-07 1998-05-07 Ultraschallwandler

Country Status (3)

Country Link
EP (1) EP1080345A2 (fr)
DE (1) DE19820419A1 (fr)
WO (1) WO1999057526A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10344741A1 (de) * 2003-09-25 2005-04-14 Endress + Hauser Gmbh + Co. Kg Schall- oder Ultraschallwandler
EP2411775A2 (fr) * 2009-03-25 2012-02-01 Schmitt Measurement Systems, INC. Système de surveillance du niveau de liquide à ultrasons
DE102012104227A1 (de) * 2012-05-15 2013-11-21 Endress + Hauser Gmbh + Co. Kg Ultraschallwandler
DE102018216624A1 (de) * 2018-09-27 2020-04-02 Conti Temic Microelectronic Gmbh Verfahren und Vorrichtung zum Bestimmen des Füllstands und/oder der Qualität eines Fluids in einem Fluidbehälter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012209777A1 (de) * 2012-06-12 2013-12-12 Continental Automotive Gmbh Kopplungsvorrichtung und Verfahren zum Herstellen einer Kopplungsvorrichtung
CN115568905A (zh) * 2022-10-17 2023-01-06 深圳迈菲超声医疗器械有限公司 一种超声切削装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6441885A (en) * 1987-08-07 1989-02-14 Matsushita Electric Works Ltd Ultrasonic vibrator
US5477729A (en) * 1993-09-02 1995-12-26 K.K. Holding Ag Acoustic emission transducer
DE19538696A1 (de) * 1995-10-17 1997-04-24 Endress Hauser Gmbh Co Anordnung zur Überwachung eines vorbestimmten Füllstands einer Flüssigkeit in einem Behälter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH642503A5 (en) * 1979-08-02 1984-04-13 Landis & Gyr Ag Ultrasound converter
US4570482A (en) * 1982-04-23 1986-02-18 Murata Manufacturing Co., Ltd. Load-sensitive level detecting device
US4703652A (en) * 1984-12-01 1987-11-03 Ngk Spark Plug Co., Ltd. Piezoelectric type liquid level sensor and fabricating method thereof
US4780861A (en) * 1984-12-20 1988-10-25 The Coca-Cola Company Automatic control system for filling beverage containers
DK102592A (da) * 1992-08-18 1994-02-19 Reson System As Transducer med kavitationsmembran

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6441885A (en) * 1987-08-07 1989-02-14 Matsushita Electric Works Ltd Ultrasonic vibrator
US5477729A (en) * 1993-09-02 1995-12-26 K.K. Holding Ag Acoustic emission transducer
DE19538696A1 (de) * 1995-10-17 1997-04-24 Endress Hauser Gmbh Co Anordnung zur Überwachung eines vorbestimmten Füllstands einer Flüssigkeit in einem Behälter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10344741A1 (de) * 2003-09-25 2005-04-14 Endress + Hauser Gmbh + Co. Kg Schall- oder Ultraschallwandler
US7411335B2 (en) 2003-09-25 2008-08-12 Endress + Hauser Gmbh + Co. Kg Sonic or ultrasonic transducer
EP2411775A2 (fr) * 2009-03-25 2012-02-01 Schmitt Measurement Systems, INC. Système de surveillance du niveau de liquide à ultrasons
EP2411775A4 (fr) * 2009-03-25 2013-11-13 Schmitt Measurement Systems Inc Système de surveillance du niveau de liquide à ultrasons
DE102012104227A1 (de) * 2012-05-15 2013-11-21 Endress + Hauser Gmbh + Co. Kg Ultraschallwandler
DE102018216624A1 (de) * 2018-09-27 2020-04-02 Conti Temic Microelectronic Gmbh Verfahren und Vorrichtung zum Bestimmen des Füllstands und/oder der Qualität eines Fluids in einem Fluidbehälter
DE102018216624B4 (de) 2018-09-27 2022-12-08 Vitesco Technologies Germany Gmbh Verfahren und Vorrichtung zum Bestimmen des Füllstands und/oder der Qualität eines Fluids in einem Fluidbehälter

Also Published As

Publication number Publication date
WO1999057526A3 (fr) 2000-03-16
EP1080345A2 (fr) 2001-03-07
WO1999057526A2 (fr) 1999-11-11

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection