EP0123277A2 - Méthode pour l'excitation d'un oscillateur ultrasonique pour pulvériser un liquide - Google Patents

Méthode pour l'excitation d'un oscillateur ultrasonique pour pulvériser un liquide Download PDF

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Publication number
EP0123277A2
EP0123277A2 EP84104426A EP84104426A EP0123277A2 EP 0123277 A2 EP0123277 A2 EP 0123277A2 EP 84104426 A EP84104426 A EP 84104426A EP 84104426 A EP84104426 A EP 84104426A EP 0123277 A2 EP0123277 A2 EP 0123277A2
Authority
EP
European Patent Office
Prior art keywords
time interval
vibrator
frequency
power
time
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
EP84104426A
Other languages
German (de)
English (en)
Other versions
EP0123277B1 (fr
EP0123277A3 (en
Inventor
Valentin Dipl.-Phys. Mágori
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.)
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT84104426T priority Critical patent/ATE41887T1/de
Publication of EP0123277A2 publication Critical patent/EP0123277A2/fr
Publication of EP0123277A3 publication Critical patent/EP0123277A3/de
Application granted granted Critical
Publication of EP0123277B1 publication Critical patent/EP0123277B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn
    • B05B17/063—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn having an internal channel for supplying the liquid or other fluent material
    • 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
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • 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
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/50—Application to a particular transducer type
    • B06B2201/55—Piezoelectric transducer
    • 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
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/70—Specific application
    • B06B2201/76—Medical, dental
    • 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
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/70—Specific application
    • B06B2201/77—Atomizers

Definitions

  • the present invention relates to a method according to the preamble of patent claim 1.
  • liquid atomizer of the type mentioned above are e.g. fuel oil atomization for fuel oil burners.
  • an electronic excitation circuit which can operate the oscillator even under unfavorable operating (start-up) conditions in such a way that liquid atomization actually occurs.
  • Such an unfavorable operating condition is, for example, that a drop of liquid adheres to the worktop of the atomizer, which impedes the vibration of this worktop and thus the vibration of the entire ultrasonic vibrator. So far, as a remedy, however, such a high power surplus of electrically fed continuous power has been provided that such excessive damping of the vibrator can also be overcome. However, this has the disadvantage that the transducer is then destroyed, in particular if the fluid supply fails, because the result is thermal overloading of the transducer.
  • the invention is based on the consideration that a completely new operating method for such a liquid atomizer must be found in order to solve the problems at hand.
  • the concept of this new process is that the transducer is fed with a relatively high frequency AC voltage instead of continuously as before can now be repeated with a relatively low frequency (20 to 100 Hz), in particular periodically, clocked.
  • a relatively high (peak) power is supplied during a first time interval At 1 that the vibrator swings safely even with strong damping by, for example, attached drops.
  • ⁇ t 2 significantly lower electrical power or no power at all is supplied.
  • the clock ratio of At1 to dt 2 , the absolute time periods of the time intervals and the values of the electrical power values supplied in the time intervals are dimensioned in such a way that the thermal load on the vibrator resulting from the integrally resulting mean electrical power supply does not become impermissibly high and appropriate amount of liquid is still atomized.
  • a particularly advantageous development of the invention is to provide such a repetition for the time intervals ⁇ t 1 'and ⁇ t 2 , in which groups, each consisting of a plurality of successive clock cycles corresponding to the time intervals ⁇ t 1 , periodically follow one another.
  • the frequency of the succession of the groups is preferably selected to be the same as the clock frequency already mentioned, for example 20 to 100 Hz. With a clock frequency of such a frequency value it can be achieved that a liquid drop adhering to the vibrating worktop - depending on the consistency and adhesive force of the material of this droplet - is caused to oscillate on the surface of this worktop. During the worktop swinging phase such a drop of liquid preferably contracts in the center of this plate.
  • the oscillation amplitude of the oscillator does not reach the height of the final amplitude of the oscillation supply, but the increase stops at a predeterminable value of an upper threshold S 1 .
  • this oscillation then decays to a lower, predefinable threshold value.
  • a sawtooth-like time course of the oscillation amplitude of the oscillator can thus be achieved.
  • the frequency of this electrical signal to be picked up is equal to the natural resonance frequency of the vibrator and can be used for optimal control of the frequency of the excitation AC voltage for the supply in the first time interval according to 1 .
  • the occurrence of such an electrical signal in the second time interval Lt 2 is also a control for the oscillation and the atomization function in the first time interval ⁇ t 1 .
  • the level and the time profile - in particular the time constant - of the electrical signal in the time interval it 2 is also a measure of the vibration amplitude achieved in the time interval ⁇ t 1 .
  • a lower level of this electrical signal recorded in the time interval ⁇ t 2 indicates stronger damping of the ultrasonic vibrator and thus a relatively large supply of fluid.
  • the electrical feed power supplied can be increased in the time interval ⁇ t 1 or the amount of liquid supplied per unit of time reduced until the electrical signal taken off in the time interval ⁇ t 2 indicates that the liquid atomizer has again achieved optimal vibration behavior.
  • 1 denotes the entire ultrasonic vibrator.
  • This is, for example, an ultrasonic vibrator according to German Patent 20 32 433.
  • This vibrator comprises a piezoceramic disk 2 as a piezoelectric transducer, to which the electrical excitation voltage is to be applied.
  • the worktop is designated, on the surface 4 of which the liquid atomization 5 takes place.
  • 6 is a supply line with 7 an installed in the supply line for the pump to be supplied to the surface 4, to be atomized flues - called fluid.
  • the actual excitation electronics are designated by 11 and reference is made to an additional electronic circuit provided according to a further development, which is used to monitor the operational vibration behavior of the ultrasonic vibrator 1.
  • the electrical power output by the circuit 11 is fed to the converter 2 via the line 13.
  • the circuit 11 is fed at the connections 14, for example with 220 volts AC or also with 12 volts DC.
  • a connection line to the circuit 12 is designated, namely via the during the lunch break in the time interval ⁇ t 2, an electrical signal returned by the converter 2 can be supplied to this circuit 12.
  • the converter 2 has an additional (feedback) electrode which is connected to the circuit 12 via the line 15.
  • the line 16 between the circuits 11 and 12 serves to supply evaluation signals from the circuit 12 to the circuit 11 in order to control them.
  • This control can relate in particular to the frequency f of the excitation AC voltage (for example in the range of 100 kHz), to the upper threshold S 1 of the oscillation amplitude of the oscillator 1 and / or to the lower oscillation amplitude S 2 of the same.
  • Lines 17 indicate control signal outputs of circuit 12, e.g. to a light-emitting diode 18, which can serve as an operating signal lamp, and to the pump 7, the control of which from the circuit 12 can always ensure an adapted amount of the liquid supply to the surface 4 of the vibrator 1.
  • the diagram in FIG. 2 shows the electrical power N supplied to the converter 2 and thus to the oscillator 1 via the line 13, plotted over time.
  • the clocks 21 with the first time intervals ⁇ t 1 are the actual feed intervals. At these intervals, the vibrator 1 receives such a large electrical power that it itself and thus also the worktop 3 is reliably set in the required ultrasonic vibration, regardless of whether on the surface 4 of the plate 3 a more or less large liquid occupancy or a drop attached to it.
  • electrical power is supplied in accordance with the clocks 22.
  • the performance of clocks 22 can be so high be dimensioned such that continuous oscillation continuously causes further atomization 5.
  • the electrical power of the clocks 22 can, however, have the value zero, ie the oscillator 1 is allowed to swing out in the second time intervals ⁇ t 2 .
  • the clock ratio ⁇ t 1 : ( ⁇ t 1 + ⁇ t 2 ) is, for example, 4 ms: 20 ms, the latter value advantageously being derived from the mains frequency. It is important for the clock ratio that, together with the power ratio N 1 to N 2, the permissible mean electrical power to be supplied is not exceeded, but that the level of power N 1 is always guaranteed to start reliably.
  • FIG. 3 shows the diagram of the electrical power N, again plotted against the time t, but with groups of — in this example three cycles 31 each.
  • Each of these clock cycles 31 has the length of a time interval ⁇ t 1 'of, for example, 1 ms Duration.
  • the repetition of these bars 31 within a group is preferably periodic with. the frequency F 1 .
  • the groups 32 consist of the respective number of individual clock cycles 31 and preferably also have periodic repetition with the frequency F 2 .
  • this frequency F 2 is made large between 10 and 100 Hz, preferably 50 Hz (60 Hz).
  • the sum of the time intervals ⁇ t 1 'of an individual group 32 in relation to the period of the repetition frequency F 2 is important for the measure of the average electrical power already mentioned above.
  • FIG. 4 shows an amplitude profile of the oscillation of the vibrator 1 or the worktop 3 when the excitation power is supplied according to FIG. 3. Since between the last time interval ⁇ t 1 'of one group 32 and the first time interval 4t 1 ' the follow In group 32 according to FIG. 3, no electrical power supply is provided, an asymptotic decay takes place in this time interval At2 until it starts again.
  • FIG. 6 shows a complete circuit diagram for a circuit 11 for generating the electrical power that feeds the oscillator 1.
  • the repetition frequency is supplied by the generator 61 in this circuit.
  • the circuit part 63 is a driver stage and the transistor 64 is the final stage.
  • the circuit part 65 with the zener diode serves to correct a fluctuation in the supply voltage 66.
  • the further details of the circuit are readily apparent to the person skilled in the art from the circuit diagram.
  • FIG. 7 shows a circuit example for a circuit 12.
  • the circuit part provided for a signal delay and 72 the signal comparator are designated by 71.
  • This circuit diagram also requires no further explanation for the person skilled in the art.
  • a pre-pulse is shown at 35, which is supplied to the oscillator 1 before the actual atomizing operation is started.
  • This is preferably a burst pulse (oscillation packet) with advantageously one to twenty oscillations with a frequency that is at least approximately equal to the resonance frequency of the oscillator 1.
  • the pre-pulse triggers an oscillation of the oscillator 1 and its decay oscillation 45 (in FIG. 4) is, as already described above, for the initial control of the fre-. frequency f of the excitation AC voltage to be supplied via line 13 is used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Special Spraying Apparatus (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP84104426A 1983-04-22 1984-04-18 Méthode pour l'excitation d'un oscillateur ultrasonique pour pulvériser un liquide Expired EP0123277B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104426T ATE41887T1 (de) 1983-04-22 1984-04-18 Verfahren zum betrieb eines ultraschallschwingers zur fluessigkeitszerstaeubung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3314609 1983-04-22
DE19833314609 DE3314609A1 (de) 1983-04-22 1983-04-22 Verfahren zum betrieb eines ultraschall-schwingers zur fluessigkeitszerstaeubung

Publications (3)

Publication Number Publication Date
EP0123277A2 true EP0123277A2 (fr) 1984-10-31
EP0123277A3 EP0123277A3 (en) 1986-07-02
EP0123277B1 EP0123277B1 (fr) 1989-04-05

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EP84104426A Expired EP0123277B1 (fr) 1983-04-22 1984-04-18 Méthode pour l'excitation d'un oscillateur ultrasonique pour pulvériser un liquide

Country Status (3)

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EP (1) EP0123277B1 (fr)
AT (1) ATE41887T1 (fr)
DE (2) DE3314609A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0219693A1 (fr) * 1985-09-30 1987-04-29 Siemens Aktiengesellschaft Procédé pour actionner un pulvérisateur à ultrasons afin de pulvériser des fluides
EP0274136A2 (fr) * 1987-01-09 1988-07-13 William L. Puskas Générateur à paramètre multiple pour transducteurs ultrasonores
GB2265845B (en) * 1991-11-12 1996-05-01 Medix Ltd A nebuliser and nebuliser control system
US5834871A (en) * 1996-08-05 1998-11-10 Puskas; William L. Apparatus and methods for cleaning and/or processing delicate parts
US6016821A (en) * 1996-09-24 2000-01-25 Puskas; William L. Systems and methods for ultrasonically processing delicate parts
WO2000051747A1 (fr) * 1999-03-05 2000-09-08 S. C. Johnson & Son, Inc. Systeme de commande pour pulveriser des liquides avec un vibrateur piezo-electrique
US6313565B1 (en) 2000-02-15 2001-11-06 William L. Puskas Multiple frequency cleaning system
US7211928B2 (en) 1996-08-05 2007-05-01 Puskas William L Apparatus, circuitry, signals and methods for cleaning and/or processing with sound
US7211927B2 (en) 1996-09-24 2007-05-01 William Puskas Multi-generator system for an ultrasonic processing tank
EP1875969A1 (fr) * 2006-07-07 2008-01-09 L'oreal Générateur pour exciter un transducteur piézoélectrique
US7336019B1 (en) 2005-07-01 2008-02-26 Puskas William L Apparatus, circuitry, signals, probes and methods for cleaning and/or processing with sound
EP2244314A1 (fr) 2009-04-20 2010-10-27 Zobele Holding SpA Atomiseur des liquides avec dispositif à vibration piézoélectrique ayant un circuit de contrôle électronique amélioré, et méthode de l'activer
US9333523B2 (en) 2013-09-09 2016-05-10 Omnimist, Ltd. Atomizing spray apparatus
CN114130547A (zh) * 2021-11-18 2022-03-04 安徽理工大学 一种药剂汽化组件及应用该组件的射流浮选柱式装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6822372B2 (en) 1999-08-09 2004-11-23 William L. Puskas Apparatus, circuitry and methods for cleaning and/or processing with sound waves

