DE1209198B - Device with a magnetic field-dependent semiconductor resistor - Google Patents
Device with a magnetic field-dependent semiconductor resistorInfo
- Publication number
- DE1209198B DE1209198B DES88506A DES0088506A DE1209198B DE 1209198 B DE1209198 B DE 1209198B DE S88506 A DES88506 A DE S88506A DE S0088506 A DES0088506 A DE S0088506A DE 1209198 B DE1209198 B DE 1209198B
- Authority
- DE
- Germany
- Prior art keywords
- ferrite
- curve
- plate
- air gap
- resistance
- 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
- 239000004065 semiconductor Substances 0.000 title claims description 11
- 230000001419 dependent effect Effects 0.000 title claims description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims description 33
- 230000005284 excitation Effects 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 8
- 230000005415 magnetization Effects 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims 3
- 239000000463 material Substances 0.000 claims 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 210000003608 fece Anatomy 0.000 claims 1
- WPYVAWXEWQSOGY-UHFFFAOYSA-N indium antimonide Chemical compound [Sb]#[In] WPYVAWXEWQSOGY-UHFFFAOYSA-N 0.000 claims 1
- 239000010871 livestock manure Substances 0.000 claims 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 1
- 230000035699 permeability Effects 0.000 claims 1
- 238000004382 potting Methods 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 238000004513 sizing Methods 0.000 claims 1
- 230000006698 induction Effects 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/10—Magnetoresistive devices
Landscapes
- Magnetic Ceramics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
AUSLEGESCHRIFTEDITORIAL
Deutsche KL: 21c-54/05German KL: 21c-54/05
Nummer: 1209198Number: 1209198
Aktenzeichen:File number:
Anmeldetag: 30. November 1963Filing date: November 30, 1963
Auslegetag: 20. Januar 1966Opened on: January 20, 1966
Bringt man einen magnetfeldabhängigen Widerstand (Feldplatte) in den Luftspalt eines Elektromagneten, so ändert sich der Widerstand in Abhängigkeit von der Erregung (Ampere-Windungszahl) bis ungefähr 0,6 · 103 AW quadratisch und darüber hinaus annähernd linear. Eine solche Anordnung, bei der die Feldplatte zwischen Ferritplatten eingekapselt ist, um sie vor schädigenden Einflüssen zu schützen und um unter anderem gleichzeitig die effektive Luftspaltbreite klein zu halten, ist bereits in der deutschen Auslegeschrift 1 098 581 beschrieben.If you bring a magnetic field-dependent resistor (field plate) into the air gap of an electromagnet, the resistance changes depending on the excitation (number of ampere turns) up to about 0.6 · 10 3 AW quadratically and beyond that almost linearly. Such an arrangement, in which the field plate is encapsulated between ferrite plates in order to protect it from damaging influences and, among other things, to keep the effective air gap width small, is already described in German Auslegeschrift 1,098,581.
Bei der Anwendung der Feldplatte ist es oft erwünscht, einen linearen Zusammenhang zwischen der Erregung des Elektromagneten und dem Widerstand der Feldplatte zu haben. Außerdem ist es von Vorteil, die Anfangsempfindlichkeit der Feldplatte zu erhöhen.When using the field plate, it is often desirable to have a linear relationship between the To have excitation of the electromagnet and the resistance of the field plate. It is also advantageous to increase the initial sensitivity of the field plate.
Die Erfindung bezieht sich auf eine Einrichtung mit magnetfeldabhängigem Halbleiterwiderstand (Feldplatte) und Ferritplatten, die in den Luftspalt eines Elektromagneten eingesetzt sind. Erfindungsgemäß sind 30 bis 50 % der Breite des Luftspaltes des Elektromagneten mit Ferrit ausgefüllt, dessen Sättigung wesentlich unter der des Magnetkerns liegt und das eine relativ flache Magnetisierungskurve besitzt.The invention relates to a device with a magnetic field-dependent semiconductor resistor (field plate) and ferrite plates inserted into the air gap of an electromagnet. According to the invention 30 to 50% of the width of the air gap of the electromagnet is filled with ferrite, its saturation is significantly below that of the magnetic core and which has a relatively flat magnetization curve.
