SE8005519L - ULTRASCHALLWANDLER - Google Patents

ULTRASCHALLWANDLER

Info

Publication number
SE8005519L
SE8005519L SE8005519A SE8005519A SE8005519L SE 8005519 L SE8005519 L SE 8005519L SE 8005519 A SE8005519 A SE 8005519A SE 8005519 A SE8005519 A SE 8005519A SE 8005519 L SE8005519 L SE 8005519L
Authority
SE
Sweden
Prior art keywords
housing
converter
ultrasound
piezo disc
converter housing
Prior art date
Application number
SE8005519A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE441639B (en
Inventor
H Lechner
C Meisser
Original Assignee
Landis & Gyr 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 Landis & Gyr Ag filed Critical Landis & Gyr Ag
Publication of SE8005519L publication Critical patent/SE8005519L/en
Publication of SE441639B publication Critical patent/SE441639B/en

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
    • B06B1/0644—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
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662—Constructional details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measuring Volume Flow (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

The ultrasound converter, which is pressure-proof, hot water resistant and insensitive to temperature changes, consists of a converter housing (1), an oscillating element (2) with a piezo disc (3), electrodes (4; 6), and a power cable (7). In the space between the floor of the housing (5) and the rear electrode (6) is an ultrasound-insulating medium, preferably a synthetic foam. The oscillating element (2) rests on a shoulder (13) of the converter housing (1), and is axially rigid and radially movable. Its outer surface is distanced from the converter housing (1), and it is sealed against the converter housing (1), and held elastically, by an elastic seal (14). Openings (16), which are permeable to water vapour, are arranged in the housing floor (5). The front electrode (4) extends to the rear face of the piezo disc (3). A plastic film or an O-ring can be used as the elastic seal (14). If the ultrasound converter is used to measure the flow rate in a pipe, the diameter of the piezo disc (3) is greater than the internal diameter of the pipe. <IMAGE>
SE8005519A 1979-08-02 1980-08-01 ULTRACY CONVERTER AND USE OF THE CONVERTER SE441639B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH709679A CH642503A5 (en) 1979-08-02 1979-08-02 Ultrasound converter

Publications (2)

Publication Number Publication Date
SE8005519L true SE8005519L (en) 1981-02-13
SE441639B SE441639B (en) 1985-10-21

Family

ID=4319875

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8005519A SE441639B (en) 1979-08-02 1980-08-01 ULTRACY CONVERTER AND USE OF THE CONVERTER

Country Status (7)

Country Link
CH (1) CH642503A5 (en)
DE (1) DE2934031C2 (en)
DK (1) DK151676C (en)
FR (1) FR2462837B1 (en)
IT (1) IT1132256B (en)
NL (1) NL182751C (en)
SE (1) SE441639B (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503517A1 (en) * 1981-04-06 1982-10-08 Thomson Csf Piezoelectric transducer for ultrasonic waves - has transducer with polymeric piezoelectric element of higher acoustic impedance than reflector and half wavelength thickness
GB2141902B (en) * 1983-05-23 1986-09-17 Raytheon Co Composite transducer
DK102592A (en) * 1992-08-18 1994-02-19 Reson System As Cavitation membrane transducer
EP0606536B1 (en) * 1993-01-11 1998-04-08 Landis &amp; Gyr Technology Innovation AG Sensor with ultrasonic transducer
DE59303655D1 (en) * 1993-02-04 1996-10-10 Landis & Gyr Tech Innovat Transducer
DK172322B1 (en) * 1995-08-31 1998-03-16 Danfoss As An ultrasonic transducer
DE19601570A1 (en) * 1996-01-17 1997-07-24 Siemens Ag Acoustic coupling
DE29611678U1 (en) * 1996-07-04 1997-08-07 Siemens AG, 80333 München Sound transducers, in particular ultrasound transducers
DE19820419A1 (en) * 1998-05-07 1999-11-18 Fraunhofer Ges Forschung Ultrasonic transducer
DE19830132A1 (en) * 1998-07-06 2000-01-13 Ulrich Gerber Method and device for treating liquid and energy supply device suitable therefor
EP0974814B1 (en) * 1998-07-22 2009-09-23 Endress + Hauser Flowtec AG Ultrasound transducer device
DE10026568C2 (en) * 2000-05-30 2002-11-21 Siemens Ag Connector for an ultrasonic transducer housing
WO2002071002A1 (en) * 2001-03-02 2002-09-12 Spanner-Pollux Gmbh Transducer for an ultrasonic flowmeter
DE10158015B4 (en) 2001-11-27 2010-10-14 Hydrometer Gmbh Ultrasonic transducer and flow meter
FR2833450B1 (en) 2001-12-07 2004-11-19 Thales Sa HIGH-TRANSMISSION ACOUSTIC ANTENNA
ES2600525T3 (en) 2003-04-21 2017-02-09 Teijin Pharma Limited Oxygen concentration system to generate oxygen enriched gas
DE102005001899B4 (en) * 2005-01-14 2007-03-08 Landis+Gyr Gmbh ultrasound probe
DE102009046147A1 (en) 2009-10-29 2011-05-05 Robert Bosch Gmbh Ultrasonic transducer for use in a fluid medium
DE102009046148A1 (en) 2009-10-29 2011-05-05 Robert Bosch Gmbh Ultrasonic transducer for use in a fluid medium
DE102009046146A1 (en) * 2009-10-29 2011-05-12 Robert Bosch Gmbh Ultrasonic transducer for use in a fluid medium
DE102010000967A1 (en) * 2010-01-18 2011-07-21 Robert Bosch GmbH, 70469 Ultrasonic transducer for use in a fluid medium
DE102012100032B4 (en) * 2012-01-03 2016-04-07 Dr. Raubenheimer GmbH Water purification system and method for treating water
FR3102304B1 (en) 2019-10-17 2021-10-15 Sagemcom Energy & Telecom Sas Ultrasonic transducer piezoelectric cell holder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743301C (en) * 1938-08-30 1943-12-22 Mix & Genest Ag Moisture-proof capsule microphone
DE899574C (en) * 1941-08-16 1953-12-14 Siemens Ag Piezoelectric vibration generator
DE1101831B (en) * 1959-07-23 1961-03-09 Siemens Ag Ultrasonic transducer working under a liquid level
NL283763A (en) * 1961-09-29
US3555311A (en) * 1969-01-23 1971-01-12 Marquardt Corp High pressure piezoelectric transducer
DE2223531B1 (en) * 1972-05-15 1973-11-08 Siemens Ag ELECTROACOUSTIC CONVERTER
CH557698A (en) * 1972-08-23 1975-01-15 Ciba Geigy Ag PROCESS FOR FRACTIONING A LIQUID, DEVICE IMPLEMENTING THIS PROCESS AND APPLICATION OF THIS PROCESS TO THE GRANULATION OF A PRELIMINATED PRODUCT.

Also Published As

Publication number Publication date
CH642503A5 (en) 1984-04-13
NL182751B (en) 1987-12-01
IT1132256B (en) 1986-07-02
DE2934031B1 (en) 1980-10-09
FR2462837B1 (en) 1986-05-23
IT8023694A0 (en) 1980-07-25
DK330480A (en) 1981-02-03
DK151676B (en) 1987-12-21
SE441639B (en) 1985-10-21
DK151676C (en) 1988-05-24
FR2462837A1 (en) 1981-02-13
NL182751C (en) 1988-05-02
DE2934031C2 (en) 1981-07-30
NL8004410A (en) 1981-02-04

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