DE10014094B4 - Hall sensor - Google Patents
Hall sensor Download PDFInfo
- Publication number
- DE10014094B4 DE10014094B4 DE2000114094 DE10014094A DE10014094B4 DE 10014094 B4 DE10014094 B4 DE 10014094B4 DE 2000114094 DE2000114094 DE 2000114094 DE 10014094 A DE10014094 A DE 10014094A DE 10014094 B4 DE10014094 B4 DE 10014094B4
- Authority
- DE
- Germany
- Prior art keywords
- hall
- output
- current
- converter
- input
- 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 - Fee Related
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
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
- Non-Alcoholic Beverages (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
Hall-Sensor mit
– einem Hall-Element (1), dessen Hall-Elektroden (2,3) mit den Eingängen eines Hall-EMF-Verstärkers (4) verbunden sind
– einem Wandler (8), der den absoluten Spannungswert als Strom anzeigt, wobei der Eingang des Wandlers (8) mit dem Ausgang des Hall-EMF-Verstärkers verbunden ist und dessen Ausgang mit dem ersten Eingang eines Stromgebers (7) verbunden ist, wobei der zweite Eingang des Stromgebers (7) mit dem Ausgang einer Kontrollstromquelle (11) verbunden ist und die Elektroden (5,6) des Hall-Elements (1) mit dem Ausgang des Stromgebers (7) verbunden sind, und
– der Stromgeber (7) das Hall-Element (1) mit einem derartigen Strom versorgt, dass das vom Wandler (8) gelieferte Signal von dem von der Kontrollstromquelle (11) gelieferten Signal abgezogen wird.Hall sensor with
- A Hall element (1), the Hall electrodes (2, 3) of which are connected to the inputs of a Hall EMF amplifier (4)
- A converter (8) which indicates the absolute voltage value as current, the input of the converter (8) being connected to the output of the Hall EMF amplifier and the output of which is connected to the first input of a current generator (7), wherein the second input of the current generator (7) is connected to the output of a control current source (11) and the electrodes (5, 6) of the Hall element (1) are connected to the output of the current generator (7), and
- The current generator (7) supplies the Hall element (1) with such a current that the signal supplied by the converter (8) is subtracted from the signal supplied by the control current source (11).
Description
Die vorliegende Erfindung betrifft einen Hall-Sensor, der zur Messung der magnetischen Feldinduktion geeignet ist und in Messverfahren eingesetzt werden kann, beispielsweise als Magnetometer, Stromstärke- oder Spannungssensor, Abstandsmesser oder Druckmesser.The present invention relates to a Hall sensor used to measure magnetic field induction is suitable and can be used in measuring processes, for example as a magnetometer, current or voltage sensor, distance meter or pressure meter.
Magnetfeld-Umwandler – Hal1-Elemente – sind bekannt
(vgl. 0. K. Homeriki „Semiconductor
magnetic fiel converters – Hallelements", Moskau, Energoatomizdat,
1986 sowie
Es gibt einen Hall-Sensor (vgl. F. W. BELL Catalog, 6120 Hanging Moss Road, Orlando, Florida 32807, Seite 22, Prototyp), der eine lineare Umwandlung des gemessenen Wertes der magnetischen Feldinduktion in Hall-EMF (EMF bedeutet elektromagnetische Kraft) ermöglicht. Dieser Sensor enthält ein Hall-Element und eine Kontrollstromquelle, worin Hall-Elektroden des Hall-Elements mit dem Hall-EMF-Verstärker verbunden sind. Der relative Messfehler, der durch einen solchen Sensor sowie durch andere lineare Umwandler hervorgerufen wird, hängt vom gemessenen Wert ab, und eine akzeptable Genauigkeit der Messung wird in einem relativ engen Messbereich sichergestellt.There is a Hall sensor (see F. W. BELL Catalog, 6120 Hanging Moss Road, Orlando, Florida 32807, Page 22, prototype), which is a linear conversion of the measured Value of the magnetic field induction in Hall EMF (EMF means electromagnetic force). This sensor contains a Hall element and a control current source, wherein Hall electrodes of the Hall element with the Hall EMF amplifier are connected. The relative measurement error caused by such Sensor as well as caused by other linear converters depends on measured value, and an acceptable accuracy of the measurement is ensured in a relatively narrow measuring range.
