DE1822174U - CURRENT METER. - Google Patents
CURRENT METER.Info
- Publication number
- DE1822174U DE1822174U DES27203U DES0027203U DE1822174U DE 1822174 U DE1822174 U DE 1822174U DE S27203 U DES27203 U DE S27203U DE S0027203 U DES0027203 U DE S0027203U DE 1822174 U DE1822174 U DE 1822174U
- Authority
- DE
- Germany
- Prior art keywords
- voltage generator
- hall voltage
- magnetic
- magnetic circuit
- measuring
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
- G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
- G01R15/185—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core with compensation or feedback windings or interacting coils, e.g. 0-flux sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
- G01R15/207—Constructional details independent of the type of device used
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
Strommeßgerät Die Neuerung bezieht sich auf ein Meßgerät, mit dem kleine Ströme, insbesondere schwache Gleichströme gemessen werden können. Ihr liegt die Aufgabe zugrunde, nicht nur Ströme zu messen, welche an eine feste Leiterbahn gebunden sind, sondern auch Konvektionsströme zu erfassen, wie dies z. B. der Fall ist, wenn aus einem Teilchenbeschleuniger Korpuskularstrahlen austreten. Dementsprechend betrifft die Neuerung auch die Messung der Ströme von Protonen, Elektronen oder auch geladenen Mesonen.Ammeter The innovation relates to a measuring device with which small currents, especially weak direct currents, can be measured. Her lies the task is not only to measure currents which are sent to a fixed conductor track are bound, but also to capture convection currents, as z. B. the case is when corpuscular beams emerge from a particle accelerator. Accordingly The innovation also affects the measurement of the currents of protons, electrons or also charged mesons.
Es wird von einer indirekten erfassung des Stromwertes durch Messung eines von ihm verursachten magnetischen Feldes Gebrauch gemacht. Es ist an sich bereits bekannt, Gleichströme hohen Stromwertes auf diese Weise zu erfassen, wobei das magnetische Feld mit Hilfe eines Hallspannungserzeugers gemessen wird, der in einem magnetischen Kreis aus hochpermeablem Material angeordnet ist.It is based on an indirect acquisition of the current value through measurement made use of a magnetic field caused by it. It is in itself already known to detect high current value direct currents in this way, wherein the magnetic field is measured with the help of a Hall voltage generator, which in a magnetic circuit made of highly permeable material is arranged.
Die Neuerung schlägt vor, hierbei den magnetischen Kreis so auszubilden, daß er den zu untersuchenden Strompfad mehrfach, insbesondere vielfach umschlingt. Der magnetische Kreis kann durch ein Band oder durch einen Draht aus hochpermeablem Eisen oder einem anderen günstigen magnetisierbaren Werkstoff gebildet sein. Durch mehrfache, insbesondere vielfache Umschlingung des Strompfades gelingt es, die Luftspaltinduktion wesentlich zu verstärken. Um eine möglichst hohe Signalspannung zu erhalten, ist es weiterhin zweckmäßig, den Hallspannungserzeuger in Form eines Hallplättchens zwischen Ferritscheiben einzubetten, so daß man Luftspaltbreiten außerordentlich geringer Höhe erreichen kann. Auf diese Weise können effektive Luftspalte unter 5. u, insbesondere von etwa 1 ; U erreicht werden, vor allem dann, wenn man dazu übergeht, aufgedampfte Halbleiterschichten zu verwenden. Enge Luftspalte können auch durch Vorschliff einer halbleitenden Kristallschicht mit nachfolgender elektrolytischer Abtragung gebildet werden.The innovation suggests designing the magnetic circuit in such a way that that it loops around the current path to be examined several times, in particular many times. The magnetic circuit can be made of high permeability by means of a tape or a wire Iron or another cheap magnetizable material can be formed. By multiple, in particular multiple wrapping of the current path succeeds in significantly increasing the air gap induction. To be as high as possible To obtain signal voltage, it is also useful to use the Hall voltage generator in the form of a Hall plate between ferrite disks, so that one air gap widths can reach extremely low height. This way you can create effective air gaps below 5. u, in particular from about 1; U can be achieved, especially when one goes over to the use of vapor-deposited semiconductor layers. Narrow air gaps can also by pre-grinding a semiconducting crystal layer with a subsequent electrolytic one Ablation can be formed.
An Hand der Zeichnung soll die Neuerung näher erläutert werden.The innovation is to be explained in more detail using the drawing.
Die Figur zeigt ein Ausführungsbeispiel in stark vereinfachter, zum Teil schematischer Darstellung. Der zu untersuchende Strompfad ist durch die mit Pfeilen versehene Linie 1 versinnbildlicht, wobei es sich um einen Protonenstrahl handeln kann. Diesen Strompfad umschlingend ist ein magnetischer Kreis 2 vorgesehen, der durch eine Wicklung aus hochpermeablem Eisen 3 gebildet ist. Der Eisenkreis kann band-oder drahtförmig gestaltet sein. Im Luftspalt 4 befindet sich, zweckmäßig zwischen Ferritplatten eingebettet, ein Hallplättchen 5 zur Erzeugung der Hallspannung.The figure shows an embodiment in a greatly simplified, for Part schematic representation. The current path to be examined is through the with Line 1 marked with arrows symbolizes, which is a proton beam can act. A magnetic circuit 2 is provided around this current path, which is formed by a winding made of highly permeable iron 3. The iron circle can be designed in the form of a band or wire. In the air gap 4 is located, expedient embedded between ferrite plates, a Hall plate 5 to generate the Hall voltage.
Zur Löschung der Remanenz besitzt das Gerät noch eine aus Kupferdraht bestehende Wicklung 6, die bei dem dargestellten Ausführungsbeispiel nur symbolisch angedeutet ist. Die Remanenzlöschung kann intermittierend oder kontinuierlich erfolgen. Dabei können Frequenzen von beispielsweise 50 kHz angewendet werden. 7 Schutzansprüche 1 FigurThe device also has a copper wire to delete the remanence existing winding 6, which in the illustrated embodiment is only symbolic is indicated. The remanence deletion can take place intermittently or continuously. Frequencies of, for example, 50 kHz can be used. 7 claims for protection 1 figure
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES27203U DE1822174U (en) | 1958-05-24 | 1958-05-24 | CURRENT METER. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES27203U DE1822174U (en) | 1958-05-24 | 1958-05-24 | CURRENT METER. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1822174U true DE1822174U (en) | 1960-11-24 |
Family
ID=32943368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES27203U Expired DE1822174U (en) | 1958-05-24 | 1958-05-24 | CURRENT METER. |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1822174U (en) |
-
1958
- 1958-05-24 DE DES27203U patent/DE1822174U/en not_active Expired
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