DE1194971B - Magnetic field measuring probe with Hall generator - Google Patents
Magnetic field measuring probe with Hall generatorInfo
- Publication number
- DE1194971B DE1194971B DES84871A DES0084871A DE1194971B DE 1194971 B DE1194971 B DE 1194971B DE S84871 A DES84871 A DE S84871A DE S0084871 A DES0084871 A DE S0084871A DE 1194971 B DE1194971 B DE 1194971B
- Authority
- DE
- Germany
- Prior art keywords
- magnetic field
- hall
- measuring probe
- hall generator
- field 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/07—Hall effect devices
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
Description
Magnetfeld-Meßsonde mit Hallgenerator Es ist bekannt, daß sich zur Messung von magnetischen Feldern Hallgeneratoren gut eignen. Ist dabei eine sehr hohe Genauigkeit erwünscht, so müssen die verschiedenen Störeinflüsse auskompensiert werden, beispielsweise Nullpunktfehler, Temperaturfehler u. dgl. Zu diesem Zweck ist es unter anderem bekannt, zwei Hall generatoren im Magnetfeld anzuordnen (s. z. B. die deutsche Auslegeschrift 1 072315).Magnetic field measuring probe with Hall generator It is known that for Hall generators are well suited for measuring magnetic fields. Is a very If high accuracy is required, the various interfering influences must be compensated for are, for example, zero point errors, temperature errors and the like. For this purpose it is known, among other things, to arrange two Hall generators in the magnetic field (see Sect. z. B. the German Auslegeschrift 1 072315).
Trotz der verschiedenen Kompensationsmaßnahmen haben sich bei besonders genauen Magnetfeldmessungen in stärkeren Magnetfeldern Fehler ergeben. Eingehende Untersuchungen haben gezeigt, daß die Empfindlichkeit eines Hallgenerators geringfügig von der Richtung des Magnetfeldes abhängt. Trotz gleichen Betrages des Feldes ist die Hallspannung für die eine Magnetfeldrichtung kleiner bzw. größer als für die andere Magnetfeldrichtung. Despite the various compensatory measures, especially accurate magnetic field measurements in stronger magnetic fields result in errors. Incoming Investigations have shown that the sensitivity of a Hall generator is negligible depends on the direction of the magnetic field. Despite the same amount of the field is the Hall voltage for one magnetic field direction is smaller or larger than for the other magnetic field direction.
Der Unterschied liegt in der Größenordnung von 10/ovo und stört bei hochgenauen Feldmessungen und -regelungen, etwa des Magnetfeldes von Experimentiermagneten in kernphysikalischen Instituten.The difference is in the order of magnitude of 10 / ovo and is annoying high-precision field measurements and controls, such as the magnetic field of experiment magnets in nuclear physics institutes.
Die Erfindung betrifft eine Magnetfeldmeßsonde mit zwei Hallgeneratoren, deren Summenhallspannung als Meßwert dient. Die Meßsonde ist so aufgebaut, daß zwei Hallgeneratoren mit gleich großem Richtungseffekt derart im Kraftlinienfeld angeordnet sind, daß sich der Richtungseffekt aufhebt, so daß der Betrag der Summenhallspannung von der Richtung des Magnetfeldes unabhängig ist. The invention relates to a magnetic field probe with two Hall generators, whose total reverberation voltage is used as the measured value. The measuring probe is constructed so that two Hall generators with the same directional effect arranged in this way in the force line field are that the directional effect cancels, so that the amount of the total reverberation voltage is independent of the direction of the magnetic field.
Nähere Einzelheiten der Erfindung seien im folgenden an Hand von Ausführungsbeispielen erläutert, die in der Zeichnung (F i g. 1 bis 4) schematisch dargestellt sind. Further details of the invention are given below with reference to Embodiments explained in the drawing (F i g. 1 to 4) schematically are shown.
In F i g. 1 sind zwei Hallgeneratoren 1 und 2 als im gleichen Magnetfeld angeordnet dargestellt. Das Magnetfeld ist durch die Zeichen 3 angedeutet. Die beiden Hallgeneratoren werden von je einem Steuerstromes, bzw. 1S2 durchflossen, die aus galvanisch getrennten Stromquellen 4, 5 stammen. Die Hallelektroden sind in Reihe geschaltet, so daß an den Klemmen 6, 7 die Summe Un der Hallspannungen abnehmbar ist. In Fig. 1 are two Hall generators 1 and 2 than in the same magnetic field shown arranged. The magnetic field is indicated by the symbol 3. The two Hall generators each have a control current or 1S2 flowing through them, which from galvanically separated power sources 4, 5 originate. The hall electrodes are in series switched so that the sum Un of the Hall voltages can be removed at terminals 6, 7 is.
Der Hallgenerator 1 ist im Gegensatz zum Hallgenerator 2 mit Diagonallinien dargestellt, um anzudeuten, daß der eine Hallgenerator gegenüber dem anderen umgeklappt wurde. Beide Hallgeneratoren wurden derart ausgesucht, daß sie den gleichen Richtungseffekt zeigen, so daß nach dem Umklappen des einen Hallgenerators die Richtungseffekte in der Summenhallspannung verschwinden. In contrast to Hall generator 2, Hall generator 1 has diagonal lines shown to indicate that one Hall generator flipped over in relation to the other became. Both reverb generators were chosen in such a way that they have the same directional effect show, so that the directional effects after folding down one Hall generator disappear in the total reverberation voltage.