Mit der erfindungsgemäßen Einrichtung erhält man eine lineare Beziehung zwischen dem Widerstand der Feldplatte und der Ampere-Windungszahl des Elektromagneten, und man erhöht gleichzeitig die Anfangsempfindlichkeit der Feldplatte. Das im Luftspalt befindliche Ferrit, das auch auf der Feldplatte aufgekittet sein kann, verringert den wirksamen Luftspalt bis zur Sättigung, die bei etwa 3 bis 4 kG (entsprechend etwa 0,6 · 103 AW) liegt. Die Abmessung und die Sättigungsinduktion des Ferrits kann so gewählt werden, daß schon von geringer Erregung an der Widerstand der Feldplatte proportional zur Erregung verläuft.With the device according to the invention, a linear relationship is obtained between the resistance of the field plate and the number of ampere turns of the electromagnet, and at the same time the initial sensitivity of the field plate is increased. The ferrite located in the air gap, which can also be cemented onto the field plate, reduces the effective air gap to saturation, which is around 3 to 4 kG (corresponding to around 0.6 · 10 3 AW). The dimensions and the saturation induction of the ferrite can be chosen so that even a slight excitation at the resistance of the field plate is proportional to the excitation.
An Hand von einigen als Beispiel dienenden Figuren wird die Wirkungsweise der Einrichtung nach der Erfindung erläutert. Es zeigtOn the basis of some figures serving as examples, the mode of operation of the device is illustrated the invention explained. It shows
F i g. 1 eine schematische Zeichnung der Einrichtung, F i g. 1 a schematic drawing of the device,
F i g. 2 eine Meßkurve mit und ohne Ferritplatte im Luftspalt,F i g. 2 a measurement curve with and without ferrite plate in the air gap,
F i g. 3 den vergrößerten Anfangsbereich der in F i g. 2 dargestellten Meßkurven, F i g. 4 eine Feldplatte in der Aufsicht, F i g. 5 eine Feldplatte im Querschnitt, F i g. 6 einen Elektromagneten mit Luftspalt,F i g. 3 shows the enlarged initial area of the in FIG. 2 graphs shown, F i g. 4 is a top view of a field plate, FIG. 5 a field plate in cross section, F i g. 6 an electromagnet with an air gap,
F i g. 7 eine Meßkurve für verschiedene Dicken der Feldplatte,F i g. 7 a measurement curve for different thicknesses of the field plate,
F i g. 8 die Temperaturabhängigkeit der Einrichtung.F i g. 8 the temperature dependence of the device.
Einrichtung mit einem magnetfeldabhängigen
HalbleiterwiderstandFacility with a magnetic field dependent
Semiconductor resistance
Anmelder:Applicant:
Siemens-Schuckertwerke Aktiengesellschaft,Siemens-Schuckertwerke Aktiengesellschaft,
Berlin und Erlangen,Berlin and Erlangen,
Erlangen, Werner-von-Siemens-Str. 50Erlangen, Werner-von-Siemens-Str. 50
Als Erfinder benannt:Named as inventor:
Dipl.-Phys. Dr. Herbert Weiß, NürnbergDipl.-Phys. Dr. Herbert Weiß, Nuremberg
In F i g. 1 liegt die Feldplatte 1 zwischen den Polschuhen 2 und 3 eines Elektromagneten 5. Im Luftspalt befindet sich außerdem eine Ferritplatte 4, die beispielsweise 40% der Spaltbreite ausfüllt. Die Induktion B des Magneten wird durch den Strom / erregt. Der Halbleiterkörper ist mit einer Spannungsquelle 6 und einem Meßgerät 7 in Reihe geschaltet. In Fig. 1, the field plate 1 lies between the pole pieces 2 and 3 of an electromagnet 5. In the air gap there is also a ferrite plate 4 which, for example, fills 40% of the gap width. The induction B of the magnet is excited by the current /. The semiconductor body is connected in series with a voltage source 6 and a measuring device 7.
