DE683038C - Pruefjoch for measuring the characteristics of magnetic parts - Google Patents

Pruefjoch for measuring the characteristics of magnetic parts

Info

Publication number
DE683038C
DE683038C DEA77720D DEA0077720D DE683038C DE 683038 C DE683038 C DE 683038C DE A77720 D DEA77720 D DE A77720D DE A0077720 D DEA0077720 D DE A0077720D DE 683038 C DE683038 C DE 683038C
Authority
DE
Germany
Prior art keywords
measuring
yoke
test
magnetic
auxiliary coil
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
Application number
DEA77720D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEG AG
Original Assignee
AEG AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AEG AG filed Critical AEG AG
Priority to DEA77720D priority Critical patent/DE683038C/en
Application granted granted Critical
Publication of DE683038C publication Critical patent/DE683038C/en
Expired legal-status Critical Current

Links

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
    • G01R33/14—Measuring or plotting hysteresis curves

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Description

Prüfjoch zum Messen der Kennwerte magnetischer Teile Zusatz zuXrw66g 028 Bei dem Prüfjoch gemäß dem Hauptpatent ist vorgesehen, durch eine symmetrische Anordnung zu einem Mittelsteg magnetische Kreise zu erhalten, die praktisch gleiche Flüsse führen, während der Mittelsteg selbst flußlos ist, und beim Einsetzen eines Probestückes in den einen Kreis die Symmetrie zu stören, so daß sich im Mittelsteg ein Fluß ergibt, der dann gemessen werden kann. Hierfür ist insbesondere im Mittelsteg eine mit Hilfsstrom betriebene und mit einer Ablesevorrichtung versehene Drehspule mit Eisenkern oder eine Unipolarmaschine angeordnet.Test yoke for measuring the characteristic values of magnetic parts Addition to Xrw66g 028 In the test yoke according to the main patent is provided by a symmetrical Arrangement to obtain a central bar magnetic circles that are practically the same Rivers run while the central walkway itself is flowless, and when one is deployed Test piece in the one circle to disturb the symmetry, so that it is in the middle bar gives a flow that can then be measured. This is especially in the middle bar a rotating coil operated with auxiliary power and provided with a reading device arranged with an iron core or a unipolar machine.

Die Erfindung betrifft eine weitere Ausgestaltung für eine derartige Einrichtung und bietet dabei die Möglichkeit, die Messung mit einem reinen Brückenstrom durchzuführen. The invention relates to a further embodiment for such a Facility and offers the possibility of measuring with a pure bridge current perform.

Das wird erreicht, indem der eine magnetische Kreis des Prüfjoches mit einer Hilfsspule versehen und diese mit einem Strom in solcher Weise beschickt wird, daß sie eine vollständige Kompensation für den durch das Einsetzen des Probestückes in den Luftspalt des anderen magnetischen Kreises im Mittelsteg verursachten Magnetfluß ergibt. Wenn dies der Fall ist, verschwindet im Mittelsteg der magnetische Fluß, und es ist daher nur erforderlich, mittels eines Nullinstrumentes festzustellen, daß der Mittelsteg flußlos ist.This is achieved by the one magnetic circuit of the test yoke provided with an auxiliary coil and fed this with a current in such a way will be that they fully compensate for the insertion of the specimen magnetic flux caused in the air gap of the other magnetic circuit in the central web results. If this is the case, the magnetic flux disappears in the middle bar, and it is therefore only necessary to determine by means of a zero instrument that the middle ridge is without a river.

Die Stromstärke, bei der dies eintritt, bildet dann unmittelbar ein Maß für die Magnetisierung im Probestück.The current strength at which this occurs is then immediately a Measure of the magnetization in the test piece.

Das Meßverfahren spielt sich hiernach in der Weise ab, daß die Stromstärke in der Hilfsspule z. B. durch Verstellung eines Vorschaltwiderstandes geändert wird, bis das Meßinstrument im Mittelsteg die Nullstellung einnimmt. Der hierbei die Hilfsspule durchfließende Strom wird darauf gemessen, was einfach durch Ablesung an einem vorgeschalteten Amperemeter geschehen kann. The measuring process then takes place in such a way that the current strength in the auxiliary coil z. B. is changed by adjusting a series resistor, until the measuring instrument in the center bar is in the zero position. The here the auxiliary coil The current flowing through it is measured, which is simply done by reading on an upstream Ammeter can happen.

