CH389455A - Electronic vibrator - Google Patents
Electronic vibratorInfo
- Publication number
- CH389455A CH389455A CH1029663A CH1029663A CH389455A CH 389455 A CH389455 A CH 389455A CH 1029663 A CH1029663 A CH 1029663A CH 1029663 A CH1029663 A CH 1029663A CH 389455 A CH389455 A CH 389455A
- Authority
- CH
- Switzerland
- Prior art keywords
- membrane
- transistor
- permanent magnet
- vibrator
- magnetic field
- Prior art date
Links
- 230000005291 magnetic effect Effects 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/24—Constructional features of resonators of material which is not piezoelectric, electrostrictive, or magnetostrictive
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Description
<Desc/Clms Page number 1>
Vibreur électronique La présente invention a pour objet un vibreur électronique.
Ce vibreur est caractérisé par le fait qu'il comprend d'une part une membrane ferromagnétique vibrante, fermant un circuit magnétique comportant un aimant permanent, et d'autre part un circuit électronique d'entretien, à transistor, comprenant deux enroulements dont l'un, alimenté lorsque ledit transistor est conducteur, produit un champ magnétique contraire à celui dudit aimant permanent, faisant ainsi vibrer ladite membrane, et dont l'autre applique au transistor un signal induit par les variations du champ magnétique.
Le dessin représente, à titre d'exemple, une forme d'exécution de l'objet de l'invention.
La figure est une coupe axiale d'un vibreur électronique.
Le présent vibreur comprend un boîtier 1 portant, encastré par sa périphérie, une membrane ferromagnétique vibrante 2, maintenue en place et protégée par un couvercle ajouré 3. Ce boîtier, en fer doux, constitue, en outre, la culasse d'un circuit magnétique, fermé par la membrane 2, comportant un aimant permanent 4, perpendiculaire à la membrane et disposé en regard du centre de celle-ci. Cet aimant permanent est entouré d'un enroulement 5, destiné à produire un champ magnétique contraire à celui de l'aimant 4 ; un enroulement 6, dit capteur , est disposé coaxialement à l'enroulement 5.
Le circuit électronique d'entretien de ce vibreur, alimenté par une source 7 de courant continu, comprend un transistor 8 dont l'émetteur est relié, d'une part à l'un des pôles de l'enroulement ou bobine 5, et d'autre part à l'un des pôles de la bobine 6. Le second pôle de ces deux bobines est relié respectivement au collecteur et à la base du transistor. Les impulsions induites dans la bobine 6 par les variations du champ magnétique débloquent le transistor qui laisse alors passer le courant de la source 7 dans la bobine 5. Celle-ci produit alors les variations de champ magnétique qui déforment la membrane 2.
Il est à remarquer qu'un condensateur 9 est monté en parallèle avec la bobine 5. Son but est de protéger le transistor 8 en limitant la surtension qui se produit aux bornes de la bobine 5, en raison de la self-induction, lorsque le courant est coupé dans cette bobine par le blocage du transistor.
<Desc / Clms Page number 1>
Electronic vibrator The present invention relates to an electronic vibrator.
This vibrator is characterized by the fact that it comprises on the one hand a vibrating ferromagnetic membrane, closing a magnetic circuit comprising a permanent magnet, and on the other hand an electronic maintenance circuit, with transistor, comprising two windings of which the one, supplied when said transistor is conductive, produces a magnetic field opposite to that of said permanent magnet, thus causing said membrane to vibrate, and the other of which applies to the transistor a signal induced by variations in the magnetic field.
The drawing represents, by way of example, an embodiment of the object of the invention.
The figure is an axial section of an electronic vibrator.
The present vibrator comprises a housing 1 carrying, embedded by its periphery, a vibrating ferromagnetic membrane 2, held in place and protected by a perforated cover 3. This housing, made of soft iron, also constitutes the cylinder head of a magnetic circuit. , closed by the membrane 2, comprising a permanent magnet 4, perpendicular to the membrane and disposed opposite the center thereof. This permanent magnet is surrounded by a winding 5, intended to produce a magnetic field opposite to that of the magnet 4; a winding 6, called a sensor, is arranged coaxially with the winding 5.
The electronic maintenance circuit of this vibrator, supplied by a source 7 of direct current, comprises a transistor 8 whose emitter is connected, on the one hand to one of the poles of the winding or coil 5, and d 'on the other hand to one of the poles of the coil 6. The second pole of these two coils is connected respectively to the collector and to the base of the transistor. The pulses induced in the coil 6 by the variations in the magnetic field unblock the transistor which then lets the current from the source 7 pass into the coil 5. The latter then produces the variations in the magnetic field which deform the membrane 2.
It should be noted that a capacitor 9 is mounted in parallel with the coil 5. Its purpose is to protect the transistor 8 by limiting the overvoltage which occurs at the terminals of the coil 5, due to the self-induction, when the Current is cut in this coil by blocking the transistor.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1029663A CH389455A (en) | 1963-08-20 | 1963-08-20 | Electronic vibrator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1029663A CH389455A (en) | 1963-08-20 | 1963-08-20 | Electronic vibrator |
Publications (1)
Publication Number | Publication Date |
---|---|
CH389455A true CH389455A (en) | 1965-03-15 |
Family
ID=4361644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1029663A CH389455A (en) | 1963-08-20 | 1963-08-20 | Electronic vibrator |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH389455A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51129473U (en) * | 1975-04-04 | 1976-10-19 | ||
DE2800863A1 (en) * | 1977-01-11 | 1978-07-13 | Star Mfg Co | SOUND SIGNAL DEVICE |
-
1963
- 1963-08-20 CH CH1029663A patent/CH389455A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51129473U (en) * | 1975-04-04 | 1976-10-19 | ||
JPS5328377Y2 (en) * | 1975-04-04 | 1978-07-17 | ||
DE2800863A1 (en) * | 1977-01-11 | 1978-07-13 | Star Mfg Co | SOUND SIGNAL DEVICE |
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