DE741115C - Arrangement for the pre-magnetization of high-frequency iron core coils - Google Patents

Arrangement for the pre-magnetization of high-frequency iron core coils

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Publication number
DE741115C
DE741115C DEB174432D DEB0174432D DE741115C DE 741115 C DE741115 C DE 741115C DE B174432 D DEB174432 D DE B174432D DE B0174432 D DEB0174432 D DE B0174432D DE 741115 C DE741115 C DE 741115C
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DE
Germany
Prior art keywords
frequency
coils
iron core
magnetic
core coils
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
DEB174432D
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German (de)
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to DEB174432D priority Critical patent/DE741115C/en
Application granted granted Critical
Publication of DE741115C publication Critical patent/DE741115C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00Variable inductances or transformers of the signal type
    • H01F21/02Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/08Variable inductances or transformers of the signal type continuously variable, e.g. variometers by varying the permeability of the core, e.g. by varying magnetic bias

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Electromagnets (AREA)

Description

Anordnung zur Vormagnetisierung von Hochfrequenzeisenkernspulen Es ist in der Hochfrequenztechnik bereits bekannt, Selbstinduktionsspulen mit magnetischem Massekern durch eine Vormagnetisierung zu beeinflussen, um Selbstinduktionsänderungen zu Erzielen. In neuerer Zeit benutzt man dazu vorzugsweise zusätzliche Elektromagnete, in deren Luftspalt die zu beeinflussende Hochfrequenzeisenkernspule eingefügt ist. Ferner sind auch solche Magnetisierungsvorrichtungen bekanntgeworden, bei denen gleichzeitig durch eine einzige magnetische Steuerspule mehrere Hochfrequenzspulen vormagnetisiert werden. Da sich hierbei jedoch die Hochfrequenzwicklungen auf demselben magnetischen Träger befinden, sind sie untereinander gekoppelt. Lediglich die Magnetspule- ist- durch besondere Differentialschaltung hochfrequenzmäßig von den Spulen entkoppelt. Für zahlreiche Anwendungszwecke ist aber die gleichzeitige magnetische Beeinflussung hochfrequenzmäßig vollkommen entkoppelter Massekernspulen erforderlich, wie z. B. bei der gleichzeitigen Abstimmung mehrerer zu verschiedenen Stufen eines Empfängers gehörender Kreise.Arrangement for the premagnetization of high-frequency iron core coils Es is already known in high frequency technology, self-induction coils with magnetic To influence the mass core through a bias, to self-induction changes to achieve. In more recent times it is preferable to use additional electromagnets for this purpose, the high-frequency iron core coil to be influenced is inserted into the air gap. Furthermore, such magnetization devices have become known in which simultaneously several high-frequency coils by a single magnetic control coil be premagnetized. Since here, however, the high-frequency windings on the same Magnetic carriers are located, they are coupled to each other. Only the solenoid is high frequency decoupled from the coils by a special differential circuit. For numerous purposes, however, the simultaneous magnetic influence High-frequency completely decoupled ground core coils required, such as. B. with the simultaneous coordination of several to different levels of a receiver belonging circles.

Die vorliegende Erfindung wird dieser Forderung dadurch gerecht däß mehrere zu verschiedenen Kreisen eines Hochfrequenzgeräts gehörende Hochfrequenzeisenkernspulen oder -spulensätze derart in räumlich voneinander entfernten Teilluftspalten eines gemeinsamen Abstimmungmagneten untergebracht sind, dessen Magnetfeld durch einen regelbaren elektrischen Strom geändert bzw. auf bestimmte Werte eingestellt wird, daß sie hochfrequenzmäßig voneinander entkoppelt sind.The present invention thereby meets this requirement several high-frequency iron core coils belonging to different circles of a high-frequency device or coil sets in this way in spatially separated partial air gaps common voting magnets are housed, whose magnetic field by a adjustable electrical current is changed or set to certain values, that they are decoupled from one another in terms of high frequencies.

