DE592694C - Self-induction, the dependence of which on the temperature can be adjusted as desired or regulated as desired or also completely or approximately canceled - Google Patents
Self-induction, the dependence of which on the temperature can be adjusted as desired or regulated as desired or also completely or approximately canceledInfo
- Publication number
- DE592694C DE592694C DET41214D DET0041214D DE592694C DE 592694 C DE592694 C DE 592694C DE T41214 D DET41214 D DE T41214D DE T0041214 D DET0041214 D DE T0041214D DE 592694 C DE592694 C DE 592694C
- Authority
- DE
- Germany
- Prior art keywords
- self
- coil
- induction
- temperature
- cylinder
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/008—Details of transformers or inductances, in general with temperature compensation
Description
Selbstinduktion, deren Abhängigkeit von der Temperatur beliebig einstellbar ist bzw. beliebig geregelt oder auch ganz oder angenähert aufgehoben werden kann Die Erfindung besteht darin, daß die Selbstinduktionsspule derart von einem anderen Körper bzw. einer Kombination von Körpern aus Isolierstoff von außen begrenzt wird, daß bei Temperaturänderungen der Durchmesser der Spule nur entsprechend dem Ausdehnungskoeffizienten des begrenzenden Körpers bzw. einer Kombination von Körpern, also unabhängig vom Wärmeausdehnungskoeffizienten des Spulenmaterials, die axiale Länge der Selbstinduktionsspule dagegen in Abhängigkeit von dem letzterwähnten Koeffizienten sich ändern kann.Self-induction, the dependence of which on the temperature can be adjusted as required is or can be regulated in any way or completely or approximately canceled The invention consists in that the self-induction coil is so different from another Body or a combination of bodies made of insulating material is limited from the outside, that in the event of temperature changes, the diameter of the coil only corresponds to the expansion coefficient of the delimiting body or a combination of bodies, i.e. independent of the Coefficient of thermal expansion of the coil material, the axial length of the self-induction coil on the other hand, it may change depending on the latter coefficient.
In, der Abb. i ist ein Ausführungsbeispiel dargestellt.In, Fig. I, an embodiment is shown.
Hier ist i ein Zylinder, beispielsweise aus Quarz, dessen Ausdehnungskoeffizient sehr gering ist (etwa "/so von dem des Kupfers), und 2 eine stark federnde Kupferspirale, deren Außendurchmesser durch Verdrehung der Spirale verkleinert werden kann.Here i is a cylinder, for example made of quartz, its coefficient of expansion is very small (about 1/2 of that of copper), and 2 a strongly resilient copper spiral, the outer diameter of which can be reduced by turning the spiral.
Im freien Zustande ist der äußere Durchmesser der Spule etwas größer als der innere Durchmesser des Quarzzylinders. Dreht man die Spirale etwas zusammen, so kann man sie in den Zylinder hineinzwingen, so daß sie sich an die innere Mantelfläche des Zylinders anpreßt. Somit ist der Außendurchmesser .der Spirale stets durch den Innendurchmesser des Quarzzylinders gegeben. Die axiale Länge der Spirale dagegen. kann sich je nach der Temperatur derselben frei einstellen.In the free state the outer diameter of the coil is somewhat larger than the inner diameter of the quartz cylinder. If you twist the spiral a little, so you can force them into the cylinder so that they are attached to the inner surface of the cylinder. Thus, the outer diameter of the spiral is always through the Given the inner diameter of the quartz cylinder. The axial length of the spiral on the other hand. can adjust freely depending on the temperature of the same.
Liegt das Verhältnis vom Durchmesser D der Spirale zum Umfang U ihrer Wicklung zwischen i und 3, so ist ihre Selbstinduktion angenähert (s. Rein - W i r t z, Radiotelegraphisches Praktikum 1924 3. Aufl., S. z28), worin N = gesamte Windungszahl, D = mittlerer Durchmesser, U = 2 # (i -)- b), wenn i bzw. b die Länge bzw. die Dicke der Spule in cm bedeutet.If the ratio of the diameter D of the spiral to the circumference U of its winding is between i and 3, then its self-induction is approximated (see Rein - Wirtz, Radiotelegraphisches Praktikum 1924 3rd edition, p. z28), where N = total number of turns, D = mean diameter, U = 2 # (i -) - b), if i or b die Means the length or the thickness of the coil in cm.
Und da D = Do (i -E- «,t), U = Utr
(1 -E- alt) (worin a,. den Wärmeausdehnungskoeffizientern von Quarz und a2
den Wärmeausdehnungskoeffizienten von Kupfer und D, bzw. U, die entsprechenden Werte
von D bzw. U bei t = o ° C bedeuten), so kann man auch schreiben
(worin Lo der Wert der Selbstinduktion bei
t = o ist) oder auch
(da a1 sehr klein ist gegenüber i)
Will man nun die Selbstinduktion einstellbar machen bzw. regeln, so kann man nur einen beliebig zu wählenden Teil der Spule in den Quarzzylinder einzwängen. Durch Verschieben des Zylinders kann man dann die Abhängigkeit der Selbstinduktion von der Temperatur beliebig regeln (s. Abb. 2).If one now wants to make or regulate the self-induction, so you can only squeeze an arbitrarily selected part of the coil into the quartz cylinder. By moving the cylinder one can then see the dependence of the self-induction regulate the temperature as required (see Fig. 2).
bracht man den Zylinder statt aus Quarz aus Glas, so wird die Wirkung des Zylinders geringer, und zwar entsprechend dem größeren Ausdehnungskoeffizienten von Glas.If the cylinder is made of glass instead of quartz, the effect is achieved of the cylinder is lower, in accordance with the greater coefficient of expansion of glass.
In manchen Fällen kann es erwünscht sein, daß die Abhängigkeit der Größe L von der Temperatur künstlich vergrößert wird, z. B. wenn die Selbstinduktion in Parallelschaltung mit einer Kapazität die Welle eines Senders bestimmt und die Kapazität so aufgebaut ist, daß ihre Größe sehr stark mit der Temperatur abnimmt.. In diesem Fall wird man den Zyander i aus einem Material machen, dessen liusdehnungskoeffizient größer ist als der von Kupfer, z. B. Hartgummi.In some cases it may be desirable to have the dependency on the Size L is artificially increased by the temperature, e.g. B. when the self-induction in parallel with a capacity determines the wave of a transmitter and the Capacitance is constructed in such a way that its size decreases very sharply with temperature. In this case you will make the cyan i from a material whose linear expansion coefficient is greater than that of copper, e.g. B. hard rubber.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET41214D DE592694C (en) | 1932-08-16 | 1932-08-16 | Self-induction, the dependence of which on the temperature can be adjusted as desired or regulated as desired or also completely or approximately canceled |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET41214D DE592694C (en) | 1932-08-16 | 1932-08-16 | Self-induction, the dependence of which on the temperature can be adjusted as desired or regulated as desired or also completely or approximately canceled |
Publications (1)
Publication Number | Publication Date |
---|---|
DE592694C true DE592694C (en) | 1934-02-13 |
Family
ID=7560974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET41214D Expired DE592694C (en) | 1932-08-16 | 1932-08-16 | Self-induction, the dependence of which on the temperature can be adjusted as desired or regulated as desired or also completely or approximately canceled |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE592694C (en) |
-
1932
- 1932-08-16 DE DET41214D patent/DE592694C/en not_active Expired
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