DE112503C - - Google Patents
Info
- Publication number
- DE112503C DE112503C DENDAT112503D DE112503DA DE112503C DE 112503 C DE112503 C DE 112503C DE NDAT112503 D DENDAT112503 D DE NDAT112503D DE 112503D A DE112503D A DE 112503DA DE 112503 C DE112503 C DE 112503C
- Authority
- DE
- Germany
- Prior art keywords
- coil
- iron core
- secondary coil
- measuring device
- movable
- 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.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
- G01R5/20—Induction instruments, e.g. Ferraris instruments
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Den Gegenstand vorliegenden Patentes bildet ein Mefsgeräth für elektrische Ströme von wechselnder Richtung und für solche pulsirender Intensität bei gleicher Richtung, welches auf dem bekannten Principe der sogen, inductiven Abstofsung beruht.The subject of the present patent is a measuring device for electrical currents of alternating direction and for such pulsating intensity with the same direction, which is based on the well-known principle of the so-called inductive repulsion.
Dieses Mefsgeräth, welches durch Fig. 1 und 2 in zwei verschiedenen Ausführungsformen dargestellt wird, besteht aus einer primären Spule B und einer secundären, kurz ■ geschlossenen Spule C, welche beide durch einen gemeinsamen Eisenkern A verkettet sind. Die secundäre Spule C ist um eine Achse D drehbar, so dafs sie den auf sie einwirkenden Kräften frei folgen kann.This measuring device, which is shown in two different embodiments by FIGS. 1 and 2, consists of a primary coil B and a secondary, short-circuited coil C, both of which are linked by a common iron core A. The secondary coil C can be rotated about an axis D so that it can freely follow the forces acting on it.
Der beiden Spulen gemeinsame Eisenkern ist nun derartig ausgebildet, dafs sich die secundäre Spule um denselben bis zu einem Ausschlagwinkel von mindestens 1200 frei zu drehen vermag. Ein besonderer Vortheil wird dadurch erreicht, dafs der Eisenkern in sich geschlossen ist, was zur Folge hat, dafs die zu einer gewissen Magnetisirungsstärke nothwendigen Amperewindungen sehr klein sind und aufserdem infolge hoher Selbstinduction eine starke Drosselung auftrittt, welche erlaubt, Spannungen von solcher Höhe direct anzuwenden, für welche sonst bei offenem Eisenkerne der Wickelungsraum unverhältnifsmäfsig grofs werden würde oder ein entsprechend bemessener Vorschaltwiderstand nöthig würde.The two coils common iron core is now formed in such a way, the secondary coil DAF by the same up to a deflection angle of at least 120 0 able to rotate freely. A special advantage is achieved by the fact that the iron core is self-contained, which has the consequence that the ampere-turns necessary for a certain strength of magnetization are very small and, in addition, due to high self-induction, a strong throttling occurs, which allows voltages of such magnitude to be applied directly for which otherwise the winding space would become disproportionately large with an open iron core or a correspondingly dimensioned series resistor would be necessary.
Die Wirkung des Mefsgeräthes ist folgende: Der zu messende Wechselstrom wird durch Spule B geschickt; derselbe erzeugt in A einen Kraftlinienflufs von wechselnder Richtung, während dieser wieder in der kurz geschlossenen Secundärspule einen Strom wechselnder Richtung erzeugt, dessen Richtung in jedem Zeitmomente der Richtung des primären Stromes in Spule B entgegengesetzt ist. Da sich entgegengesetzt gerichtete Ströme abstofsen bezw. sich in eine derartig gegenseitige Lagerung zu bringen suchen, dafs sie gleiche Richtung besitzen, so wird sich die Spule C um D drehen, und zwar ist der Drehungswinkel der Spule annähernd proportional der Gröfse des in der Spule B verlaufenden Wechselstromes. Auf der Achse D sitzt ein Zeiger, dessen Ausschlag ein Mafs für die Gröfse des zu messenden Wechselstromes ist. Als Gegenkraft kann die Schwere, eine Torsionsfeder oder dergl. zur Anwendung kommen.The effect of the measuring device is as follows: The alternating current to be measured is sent through coil B ; in A it generates a flux of lines of force of alternating direction, while this again generates a current of alternating direction in the short-circuited secondary coil, the direction of which is opposite to the direction of the primary current in coil B at every moment of time. Since opposing currents abstofsen respectively. try to position each other in such a way that they have the same direction, then the coil C will rotate about D , and the angle of rotation of the coil is approximately proportional to the magnitude of the alternating current running in the coil B. On the axis D sits a pointer, the deflection of which is a measure of the magnitude of the alternating current to be measured. Gravity, a torsion spring or the like can be used as a counterforce.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE112503C true DE112503C (en) |
Family
ID=382157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT112503D Active DE112503C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE112503C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1089881B (en) * | 1957-01-04 | 1960-09-29 | Harry Thalheim | Induction measuring device |
-
0
- DE DENDAT112503D patent/DE112503C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1089881B (en) * | 1957-01-04 | 1960-09-29 | Harry Thalheim | Induction measuring device |
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