Reicht die durch die räumliche Trennung erzielte Entkopplung noch nicht aus oder ist eine Entkopplung der Spulen von anderen elektrostatischen oder elektromagnetischen Feldern notwendig, so kann man die in den Teilluftspalten untergebrachten Massekernsptilen für sich in an sich bekannter Weise durch eine metallische Hülle abschirmen. Diese aus Material möglichst guter Leitfähigkeit zu konstruierende Hülle hat gleichzeitig den Vorteil, Wirbelstromv erluste, die durch Eindringen des Hochfrequenzfeldes in das verhältnismäßig schlecht leitende Eisen entstehen, zu verringern bzw. zu beseitigen.Is the decoupling achieved by the spatial separation still sufficient not off or is a decoupling of the coils from other electrostatic or Electromagnetic fields are necessary, so you can accommodate in the partial air gaps Massekernsptilen per se in a manner known per se by a metallic shell shield. This envelope to be constructed from material with the best possible conductivity at the same time has the advantage of eddy current losses caused by the penetration of the high-frequency field arise in the relatively poorly conductive iron, to reduce or to remove.

Um den Einfluß der Magnetisierung bei jeder Spule- bzw. Spulengruppe getrennt abgleichen zu können, ist vorgesehen, die Spulen mitsamt ihrer Abschirmung im Luftspalt des Magneten entweder zu verschieben oder so schwenkbar anzuordnen, daß sie sich in eine beliebige Richtung zur Kraftlinienrichtung des Magnetfeldes einstellen lassen. Durch genügende elektromagnetische Abschirmung der Spulen läßt es sich dabei unschwer erreichen, daß die Lageveränderung der abgeschirmten Spule zum Magneten keine Änderung der Wirbelstromverluste verursacht. Die Erfindung -ewä hrleistet ntit einfachen Mitteln eine gute Entkopplung der zu verschiedenen Stufen oder Kreisen gehörenden Hochfrequenzeisenkernspulen. Andererseits besteht gegenüber der Verwendung mehrerer getrennt voneinander aufgebauter Magnetisierungsanordnungen, die mit verschiedenen Magneten arbeiten, der große Vorteil, daß die magnetische Beeinflussung sich bei allen beeinflußten Spulen zwangsläufig nach derselben Magnetisierungskurve vollzieht.About the influence of magnetization on each coil or coil group To be able to adjust separately, the coils and their shielding are provided in the air gap of the magnet either to be moved or to be swiveled in such a way that that they are in any direction to the direction of the line of force of the magnetic field have it adjusted. Sufficient electromagnetic shielding of the coils allows it is easy to achieve that the change in position of the shielded coil causes no change in eddy current losses to the magnet. the Invention - using simple means ensures a good decoupling of the various High-frequency iron core coils belonging to stages or circles. On the other hand, there is compared to the use of several magnetization arrangements built separately from one another, which work with different magnets, the great advantage that the magnetic Inevitably influence each other according to the same magnetization curve for all affected coils accomplishes.

In der Abbildung ist ein Ausführungsbeispiel der Erfindung dargestellt. Die Magnetwicllung i umfaßt einen nicht gezeichneten mittleren Magnetkern, an den sich vier Magnetschenkel 2, die an der Wicklung i emporführen, anschließen. Oben geht der mittlere Kern in «er l,-reuzii@eise angeordnete 1lagnetsclienl;el 3 über. Die Massekernspulen q. befinden sich, bei dem gezeichneten Beispiel unabgeschirmta in den vier Luftspalten des 'Magneten.In the figure, an embodiment of the invention is shown. The Magnetwicllung i comprises a central magnetic core, not shown, to the four magnet legs 2, which lead up to the winding i, connect. Above the middle nucleus passes over into a crosswise arrangement of layers 3. The mass core coils q. are, in the example shown, unshielded in the four air gaps of the 'magnet.

