GB1405187A - Arrangement for generating oscillations - Google Patents

Arrangement for generating oscillations

Info

Publication number
GB1405187A
GB1405187A GB6003572A GB6003572A GB1405187A GB 1405187 A GB1405187 A GB 1405187A GB 6003572 A GB6003572 A GB 6003572A GB 6003572 A GB6003572 A GB 6003572A GB 1405187 A GB1405187 A GB 1405187A
Authority
GB
United Kingdom
Prior art keywords
oscillator
transducer
switch
integrator
tuned
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
GB6003572A
Inventor
I M G P Bourgeois
H P C Daniels
R J C C Verlet
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1405187A publication Critical patent/GB1405187A/en
Expired 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
    • B06B2201/50—Application to a particular transducer type
    • B06B2201/55—Piezoelectric transducer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

1405187 Automatic frequency control PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 Dec 1972 [3 Jan 1972] 60035/72 Heading H3A An automatic frequency control system, Fig. 1, for maintaining an oscillator 3 tuned to the natural frequency of a transducer 1, comprising a comparator 6 for comparing the phase difference between the current and voltage supplied to the transducer 1 to produce a width modulated pulse train varying in depedence on the phase difference, is characterized in that the oscillator is tuned by the output voltage from an integrator 18 which is fed with the width modulated pulses via a switch 21 when the oscillator is on and which is fed with a predetermined voltage via a further switch 29 each time the oscillator is switched off. The oscillator 1 is switched off by a switch 13 which disconnects the supply 16 from the oscillator, and connects it, via line 15, to charge integrator capacitor 18 to a potential which will cause varactor 7 to tune the oscillator to a frequency lower than the natural frequency of the transducer. When the oscillator is again switched on, integrator capacitor 18 is connected to charge from current source 19 until the charging current from this source balances the charge applied via switch 21, when the oscillator is tuned to the transducer. In a modification, Fig. 2, the integrator comprises amplifier 37 and capacitor 39 and the supply line 15 and comparator 6 are both connected to transistor 33 via an OR gate 42.
GB6003572A 1972-01-03 1972-12-29 Arrangement for generating oscillations Expired GB1405187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7200003A NL7200003A (en) 1972-01-03 1972-01-03

Publications (1)

Publication Number Publication Date
GB1405187A true GB1405187A (en) 1975-09-03

Family

ID=19815077

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6003572A Expired GB1405187A (en) 1972-01-03 1972-12-29 Arrangement for generating oscillations

Country Status (12)

Country Link
US (1) US3819961A (en)
JP (1) JPS527341B2 (en)
AT (1) AT326383B (en)
BE (1) BE793601A (en)
CA (1) CA984955A (en)
CH (1) CH550511A (en)
DE (1) DE2261712C3 (en)
FR (1) FR2167621B1 (en)
GB (1) GB1405187A (en)
IT (1) IT974427B (en)
NL (1) NL7200003A (en)
SE (1) SE375428B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156174A (en) * 1984-03-21 1985-10-02 Plessey Co Plc Electrical oscillator tuning arrangement
GB2192512A (en) * 1986-05-12 1988-01-13 Rawson Francis F H Ultrasonic devices
GB2224375A (en) * 1987-07-08 1990-05-02 Weinert E Messgeraetewerk Electronic excitation of a spring-mass vibrator

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2344065C2 (en) * 1973-08-31 1975-10-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Arrangement for actuating dot-generating printing elements in a mosaic print head
US3889166A (en) * 1974-01-15 1975-06-10 Quintron Inc Automatic frequency control for a sandwich transducer using voltage feedback
US4012647A (en) * 1974-01-31 1977-03-15 Ultrasonic Systems, Inc. Ultrasonic motors and converters
US3967143A (en) * 1974-10-10 1976-06-29 Oki Electric Industry Company, Ltd. Ultrasonic wave generator
US3975650A (en) * 1975-01-30 1976-08-17 Payne Stephen C Ultrasonic generator drive circuit
US4371816A (en) * 1975-12-30 1983-02-01 Alfred Wieser Control circuit for an ultrasonic dental scaler
US4227110A (en) * 1976-11-10 1980-10-07 Westinghouse Electric Corp. Transducer control system
DE2710049C2 (en) * 1977-03-08 1985-03-07 MEDTRONIC medizinisch-elektronische Gerätegesellschaft mbH, 6390 Usingen Ultrasonic dental treatment device
DE2721225C2 (en) * 1977-05-11 1981-10-29 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for frequency self-control of an ultrasonic transmitter transducer
FR2421513A1 (en) * 1978-03-31 1979-10-26 Gaboriaud Paul ULTRA-SONIC ATOMIZER WITH AUTOMATIC CONTROL
DE2847208C2 (en) * 1978-10-30 1983-11-24 Siegas Metallwarenfabrik Wilhelm Loh Gmbh & Co Kg, 5900 Siegen Control circuit for a vibratory electromechanical system
US4277710A (en) * 1979-04-30 1981-07-07 Dukane Corporation Control circuit for piezoelectric ultrasonic generators
US4341574A (en) * 1980-08-25 1982-07-27 Texas Instruments Incorporated Ultrasonic bond energy monitor
JPS58763A (en) * 1981-06-25 1983-01-05 Honda Motor Co Ltd Gas rate sensor
US4469974A (en) * 1982-06-14 1984-09-04 Eaton Corporation Low power acoustic fuel injector drive circuit
ATE35920T1 (en) * 1984-09-04 1988-08-15 Med Inventio Ag POWER GENERATOR FOR AN ULTRASONIC TRANSDUCER.
GB8522819D0 (en) * 1985-09-16 1985-10-23 Mccracken W Control of vibration energisation
JPS61115173U (en) * 1985-12-20 1986-07-21
JPH0690101B2 (en) * 1986-03-28 1994-11-14 株式会社長野計器製作所 Gas pressure gauge
US4687962A (en) * 1986-12-15 1987-08-18 Baxter Travenol Laboratories, Inc. Ultrasonic horn driving apparatus and method with active frequency tracking
EP0401802B1 (en) * 1989-06-07 1995-02-08 Nippondenso Co., Ltd. Drive system of actuator having piezoelectric device for use in motor vehicle
US5113116A (en) * 1989-10-05 1992-05-12 Firma J. Eberspacher Circuit arrangement for accurately and effectively driving an ultrasonic transducer
US5097171A (en) * 1989-10-24 1992-03-17 Nippondenso Co., Ltd. Piezo-actuator shock absorber damping force controlling system having abnormality detection function
DE4035084A1 (en) * 1990-11-05 1992-05-07 Jenoptik Jena Gmbh ARRANGEMENT FOR MEASURING LINEAR DIMENSIONS ON A STRUCTURED SURFACE OF A MEASURED OBJECT
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
US5989275A (en) * 1997-02-28 1999-11-23 Ethicon Endo-Surgery, Inc. Damping ultrasonic transmission components
US5810859A (en) * 1997-02-28 1998-09-22 Ethicon Endo-Surgery, Inc. Apparatus for applying torque to an ultrasonic transmission component
US5968060A (en) * 1997-02-28 1999-10-19 Ethicon Endo-Surgery, Inc. Ultrasonic interlock and method of using the same
AU6357298A (en) 1997-04-28 1998-10-29 Ethicon Endo-Surgery, Inc. Methods and devices for controlling the vibration of ultrasonic transmission components
US6571643B1 (en) * 1998-08-13 2003-06-03 Electronics For Imaging, Inc. Ultrasound speed measurement of temperature and pressure effects
GB9924158D0 (en) 1999-10-12 1999-12-15 Lifecare Designs Limited Nebuliser
CA2441411A1 (en) * 2001-03-21 2002-10-03 Forward Technology Industries, Inc. Method and apparatus for linear vibration welding
US20030192532A1 (en) * 2002-04-12 2003-10-16 Hopkins Andrew David Nebulizer
DE102004020895B4 (en) * 2004-04-28 2012-05-24 Endress + Hauser Gmbh + Co. Kg Device for determining and / or monitoring the level of a medium
US20080209650A1 (en) * 2005-05-03 2008-09-04 Ultreo, Inc. Oral hygiene devices
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
AU2010273955B2 (en) 2009-07-17 2015-08-06 Nektar Therapeutics Negatively biased sealed nebulizers systems and methods
EP2453864B1 (en) * 2009-07-17 2016-09-14 Nektar Therapeutics Systems and methods for driving sealed nebulizers
EP2409664B1 (en) * 2010-07-22 2013-10-30 W & H Dentalwerk Bürmoos GmbH Medicinal treatment device and method for regulating same
CN103302015B (en) * 2013-06-26 2015-07-15 杭州电子科技大学 Circuit for driving high-power ultrasonic transducer by one square wave
IL217513A0 (en) 2013-09-04 2012-02-29 Nektar Therapeutics Negatively biased sealed nebulizers systems and methods
BR112017023177B1 (en) 2015-05-08 2021-11-30 Dow Global Technologies Llc PROCESS FOR FORMING A POLYOLEFIN FOAM, FOAMING POLYOLEFIN, CABLE AND FOAMING POLYOLEFIN COMPOSITION
DE102016211729A1 (en) * 2016-06-29 2018-01-04 Robert Bosch Gmbh Method for operating an ultrasonic drilling machine
US20190346692A1 (en) * 2018-05-09 2019-11-14 Johnson & Johnson Vision Care, Inc. Electronic ophthalmic lens for measuring distance using ultrasound time-of-flight

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1321200A (en) * 1961-05-01 1963-03-15 Bendix Corp Advanced ultrasonic generators
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156174A (en) * 1984-03-21 1985-10-02 Plessey Co Plc Electrical oscillator tuning arrangement
GB2192512A (en) * 1986-05-12 1988-01-13 Rawson Francis F H Ultrasonic devices
GB2224375A (en) * 1987-07-08 1990-05-02 Weinert E Messgeraetewerk Electronic excitation of a spring-mass vibrator

Also Published As

Publication number Publication date
NL7200003A (en) 1973-07-05
FR2167621B1 (en) 1977-04-22
FR2167621A1 (en) 1973-08-24
CH550511A (en) 1974-06-14
DE2261712C3 (en) 1980-08-28
DE2261712A1 (en) 1973-07-19
AT326383B (en) 1975-12-10
US3819961A (en) 1974-06-25
JPS4879613A (en) 1973-10-25
SE375428B (en) 1975-04-14
JPS527341B2 (en) 1977-03-01
IT974427B (en) 1974-06-20
DE2261712B2 (en) 1979-12-13
CA984955A (en) 1976-03-02
ATA1116172A (en) 1975-02-15
BE793601A (en) 1973-07-02

Similar Documents

Publication Publication Date Title
GB1405187A (en) Arrangement for generating oscillations
GB1256188A (en) Generator for producing ultrasonic oscillations
GB1447507A (en) Frequency stabilised oscillator circuit arrangements
GB1479516A (en) Pulse generator with automatic timing adjustment
GB1293320A (en) Gated power supply for sonic cleaners
GB2204134A (en) Processing a pseudo-oscillatory signal
GB1401391A (en) Oscillators
US5278521A (en) Power saving frequency synthesizer with fast pull-in feature
US3586884A (en) Circuit to control the duration of pulses
GB1285624A (en) Circuit for controlling frequency with voltage
US3204195A (en) Oscillator frequency stabilization during loss of afc signal
GB1330715A (en) Electronci oscillators
GB1391538A (en) Electrical oscillators
US2492168A (en) Modulator
GB1250777A (en)
US2520125A (en) Pulse code system
US4121170A (en) Tunable oscillator with high stability and accurate frequency
GB1416261A (en) System for the transmission of data elements by linear frequency modulation
GB1259710A (en) Oscillators
GB1392096A (en) Voltage regulator circuits
GB1280104A (en) Circuit for regulating the mean frequency of an oscillating system
JPS5486256A (en) Frequency control circuit
GB1126899A (en) Improvements in or relating to circuit arrangements for synchronizing oscillators
US2509235A (en) Pulsed oscillator
GB1360626A (en) Frequency controlled oscillator

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee