DE939887C - Testing device for magnetic sheets - Google Patents
Testing device for magnetic sheetsInfo
- Publication number
- DE939887C DE939887C DES26239A DES0026239A DE939887C DE 939887 C DE939887 C DE 939887C DE S26239 A DES26239 A DE S26239A DE S0026239 A DES0026239 A DE S0026239A DE 939887 C DE939887 C DE 939887C
- Authority
- DE
- Germany
- Prior art keywords
- iron
- sample
- coil
- magnetic sheets
- sheet metal
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 230000006698 induction Effects 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
Description
In Patent 937 115 ist ein Prüfgerät für Magnetbleche beschrieben, bei dem die kleine, zu prüfende Blechprobe einem größeren Blechpaket beigepackt ist und mit diesem gemeinsam von dem Strom einer Spannung vorgegebener Kurvenform magnetisiert wird. In patent 937 115 a testing device for magnetic sheets is described, in which the small sheet metal sample to be tested is enclosed in a larger sheet metal package is and with this jointly by the current of a voltage of predetermined waveform is magnetized.
Die Erfindung nach dem Hauptpatent der Prüfung der Magnetbleche, vorzugsweise im sinusförmigen Wechselfeld, wird gemäß der Zusatzerfindung dadurch weitergebildet, daß mit der Spule zur Magnetisierung der Blechprobe eine weitere Spule mit Eisenkern und möglichst gleicher Amperewinduugszahl pro cm für die Magnetisierung des Eisens, aber vorzugsweise bei größerem Eisenquerschnitt als bei der Probe, in Reihe an der gleichen Stromquelle liegt. Somit erhält zur Erzwingung der sinusförmig verlaufenden Induktion in der Blechprohe nicht der Probentrausformator selbst ein Blechpaket mit erheblichem Eisenquerschnitt, sondern dem Probentransformator wird eine Spule mit Eisenkern vorgeschaltet, deren Stromaufnahme bei sinusförmiger Spannung zugleich auch eine sinusförmig- verlaufende Magnetisierung in dem nachgeschalteten Prohentransformator bewirkt. The invention according to the main patent for testing magnetic sheets, preferably in the sinusoidal alternating field, according to the additional invention developed that with the coil for magnetizing the sheet metal sample another Coil with iron core and if possible the same number of ampere windings per cm for the magnetization of iron, but preferably with a larger iron cross-section than the specimen, in Row is connected to the same power source. Thus, to enforce the sinusoidal running induction in the Blechprohe not the sample transformer itself Laminated core with a considerable iron cross-section, but the sample transformer is a coil with an iron core is connected upstream, its current consumption at sinusoidal voltage at the same time, there is also a sinusoidal magnetization in the downstream Prohene transformer causes.
Zweckmäßig ist es, wenn die vorgeschaltete Spule oder der vorgeschaltete Transformator einen Eisenkern mit in magnetischer Hinsicht gleichen oder ähnlichen Eigenschaften wie die Probe hat. It is useful if the upstream coil or the upstream Transformer has an iron core with magnetically identical or similar Properties like the sample has.
Zur Erläuterung der Erfindung dient eine Figur als Beispiel für eine Ausführung des Erfindungs-.gedankens. Gemaß der Figur:iegt-eine- Wechselspannung an der Reihenschaltung einer Drosselspule oder eines- Transformators I mit dem Probentransformator 2. Wenn die Spule I eine sinusförmige Spannung enthält, stellt sich ein solcher Strom ein, der in seinem Verlauf eine sinusförmige Induktion in dem zugehörigen Eisenkern 3 entstehen läßt. Dieser gleiche Strom fließt über die Primärwicklung des Probentransformators 2 und erzeugt somit auch im Probentrausformator eine sinusförmige verlaufende Induktion. To explain the invention, a figure serves as an example of a Execution of the inventive idea. According to the figure: there is an alternating voltage on the series connection of a choke coil or a transformer I with the sample transformer 2. If the coil I contains a sinusoidal voltage, this is the case Current a, which in its course a sinusoidal induction in the associated Iron core 3 can arise. This same current flows through the primary winding of the sample transformer 2 and thus also generates a sinusoidal one in the sample transformer running induction.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES26239A DE939887C (en) | 1951-12-09 | 1951-12-09 | Testing device for magnetic sheets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES26239A DE939887C (en) | 1951-12-09 | 1951-12-09 | Testing device for magnetic sheets |
Publications (1)
Publication Number | Publication Date |
---|---|
DE939887C true DE939887C (en) | 1956-03-08 |
Family
ID=7478642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES26239A Expired DE939887C (en) | 1951-12-09 | 1951-12-09 | Testing device for magnetic sheets |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE939887C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1089474B (en) * | 1959-09-28 | 1960-09-22 | Siemens Ag | Arrangement for monitoring the magnetization losses of electrical steel sheets of varying thickness in a continuous process |
-
1951
- 1951-12-09 DE DES26239A patent/DE939887C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1089474B (en) * | 1959-09-28 | 1960-09-22 | Siemens Ag | Arrangement for monitoring the magnetization losses of electrical steel sheets of varying thickness in a continuous process |
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