DEP0051936DA - Device for tuning oscillation circuits at ultra-high frequencies - Google Patents
Device for tuning oscillation circuits at ultra-high frequenciesInfo
- Publication number
- DEP0051936DA DEP0051936DA DEP0051936DA DE P0051936D A DEP0051936D A DE P0051936DA DE P0051936D A DEP0051936D A DE P0051936DA
- Authority
- DE
- Germany
- Prior art keywords
- ultra
- high frequencies
- oscillation circuits
- wire
- 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.)
- Expired
Links
- 230000010355 oscillation Effects 0.000 title claims description 3
- 239000004020 conductor Substances 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Description
Es sind schon Abstimmvorrichtungen für Schwingungskreise bei ultra-hohen Frequenzen vorgeschlagen worden, die aus zwei in sich selbst zurücklaufenden Leitern aus Dreht bestehen und die sich besonders für Frequenzen zwischen 120 und 20 MHz eignen sollen. Die Schleifkontakte liegen bei dieser Vorrichtung dem Leiter aussen oder innen radial an. Man bedarf hierbei besonderer Haltevorrichtungen, um das jeweils eine Abstimmeinheit bildende Leiterpaar in der richtigen Lage zu halten.There have already been proposed tuning devices for oscillation circuits at ultra-high frequencies, which consist of two self-recurring conductors made of twist and which are said to be particularly suitable for frequencies between 120 and 20 MHz. In this device, the sliding contacts lie radially on the outside or inside of the conductor. This requires special holding devices in order to hold the pair of conductors, which each form a tuning unit, in the correct position.
Gemäß der vorliegenden Erfindung wird dadurch eine besonders einfache Gestaltung solcher Drahtringe ermöglicht, dass die Schleifer die freitragend ausgebildeten Ringe teilweise umgreifen und so als ein beweglicher Abstandhalter zwischen den beiden Drahtringen einer Einheit wirken. Es können auf diese Weise besonders billige und einfache Abstimmelemente mit ausreichender Genauigkeit in grossen Mengen, beispielsweise für Rundfunkempfänger, hergestellt werden.According to the present invention, a particularly simple design of such wire rings is made possible in that the grinders partially encompass the cantilever rings and thus act as a movable spacer between the two wire rings of a unit. In this way, particularly cheap and simple tuning elements with sufficient accuracy can be produced in large quantities, for example for radio receivers.
Die Zeichnung zeigt beispielsweise schematisch eine Vorrichtung der Erfindung teilweise im Schnitt.The drawing shows, for example schematically, a device of the invention partially in section.
In dieser Zeichnung ist:In this drawing is:
Figur 1 ein Längsschnitt durch eine Vorrichtung gemäß der Erfindung.Figure 1 is a longitudinal section through a device according to the invention.
Figur 2 eine Draufsicht.Figure 2 is a plan view.
Figur 3 ein Schnitt gemäß A-A der Figur 1.FIG. 3 shows a section according to A-A of FIG. 1.
2 und 3 sind zwei Drahtringe, die lediglich mit ihren Enden 4 und 5 an der Fussplatte 6 befestigt, sonst aber freitragend ausgebildet sind. Der mit Hilfe der Drehachse 7 verstellbare Schleifer 8 umfasst mit seinen beiden Enden 9 und 10 je einen der beiden Drahtleiter 2 und 3. Die Drahtleiter bedürfen keinerlei Abstandhalter, vielmehr wirkt der Schleifer an jeder Stelle seines Laufes als solcher. Um Kratzen zu vermeiden, sind die Federenden an den dem Drahtleiter zugekehrten Flächen oval durchgedrückt.2 and 3 are two wire rings which are only attached to the footplate 6 with their ends 4 and 5, but are otherwise designed to be cantilevered. The adjustable with the help of the axis of rotation 7 grinder 8 comprises with its two ends 9 and 10 each one of the two wire conductors 2 and 3. The wire conductors do not require any spacers, rather the grinder acts as such at every point of its course. In order to avoid scratching, the spring ends are pressed through oval on the surfaces facing the wire conductor.
Claims (3)
Family
ID=
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