Man kann auch die Steuerstrompfade der beiden Hallgeneratoren in Reihe schalten und vom gleichen Strom is durchfließen lassen. Soll ein Gleichfeld gemessen werden, muß der Steuerstrom dann ein Wechselstrom sein, während die Hallkreise durch Hintereinanderschalten der Sekundärspannungen zweier Übertrager 8, 9 summiert werden. Im übrigen ist Aufbau und Wirkungsweise ähnlich der nach Fig. 1. You can also use the control current paths of the two Hall generators in Connect in series and let the same current flow through it. Should be a constant field are measured, the control current must then be an alternating current, while the Hall circuits by connecting the secondary voltages of two transformers 8, 9 in series will. Otherwise, the structure and mode of operation are similar to that of FIG. 1.
F i g. 3 zeigt eine Möglichkeit zur Unterbringung der Hallgeneratoren 1 und 2 im Luftspalt zwischen zwei Polschuhen 10 und 11. Die beiden Hallgeneratoren sind auf je eine Unterlage 12, 13 aufgebracht, während die Gesamtanordnung mit Hilfe von Vergußmasse 14 vergossen werden kann. Man erkennt aus der nicht maßstäblichen Zeichnung nach F i g. 3, daß der Hallgenerator 2 gegenüber dem Hallgenerator 1 umgeklappt worden ist. F i g. 3 shows one way of accommodating the Hall generators 1 and 2 in the air gap between two pole pieces 10 and 11. The two Hall generators are each applied to a base 12, 13, while the overall arrangement with the help can be cast by potting compound 14. One recognizes from the not to scale Drawing according to FIG. 3 that the Hall generator 2 is folded over in relation to the Hall generator 1 has been.
Eine andere Möglichkeit zeigt F i g. 4 in Anlehnung an die Anordnung nach der deutschen Auslegeschrift 1 072316, wobei zugleich auch eine Temperaturkompensation erzielt werden kann. Bei der Anordnung nach F i g. 4 ist dafür zu sorgen, daß die Steuerströme der beiden Hallgeneratoren in entgegengesetzter Richtung verlaufen. Another possibility is shown by FIG. 4 based on the arrangement according to the German Auslegeschrift 1 072316, with temperature compensation at the same time can be achieved. In the arrangement according to FIG. 4 is to ensure that the Control currents of the two Hall generators run in opposite directions.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES84871A DE1194971B (en) | 1963-04-25 | 1963-04-25 | Magnetic field measuring probe with Hall generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES84871A DE1194971B (en) | 1963-04-25 | 1963-04-25 | Magnetic field measuring probe with Hall generator |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1194971B true DE1194971B (en) | 1965-06-16 |
Family
ID=7511988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES84871A Pending DE1194971B (en) | 1963-04-25 | 1963-04-25 | Magnetic field measuring probe with Hall generator |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1194971B (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1791213B1 (en) * | 1966-12-30 | 1971-09-30 | Sony Corp | MAGNETIC FIELD DETECTOR |
DE2935302A1 (en) * | 1978-09-01 | 1980-03-20 | Littwin Arthur K | DEVICE FOR TESTING INDIVIDUAL AND MANY PERMANENT MAGNETS AND TEST METHODS THEREFOR |
EP0180034A1 (en) * | 1984-09-27 | 1986-05-07 | Nukem GmbH | Device with two Hall generators for measuring the gradient of magnetic fields |
DE3828028A1 (en) * | 1988-08-18 | 1990-02-22 | Alfred Bruehn | Method for the measurement of magnetic fields |
EP0548391A1 (en) * | 1991-12-21 | 1993-06-30 | Deutsche ITT Industries GmbH | Offset compensated Hall-sensor |
DE102011017096A1 (en) * | 2011-04-14 | 2012-10-18 | Austriamicrosystems Ag | Hall sensor semiconductor device and method of operating the Hall sensor semiconductor device |
US10042010B2 (en) | 2012-02-01 | 2018-08-07 | Ams Ag | Hall sensor and sensor arrangement |
-
1963
- 1963-04-25 DE DES84871A patent/DE1194971B/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1791213B1 (en) * | 1966-12-30 | 1971-09-30 | Sony Corp | MAGNETIC FIELD DETECTOR |
DE2935302A1 (en) * | 1978-09-01 | 1980-03-20 | Littwin Arthur K | DEVICE FOR TESTING INDIVIDUAL AND MANY PERMANENT MAGNETS AND TEST METHODS THEREFOR |
EP0180034A1 (en) * | 1984-09-27 | 1986-05-07 | Nukem GmbH | Device with two Hall generators for measuring the gradient of magnetic fields |
DE3828028A1 (en) * | 1988-08-18 | 1990-02-22 | Alfred Bruehn | Method for the measurement of magnetic fields |
EP0548391A1 (en) * | 1991-12-21 | 1993-06-30 | Deutsche ITT Industries GmbH | Offset compensated Hall-sensor |
US5406202A (en) * | 1991-12-21 | 1995-04-11 | Deutsche Itt Industries Gmbh | Offset-compensated hall sensor having plural hall detectors having different geometrical orientations and having switchable directions |
DE102011017096A1 (en) * | 2011-04-14 | 2012-10-18 | Austriamicrosystems Ag | Hall sensor semiconductor device and method of operating the Hall sensor semiconductor device |
US9349943B2 (en) | 2011-04-14 | 2016-05-24 | Ams Ag | Hall sensor semiconductor component and method for operating the hall sensor semiconductor component |
US10042010B2 (en) | 2012-02-01 | 2018-08-07 | Ams Ag | Hall sensor and sensor arrangement |
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