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195172A5 (fr) * 1972-07-31 1974-03-01 Matsushita Electric Ind Co Ltd
FR2311595A1 (fr) * 1975-05-20 1976-12-17 Matsushita Electric Ind Co Ltd Generateur ultra-sonore et dispositif atomiseur de liquide en comportant application
EP0036186A2 (fr) * 1980-03-14 1981-09-23 Siemens Aktiengesellschaft Procédé pour l'excitation par impulsion d'un émetteur-transducteur piézo-électrique
DE3013964A1 (de) * 1980-04-11 1981-10-22 Jürgen F. 8011 Poing Strutz Ultraschallgenerator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2129665C3 (de) * 1970-06-30 1981-02-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen Vorrichtung zum Zerstäuben von Flüssigkeiten mit einem piezoelektrisch angeregten Schwingungssystem
DE2312442A1 (de) * 1973-03-13 1974-10-03 Siemens Ag Zerstaeuber fuer fluessigkeiten mit piezoelektrischem ultraschallschwinger
FR2421513A1 (fr) * 1978-03-31 1979-10-26 Gaboriaud Paul Atomiseur ultra-sonique a pilotage automatique
JPS5848225B2 (ja) * 1979-01-09 1983-10-27 オムロン株式会社 超音波液体霧化装置の霧化量制御方式

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195172A5 (fr) * 1972-07-31 1974-03-01 Matsushita Electric Ind Co Ltd
FR2311595A1 (fr) * 1975-05-20 1976-12-17 Matsushita Electric Ind Co Ltd Generateur ultra-sonore et dispositif atomiseur de liquide en comportant application
EP0036186A2 (fr) * 1980-03-14 1981-09-23 Siemens Aktiengesellschaft Procédé pour l'excitation par impulsion d'un émetteur-transducteur piézo-électrique
DE3013964A1 (de) * 1980-04-11 1981-10-22 Jürgen F. 8011 Poing Strutz Ultraschallgenerator

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6288476B1 (en) 1981-02-10 2001-09-11 William L. Puskas Ultrasonic transducer with bias bolt compression bolt
US4689515A (en) * 1985-09-30 1987-08-25 Siemens Aktiengesellschaft Method for operating an ultrasonic frequency generator
EP0219693A1 (fr) * 1985-09-30 1987-04-29 Siemens Aktiengesellschaft Procédé pour actionner un pulvérisateur à ultrasons afin de pulvériser des fluides
EP0274136A2 (fr) * 1987-01-09 1988-07-13 William L. Puskas Générateur à paramètre multiple pour transducteurs ultrasonores
EP0274136A3 (fr) * 1987-01-09 1989-08-02 William L. Puskas Générateur à paramètre multiple pour transducteurs ultrasonores
GB2265845B (en) * 1991-11-12 1996-05-01 Medix Ltd A nebuliser and nebuliser control system
US5551416A (en) * 1991-11-12 1996-09-03 Medix Limited Nebuliser and nebuliser control system
US7211928B2 (en) 1996-08-05 2007-05-01 Puskas William L Apparatus, circuitry, signals and methods for cleaning and/or processing with sound
US6181051B1 (en) 1996-08-05 2001-01-30 William L. Puskas Apparatus and methods for cleaning and/or processing delicate parts
US6002195A (en) * 1996-08-05 1999-12-14 Puskas; William L. Apparatus and methods for cleaning and/or processing delicate parts
US5834871A (en) * 1996-08-05 1998-11-10 Puskas; William L. Apparatus and methods for cleaning and/or processing delicate parts
US6433460B1 (en) 1996-08-05 2002-08-13 William L. Puskas Apparatus and methods for cleaning and/or processing delicate parts
US6946773B2 (en) 1996-08-05 2005-09-20 Puskas William L Apparatus and methods for cleaning and/or processing delicate parts
US6914364B2 (en) 1996-08-05 2005-07-05 William L. Puskas Apparatus and methods for cleaning and/or processing delicate parts
US6538360B2 (en) 1996-08-05 2003-03-25 William L. Puskas Multiple frequency cleaning system
US6016821A (en) * 1996-09-24 2000-01-25 Puskas; William L. Systems and methods for ultrasonically processing delicate parts
US7211927B2 (en) 1996-09-24 2007-05-01 William Puskas Multi-generator system for an ultrasonic processing tank
US6172444B1 (en) 1996-09-24 2001-01-09 William L. Puskas Power system for impressing AC voltage across a capacitive element
US6242847B1 (en) 1996-09-24 2001-06-05 William L. Puskas Ultrasonic transducer with epoxy compression elements
US7004016B1 (en) 1996-09-24 2006-02-28 Puskas William L Probe system for ultrasonic processing tank
AU767322B2 (en) * 1999-03-05 2003-11-06 S.C. Johnson & Son, Inc. Control system for atomizing liquids with a piezoelectric vibrator
JP2002537985A (ja) * 1999-03-05 2002-11-12 エス．シー． ジョンソン アンド サン、インコーポレイテッド 圧電振動器を用いて液体を噴霧化する制御システム
US6439474B2 (en) 1999-03-05 2002-08-27 S. C. Johnson & Son, Inc. Control system for atomizing liquids with a piezoelectric vibrator
US6296196B1 (en) 1999-03-05 2001-10-02 S. C. Johnson & Son, Inc. Control system for atomizing liquids with a piezoelectric vibrator
WO2000051747A1 (fr) * 1999-03-05 2000-09-08 S. C. Johnson & Son, Inc. Systeme de commande pour pulveriser des liquides avec un vibrateur piezo-electrique
US6313565B1 (en) 2000-02-15 2001-11-06 William L. Puskas Multiple frequency cleaning system
US7336019B1 (en) 2005-07-01 2008-02-26 Puskas William L Apparatus, circuitry, signals, probes and methods for cleaning and/or processing with sound
FR2903331A1 (fr) * 2006-07-07 2008-01-11 Oreal Generateur pour exciter un transducteur piezoelectrique
EP1875969A1 (fr) * 2006-07-07 2008-01-09 L'oreal Générateur pour exciter un transducteur piézoélectrique
US7960894B2 (en) 2006-07-07 2011-06-14 L'oreal S.A. Generator for exciting piezoelectric transducer
EP2244314A1 (fr) 2009-04-20 2010-10-27 Zobele Holding SpA Atomiseur des liquides avec dispositif à vibration piézoélectrique ayant un circuit de contrôle électronique amélioré, et méthode de l'activer
US9333523B2 (en) 2013-09-09 2016-05-10 Omnimist, Ltd. Atomizing spray apparatus
CN114130547A (zh) * 2021-11-18 2022-03-04 安徽理工大学 一种药剂汽化组件及应用该组件的射流浮选柱式装置
CN114130547B (zh) * 2021-11-18 2023-06-16 安徽理工大学 一种药剂汽化组件及应用该组件的射流浮选柱式装置

Also Published As

Publication number Publication date
DE3314609A1 (de) 1984-10-25
ATE41887T1 (de) 1989-04-15
EP0123277B1 (fr) 1989-04-05
EP0123277A3 (en) 1986-07-02
DE3477550D1 (en) 1989-05-11

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