Claims (1)

PATENTANSPRÜCHE: i. Anordnung zur Vormagnetisierung von Hochfrequenzeisenkernspulen, dadurch gekennzeichnet, daß mehrere zti verschiedenen Kreisen eines Hochfrequeilzgeräts gehörende Hochfrequenzeisenkernspulen oder -spulensätze derart in räumlich voneinander entfernten Teil-Itiftspalten eines gemeinsamen Abstiminungsmagneten untergebracht sind, dessen Magnetfeld durch einen regelbaren elektrischen Strom geändert bzw. auf bestimmte `'Werte eingestellt wird, daß sie hochfrequenzmäßig voneinander entkoppelt sind. Anordnung nach Anspruch i, dadurch gekennzeichnet, daß die Hochfrequenzspulen einschließlich ihrer magnetischen Kerne durch Gehäuse aus unmagnetischem, elektrisch gut leitendem Metall zusätzlich voneinander und von dem Abstimmungsmagneten abgeschirmt sind. 3. Anordnung nach Anspruch 2, dadurch gekennzeichnet, daß die einzelnen Hochfrequenzspulen einschließlich der hochfrequenzmäßigen Abschirmung zur Abgleichung der magnetischen Beeinflussung verschiebbar im Luftspalt angeordnet sind. .M. Anordnung nach Anspruch 2, dadurch gekennzeichnet, daß die einzelnen Hochfrequenzspulen im Luftspalt mitsamt der hochfrequenzmä ßigen Abschirmung derart schwenkbar angeordnet sind, daß sie sich in eine beliebige Richtung zur Kraftlinienrichtung des llagneteii einstellen lassen. Zur Abgrenzung des Anmeldungsgegenstandes vorn Stand der Technik sind im Erteilungsverfahren in Betracht gezogen worden: deutsche Patentschrift N r. 438 735; amerikanische Patentschrift Nr.1 328797.PATENT CLAIMS: i. Arrangement for premagnetization of high-frequency iron core coils, characterized in that several high-frequency iron core coils or sets of high-frequency iron core coils or sets of high-frequency iron cores belonging to different circles of a high-frequency device are accommodated in spatially separated partial columns of a common separating magnet, the magnetic field of which is changed by a controllable electric current or to specific values is set so that they are decoupled from each other in terms of high frequency. Arrangement according to Claim i, characterized in that the high-frequency coils including their magnetic cores are additionally shielded from one another and from the tuning magnet by housings made of non-magnetic, electrically conductive metal. 3. Arrangement according to claim 2, characterized in that the individual high-frequency coils including the high-frequency shielding for balancing the magnetic influence are arranged displaceably in the air gap. .M. Arrangement according to claim 2, characterized in that the individual high-frequency coils in the air gap together with the high-frequency shielding are pivotably arranged in such a way that they can be adjusted in any direction to the direction of the force line of the positioner. To distinguish the subject matter of the application from the state of the art, the following were considered in the granting procedure: German patent specification No. 438,735; American Patent No. 1 328797.
DEB174432D 1936-06-10 1936-06-10 Arrangement for the pre-magnetization of high-frequency iron core coils Expired DE741115C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB174432D DE741115C (en) 1936-06-10 1936-06-10 Arrangement for the pre-magnetization of high-frequency iron core coils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB174432D DE741115C (en) 1936-06-10 1936-06-10 Arrangement for the pre-magnetization of high-frequency iron core coils

Publications (1)

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DE741115C true DE741115C (en) 1943-11-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988716A (en) * 1957-10-14 1961-06-13 Radio Condenser Co Tuner
DE2935614A1 (en) * 1979-09-04 1981-03-12 Prof. Dr.-Ing. Gerhard 8012 Ottobrunn Flachenecker Tuning device for capacity diodes or coil in receiver - uses identical elements for each tunable diode of coil in resonance circuits and fixed connection between their reactances

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1328797A (en) * 1915-11-26 1920-01-20 Gen Electric Means for controlling alternating currents
DE438735C (en) * 1922-03-14 1926-12-22 Lorenz A G C Device for controlling the power of high-frequency systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1328797A (en) * 1915-11-26 1920-01-20 Gen Electric Means for controlling alternating currents
DE438735C (en) * 1922-03-14 1926-12-22 Lorenz A G C Device for controlling the power of high-frequency systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988716A (en) * 1957-10-14 1961-06-13 Radio Condenser Co Tuner
DE2935614A1 (en) * 1979-09-04 1981-03-12 Prof. Dr.-Ing. Gerhard 8012 Ottobrunn Flachenecker Tuning device for capacity diodes or coil in receiver - uses identical elements for each tunable diode of coil in resonance circuits and fixed connection between their reactances

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