Ein in dieser Weise ausgebildetes Prüfjoch ist in der Zeichnung veranschaulicht. Der Aufbau entspricht dabei im allgemeinen dem des Prüfjoches nach Abb. I und 2 des Hauptpatentes. Während im Luftspalt s wieder das Probestück g eingesetzt ist, befindet sich nunmehr jedoch im Luftspaltt eine eisenlose Spule u, in deren Stromkreis -ein Regelwiderstand v und ein Amperemeter w liegt. A test yoke designed in this way is illustrated in the drawing. The structure generally corresponds to that of the test yoke according to Figs. I and 2 of the main patent. While the test piece g is inserted again in the air gap s, However, there is now an ironless coil u in the air gap in its circuit - there is a rheostat v and an ammeter w.

Claims (4)

PATENTANSPRÜCHE : I. Prüfjoch zum Messen der Kennwerte magnetischer Teile mit weitgehend beliebigen Abmessungen nach Patent 669 028, dadurch gekennzeichnet, daß der eine magnetische Kreis eine Hilfsspule aufweist, die eine Kompensation des beim Einsetzen des Probestückes in den anderen magnetischen Kreis im Mittelsteg auftretenden magnetischen Flusses ermöglicht.PATENT CLAIMS: I. Test yoke for measuring the characteristic values of magnetic Parts with largely any dimensions according to patent 669 028, characterized in that that the one magnetic circuit has an auxiliary coil that compensates for the when inserting the sample into the other magnetic circuit in the center bar occurring magnetic flux allows. 2. Prüfjoch nach Anspruch I mit zwei symmetrischen Jochhälften, dadurch gekennzeichnet, daß die Hilfsspule als eisenlose Spule in dem Luftspalt zwischen den beiden Jochhälften untergebracht ist. 2. test yoke according to claim I with two symmetrical yoke halves, characterized characterized in that the auxiliary coil as an ironless coil in the air gap between the two yoke halves is housed. 3. Verfahren zum Messen der Kennwerte magnetischer Teile unter Verwendung eines Prüfjoches nach Anspruch I oder 2, dadurch gekennzeichnet, daß der der Hilfsspule zugeführte Strom auf einen Wert eingestellt wird, bei dem der Fluß im Mittelsteg verschwindet, und daß die hierbei eingestellte Stromstärke gemessen wird. 3. Method of measuring the characteristics of magnetic parts using of a test yoke according to claim 1 or 2, characterized in that that of the auxiliary coil supplied current is set to a value at which the flow in the central web disappears, and that the current set here is measured. 4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß das Verschwinden des Flusses mittels eines im Mittelsteg angeordneten Null instrumentes beobachtet wird. 4. The method according to claim 3, characterized in that the disappearance of the flow is observed by means of a null instrument located in the middle bar will.
DEA77720D 1935-11-22 1935-11-22 Pruefjoch for measuring the characteristics of magnetic parts Expired DE683038C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA77720D DE683038C (en) 1935-11-22 1935-11-22 Pruefjoch for measuring the characteristics of magnetic parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA77720D DE683038C (en) 1935-11-22 1935-11-22 Pruefjoch for measuring the characteristics of magnetic parts

Publications (1)

Publication Number Publication Date
DE683038C true DE683038C (en) 1939-10-27

Family

ID=6947183

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA77720D Expired DE683038C (en) 1935-11-22 1935-11-22 Pruefjoch for measuring the characteristics of magnetic parts

Country Status (1)

Country Link
DE (1) DE683038C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971356C (en) * 1952-11-06 1959-01-15 Licentia Gmbh Arrangement for determining the magnetic tension on magnetized ferromagnetic specimens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971356C (en) * 1952-11-06 1959-01-15 Licentia Gmbh Arrangement for determining the magnetic tension on magnetized ferromagnetic specimens

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