In einigen Fällen ist es erforderlich, die Messungen in einem Bereich durchzuführen, der die 10-fache Variation des gemessenen Wertes übersteigt und/oder einen sich verhältnismäßig geringfügig veränderten Wert des relativen Fehlers im Gesamtbereich bereitzustellen, Es ist bekannt, dass in einem solchen Fall Meßsysteme mit logarithmischer Umwandlung des gemessenen Wertes die beste Qualität bieten.In some cases, it is required Perform measurements in an area that is 10 times the variation of the measured value and / or a relatively slightly changed one To provide value of the relative error in the full range, there it is known that in such a case measuring systems with logarithmic conversion offer the best quality of the measured value.
Die Aufgabe der vorliegenden Erfindung liegt darin, einen Hall-Sensor bereitzustellen, der Messungen innerhalb eines breiten Variationsbereichs der magnetischen Feldinduktion sicherstellt, während der Fehler über den gesamten Bereich relativ konstant gehalten wird. The object of the present invention is a Hall sensor to provide measurements within a wide range of variation the magnetic field induction, while the error over the entire area is kept relatively constant.
Diese Aufgabe wird durch die im Patentanspruch 1 angegebenen Merkmale gelöst.This object is achieved in the claim 1 specified features solved.
Der Hall-Sensor-Schaltkreis umfasst
das Hall-Element
Der erfindungsgemäße Hall-Sensor-Schaltkreis funktioniert wie folgt.The Hall sensor circuit according to the invention works like this.
Wenn die magnetische Feldinduktion
nahe 0 ist, d. h. wenn kein Eingangssignal vorhanden ist, wird der
Kontrollstrom des Hall-Elements
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU99119996A RU2150866C1 (en) | 1999-09-20 | 1999-09-20 | Method of producing thickened beverage |
RU19990096 | 1999-09-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10014094A1 DE10014094A1 (en) | 2001-04-26 |
DE10014094B4 true DE10014094B4 (en) | 2004-08-26 |
Family
ID=20225077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2000114094 Expired - Fee Related DE10014094B4 (en) | 1999-09-20 | 2000-03-22 | Hall sensor |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE10014094B4 (en) |
RU (1) | RU2150866C1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004010613B4 (en) | 2004-03-02 | 2015-04-02 | Austriamicrosystems Ag | Magnetic field sensor and method of operation |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3235188C2 (en) * | 1982-09-23 | 1986-03-20 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Circuit for measuring magnetic induction with a Hall field probe |
DE3827606C2 (en) * | 1987-08-18 | 1990-03-08 | Leopold Kostal Gmbh & Co Kg, 5880 Luedenscheid, De | |
US5426364A (en) * | 1992-08-08 | 1995-06-20 | Yi; Mingguang | Linear hall circuit for measuring magnetic field strength |
-
1999
- 1999-09-20 RU RU99119996A patent/RU2150866C1/en active
-
2000
- 2000-03-22 DE DE2000114094 patent/DE10014094B4/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3235188C2 (en) * | 1982-09-23 | 1986-03-20 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Circuit for measuring magnetic induction with a Hall field probe |
DE3827606C2 (en) * | 1987-08-18 | 1990-03-08 | Leopold Kostal Gmbh & Co Kg, 5880 Luedenscheid, De | |
US5426364A (en) * | 1992-08-08 | 1995-06-20 | Yi; Mingguang | Linear hall circuit for measuring magnetic field strength |
Non-Patent Citations (3)
Title |
---|
F.W. Bell Catalog, 6120 Hanging Moss Road, Orlando, Florida 32807, S. 22 * |
HOMERIKI,O.K.: "Semiconductor magnetic field convertus", Moskau, Energoatomizdat, 1986 * |
JP 4-13982 A, In: Patent Abstracts of Japan, P-1342, 22.4.1992, Vol. 16, No. 167 * |
Also Published As
Publication number | Publication date |
---|---|
RU2150866C1 (en) | 2000-06-20 |
DE10014094A1 (en) | 2001-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |