EP0247752A3 - Method of tuning an ultrasonic device, ultrasonic device and machine for performing an ultrasonic tooling operation - Google Patents

Method of tuning an ultrasonic device, ultrasonic device and machine for performing an ultrasonic tooling operation Download PDF

Info

Publication number
EP0247752A3
EP0247752A3 EP87304161A EP87304161A EP0247752A3 EP 0247752 A3 EP0247752 A3 EP 0247752A3 EP 87304161 A EP87304161 A EP 87304161A EP 87304161 A EP87304161 A EP 87304161A EP 0247752 A3 EP0247752 A3 EP 0247752A3
Authority
EP
European Patent Office
Prior art keywords
ultrasonic
ultrasonic device
error signal
driven
tuning
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Withdrawn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
EP87304161A
Other languages
German (de)
French (fr)
Other versions
EP0247752A2 (en
Inventor
Francis Frederick Hamilton Rawson
Brian Wilson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0247752A2 publication Critical patent/EP0247752A2/en
Publication of EP0247752A3 publication Critical patent/EP0247752A3/en
Withdrawn legal-status Critical Current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
    • B06B1/0207—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
    • B06B2201/70—Specific application
    • B06B2201/72—Welding, joining, soldering

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

To ensure that an ultrasonic tool is driven at an optimum frequency, the phases of the voltage applied to the tranducer and the current flowing through the tranducer are compared, and an error signal is generated dependant upon the divergence of the phase difference from a desired difference, which may be zero phase difference. The error signal is functional to vary the frequency at which the ultrasonic device is driven, in the direction to reduce the error signal, so that the ultrasonic device can be driven at zero error signal (i.e. the desired current/voltage phase relationship) and thus at maximum efficiency.
EP87304161A 1986-05-12 1987-05-11 Method of tuning an ultrasonic device, ultrasonic device and machine for performing an ultrasonic tooling operation Withdrawn EP0247752A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868611510A GB8611510D0 (en) 1986-05-12 1986-05-12 Ultrasonic devices
GB8611510 1986-05-12

Publications (2)

Publication Number Publication Date
EP0247752A2 EP0247752A2 (en) 1987-12-02
EP0247752A3 true EP0247752A3 (en) 1988-08-03

Family

ID=10597719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87304161A Withdrawn EP0247752A3 (en) 1986-05-12 1987-05-11 Method of tuning an ultrasonic device, ultrasonic device and machine for performing an ultrasonic tooling operation

Country Status (2)

Country Link
EP (1) EP0247752A3 (en)
GB (2) GB8611510D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5001649A (en) * 1987-04-06 1991-03-19 Alcon Laboratories, Inc. Linear power control for ultrasonic probe with tuned reactance
US4966131A (en) * 1988-02-09 1990-10-30 Mettler Electronics Corp. Ultrasound power generating system with sampled-data frequency control
DE4400210A1 (en) * 1994-01-05 1995-08-10 Branson Ultraschall Method and device for operating a generator for the HF energy supply of an ultrasonic transducer
JP3191003B2 (en) * 1996-09-06 2001-07-23 株式会社クボタ Diesel engine subchamber combustion chamber
DE102007013055B4 (en) * 2007-03-19 2015-11-26 Sauer Ultrasonic Gmbh Method and device for determining the frequency characteristic and for operating an ultrasonic tool

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917691A (en) * 1956-07-10 1959-12-15 Aeroprojects Inc Automatic power and frequency control for electromechanical devices
US3447051A (en) * 1965-01-13 1969-05-27 Union Special Machine Co Control circuit for electro-mechanical devices
US3472063A (en) * 1967-04-17 1969-10-14 Branson Instr Resonant sensing device
US3743868A (en) * 1970-10-12 1973-07-03 Denki Onkyo Co Ltd Driving apparatus for piezoelectric ceramic elements
US3808752A (en) * 1972-07-10 1974-05-07 Comtec Economation Method of automatically adjusting the frequency of crystal resonators
US3819961A (en) * 1972-01-03 1974-06-25 Philips Corp Arrangement for generating ultrasonic oscillations

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB990702A (en) * 1962-04-18 1965-04-28 George Andrew Douglas Gordon Ultrasonic transducers
US3743960A (en) * 1972-03-01 1973-07-03 Rca Corp Circuit for driving frequency standard such as tuning fork
DE3120196C2 (en) * 1981-05-21 1985-02-14 Leybold-Heraeus GmbH, 5000 Köln High frequency generator for the supply of a mass spectrometer
ATE35920T1 (en) * 1984-09-04 1988-08-15 Med Inventio Ag POWER GENERATOR FOR AN ULTRASONIC TRANSDUCER.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917691A (en) * 1956-07-10 1959-12-15 Aeroprojects Inc Automatic power and frequency control for electromechanical devices
US3447051A (en) * 1965-01-13 1969-05-27 Union Special Machine Co Control circuit for electro-mechanical devices
US3472063A (en) * 1967-04-17 1969-10-14 Branson Instr Resonant sensing device
US3743868A (en) * 1970-10-12 1973-07-03 Denki Onkyo Co Ltd Driving apparatus for piezoelectric ceramic elements
US3819961A (en) * 1972-01-03 1974-06-25 Philips Corp Arrangement for generating ultrasonic oscillations
US3808752A (en) * 1972-07-10 1974-05-07 Comtec Economation Method of automatically adjusting the frequency of crystal resonators

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ULTRASONICS, vol. 23, no. 4, July 1985, pages 151-156, Guildford, GB; A. RAMOS-FERNANDEZ et al.: "Automatic system for dynamic control of resonance in high power and high Q ultrasonic transducers" *

Also Published As

Publication number Publication date
GB8611510D0 (en) 1986-06-18
GB2192512A (en) 1988-01-13
EP0247752A2 (en) 1987-12-02
GB8711147D0 (en) 1987-06-17

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Inventor name: WILSON,BRIAN

Inventor name: RAWSON,FRANCIS FREDERICK HAMILTON