In F i g. 2 sind Meßkurven dargestellt. In der Abszisse ist die Erregung B (in AW) des Elektromagneten (Ampere-Windungszahl) und in der Ordinate der Widerstand Rp der Feldplatte in Ohm aufgetragen. Die beiden eingezeichneten Kurven stellen also die Beziehung zwischen der magnetischen Erregung und dem Widerstand der Feldplatte dar. Die gestrichelte Kurve 8 wurde ohne Verwendung einer Ferritplatte aufgenommen, und die Kurve 9 gilt für den Fall, daß der Luftspalt des Elektromagneten zu 40% mit Ferrit ausgefüllt ist.In Fig. 2 measurement curves are shown. The excitation B (in AW) of the electromagnet (number of ampere turns) is plotted on the abscissa and the resistance Rp of the field plate in ohms is plotted on the ordinate. The two curves shown represent the relationship between the magnetic excitation and the resistance of the field plate. The dashed curve 8 was recorded without the use of a ferrite plate, and curve 9 applies to the case where the air gap of the electromagnet is 40% filled with ferrite is.
Bei Vergleich der Kurven 8 und 9 fällt folgendes auf: Der Beginn des linearen Teils der Kurven wird durch das Einsetzen einer Ferritplatte in den Luftspalt von etwa 0,4 · 103 nach etwa 0,13 · 103 Ampere-Windungen verschoben. Man erreicht auf diese Weise also, daß der Mindesterregerstrom, bei dem die Beziehung zwischen Erregung und dem Feldplattenwiderstand linear zu v/erden beginnt, auf etwa ein Drittel herabgesetzt wird.When comparing curves 8 and 9, the following is noticeable: The beginning of the linear part of the curves is shifted from about 0.4 · 10 3 to about 0.13 · 10 3 ampere turns by inserting a ferrite plate into the air gap. In this way the result is that the minimum excitation current at which the relationship between excitation and the field plate resistance begins to be linearly grounded is reduced to about one third.
509 779/318509 779/318
Claims (2)
kann. Die Trägerplatte ist mit 16, der Halbleiterwiderstand mit 18 und dessen Zuleitungen sind mit 60F i g. 4 applied, especially cemented, the source should be galvanically separated from them,
can. The carrier plate is 16, the semiconductor resistor 18 and its leads are 60
Trägerplatte eine Dicke c = 0,557 mm, die Ferritplatten hatten verschiedene Dicken d — 0,5, 1,0 und 1. Einrichtung mit magnetfeldabhängigem HaIb-1,5 mm und der zwischen beiden liegende Halbleiter leiterwiderstand und Ferritplatten, die in den Lufthatte eine Dicke e = 18 μ. 65 spalt eines Elektromagneten eingesetzt sind, d a-19 designated. In three exemplary embodiments, the claims had:
Carrier plate a thickness c = 0.557 mm, the ferrite plates had different thicknesses d - 0.5, 1.0 and 1. Device with magnetic field-dependent half-1.5 mm and the semiconductor conductor resistance between the two and ferrite plates that had a thickness in the air e = 18 µ. 65 gap of an electromagnet are used, d a-
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES88506A DE1209198B (en) | 1963-11-30 | 1963-11-30 | Device with a magnetic field-dependent semiconductor resistor |
NL6407692A NL6407692A (en) | 1963-11-30 | 1964-07-07 | |
BE650557D BE650557A (en) | 1963-11-30 | 1964-07-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES88506A DE1209198B (en) | 1963-11-30 | 1963-11-30 | Device with a magnetic field-dependent semiconductor resistor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1209198B true DE1209198B (en) | 1966-01-20 |
Family
ID=7514493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES88506A Pending DE1209198B (en) | 1963-11-30 | 1963-11-30 | Device with a magnetic field-dependent semiconductor resistor |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE650557A (en) |
DE (1) | DE1209198B (en) |
NL (1) | NL6407692A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005040316A1 (en) * | 2005-08-25 | 2007-03-01 | Lisa Dräxlmaier GmbH | Current measuring device for use in motor vehicle battery, has control cores with control windings for magnetically saturating control cores for controlling effective length of air gap, where component part is arranged between control cores |
DE102006032763A1 (en) * | 2006-07-14 | 2008-01-17 | Lisa Dräxlmaier GmbH | Apparatus and method for measuring a current flowing in an electrical conductor |
DE102006032762A1 (en) * | 2006-07-14 | 2008-01-31 | Lisa Dräxlmaier GmbH | Apparatus and method for measuring a current flowing in an electrical conductor |
US7541799B2 (en) | 2005-05-25 | 2009-06-02 | Lisa Dräxlmaier GmbH | Method and device for measuring a current flowing in an electrical conductor |
US20120268114A1 (en) * | 2011-04-21 | 2012-10-25 | Abb Ag | Current sensor with a magnetic core |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1098581B (en) * | 1955-03-31 | 1961-02-02 | Siemens Ag | Device with a semiconductor body with a magnetic field-dependent resistance |
-
1963
- 1963-11-30 DE DES88506A patent/DE1209198B/en active Pending
-
1964
- 1964-07-07 NL NL6407692A patent/NL6407692A/xx unknown
- 1964-07-15 BE BE650557D patent/BE650557A/fr unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1098581B (en) * | 1955-03-31 | 1961-02-02 | Siemens Ag | Device with a semiconductor body with a magnetic field-dependent resistance |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7541799B2 (en) | 2005-05-25 | 2009-06-02 | Lisa Dräxlmaier GmbH | Method and device for measuring a current flowing in an electrical conductor |
DE102005040316A1 (en) * | 2005-08-25 | 2007-03-01 | Lisa Dräxlmaier GmbH | Current measuring device for use in motor vehicle battery, has control cores with control windings for magnetically saturating control cores for controlling effective length of air gap, where component part is arranged between control cores |
DE102005040316B4 (en) * | 2005-08-25 | 2007-09-27 | Lisa Dräxlmaier GmbH | Apparatus and method for measuring a current flowing in an electrical conductor |
US7332903B2 (en) | 2005-08-25 | 2008-02-19 | Lisa Dräxlmaier GmbH | Device and method for measuring a current flowing in an electrical conductor |
DE102006032763A1 (en) * | 2006-07-14 | 2008-01-17 | Lisa Dräxlmaier GmbH | Apparatus and method for measuring a current flowing in an electrical conductor |
DE102006032762A1 (en) * | 2006-07-14 | 2008-01-31 | Lisa Dräxlmaier GmbH | Apparatus and method for measuring a current flowing in an electrical conductor |
DE102006032762B4 (en) * | 2006-07-14 | 2009-05-07 | Lisa Dräxlmaier GmbH | Method for measuring a current flowing in an electrical conductor and use of the method and a device for monitoring currents in the electrical system of a motor vehicle |
DE102006032763B4 (en) * | 2006-07-14 | 2009-05-07 | Lisa Dräxlmaier GmbH | Apparatus and method for measuring a current flowing in an electrical conductor |
US7579825B2 (en) | 2006-07-14 | 2009-08-25 | Lisa Dräxlmaier GmbH | Device and method for measuring a current flowing in an electrical conductor |
DE102006032762B8 (en) * | 2006-07-14 | 2009-10-08 | Lisa Dräxlmaier GmbH | Method for measuring a current flowing in an electrical conductor and use of the method and a device for monitoring currents in the electrical system of a motor vehicle |
US7923986B2 (en) | 2006-07-14 | 2011-04-12 | Lisa Draexlmaier Gmbh | Device and method for measuring a current flowing in an electrical conductor |
US20120268114A1 (en) * | 2011-04-21 | 2012-10-25 | Abb Ag | Current sensor with a magnetic core |
Also Published As
Publication number | Publication date |
---|---|
NL6407692A (en) | 1965-05-31 |
BE650557A (en) | 1964-11-03 |
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