DE890826C - Grinding variometer with high setting accuracy with extremely small variation - Google Patents

Grinding variometer with high setting accuracy with extremely small variation

Info

Publication number
DE890826C
DE890826C DEL4297D DEL0004297D DE890826C DE 890826 C DE890826 C DE 890826C DE L4297 D DEL4297 D DE L4297D DE L0004297 D DEL0004297 D DE L0004297D DE 890826 C DE890826 C DE 890826C
Authority
DE
Germany
Prior art keywords
variometer
grinding
extremely small
small variation
coil
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
DEL4297D
Other languages
German (de)
Inventor
Herbert Okomonski
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.)
Alcatel Lucent Deutschland AG
Original Assignee
Standard Elektrik Lorenz AG
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 Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
Priority to DEL4297D priority Critical patent/DE890826C/en
Priority to FR891323D priority patent/FR891323A/en
Application granted granted Critical
Publication of DE890826C publication Critical patent/DE890826C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00General layout or general methods of operation of complete plants
    • F01K13/02Controlling, e.g. stopping or starting
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00Variable inductances or transformers of the signal type
    • H01F21/005Inductances without magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Coils Or Transformers For Communication (AREA)

Description

Die üblichen und bekannten Sch.leifvariometer besitzen eine mit steigendem Drehwinkel und damit größer werdender Spulenlänge steil ansteigende Selbstinduktionskurve. Zwangsläufig ergibt sich daraus eine große Variation. Um eine -gute Reproduzierbarkeit eines vorbestimmten Wertes. zu erlangen, ist es notwendig, den auf die Drafhtl.ängeneinheit oder analog auf den, Drehwinkel' entfallenden Selbstinduktionsanteil klein zu halten.. Ist der Bereich an sich klein, so ergibt sich damit,' auch zwangsläufig ein. kleiner Gesamtdrehwinkel. Schwingkreise im UKW-Bereich weisen nun in der Regel eine Kreisselbstinduktion auf, die mit einer Spule vonetwa i bis 3 Windungen erreicht wird. Der Frequenzbereich kann somit praktisch nur mit einem Drehwinkel von, wenigen Graden bis maximal etwa 72o° bestrichen werden.The usual and well-known loop variometers have a with increasing Angle of rotation and thus increasing coil length steeply increasing self-induction curve. There is inevitably a great variation. Good reproducibility of a predetermined value. it is necessary to use the Drafhtl.length unit or to keep the self-induction component corresponding to the 'angle of rotation' small. If the area is small in itself, 'also inevitably results in a. smaller Total angle of rotation. Oscillating circuits in the VHF range now usually have a circular self-induction which is achieved with a coil of about i to 3 turns. The frequency range can thus practically only with an angle of rotation of a few degrees up to a maximum of about 72o ° can be coated.

Die Erfindung betrifft ein Schleifvariometer, insbesondere für Ultrakurzwellen, dessen Variation bei vielfach größerem Betätigungswinkel extrem klein gehalten ist. Erfindungsgemäß wird vorgeschlagen, zwischen zwei Stromabnehmern einen: Variometerspu@lenabschnitt derart anzuordnen:, daß sich: beim Drehen der Windungsdurchmesser und damit die an den. beiden: Anschlüssen auftretende Selbstinduktion stetig, aber verhältnismäßig sehr langsam ändert. Der grundsätzliche Aufbau eines derartigen: Variometers ist aus der Abb. i ersichtlich. Die beiden. Stromabnehmer a. und b liegen, um einen frequenzbestimmenden. Winkel zueinander versetzt an der Variometerwicklung c an. Da die Variometerspule c kegelig ausgebildet ist, ändert sich beim Drehen kontinuierlich der Windungsdurchmesser des zwischen dien Stromabnehmern, a und b liegenden Spulenabschnittes und damit der entsprechende Selbstinduktionswert. Der Variometerbereich kann beliebig gewählt werden. Er ist von. dem Verhältnis des kleinsten Windungsdurchmessers zum größten abhängig. Die Spanne zwischen dem Anfangs- und Endwert kann über verschieden viel Windungen: erreicht werden. Bei gleichbleibender Windungssteigerung ergeben sich dann. lediglich andere Konizitäten des Kegelkörpers. Durch Einziehen bzw.. Ausbauchen. der Kegelmante@l$äche besteht darüber hinaus die Möglichkeit,- der Induktionskurve eine gewünschte Tendenz zu geben.The invention relates to a grinding variometer, in particular for ultra-short waves, the variation of which is kept extremely small with a much larger operating angle. According to the invention it is proposed to arrange a: Variometerpu @ lenabschnitt between two current collectors in such a way that: when turning the winding diameter and thus the diameter of the windings. both: connections occurring self-induction changes steadily, but relatively very slowly. The basic structure of such a variometer is shown in Fig. I. The two. Pantograph a. and b lie to a frequency-determining. Angle offset to one another on the variometer winding c. Since the variometer coil c is conical, the winding diameter of the coil section between the current collectors, a and b changes continuously when it is turned, and thus the corresponding self-induction value. The variometer range can be selected as desired. He is from. the ratio of the smallest coil diameter to the largest dependent. The span between the start and end value can be achieved over a different number of turns. With a constant increase in the number of turns, the result is then. only other conicities of the cone body. By pulling in or bulging out. The surface of the cone also offers the possibility of - giving the induction curve a desired tendency.

Die kegelige Form der in der Abb. i beschriebenen A-n _rdnüng läßt sich auch abwandeln, z. B. derart, daß die Wicklung. in einer Ebene angeordnet ist. Es ergibt sich dann eine Ausführung; wie sie im Prinzip in der Abb. 2 dargestellt ist. Die beiden Stromabnehmer sind wieder mit a und b und die Variometerwicklung mit c bezeichnet. Eine Charakteränderung der Selbstinduktionskurve läßt sich auch hier erreichen, z. B. durch kontinuierlichen Übergang von einer bestimmten Anfangssteigung auf eine andere, davon abweichende Endsteigung.The conical shape of the design described in Fig. I can also be modified, e.g. B. such that the winding. is arranged in one plane. An execution then results; as shown in principle in Fig. 2. The two current collectors are again marked with a and b and the variometer winding with c. A change in the character of the self-induction curve can also be achieved here, e.g. B. by continuous transition from a certain initial slope to another, different final slope.

Claims (4)

PATENTANSPRÜCHE: i. Sch:leifvariometer mit großer Einstellgenauigkeit bei extrem kleiner Variation, insbesondere für Ultrakurzwel-len., dadurch gekennzeichnet, daß zwischen zwei Stromabnehmern ein Variometerspulenabschnitt derart angeordnet ist, daß sich beim Drehen der Windungsdurchmesser und als Funktion. davon: die an den beiden. Anschlüssen auftretende Selbstinduktion stetig, aber verhältnismäßig sehr langsam ändern. PATENT CLAIMS: i. Sch: leifvariometer with great setting accuracy with extremely small variation, especially for ultra-short waves., characterized that a variometer coil section is arranged between two current collectors is that when turning the coil diameter and as a function. of which: the on the two. Connections occurring self-induction steady but proportionate change very slowly. 2. Sch.leifvariometer nach - Anspruch i, dadurch gekennzeichnet, daß der -zu bestreichende Bereich durch Ändern, des Verhältnisses. Windungsanfangsdurchmesser zu Windungsenddurchmesser der verwendeten Variometerspule heeinflußt wird. 2. Sch.leifvariometer according to - claim i, characterized in that that the area to be covered by changing the ratio. Start winding diameter is influenced by the end winding diameter of the variometer coil used. 3. Schleifvariometer nach Anspruch i und 2, dadurch gekennzeichnet, daß die An:fan.gsinduktivität durch verschiedene Wahl des Wicklungsabschnittes zwischen denbeiden: Stromabnehmern beliebig veränderbar ist. .3. Grinding variometer according to claims 1 and 2, characterized in that the fan inductance is through Different choice of winding section between the two: Any pantograph is changeable. . 4. Schleifvariometer nach: Anspruch i bis 3, dadurch gekennzeichnet, daß die Präzision: der Reproduzierbarkeit eines gewünschten, Wertes durch die Zwischenschaltung einer beliebig großen Windungszahl zwischen die verschieden große Anfangs- und, Endwindung reguliert wird.4. grinding variometer according to: claim i to 3, characterized in that that the precision: the reproducibility of a desired value through the interposition an arbitrarily large number of turns between the differently large initial and, End turn is regulated.
DEL4297D 1942-03-19 1942-03-19 Grinding variometer with high setting accuracy with extremely small variation Expired DE890826C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEL4297D DE890826C (en) 1942-03-19 1942-03-19 Grinding variometer with high setting accuracy with extremely small variation
FR891323D FR891323A (en) 1942-03-19 1943-02-16 Slider variometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL4297D DE890826C (en) 1942-03-19 1942-03-19 Grinding variometer with high setting accuracy with extremely small variation

Publications (1)

Publication Number Publication Date
DE890826C true DE890826C (en) 1953-09-21

Family

ID=7256469

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL4297D Expired DE890826C (en) 1942-03-19 1942-03-19 Grinding variometer with high setting accuracy with extremely small variation

Country Status (2)

Country Link
DE (1) DE890826C (en)
FR (1) FR891323A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002825B (en) * 1952-08-21 1957-02-21 Aladdin Ind Inc Tuning device for high frequency with adjustable self-induction
DE1036339B (en) * 1954-06-08 1958-08-14 Aladdin Ind Inc High frequency tuning element for large areas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002825B (en) * 1952-08-21 1957-02-21 Aladdin Ind Inc Tuning device for high frequency with adjustable self-induction
DE1036339B (en) * 1954-06-08 1958-08-14 Aladdin Ind Inc High frequency tuning element for large areas

Also Published As

Publication number Publication date
FR891323A (en) 1944-03-03

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