EP1405679A1 - Lineare Anordnung von als komplexen und integrierten Rohrresonatoren hergestellten Schall- und Ultraschallwandlern - Google Patents

Lineare Anordnung von als komplexen und integrierten Rohrresonatoren hergestellten Schall- und Ultraschallwandlern Download PDF

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Publication number
EP1405679A1
EP1405679A1 EP20020405863 EP02405863A EP1405679A1 EP 1405679 A1 EP1405679 A1 EP 1405679A1 EP 20020405863 EP20020405863 EP 20020405863 EP 02405863 A EP02405863 A EP 02405863A EP 1405679 A1 EP1405679 A1 EP 1405679A1
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EP
European Patent Office
Prior art keywords
tube
sonic
ultrasonic
radiating
ultrasonic waves
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.)
Withdrawn
Application number
EP20020405863
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English (en)
French (fr)
Inventor
Hee-Myoung Ilsan Suntek Lee
Miodrag Prokic
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.)
MP Interconsulting
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MP Interconsulting
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 MP Interconsulting filed Critical MP Interconsulting
Priority to EP20020405863 priority Critical patent/EP1405679A1/de
Publication of EP1405679A1 publication Critical patent/EP1405679A1/de
Withdrawn legal-status Critical Current

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    • 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
    • B06B1/0607—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 multiple elements
    • B06B1/0622—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 multiple elements on one surface

Definitions

  • This invention presents the tube-fixed linear-array of unlimited number of bolt-clamped Langevin transducers, where all transducer elements have the same, common (or integral) front mass, and each of them has its own piezoceramic layer and back mass on the opposite side, rigidly fixed by its front mass inside or outside of any metal pipe or round shaped tube, where the tube or pipe can also be an integral part of the front transducer mass, enabling the pipe or tube to radiate sonic and ultrasonic energy externally or internally, where the linear array of bolt-clamped Langevin transducers (that have the same, common front mass) is also designed to make optimal coupling and mode transformation between several of important vibration modes, having in the same time very large number of acoustically coupled harmonics, enabling the tube to radiate wide band, multi frequency, sonic and ultrasonic, omni directional waves, and to accept large frequency-sweeping driving, this way presenting an integrated sonic and ultrasonic transducer, which creates high-density complex acou
  • ultrasonic devices are basically composed of a fluid container, an ultrasonic transducer, and an ultrasonic power supply.
  • the function of an ultrasonic power supply is to be an oscillating circuit that generates ultrasonic vibrations for driving ultrasonic transducer, in order to transmit vibrations to the fluid container.
  • ultrasonic wave transducers and energy transmission systems for fluids agitation, ultrasonic cleaning and Sonochemistry applications.
  • the physical resonator that is in contact with liquid and ultrasonic transducer are connected on the same longitudinal axis. Then, in synchronization with the standing-waves, multiple sine-wave activation of an integer number of ⁇ /2 wavelength balanced vibrations, the vibrating energy generated longitudinally (or axially) by the ultrasonic wave transducer will transmit, along the structure of the resonator, radiating wave energy in the fluid.
  • Such structure plays a quite important role with respect to the electric energy power supply (ultrasonic generator) and operating frequency, since its operation requires an integer number of half-wavelength agreement with the resonator length.
  • Such (Prior Art) transducer design cannot achieve the generation of ultrasonic waves under multi-frequency and wide band conditions, since in operation it requires an integer number of half wavelengths to correspond to and match the power supply frequency and the length of the resonator. It is restricted by the relatively narrow operating frequency bandwidth, and it will not achieve the generation of ultrasonic waves under multi-frequency regime.
  • Fig. 1 relates to a generic external view of the invention in its embodiment, presenting a multi-frequency resonating mode, complex tube resonator 1, made of a tube or a hollow or solid elongated strip made of a long bar of metal 2, consisting of internally, or externally inserted and fixed transducers array 12, of multiple transducer elements 13, in other words, fixed to the internal or external tube surface, presenting electrically in-parallel-connected Langevin transducer elements 13, watertight sealed and closed on both tube ends with metal caps 4 in case of internal transducer array assembling, and ending with flange detail 3 and cable conduit 11, delivering strong vibrations and multi frequency oscillations on the tube resonator external surface 1, while driven by electric signal power supply, activating the complex resonance field of multiple frequencies of the tube resonator 1, to achieve wide-band sonic and ultrasonic waves radiation on the whole external surface towards external fluid, while the same effects can be realized when transducer array is fixed externally radiating towards internal tube space, when the
  • the complex resonator 1 module for generating multiple and wide band frequency resonance and radiation of sonic and ultrasonic waves, with its internal elements, components and parts presented on Fig. 2, and Fig 3.
  • the transducer array 12 is directly and axially fixed to the internal surface of the tube 2 of the resonator 1, to directly produce vibrations, invoking various sonic and ultrasonic frequency wavelengths, exciting various vibration modes, and activating the resonator 1 in order to transmit vibrations outward in the fluid, where the resonator 1 is immersed, and the same effects can be realized when transducer array 12 is fixed to the external tube surface radiating a fluid in internal tube space.
  • the elongated unit or tube unit 2 of the above resonator 1 for multiple frequency resonance can have a form of a regular cylindrical tube, or it can have a form/s of various polygonal hollow or solid elongated units, tubes, spherical, elliptical, straight, rectangular, arbitrary curve-shaped or similar objects, while one or many transducer arrays can be fixed to the same tube externally or internally.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP20020405863 2002-10-03 2002-10-03 Lineare Anordnung von als komplexen und integrierten Rohrresonatoren hergestellten Schall- und Ultraschallwandlern Withdrawn EP1405679A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20020405863 EP1405679A1 (de) 2002-10-03 2002-10-03 Lineare Anordnung von als komplexen und integrierten Rohrresonatoren hergestellten Schall- und Ultraschallwandlern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020405863 EP1405679A1 (de) 2002-10-03 2002-10-03 Lineare Anordnung von als komplexen und integrierten Rohrresonatoren hergestellten Schall- und Ultraschallwandlern

