DK0679874T3 - Lydsensor - Google Patents

Lydsensor

Info

Publication number
DK0679874T3
DK0679874T3 DK95105535T DK95105535T DK0679874T3 DK 0679874 T3 DK0679874 T3 DK 0679874T3 DK 95105535 T DK95105535 T DK 95105535T DK 95105535 T DK95105535 T DK 95105535T DK 0679874 T3 DK0679874 T3 DK 0679874T3
Authority
DK
Denmark
Prior art keywords
contact
foil
pressure
sound sensor
projections
Prior art date
Application number
DK95105535T
Other languages
English (en)
Inventor
Burkhard Dr Stephan
Paul Greppmaier
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
Priority claimed from DE9406896U external-priority patent/DE9406896U1/de
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of DK0679874T3 publication Critical patent/DK0679874T3/da

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/228—Details, e.g. general constructional or apparatus details related to high temperature conditions
    • 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
    • B06B1/0681—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 damping structure
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/227—Details, e.g. general constructional or apparatus details related to high pressure, tension or stress conditions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02836—Flow rate, liquid level

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
DK95105535T 1994-04-25 1995-04-12 Lydsensor DK0679874T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9406896U DE9406896U1 (de) 1994-04-25 1994-04-25 Schallsensor
DE19508721 1995-03-10

Publications (1)

Publication Number Publication Date
DK0679874T3 true DK0679874T3 (da) 1998-09-23

Family

ID=25962008

Family Applications (1)

Application Number Title Priority Date Filing Date
DK95105535T DK0679874T3 (da) 1994-04-25 1995-04-12 Lydsensor

Country Status (4)

Country Link
EP (1) EP0679874B1 (da)
AT (1) ATE163089T1 (da)
DE (1) DE59501392D1 (da)
DK (1) DK0679874T3 (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19725717C2 (de) * 1997-06-18 2001-08-02 Hydrometer Gmbh Ultraschallwandler für Flüssigkeitsdurchflussmesser
ATE443848T1 (de) * 1998-07-22 2009-10-15 Flowtec Ag Ultraschallwandler-anordnung
DE10047383C1 (de) * 2000-09-25 2001-11-08 Siemens Ag Ultraschall-Durchflussmesser
DE10158015B4 (de) * 2001-11-27 2010-10-14 Hydrometer Gmbh Ultraschallwandler und Durchflussmesser
DE10356114A1 (de) * 2003-11-27 2005-06-23 Endress + Hauser Flowtec Ag, Reinach Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- und/oder Massendurchflusses eines Messmediums
DK1701140T3 (da) 2005-03-11 2013-02-04 Landis & Gyr Gmbh Ultralydsmålekanal
DK1731883T3 (da) 2005-06-10 2012-02-27 Landis & Gyr Gmbh Fremgangsmåde til registrering af en geometriændring ved en ultralyd-gennemstrømningskanal
DE102008027687A1 (de) 2008-06-11 2009-12-17 Valeo Schalter Und Sensoren Gmbh Ultraschallwandler
DE102011090082A1 (de) * 2011-12-29 2013-07-04 Endress + Hauser Flowtec Ag Ultraschallwandler für ein Durchflussmessgerät
GB2515718B (en) * 2013-02-14 2015-09-09 Roger Thomas Hurrey Piezoelectric Sensor Compression Assembly, Self-Test and Background Sensitivity

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3012038C2 (de) * 1980-03-28 1982-08-19 Honeywell-Elac-Nautik Gmbh, 2300 Kiel Elektroakustischer Wasserschallwandler
US4742717A (en) * 1986-09-16 1988-05-10 Kaijo Denki Co., Ltd. Gas flow rate measuring device
DE8704183U1 (de) * 1987-03-20 1988-07-21 Siemens AG, 1000 Berlin und 8000 München Ultraschallkopf, insbesondere für Ultraschall-Therapie
DE8906992U1 (de) * 1989-06-07 1990-10-04 INTERATOM GmbH, 5060 Bergisch Gladbach Ultraschall-Prüfkopf

Also Published As

Publication number Publication date
DE59501392D1 (de) 1998-03-12
ATE163089T1 (de) 1998-02-15
EP0679874A2 (de) 1995-11-02
EP0679874A3 (de) 1996-03-20
EP0679874B1 (de) 1998-02-04

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