DE69831366D1 - Zylindrische Ultraschallwandler zur Ausstrahlung von nach innen gerichteten Schallwellen - Google Patents

Zylindrische Ultraschallwandler zur Ausstrahlung von nach innen gerichteten Schallwellen

Info

Publication number
DE69831366D1
DE69831366D1 DE69831366T DE69831366T DE69831366D1 DE 69831366 D1 DE69831366 D1 DE 69831366D1 DE 69831366 T DE69831366 T DE 69831366T DE 69831366 T DE69831366 T DE 69831366T DE 69831366 D1 DE69831366 D1 DE 69831366D1
Authority
DE
Germany
Prior art keywords
emission
sound waves
ultrasonic transducers
inwardly directed
directed sound
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.)
Expired - Fee Related
Application number
DE69831366T
Other languages
English (en)
Other versions
DE69831366T2 (de
Inventor
Ching Chu
Neil D Roiland
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.)
Datex Ohmeda Inc
Original Assignee
Datex Ohmeda Inc
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 Datex Ohmeda Inc filed Critical Datex Ohmeda Inc
Application granted granted Critical
Publication of DE69831366D1 publication Critical patent/DE69831366D1/de
Publication of DE69831366T2 publication Critical patent/DE69831366T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B06B1/0644—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
    • B06B1/0655—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 of cylindrical shape
    • 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
    • G01N29/02—Analysing fluids
    • G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
    • 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
    • G01N29/222—Constructional or flow details for analysing fluids

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
DE69831366T 1997-03-28 1998-03-18 Zylindrische Ultraschallwandler zur Ausstrahlung von nach innen gerichteten Schallwellen Expired - Fee Related DE69831366T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US828441 1997-03-28
US08/828,441 US5900552A (en) 1997-03-28 1997-03-28 Inwardly directed wave mode ultrasonic transducer, gas analyzer, and method of use and manufacture

Publications (2)

Publication Number Publication Date
DE69831366D1 true DE69831366D1 (de) 2005-10-06
DE69831366T2 DE69831366T2 (de) 2006-06-22

Family

ID=25251816

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69831366T Expired - Fee Related DE69831366T2 (de) 1997-03-28 1998-03-18 Zylindrische Ultraschallwandler zur Ausstrahlung von nach innen gerichteten Schallwellen

Country Status (3)

Country Link
US (1) US5900552A (de)
EP (1) EP0867717B1 (de)
DE (1) DE69831366T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4773019B2 (ja) 1999-11-08 2011-09-14 ユニバーシティ オブ フロリダ リサーチ ファンデーション インコーポレーティッド 薬物の服薬遵守を監視するためのマーカー検出の方法および器具
US20050037374A1 (en) * 1999-11-08 2005-02-17 Melker Richard J. Combined nanotechnology and sensor technologies for simultaneous diagnosis and treatment
US20050233459A1 (en) * 2003-11-26 2005-10-20 Melker Richard J Marker detection method and apparatus to monitor drug compliance
US6655035B2 (en) * 2000-10-20 2003-12-02 Continuum Photonics, Inc. Piezoelectric generator
US6981947B2 (en) 2002-01-22 2006-01-03 University Of Florida Research Foundation, Inc. Method and apparatus for monitoring respiratory gases during anesthesia
US7104963B2 (en) 2002-01-22 2006-09-12 University Of Florida Research Foundation, Inc. Method and apparatus for monitoring intravenous (IV) drug concentration using exhaled breath
US7052854B2 (en) * 2001-05-23 2006-05-30 University Of Florida Research Foundation, Inc. Application of nanotechnology and sensor technologies for ex-vivo diagnostics
WO2002095398A1 (en) * 2001-05-24 2002-11-28 University Of Florida Method and apparatus for detecting environmental smoke exposure
US20070167853A1 (en) * 2002-01-22 2007-07-19 Melker Richard J System and method for monitoring health using exhaled breath
US20060160134A1 (en) * 2002-10-21 2006-07-20 Melker Richard J Novel application of biosensors for diagnosis and treatment of disease
WO2005017965A2 (en) * 2003-08-06 2005-02-24 Measurement Specialities, Inc. Ultrasonic air transducer arrays using polymer piezoelectric films and impedance matching structures for ultrasonic polymer transducer arrays
US20050191757A1 (en) * 2004-01-20 2005-09-01 Melker Richard J. Method and apparatus for detecting humans and human remains
US20060062734A1 (en) * 2004-09-20 2006-03-23 Melker Richard J Methods and systems for preventing diversion of prescription drugs
US20060257883A1 (en) * 2005-05-10 2006-11-16 Bjoraker David G Detection and measurement of hematological parameters characterizing cellular blood components
US7914460B2 (en) * 2006-08-15 2011-03-29 University Of Florida Research Foundation, Inc. Condensate glucose analyzer
JP2012531017A (ja) * 2009-06-19 2012-12-06 スリーエム イノベイティブ プロパティズ カンパニー 遮蔽された電気ケーブル

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB792986A (en) * 1954-11-17 1958-04-09 Parsons & Co Sir Howard G Improvements in or relating to sonic gas analysers
NL302089A (de) * 1963-01-28
US3543059A (en) * 1968-10-28 1970-11-24 Us Navy Fluted cylinder for underwater transducer
US3816774A (en) * 1972-01-28 1974-06-11 Victor Company Of Japan Curved piezoelectric elements
US4156824A (en) * 1977-12-15 1979-05-29 The United States Of America As Represented By The Secretary Of The Navy Composite low frequency transducer
NO791305L (no) * 1978-08-04 1980-02-05 Sub Sea Oil Services Ssos Gassanalysator
US4546459A (en) * 1982-12-02 1985-10-08 Magnavox Government And Industrial Electronics Company Method and apparatus for a phased array transducer
US4663977A (en) * 1986-01-03 1987-05-12 Badger Meter, Inc. Sonic measurement of gas flow
US4938066A (en) * 1988-01-29 1990-07-03 Xecutek Corporation Ultrasonic apparatus for measuring the speed of sound in a gaseous medium
GB2215049B (en) * 1988-02-02 1991-08-21 Stc Plc Acoustic devices
US4859897A (en) * 1988-04-07 1989-08-22 Frank Massa Directional waterproof ultrasonic transducer for operating in air
US5060506A (en) * 1989-10-23 1991-10-29 Douglas David W Method and apparatus for monitoring the content of binary gas mixtures
US5060514A (en) * 1989-11-30 1991-10-29 Puritan-Bennett Corporate Ultrasonic gas measuring device
DE59006626D1 (de) * 1989-12-08 1994-09-01 Oehler Oscar Selektive gasdetektion durch feldseparation und schallgeschwindigkeitsmessung: sauerstoff-detektion.
WO1992003724A1 (en) * 1990-08-17 1992-03-05 The Commonwealth Industrial Gases Limited Gas analyser
US5392635A (en) * 1993-12-30 1995-02-28 At&T Corp. Acoustic analysis of gas mixtures

Also Published As

Publication number Publication date
EP0867717A1 (de) 1998-09-30
US5900552A (en) 1999-05-04
DE69831366T2 (de) 2006-06-22
EP0867717B1 (de) 2005-08-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee