FR2227729A5 - Ultrasonic wave generator - output impedance converter inductively coupled to input by inductance in series with resistance - Google Patents

Ultrasonic wave generator - output impedance converter inductively coupled to input by inductance in series with resistance

Info

Publication number
FR2227729A5
FR2227729A5 FR7315070A FR7315070A FR2227729A5 FR 2227729 A5 FR2227729 A5 FR 2227729A5 FR 7315070 A FR7315070 A FR 7315070A FR 7315070 A FR7315070 A FR 7315070A FR 2227729 A5 FR2227729 A5 FR 2227729A5
Authority
FR
France
Prior art keywords
inductance
series
resistance
inductively coupled
impedance converter
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
Application number
FR7315070A
Other languages
French (fr)
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.)
GABORIAUD PAUL LOUIS
Original Assignee
GABORIAUD PAUL LOUIS
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 GABORIAUD PAUL LOUIS filed Critical GABORIAUD PAUL LOUIS
Priority to FR7315070A priority Critical patent/FR2227729A5/en
Application granted granted Critical
Publication of FR2227729A5 publication Critical patent/FR2227729A5/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • 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
    • 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
    • B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
    • B06B1/0246—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal
    • B06B1/0253—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal taken directly from the generator circuit
    • 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
    • B06B2201/77—Atomizers

Abstract

Ultrasonic waves are generated by piezo-electric crystals automatically regulating the frequency, using an auto-oscillating electronic circuit. At the output there is a pi-cell type impedance converter, inductively coupled to the input circuit by an inductance in series with a resistance, so as to create rigid fronts breaking the output current. These fronts excite the crystal emitter by shock, causing it to oscillate at natural frequency, and thus synchronise or automatically regulate the auto-oscillator at this frequency. The auto-oscillator can be in the form of an electronic valve, preferably a pentode or tetrode, or of one or more transistor stages.
FR7315070A 1973-04-26 1973-04-26 Ultrasonic wave generator - output impedance converter inductively coupled to input by inductance in series with resistance Expired FR2227729A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7315070A FR2227729A5 (en) 1973-04-26 1973-04-26 Ultrasonic wave generator - output impedance converter inductively coupled to input by inductance in series with resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7315070A FR2227729A5 (en) 1973-04-26 1973-04-26 Ultrasonic wave generator - output impedance converter inductively coupled to input by inductance in series with resistance

Publications (1)

Publication Number Publication Date
FR2227729A5 true FR2227729A5 (en) 1974-11-22

Family

ID=9118504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7315070A Expired FR2227729A5 (en) 1973-04-26 1973-04-26 Ultrasonic wave generator - output impedance converter inductively coupled to input by inductance in series with resistance

Country Status (1)

Country Link
FR (1) FR2227729A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536311A1 (en) * 1982-11-24 1984-05-25 Satelec Soc Electrical supply device for an ultrasonic-vibration generator transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536311A1 (en) * 1982-11-24 1984-05-25 Satelec Soc Electrical supply device for an ultrasonic-vibration generator transducer

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Legal Events

Date Code Title Description
ST Notification of lapse