Publications (1)

Publication Number Publication Date
EP1405679A1 true EP1405679A1 (de) 2004-04-07

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Family Applications (1)

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EP20020405863 Withdrawn EP1405679A1 (de) 2002-10-03 2002-10-03 Lineare Anordnung von als komplexen und integrierten Rohrresonatoren hergestellten Schall- und Ultraschallwandlern

Country Status (1)

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EP (1) EP1405679A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8574336B2 (en) 2010-04-09 2013-11-05 Southwire Company Ultrasonic degassing of molten metals
US8652397B2 (en) 2010-04-09 2014-02-18 Southwire Company Ultrasonic device with integrated gas delivery system
US8844897B2 (en) 2008-03-05 2014-09-30 Southwire Company, Llc Niobium as a protective barrier in molten metals
US9528167B2 (en) 2013-11-18 2016-12-27 Southwire Company, Llc Ultrasonic probes with gas outlets for degassing of molten metals
US10233515B1 (en) 2015-08-14 2019-03-19 Southwire Company, Llc Metal treatment station for use with ultrasonic degassing system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139603A (en) * 1960-12-29 1964-06-30 Acoustica Associates Inc Mass-loaded electromechanical transducer
US3496533A (en) * 1968-09-06 1970-02-17 Schlumberger Technology Corp Directional acoustic transmitting and receiving apparatus
US3731267A (en) * 1971-01-04 1973-05-01 O Brandt Electro-acoustic transducer
US5450373A (en) * 1994-06-07 1995-09-12 Westinghouse Electric Corporation Apparatus for transmitting two frequency signals with an acoustic projector
DE19724189A1 (de) * 1997-06-02 1998-12-03 Bandelin Electronic Gmbh & Co Rohrförmige elektroakustische Vorrichtung zur Erzeugung von Ultraschallenergie

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139603A (en) * 1960-12-29 1964-06-30 Acoustica Associates Inc Mass-loaded electromechanical transducer
US3496533A (en) * 1968-09-06 1970-02-17 Schlumberger Technology Corp Directional acoustic transmitting and receiving apparatus
US3731267A (en) * 1971-01-04 1973-05-01 O Brandt Electro-acoustic transducer
US5450373A (en) * 1994-06-07 1995-09-12 Westinghouse Electric Corporation Apparatus for transmitting two frequency signals with an acoustic projector
DE19724189A1 (de) * 1997-06-02 1998-12-03 Bandelin Electronic Gmbh & Co Rohrförmige elektroakustische Vorrichtung zur Erzeugung von Ultraschallenergie

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8844897B2 (en) 2008-03-05 2014-09-30 Southwire Company, Llc Niobium as a protective barrier in molten metals
US9327347B2 (en) 2008-03-05 2016-05-03 Southwire Company, Llc Niobium as a protective barrier in molten metals
US8574336B2 (en) 2010-04-09 2013-11-05 Southwire Company Ultrasonic degassing of molten metals
US8652397B2 (en) 2010-04-09 2014-02-18 Southwire Company Ultrasonic device with integrated gas delivery system
US9382598B2 (en) 2010-04-09 2016-07-05 Southwire Company, Llc Ultrasonic device with integrated gas delivery system
US9617617B2 (en) 2010-04-09 2017-04-11 Southwire Company, Llc Ultrasonic degassing of molten metals
US10640846B2 (en) 2010-04-09 2020-05-05 Southwire Company, Llc Ultrasonic degassing of molten metals
US9528167B2 (en) 2013-11-18 2016-12-27 Southwire Company, Llc Ultrasonic probes with gas outlets for degassing of molten metals
US10316387B2 (en) 2013-11-18 2019-06-11 Southwire Company, Llc Ultrasonic probes with gas outlets for degassing of molten metals
US10233515B1 (en) 2015-08-14 2019-03-19 Southwire Company, Llc Metal treatment station for use with ultrasonic degassing system

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