DE69907411D1 - Resonanzstruktur für akustische wandler - Google Patents

Resonanzstruktur für akustische wandler

Info

Publication number
DE69907411D1
DE69907411D1 DE69907411T DE69907411T DE69907411D1 DE 69907411 D1 DE69907411 D1 DE 69907411D1 DE 69907411 T DE69907411 T DE 69907411T DE 69907411 T DE69907411 T DE 69907411T DE 69907411 D1 DE69907411 D1 DE 69907411D1
Authority
DE
Germany
Prior art keywords
resonance structure
acoustic converters
converters
acoustic
resonance
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 - Lifetime
Application number
DE69907411T
Other languages
English (en)
Other versions
DE69907411T2 (de
Inventor
John Gerrard Gallagher
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.)
Hydramotion Ltd
Original Assignee
Hydramotion Ltd
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 Hydramotion Ltd filed Critical Hydramotion Ltd
Publication of DE69907411D1 publication Critical patent/DE69907411D1/de
Application granted granted Critical
Publication of DE69907411T2 publication Critical patent/DE69907411T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G01H1/10—Measuring characteristics of vibrations in solids by using direct conduction to the detector of torsional vibrations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
DE69907411T 1998-02-12 1999-02-10 Resonanzstruktur für akustische wandler Expired - Lifetime DE69907411T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9802907 1998-02-12
GBGB9802907.7A GB9802907D0 (en) 1998-02-12 1998-02-12 Resonant structures for transducers
PCT/GB1999/000421 WO1999041735A1 (en) 1998-02-12 1999-02-10 Resonant structures for transducers

Publications (2)

Publication Number Publication Date
DE69907411D1 true DE69907411D1 (de) 2003-06-05
DE69907411T2 DE69907411T2 (de) 2004-03-18

Family

ID=10826820

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69907411T Expired - Lifetime DE69907411T2 (de) 1998-02-12 1999-02-10 Resonanzstruktur für akustische wandler

Country Status (8)

Country Link
US (1) US6450013B1 (de)
EP (1) EP1053542B1 (de)
JP (1) JP4106181B2 (de)
CN (1) CN1125429C (de)
AU (1) AU2532099A (de)
DE (1) DE69907411T2 (de)
GB (1) GB9802907D0 (de)
WO (1) WO1999041735A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6964196B2 (en) * 2002-07-08 2005-11-15 Texas Instruments Incorporated Resonant pivoting surface with inertially coupled activation
KR100587822B1 (ko) * 2004-07-15 2006-06-12 한국항공우주연구원 무중력 환경에서의 관성력과 표준 질량을 이용한 질량측정 시스템 및 방법
DE102005009143A1 (de) * 2005-03-01 2006-09-07 Robert Bosch Gmbh Vorrichtung und Verfahren zur Messung von Eigenschaften eines fluiden Mediums
US20080037363A1 (en) * 2006-08-14 2008-02-14 Michael Joe Brannon Agitation system and method for measuring settling rate of solids from a suspension
KR100931153B1 (ko) * 2006-10-18 2009-12-10 현대자동차주식회사 대칭형 점도 센서
US8347693B2 (en) * 2010-08-26 2013-01-08 Halliburton Energy Services, Inc. Apparatus and methods for continuous compatibility testing of subterranean fluids and their compositions under wellbore conditions
WO2012033772A2 (en) 2010-09-07 2012-03-15 Sayir, Mahir Fluid properties measurement device having a symmetric resonator
WO2016109447A1 (en) 2014-12-29 2016-07-07 Concentric Meter Corporation Fluid parameter sensor and meter
US10126266B2 (en) 2014-12-29 2018-11-13 Concentric Meter Corporation Fluid parameter sensor and meter
WO2016109451A1 (en) 2014-12-29 2016-07-07 Concentric Meter Corporation Electromagnetic transducer
GB201518986D0 (en) * 2015-10-27 2015-12-09 Hydramotion Ltd Method and apparatus for the measurement of fluid properties
EP3214424A1 (de) 2016-03-04 2017-09-06 Buira Nunez, Ernest Detektionsvorrichtung, system und verfahren zur messung von flüssigkeitseigenschaften einschliesslich viskosität und/oder dichte
US11125668B2 (en) * 2016-12-19 2021-09-21 Rheonics Gmbh Resonant sensors for measuring fluid properties capable of operating at high temperatures and pressures
GB201706734D0 (en) * 2017-04-27 2017-06-14 Hydramotion Ltd Techniques and apparatus for rheological flow measurement
JP7008446B2 (ja) 2017-08-03 2022-01-25 日本フルハーフ株式会社 パレット位置修正棒

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915792C (de) * 1942-03-07 1954-07-29 Atlas Werke Ag Vorrichtung zum Senden und Empfangen von Schallwellen im Wasser oder sonstigen fluessigen Medien, insbesondere auf Schiffen
US3712117A (en) * 1971-01-12 1973-01-23 Nat Metal & Refining Co High precision wide dynamic range viscous loss measuring apparatus
JPS63272300A (ja) 1987-04-30 1988-11-09 Yamaichi Electric Mfg Co Ltd 円方向振動子
JP2768893B2 (ja) * 1993-09-06 1998-06-25 山一電機株式会社 共振形検液装置
JP2709282B2 (ja) * 1995-03-13 1998-02-04 山一電機株式会社 振動形検液装置

Also Published As

Publication number Publication date
AU2532099A (en) 1999-08-30
DE69907411T2 (de) 2004-03-18
EP1053542A1 (de) 2000-11-22
EP1053542B1 (de) 2003-05-02
US6450013B1 (en) 2002-09-17
CN1292912A (zh) 2001-04-25
JP2002503819A (ja) 2002-02-05
CN1125429C (zh) 2003-10-22
GB9802907D0 (en) 1998-04-08
WO1999041735A1 (en) 1999-08-19
JP4106181B2 (ja) 2008-06-25

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Legal Events

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8364 No opposition during term of opposition