DE577454C - Impedance for high frequency circuits - Google Patents
Impedance for high frequency circuitsInfo
- Publication number
- DE577454C DE577454C DEM119078D DEM0119078D DE577454C DE 577454 C DE577454 C DE 577454C DE M119078 D DEM119078 D DE M119078D DE M0119078 D DEM0119078 D DE M0119078D DE 577454 C DE577454 C DE 577454C
- Authority
- DE
- Germany
- Prior art keywords
- increase
- impedance
- temperature
- compensated
- substances
- 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
- 239000000126 substance Substances 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims 2
- 230000006698 induction Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Description
Impedanz für Hochfrequenzkreise Die Erfindung bezieht sich auf Selbstinduktionen und Kapazitäten für elektrische Schwingungskreise, die vom Temperaturgang in ihren Impedanzwerten unabhängig sind.Impedance for high frequency circuits The invention relates to self inductions and capacities for electrical oscillating circuits that depend on the temperature profile in their Impedance values are independent.
Es sind bereits Generatoranordnungen bekanntgeworden, bei welchen zwecks Aufrechterhaltung der Frequenz der erzeugten Schwingungen bei Temperaturschwankungen die Anwendung von temperaturkompensierten Impedanzen vorgesehen ist.There are already generator arrangements become known in which in order to maintain the frequency of the generated vibrations in the event of temperature fluctuations the use of temperature-compensated impedances is provided.
So ist beispielsweise eine temperaturkonstante Kapazität beschrieben worden, bei welcher unter Anwendung sich geeignet ausdehnender Materialien eine Regelung des Abstandes des Rotorpaketes gegenüber dem Statorpaket des Kondensators bewirkt sind; derart, daß leine Temperaturkompensation der Impedanzschwankungen erfolgt.For example, a temperature-constant capacitance is described in which, using appropriately expanding materials, a Regulation of the distance between the rotor core and the stator core of the capacitor are effected; such that no temperature compensation for impedance fluctuations he follows.
Erfindungsgemäß sind die Impedanzen für die Hochfreduenzkreise aus derartigen Stoffen hergestellt, daß die bei Temperaturschwankungen in einer Dimension sich auswirkenden Längenänderungen durch die m einer dazu senkrechten Dimension auftretenden linearen Änderungen kompensiert werden.According to the invention, the impedances for the high-frequency circuits are off such substances produced that the temperature fluctuations in one dimension changes in length that have an effect due to the m of a dimension perpendicular to it occurring linear changes are compensated.
Im Falle von Kondensatoren sind die Stoffe, aus denen die Platten hergestellt sind, so gewählt, daß die Vergrößerung der Kapazität, die durch die Vergrößerung der Plattenfläche bei Temperaturzunahme bedingt ist, durch eine Vergrößerung des Plattenabstandes ausgeglichen wird. @ Es können die Kondensatoren als koaxiale Zylinder ausgebildet sein und der äußere Zylinder aus einem Stoff bestehen, dessenWärmeausdehnungskoeffizient größer ist als der des Stoffes des inneren Zylinders. Bei einer solchen Konstruktion wird die Wirkung der Vergrößerung der Oberflächen der Belegungen durch den vergrößerten Abstand bei Temperaturzunahme ausgeglichen.In the case of capacitors, these are the substances that make up the plates are made, chosen so that the increase in capacity caused by the Enlargement of the plate surface with an increase in temperature is caused by an enlargement the plate spacing is compensated. @ It can make the capacitors as coaxial Cylinder be formed and the outer cylinder consist of a substance whose coefficient of thermal expansion is larger than that of the fabric of the inner cylinder. With such a construction the effect of enlarging the surfaces of the coverings is increased by the Distance compensated for when the temperature rises.
Man erkennt, daß, wenn' die Belegungen aus denselben Stoffen bestehen würden, die Kapazität mit zunehmender Temperatur zunehmen würde, da das Verhältnis der Durchmesser nahezu konstant bleiben, ihre Längen hingegen wachsen würden.It can be seen that when 'the coatings consist of the same substances the capacity would increase with increasing temperature, since the ratio the diameter would remain almost constant, but their lengths would increase.
Eine entsprechende Ausführungsform ist auch für Induktionsspulen möglich. Es kann die Spule m einer oder mehreren Lagen um einen zylindrischen oder polygonalen Spulenkörper gewickelt sein. Die Anordnung ist derart, däß die proportionale axiale Ausdehnung die radiale Ausdehnung übersteigt. Eine erfindungsgemäße Selbstinduktion kann aus einer Anzahl scheibenförmiger Spulen bestehen, die parallel oder in Reihe geschaltet angeordnet sind. ,A corresponding embodiment is also possible for induction coils. The coil can have one or more layers around a cylindrical or polygonal one Be wound bobbin. The arrangement is such that the proportional axial Expansion exceeds the radial expansion. A self-induction according to the invention can consist of a number of disc-shaped coils, which are parallel or in series are arranged switched. ,
Claims (6)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB577454X | 1929-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE577454C true DE577454C (en) | 1933-05-31 |
Family
ID=10479928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM119078D Expired DE577454C (en) | 1929-05-23 | 1930-05-16 | Impedance for high frequency circuits |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE577454C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1068370B (en) * | 1959-11-05 | Messwandler-Bau G.m.b.H., Bamberg | Error-compensated capacitive voltage converter with grounded divider capacitor |
-
1930
- 1930-05-16 DE DEM119078D patent/DE577454C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1068370B (en) * | 1959-11-05 | Messwandler-Bau G.m.b.H., Bamberg | Error-compensated capacitive voltage converter with grounded divider capacitor |
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