EP0971557A3 - Ultrasonic foil transducer - Google Patents

Ultrasonic foil transducer Download PDF

Info

Publication number
EP0971557A3
EP0971557A3 EP99109344A EP99109344A EP0971557A3 EP 0971557 A3 EP0971557 A3 EP 0971557A3 EP 99109344 A EP99109344 A EP 99109344A EP 99109344 A EP99109344 A EP 99109344A EP 0971557 A3 EP0971557 A3 EP 0971557A3
Authority
EP
European Patent Office
Prior art keywords
ultrasonic
ultrasonic foil
foil transducer
transducer
electrically conductive
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
EP99109344A
Other languages
German (de)
French (fr)
Other versions
EP0971557A2 (en
EP0971557B1 (en
Inventor
Peter Anders
Klaus Rieck
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP0971557A2 publication Critical patent/EP0971557A2/en
Publication of EP0971557A3 publication Critical patent/EP0971557A3/en
Application granted granted Critical
Publication of EP0971557B1 publication Critical patent/EP0971557B1/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
    • B06B1/0688—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 with foil-type piezoelectric elements, e.g. PVDF

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Laminated Bodies (AREA)

Abstract

Die Erfindung betrifft einen Ultraschall-Folien-Wandler (1), umfassend zwei elektrisch leitende Folien (9, 10), zwischen denen eine Isolienschicht (3) angeordnet ist, wobei die elektrisch leitenden Folien (9, 10) aus einem leitfähigen Kunststoff gebildet sind und ein Verfahren zur Herstellung von Ultraschall-Folien-Wandlern (1).

Figure 00000001
The invention relates to an ultrasonic film converter (1), comprising two electrically conductive films (9, 10), between which an insulating layer (3) is arranged, the electrically conductive films (9, 10) being formed from a conductive plastic and a method for producing ultrasound film transducers (1).
Figure 00000001
EP99109344A 1998-06-09 1999-05-31 Ultrasonic foil transducer Expired - Lifetime EP0971557B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19825581A DE19825581A1 (en) 1998-06-09 1998-06-09 Ultrasonic film transformer for measuring distance to another object, e.g. a vehicle, and manufacturing process giving a transformer which can be easily adapted to different contours
DE19825581 1998-06-09

Publications (3)

Publication Number Publication Date
EP0971557A2 EP0971557A2 (en) 2000-01-12
EP0971557A3 true EP0971557A3 (en) 2000-02-09
EP0971557B1 EP0971557B1 (en) 2003-08-13

Family

ID=7870302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109344A Expired - Lifetime EP0971557B1 (en) 1998-06-09 1999-05-31 Ultrasonic foil transducer

Country Status (3)

Country Link
EP (1) EP0971557B1 (en)
DE (2) DE19825581A1 (en)
ES (1) ES2205631T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL136301A (en) 2000-05-22 2005-09-25 Payton Planar Magnetics Ltd Method of insulating a planar transformer printed circuit and lead frame windings forms

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309218A1 (en) * 1983-03-15 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Linear ultrasonic array
DE3309234A1 (en) * 1983-03-15 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Ultrasonic transducer
US5550790A (en) * 1995-02-10 1996-08-27 Kistler-Morse Corporation Acoustic transducer for level measurement in corrosive chemical environments

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3103357C2 (en) * 1981-01-31 1982-10-21 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln Ultrasonic transducer
DE3149732A1 (en) * 1981-12-15 1983-07-21 Siemens AG, 1000 Berlin und 8000 München Ultrasonic transducer arrangement
US5642015A (en) * 1993-07-14 1997-06-24 The University Of British Columbia Elastomeric micro electro mechanical systems
US5442595A (en) * 1994-04-22 1995-08-15 Xecutek Corporation Capacitance-type ultrasonic transducer
DE59712365D1 (en) * 1996-08-21 2005-08-25 Volkswagen Ag Device for determining the distance of objects

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309218A1 (en) * 1983-03-15 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Linear ultrasonic array
DE3309234A1 (en) * 1983-03-15 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Ultrasonic transducer
US5550790A (en) * 1995-02-10 1996-08-27 Kistler-Morse Corporation Acoustic transducer for level measurement in corrosive chemical environments

Also Published As

Publication number Publication date
ES2205631T3 (en) 2004-05-01
DE19825581A1 (en) 1999-12-16
EP0971557A2 (en) 2000-01-12
DE59906567D1 (en) 2003-09-18
EP0971557B1 (en) 2003-08-13

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