CH295726A - Ultrasonic generator with an electrical high frequency generator and a piezoelectric crystal element. - Google Patents

Ultrasonic generator with an electrical high frequency generator and a piezoelectric crystal element.

Info

Publication number: CH295726A
Authority: CH; Switzerland
Prior art keywords: generator; high frequency; crystal element; piezoelectric crystal; electrical high
Prior art date: 1949-11-02

Application number

Other languages

German (de)

Inventor

Gmbh Dr Lehfeldt Co

Original Assignee

Lehfeldt & Co Gmbh Dr

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.)

1949-11-02

Filing date

1949-11-02

Publication date

1954-01-15

1949-11-02 Application filed by Lehfeldt & Co Gmbh Dr filed Critical Lehfeldt & Co Gmbh Dr

1954-01-15 Publication of CH295726A publication Critical patent/CH295726A/en

Classifications

- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/46—Dielectric heating
- H05B6/48—Circuits
- H05B6/50—Circuits for monitoring or control
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/40—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals
- 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
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/46—Dielectric heating
- H05B6/48—Circuits
- 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
- B06B2201/40—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups with testing, calibrating, safety devices, built-in protection, construction details
- 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

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Electromagnetism (AREA)
Health & Medical Sciences (AREA)
Animal Behavior & Ethology (AREA)
Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
Radiology & Medical Imaging (AREA)
Life Sciences & Earth Sciences (AREA)
Biomedical Technology (AREA)
General Health & Medical Sciences (AREA)
Public Health (AREA)
Veterinary Medicine (AREA)
Computer Networks & Wireless Communication (AREA)
Mechanical Engineering (AREA)
Power Engineering (AREA)
General Physics & Mathematics (AREA)
Transformers For Measuring Instruments (AREA)

CH295726D 1949-11-02 1949-11-02 Ultrasonic generator with an electrical high frequency generator and a piezoelectric crystal element. CH295726A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH295726T		1949-11-02

Publications (1)

Publication Number	Publication Date
CH295726A true CH295726A (en)	1954-01-15

Family

ID=9711820

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH295726D CH295726A (en)	1949-11-02	1949-11-02	Ultrasonic generator with an electrical high frequency generator and a piezoelectric crystal element.

Country Status (5)

Country	Link
BE (1)	BE499119A (en)
CH (1)	CH295726A (en)
FR (1)	FR1028161A (en)
GB (1)	GB694520A (en)
NL (1)	NL77978C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1030444B (en) *	1952-09-23	1958-05-22	Th Schultes Dr Ing	Vibration generator with series resonance consumer
US4493062A (en) *	1983-12-12	1985-01-08	Halliburton Company	Resonant frequency modification of piezoelectric transducers
US4629851A (en) *	1984-09-20	1986-12-16	Siemens Aktiengesellschaft	Apparatus for heating a layer of dielectric material using radio frequency waves
JP3165701B2 (en) *	1991-03-06	2001-05-14	キヤノン株式会社	Vibration wave motor

1949
- 1949-11-02 CH CH295726D patent/CH295726A/en unknown
1950
- 1950-11-02 BE BE499119D patent/BE499119A/xx unknown
- 1950-11-02 NL NL157043A patent/NL77978C/xx active
- 1950-11-02 FR FR1028161D patent/FR1028161A/en not_active Expired
1951
- 1951-01-11 GB GB86451A patent/GB694520A/en not_active Expired

Also Published As

Publication number	Publication date
BE499119A (en)	1951-03-01
NL77978C (en)	1955-05-16
FR1028161A (en)	1953-05-20
GB694520A (en)	1953-07-22

Publication	Publication Date	Title
CH289749A (en)	1953-03-31	Ultrasonic vibrator.
FR1028835A (en)	1953-05-28	Relaxation oscillator
FR950714A (en)	1949-10-05	High frequency pulse generator
FR65133E (en)	1956-01-26	Electrical oscillation generator assembly
FR1011492A (en)	1952-06-23	High frequency generator comprising a semiconductor with several electrodes
FR1028161A (en)	1953-05-20	High frequency electric generator, especially for powering a piezoelectric or magnetostrictive ultrasonic wave generator
DK70623C (en)	1950-02-13	Electric sound box with piezoelectric crystal.
FR1048331A (en)	1953-12-21	Frequency modulated electric oscillators
CA456032A (en)	1949-04-19	Pulse-modulated oscillation generator
CA460646A (en)	1949-10-25	Electronic high voltage generator discharge device
IE21029L (en)	1950-04-28	Saw-tooth wave generator
CA460879A (en)	1949-11-08	Electric wave generator
AT169246B (en)	1951-10-25	Injector
FR1010196A (en)	1952-06-09	Sine Wave Oscillators Improvements
CA446263A (en)	1948-01-20	Electrical oscillation generator and time base
FR989536A (en)	1951-09-10	Advanced vibrator
AT168856B (en)	1951-09-10	Ultrasonic generator
FI24836A (en)	1951-01-10	Vibration chamber of the ultrasonic generator
AU146446B2 (en)	1949-09-22	Oscillation Generator
CA453896A (en)	1949-01-04	Oscillation generator
AT171947B (en)	1952-07-25	Power generation plant
CH288571A (en)	1953-01-31	Piezoelectric crystal element.
CH295226A (en)	1953-12-15	Piezoelectric crystal element.
AU148526B2 (en)	1949-11-17	Improved sawtooth wave generator
CA455023A (en)	1949-03-08	Electric oscillation generator and amplifier