DE10259223B3 - Position detector registering rotary- or linear motion, includes excitation magnet, ferromagnetic component, coil and sensor - Google Patents
Position detector registering rotary- or linear motion, includes excitation magnet, ferromagnetic component, coil and sensor Download PDFInfo
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- DE10259223B3 DE10259223B3 DE10259223A DE10259223A DE10259223B3 DE 10259223 B3 DE10259223 B3 DE 10259223B3 DE 10259223 A DE10259223 A DE 10259223A DE 10259223 A DE10259223 A DE 10259223A DE 10259223 B3 DE10259223 B3 DE 10259223B3
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- position detector
- excitation magnet
- detector according
- ferromagnetic element
- ferromagnetic
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
- G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/2006—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
- G01D5/2033—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils controlling the saturation of a magnetic circuit by means of a movable element, e.g. a magnet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/4815—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals using a pulse wire sensor, e.g. Wiegand wire
Abstract
Description
Die Erfindung betrifft einen Positionsdetektor für das Erfassen von translatorischen und/oder rotatorischen Bewegungen unter Verwendung eines ferromagnetischen Elementes.The invention relates to a position detector for the detection of translational and / or rotary movements using of a ferromagnetic element.
Solche ferromagnetischen Elemente
sind wie in der
Bei einer bekannten Ausbildung als
Drehwinkelsensor, vgl. z. B.
Wie in der eingangs genannten
Wegen der mindestens zwei über den Umfang verteilten Sensoren ist mit einem erheblichen baulichen Aufwand zu rechnen, denn die Impulsdrahtsensoren sind nicht beliebig klein, so dass z. B. Umdrehungszähler mit kleinem Durchmesser nicht zu realisieren sind. Außerdem sind diese Sensoren relativ teuer.Because of the at least two over the Scope of distributed sensors involves considerable construction effort to be calculated, because the pulse wire sensors are not arbitrarily small, so that e.g. B. Revolution counter cannot be realized with a small diameter. Also are these sensors are relatively expensive.
Aus der
Es ist ferner bekannt, bei einem
solchen Positionsdetektor mit Hilfe eines einzigen Sensors Umdrehung
und Umdrehungsrichtung einer Welle festzustellen, indem der als
Wieganddraht ausgebildete Sensor für die bewegungsrichtungsabhängige Impulserzeugung
zur Bewegungsrichtung eines dem Wieganddraht gegenüberliegenden
Abschnitts mit magnetischer Polarität geneigt ist; vgl. die genannte
Nachteilig bei einer solchen Anordnung ist, dass infolge der vorgebbaren Polarisierung zwar eine Drehrichtungserkennung erfolgen kann, diese aber auf die durch die Polarisierung vorgegebene Drehrichtung, also immer nur auf eine einzige Drehrichtung, beschränkt ist.A disadvantage of such an arrangement is that due to the predeterminable polarization a direction of rotation detection can take place, but this on the given by the polarization Direction of rotation, that is always limited to a single direction of rotation.
Für das Erfassen beider Drehrichtungen einer Welle sind dann ebenfalls mindestens zwei solcher Sensoren mit den zugehörigen Auswerteschaltungen nötig. Darüber hinaus haftet einer solchen Anordnung unter Umständen der Nachteil einer sehr geringen Energieausbeute an, da der Winkel zwischen Bewegungsrichtung und Ausrichtung der Sensoren eine entscheidende Rolle spielt. Ein Arbeiten ohne Energiezufuhr von Außen ist daher bei einer solchen Anordnung schwierig.For the detection of both directions of rotation of a shaft are then also at least two such sensors with the associated evaluation circuits are necessary. Furthermore such an arrangement may be disadvantageous low energy yield because the angle between the direction of movement and sensor alignment plays a crucial role. On Working without external energy supply is therefore in such an arrangement difficult.
Hier Abhilfe zu schaffen ist Aufgabe der Erfindung.It is the task to remedy this the invention.
Ausgehend von der Tatsache, dass in ferromagnetischen Materialien die Wechselwirkung der magnetischen Momente benachbarter Atome mit unterschiedlicher Magnetisierungsrichtung sehr stark ist, was zur Ausrichtung der Momente in kleinen Raumbereichen, den so genannten Weißschen Bezirken, führt, die durch als Blochwände be zeichnete Übergangsschichten voneinander getrennt sind, ist es nun möglich durch, z. B. mechanische Streckung eines ferromagnetischen Drahtes, eine einzige Domäne einheitlicher Magnetisierungsrichtung dauerhaft auszubilden. Wird eine solche Domäne in ein äußeres magnetisches Feld bestimmter Größe und Richtung gebracht, dann klappt diese Domäne nicht als Ganzes um, sondern ihre Elementarmagnete klappen von einer bestimmten Ausgangsposition aus – vorzugsweise einem Drahtende – dominoartig in Richtung des äußeren Magnetfeldes. Dies führt zu einer Umklappwelle endlicher Geschwindigkeit in dem ferromagnetischen Element, die aber groß gegenüber der Geschwindigkeit des erregenden Magneten ist, so dass von einem "schlagartigen Umklappen" dieser Domäne gesprochen werden darf.Based on the fact that the interaction of the magnetic moments of neighboring atoms with different magnetization directions is very strong in ferromagnetic materials, which leads to the alignment of the moments in small spatial areas, the so-called Weißes districts, which are separated by transition layers called Bloch walls , it is now possible through e.g. B. mechanical stretching of a ferromagnetic wire to permanently form a single domain of uniform magnetization direction. If such a domain is brought into an external magnetic field of a certain size and direction, then this domain does not fold over as a whole, but its elementary magnets fold in from a certain starting position - preferably a wire end - like a domino Direction of the external magnetic field. This leads to a flip-over wave of finite speed in the ferromagnetic element, which, however, is large compared to the speed of the exciting magnet, so that one can speak of a "sudden flip-over" of this domain.
Unter Ausnutzung der vorstehend geschilderten physikalischen Zusammenhänge ist die eingangs genannte Aufgabe für einen mindestens einen Erregermagneten aufweisenden Positionsdetektor der hier in Frage stehenden Art erfindungsgemäß gelöst mit einem einzigen ferromagnetischen Element mit mindestens einer Induktionsspule und mit mindestens einem zusätzlichen Sensorelement zur Ermittlung von Informationen über die Polarität und die Position des Erregermagneten, wobei diese zum Zeitpunkt der Auslösung des einen ferromagnetischen Elementes als vollständige Informationen zur Bestimmung der Bewegungsrichtung des Erregermagneten zur Verfügung stehen.Taking advantage of the above physical relationships is the task mentioned at the beginning for at least one excitation magnet Having position detector of the type in question here solved according to the invention with a single ferromagnetic element with at least one induction coil and with at least one additional one Sensor element for determining information about the polarity and the position of the excitation magnet, this at the time of triggering the a ferromagnetic element as complete information for the determination the direction of movement of the excitation magnet are available.
Der Effekt der über das ferromagnetische Element laufenden Blochwand wird bei einer besonders einfachen Variante der Erfindung in der Weise benutzt, dass die Ermittlung der Position des Erregermagneten mittels Be stimmung der Auslöserichtung der von beiden Stirnseiten aus initiierbaren Ummagnetisierung des ferromagnetischen Elementes erfolgt.The effect of the ferromagnetic element running Blochwand is a particularly simple variant The invention used in such a way that the determination of the position of the excitation magnet by determining the triggering direction from both ends from initiatable remagnetization of the ferromagnetic element he follows.
Die Auslöserichtung der Ummagnetisierung darf hierbei aber nicht verwechselt werden mit der Richtung der Ummagnetisierung selbst, die dadurch beschrieben wird, von welchem Magnetpol zu welchem Magnetpol die Weißschen Bezirke "umklappen". Die Richtung der Ummagnetisierung führt im vorliegenden Falle zur Polarität des auslösenden Poles des Erregermagneten.The direction of release of the magnetic reversal may but not to be confused with the direction of the magnetic reversal itself, which is described by which magnetic pole to which Magnetic pole the white ones "Fold down" districts. The direction of the reversal leads in the present Trap to polarity the triggering Pole of the excitation magnet.
Die kinetische Energie der in Form einer fortlaufenden Welle in Richtung des äußeren Feldes umklappenden Elementarmagnete ist groß genug, um aus der dem ferromagnetischen Element zugeordneten Spule nicht nur elektrische Energie für einen Signalimpuls, sondern auch für eine Zählelektronik und eine Hall-Sonde zu entnehmen.The kinetic energy of the form a continuous wave in the direction of the outer field flipping elementary magnets is big enough not from the coil assigned to the ferromagnetic element only electrical energy for a signal pulse, but also for counter electronics and a Hall probe refer to.
Ist die aktuelle Position und Polarität des Erregermagneten EM gegeben und setzt man diese in Relation zu seiner letzten abgespeicherten Position und Polarität, dann besitzt man vollständige Informationen zur Ermittlung der Bewegungsrichtung des Erregermagneten EM und der mit diesem fest verbundenen Drehwelle.Is the current position and polarity of the excitation magnet EM given and you put this in relation to its last saved Position and polarity, then you have complete Information to determine the direction of movement of the excitation magnet EM and the rotary shaft firmly connected to it.
Zum besseren Verständnis der Erfindung sei nachfolgend diese am Beispiel eines Umdrehungszählers erläutert.To better understand the Invention is explained below using the example of a revolution counter.
Im allgemeinen Fall, der gekennzeichnet ist durch einen Erregermagneten und der Auflösung von ½ Umdrehung, ist das Umdrehungszählersystem durch vier kombinierbare Erregermagnetgrundzustände in Verbindung mit seinen letz ten abgespeicherten Daten vollständig beschrieben, nämlich
- Z1.) Nordpol rechts von der Bezugslinie
- Z2.) Nordpol links von der Bezugslinie
- Z3.) Südpol rechts von der Bezugslinie
- Z4.) Südpol links von der Bezugslinie
- Z1.) North Pole to the right of the reference line
- Z2.) North Pole to the left of the reference line
- Z3.) South Pole to the right of the reference line
- Z4.) South Pole to the left of the reference line
Bei der erfindungsgemäßen Verwendung von nur einem Impulsdraht und einer Induktionsspule führen diese vier Zustände je nach Verwendung der Auslöserichtung der Ummagnetisierung zu drei Zweiergruppen von kombinierten Zuständen:
- 1.) Gruppe: Beide Auslöserichtungen der Ummagnetisierung
sind definiert; siehe
1 ,2 und3 . - a.) Nordpol rechts oder Südpol links von der Bezugslinie L (Z1 oder Z4)
- b.) Nordpol links oder Südpol rechts von der Bezugslinie L (Z2 oder Z3)
- 1.) Group: Both directions of triggering the magnetic reversal are defined; please refer
1 .2 and3 , - a.) North pole on the right or south pole on the left of the reference line L (Z1 or Z4)
- b.) North pole on the left or south pole on the right of the reference line L (Z2 or Z3)
Hier ist die Position des Erregermagneten EM durch die Messung der Auslöserichtung der Ummagnetisierung mittels des zusätzlichen Sensorelementes, z. B, einer zweiten Induktionsspule oder einer Hall-Sonde, bestimmbar. Mit einer zweiten Spule SP2 über dem ferromagnetischen Element FE erfolgt dies direkt, durch eine Hall-Sonde HS indirekt. Bei der Verwendung einer Hall-Sonde HS spielt dabei nicht die von dieser erkannte Polarität des Erregermagneten EM eine Rolle, sondern lediglich die Tatsache, ob sie angeregt wird oder nicht. Die Po larität des Erregermagneten EM kann dann immer durch Messen der Ummagnetisierungsrichtung mittels der Induktionsspule SP1 oder SP des ferromagnetischen Elementes FE aus der Polarität der Spannungsimpulse bestimmt werden.
- 2.) Gruppe
Nur eine Auslöserichtung
der Ummagnetisierung ist definiert; siehe
4 . - a.) Nordpol rechts oder Nordpol links der Bezugslinie L (Z1 oder Z2)
- b.) Südpol rechts oder Südpol links der Bezugslinie L (Z3 oder Z4)
- 2.) Group Only one direction of magnetic reversal is defined; please refer
4 , - a.) North pole right or north pole left of the reference line L (Z1 or Z2)
- b.) South pole on the right or south pole on the left of the reference line L (Z3 or Z4)
In diesem Fall ist die Position des Erregermagneten EM immer direkt durch die Hall-Sonde gegeben, indem diese angeregt wird oder nicht. Die Polarität des Erregermagneten EM kann unabhängig davon mittels der Induktionsspule SP durch Messung der Ummagnetisierungsrichtung bestimmt werden.
- 3.) Gruppe Auslöserichtung
der Ummagnetisierung ist nicht definiert; siehe
5 . - a.) Nordpol rechts von der Bezugslinie L oben oder Südpol rechts von der Bezugslinie L unten (Z1 oder Z2)
- b.) Nordpol rechts von der Bezugslinie L unten oder Südpol rechts von der Bezugslinie L oben (Z4 oder Z3)
- 3.) The triggering direction of the magnetic reversal is not defined; please refer
5 , - a.) North pole to the right of the reference line L above or south pole to the right of the reference line L below (Z1 or Z2)
- b.) North pole to the right of the reference line L below or south pole to the right of the reference line L above (Z4 or Z3)
Je nach Anordnung der Hall-Sonde
HS rechts (wie in
Alle Lösungen sind mathematisch äquivalent und technologisch gleichwertig.All solutions are mathematically equivalent and technologically equivalent.
Durch die vorstehend erläuterten erfinderischen Maßnahmen ist ein Positionsdetektor mit denkbar einfachstem mechanischem Aufbau realisierbar, der auch bei Geschwindigkeiten gegen Null und Ausfall der regulären Stromversorgung mit nur einem einzigen ferromagnetischen Element in beiden Bewegungsrichtungen des Erregermagneten einwandfrei arbeitet. Beachtenswert ist hierbei, dass zum Zeitpunkt Ts der Auslösung des ferromagnetischen Elementes FE die vollständigen Informationen zur Ermittlung der Polarität und Bewegungsrichtung des Erregermagneten EM zur Verfügung stehen, also neben den abgespeicherten Informationen alle notwendigen Signale an den Ausgangsklemmen der betreffenden Induktionsspulen und/oder der Hall-Sonde. Diese Tatsache als Forderung erzwingt, dass das ferromagnetische Element FE, die Hall-Sonde HS und der Erregermagnet EM bzw. die Erregermagnete in einer ganz bestimmten räumlichen Konstellation zueinander stehen müssen, z. B. an einem Ort.Through the above inventive measures is a position detector with the simplest possible mechanical design feasible, even at speeds close to zero and failure the regular Power supply with only a single ferromagnetic element works perfectly in both directions of movement of the excitation magnet. It is noteworthy here that at the time Ts the triggering of the ferromagnetic element FE the complete information for the determination the polarity and direction of movement of the excitation magnet EM are available, in addition to the stored information, all the necessary signals at the output terminals of the induction coils concerned and / or the Hall probe. This fact as a requirement enforces that the ferromagnetic Element FE, the Hall probe HS and the excitation magnet EM and the Excitation magnets in a very specific spatial constellation to each other have to stand z. B. in one place.
Die optimal vereinfachte Gestaltung des Positionsdetektors ermöglicht es auch, den Ausgangssignalen der Sensorspule SP bzw. -spulen SP1; SP2 gleichzeitig die Energie für die Auswerteelektronik zu entnehmen, welche zumindest eine Zählvorrichtung, einen nichtflüchtigen Speicher und einen Kondensator umfasst.The optimally simplified design of the position detector it, the output signals of the sensor coil SP or coils SP1; SP2 also the energy for remove the evaluation electronics, which have at least one counting device, one nonvolatile Includes memory and a capacitor.
Weitere Merkmale der Erfindung ergeben sich aus den Unteransprüchen.Further features of the invention result from the subclaims.
Die Erfindung ist nachfolgend anhand von fünf in der Zeichnung mehr oder minder schematisch dargestellter Ausführungsbeispiele beschrieben.The invention is based on of five more or less schematically illustrated embodiments in the drawing described.
Es zeigen:Show it:
Bei der in
Das parallel zur Bewegungsrichtung
des Erregermagneten ausgerichtete ferromagnetische Element FE ist
von zwei Sensorspulen SP1 und SP2 umgeben, an deren Ausgangsklemmen
In der Ausführungsform nach
Unterschiedlich zu
Die zum Zeitpunkt Ts zur Verfügung stehenden vollständigen Informationen zur Ermittlung der Polarität und Bewegungsrichtung des Erregermagneten bestehen daher aus den Daten im nichtflüchtigen Speicher mit den Signalen an den Ausgangsklemmen der Induktionspulen oder mit den Signalen an den Ausgangsklemmen der Induktionsspule und den Ausgangsklemmen der Hall-Sonde.The available at time Ts complete Information to determine the polarity and direction of movement of the Excitation magnets therefore consist of the data in the non-volatile Memory with the signals at the output terminals of the induction coils or with the signals at the output terminals of the induction coil and the output terminals of the Hall probe.
Die Ausführungsform des Positionsdetektors nach
Die Ausführungsform des Positionsdetektors nach
Die Ausführungsform des Positionsdetektors nach
Den Positionsdetektoren gemäß
Die Energieversorgung für die Auswerteelektronik erfolgt in der Regel aus den Signalen der Induktionsspulen SP, SP1 und SP2. Wenn nur eine Induktionsspule SP verwendet wird, dann erfolgt die Energieversorgung der Hall-Sonde ebenfalls durch diese Spule.The energy supply for the evaluation electronics usually takes place from the signals of the induction coils SP, SP1 and SP2. If only one induction coil SP is used, then it is done the energy supply of the Hall probe also through this coil.
Die Leitungsverbindung
Allen vorstehend beschriebenen Ausführungsbeispielen
gemeinsam ist, dass Drehung und/oder Drehrichtung der Welle
Wesentlich ist auch hier, dass die Informationen über die Auslöserichtung der Ummagnetisierung des ferromagnetischen Elementes, des auslösenden Poles des Erregermagneten EM und dessen gespeicherte letzte Polarität und Position in Bezug auf die sich drehende Welle zum Zeitpunkt Ts der Auslösung des ferromagnetischen Elementes, also gleichzeitig im Rahmen der Ansprechzeiten der verwendeten Elemente, verfügbar sind.It is also important here that the information about the triggering direction of the magnetic reversal of the ferromagnetic element, the triggering pole of the excitation magnet EM and its stored last polarity and position in relation to the rotating shaft at the time Ts of the triggering of the ferromagnetic element, i.e. simultaneously in the frame the response times of the used Items that are available.
Der Kondensator c in der Auswerteelektronik ist vorgesehen für die Speicherung der aus dem Signalimpuls gewonnenen Versorgungsenergie zumindest solange, bis die Auswertung des Signals und der Abspeichervorgang des Zählerwertes in den nichtflüchtigen Speicher abgeschlossen ist.The capacitor c is in the evaluation electronics reserved for the storage of the supply energy obtained from the signal pulse at least until the evaluation of the signal and the storage process of the counter value in the non-volatile Memory is complete.
Als ferromagnetische Elemente können anstelle von Impulsdrähten oder Wieganddrähten auch andere Elemente verwendet werden, wenn die Bedingungen für das "schlagartige Umklappen" der Weißschen Bezirke gegeben sind.As ferromagnetic elements can instead of impulse wires or Wiegand wires other items can also be used if the conditions for the "sudden Folding down "the white ones Districts are given.
Um Missverständnisse zu vermeiden sei darauf hingewiesen, dass das ferromagnetische Element FE dadurch cha rakterisiert ist, dass es – unter Vernachlässigung von Streufeldern – nur einen magnetischen Eingang und einen magnetischen Ausgang hat. Damit ist zwar denkbar, dass es zwischen Eingang und Ausgang beliebig unterbrochen sein kann, doch wird der erfinderische Gedanke eines einzigen Elementes dadurch nicht verlassen.To avoid misunderstandings be on it pointed out that the ferromagnetic element FE characterized thereby is that it - neglecting of stray fields - only has a magnetic input and a magnetic output. In order to it is conceivable that there is arbitrary between input and output may be interrupted, but the inventive idea becomes one do not leave a single element.
Für
die Bestimmung der Polarität
oder Position des Erregermagneten können anstelle von Hall-Sensoren
auch andere Sensoren wie z. B. Feldplatten eingesetzt werden. Ferner
ist es möglich,
den Erregermagneten so zu präparieren,
dass seine Position und/oder Polarität anstelle durch die Hall-Sonde
mit Hilfe einer kapazitiven Messung bestimmt werden kann. Darüber hinaus
ist der Einsatz des vorstehend beschriebenen Positionsdetektors
in Verbindung mit einem Feindrehwinkelsensor in der Form eines so
genannten Multiturns möglich,
wie dies z. B. in der
- 1010
- Wellewave
- 1414
- EndeThe End
- 1515
- EndeThe End
- 1616
- EndeThe End
- 1717
- EndeThe End
- 2222
- Ausgangsklemmeoutput terminal
- 2323
- Ausgangsklemmeoutput terminal
- 2424
- Ausgangsklemmeoutput terminal
- 3030
- Auswerteelektronikevaluation
- 3232
- Eingangsklemmeinput terminal
- 3333
- Eingangsklemmeinput terminal
- 3434
- Erkennungslogikrecognition logic
- 3535
- Erkennungslogikrecognition logic
- 3636
- nichtflüchtiger Speichernonvolatile Storage
- 3838
- Zählercounter
- 3939
- Abgriffetaps
- 4040
- Schnittstelleinterface
- 4141
- Leitungsverbindungline connection
- 4242
- Leitungmanagement
- αα
- Auslösewinkelrelease angle
- CC
- Kondensatorcapacitor
- DD
- Gleichrichterrectifier
- EMEM
- Erregermagnetexciter magnet
- EM1EM1
- Erregermagnetexciter magnet
- EM2EM2
- Erregermagnetexciter magnet
- EM3EM3
- Erregermagnetexciter magnet
- EM4EM4
- Erregermagnetexciter magnet
- FEFE
- ferromagnetisches Elementferromagnetic element
- FL1FL1
- Flussleitstückflux conductor
- FL2FL2
- Flussleitstückflux conductor
- HSHS
- HallsondeHall probe
- LL
- Bezugsliniereference line
- NN
- NordpolNorth Pole
- R1R1
- Pfeilarrow
- R2R2
- Pfeilarrow
- SS
- SüdpolSouth Pole
- SPSP
- Sensorspulesensor coil
- SP1SP1
- Sensorspulesensor coil
- SP2SP2
- Sensorspulesensor coil
- SESE
- Zusätzliches Sensorelementextra sensor element
- Tsts
- Zeitpunkt der Auslösung des ferromagnetischen Elementes FEtime the trigger of the ferromagnetic element FE
- Z1Z1
- ErregermagnetgrundzustandExciter magnet ground state
- Z2Z2
- ErregermagnetgrundzustandExciter magnet ground state
- Z3Z3
- ErregermagnetgrundzustandExciter magnet ground state
- Z4Z4
- ErregermagnetgrundzustandExciter magnet ground state
Claims (11)
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10259223A DE10259223B3 (en) | 2002-11-20 | 2002-12-17 | Position detector registering rotary- or linear motion, includes excitation magnet, ferromagnetic component, coil and sensor |
JP2004552653A JP4712390B2 (en) | 2002-11-20 | 2003-11-19 | Position detector |
AT03795827T ATE466287T1 (en) | 2002-11-20 | 2003-11-19 | POSITION DETECTOR |
ES03795827T ES2341539T3 (en) | 2002-11-20 | 2003-11-19 | POSITION DETECTOR. |
DE50312672T DE50312672D1 (en) | 2002-11-20 | 2003-11-19 | POSITION DETECTOR |
EP03795827.9A EP1565755B2 (en) | 2002-11-20 | 2003-11-19 | Position detector |
PCT/EP2003/012938 WO2004046735A1 (en) | 2002-11-20 | 2003-11-19 | Position detector |
AU2003298124A AU2003298124A1 (en) | 2002-11-20 | 2003-11-19 | Position detector |
US10/534,396 US7598733B2 (en) | 2002-11-20 | 2003-11-19 | Position detector |
CA2506408A CA2506408C (en) | 2002-11-20 | 2003-11-19 | Position detector |
IL168712A IL168712A (en) | 2002-11-20 | 2005-05-19 | Position detector |
JP2010248766A JP2011059130A (en) | 2002-11-20 | 2010-11-05 | Position detector |
Applications Claiming Priority (3)
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DE10254231 | 2002-11-20 | ||
DE10254231.7 | 2002-11-20 | ||
DE10259223A DE10259223B3 (en) | 2002-11-20 | 2002-12-17 | Position detector registering rotary- or linear motion, includes excitation magnet, ferromagnetic component, coil and sensor |
Publications (1)
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DE10259223B3 true DE10259223B3 (en) | 2004-02-12 |
Family
ID=30128886
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DE10259223A Expired - Lifetime DE10259223B3 (en) | 2002-11-20 | 2002-12-17 | Position detector registering rotary- or linear motion, includes excitation magnet, ferromagnetic component, coil and sensor |
DE50312672T Expired - Lifetime DE50312672D1 (en) | 2002-11-20 | 2003-11-19 | POSITION DETECTOR |
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DE50312672T Expired - Lifetime DE50312672D1 (en) | 2002-11-20 | 2003-11-19 | POSITION DETECTOR |
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JP (2) | JP4712390B2 (en) |
CN (1) | CN100468059C (en) |
AT (1) | ATE466287T1 (en) |
DE (2) | DE10259223B3 (en) |
ES (1) | ES2341539T3 (en) |
IL (1) | IL168712A (en) |
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DE102004013022B3 (en) * | 2004-03-16 | 2005-10-13 | Sew-Eurodrive Gmbh & Co. Kg | Electric motor has section counter, which features a stationary and a moving part for a stable drive |
EP1607720A2 (en) * | 2004-06-18 | 2005-12-21 | Valeo Schalter und Sensoren GmbH | Steering angle sensor |
DE102005035571A1 (en) * | 2005-07-29 | 2007-02-01 | Leopold Kostal Gmbh & Co. Kg | Steering angle measuring arrangement for motor vehicle, has set of permanent magnets that are movable relative to sensor consisting of induction coil, where coil is supplied with testing current and test signals are induced in another coil |
DE102006017865A1 (en) * | 2006-04-13 | 2007-10-18 | Sick Stegmann Gmbh | Measuring object absolute position measuring device, has sensor head with sampling unit reading absolute coding of partitions of solid measure and sensor that detects permanent magnetic markings |
DE102006038268A1 (en) * | 2006-08-09 | 2008-02-14 | Takata-Petri Ag | Device for contactless detection of rotation angle changes, multiple revolutions, especially for steering angle sensors, has two coils spatially offset on stator for definite separation and evaluation of antenna signals for rapid rotation |
WO2009024119A2 (en) | 2007-08-17 | 2009-02-26 | Walter Mehnert | Linear segment or revolution counter with a ferromagnetic element |
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EP2159547A2 (en) | 2008-08-30 | 2010-03-03 | Walter Mehnert | Sensor component for a rotary encoder and rotary encoder equipped with such a sensor component |
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WO2013013854A1 (en) * | 2011-07-22 | 2013-01-31 | Robert Bosch Gmbh | Magnetic sensor for measuring a magnetic field of a magnetic multipole and corresponding device for determining motion parameters |
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DE102004013022B3 (en) * | 2004-03-16 | 2005-10-13 | Sew-Eurodrive Gmbh & Co. Kg | Electric motor has section counter, which features a stationary and a moving part for a stable drive |
EP1607720A2 (en) * | 2004-06-18 | 2005-12-21 | Valeo Schalter und Sensoren GmbH | Steering angle sensor |
EP1607720A3 (en) * | 2004-06-18 | 2006-06-07 | Valeo Schalter und Sensoren GmbH | Steering angle sensor |
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DE102006017865B4 (en) * | 2006-04-13 | 2012-04-12 | Sick Stegmann Gmbh | Device for measuring the absolute position of a test object |
DE102006017865A1 (en) * | 2006-04-13 | 2007-10-18 | Sick Stegmann Gmbh | Measuring object absolute position measuring device, has sensor head with sampling unit reading absolute coding of partitions of solid measure and sensor that detects permanent magnetic markings |
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US8655615B2 (en) | 2007-08-17 | 2014-02-18 | Walter Mehnert | Absolute high resolution segment or revolution counter |
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WO2009024119A2 (en) | 2007-08-17 | 2009-02-26 | Walter Mehnert | Linear segment or revolution counter with a ferromagnetic element |
US8766625B2 (en) | 2007-08-17 | 2014-07-01 | Walter Mehnert | Linear segment or revolution counter with a ferromagnetic element |
US9200925B2 (en) | 2007-08-17 | 2015-12-01 | Walter Mehnert | Absolute high resolution segment or revolution counter |
DE102007039050B4 (en) | 2007-08-17 | 2023-08-31 | Avago Technologies International Sales Pte. Limited | Linear segment or revolution counter with a ferromagnetic element |
WO2009024120A2 (en) | 2007-08-17 | 2009-02-26 | Walter Mehnert | Absolute high resolution segment or revolution counter |
DE102007039051B8 (en) | 2007-08-17 | 2023-09-28 | Avago Technologies International Sales Pte. Limited | Absolute fine-resolution segment or revolution counter |
DE102007039050B8 (en) | 2007-08-17 | 2024-02-15 | Avago Technologies International Sales Pte. Limited | Linear segment or revolution counter with a ferromagnetic element |
EP2159547A2 (en) | 2008-08-30 | 2010-03-03 | Walter Mehnert | Sensor component for a rotary encoder and rotary encoder equipped with such a sensor component |
DE102008051479A1 (en) | 2008-08-30 | 2010-03-04 | Mehnert, Walter, Dr. | Sensor component for use in rotary encoder, has electronic circuit storing count value, and drive shaft whose instantaneous angular position is calculated with respect to gear transmission ratio of gear |
EP2221587A2 (en) | 2009-02-24 | 2010-08-25 | Walter Dr. Mehnert | Absolute magnetic positioner |
WO2011124348A1 (en) | 2010-03-30 | 2011-10-13 | Walter Mehnert | Magnetic rotary encoder |
DE102010022154A1 (en) | 2010-03-30 | 2011-10-06 | Walter Mehnert | Magnetic shaft encoder |
DE102010022154B4 (en) * | 2010-03-30 | 2017-08-03 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Magnetic shaft encoder |
US9448088B2 (en) | 2010-03-30 | 2016-09-20 | Walter Mehnert | Magnetic rotary encoder |
WO2013013854A1 (en) * | 2011-07-22 | 2013-01-31 | Robert Bosch Gmbh | Magnetic sensor for measuring a magnetic field of a magnetic multipole and corresponding device for determining motion parameters |
EP2844955B1 (en) | 2012-04-30 | 2016-05-11 | Fritz Kübler GmbH Zähl-und Sensortechnik | Energy-autonomous multiple turn rotation sensor and method of determining an unambiguous position of a drive shaft with the multiple turn rotation sensor |
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US9803996B2 (en) | 2012-06-28 | 2017-10-31 | Sew-Eurodrive Gmbh & Co. Kg | System for ascertaining the number of revolutions of a rotationally mounted shaft, and method for ascertaining the number of revolutions of a rotationally mounted shaft |
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WO2017174099A1 (en) | 2016-04-08 | 2017-10-12 | Thomas Theil | Wiegand wire arrangement and method for the production thereof |
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EP3857180A4 (en) * | 2018-09-30 | 2022-06-22 | Natural Gas Solutions North America, LLC | Maintaining redundant data on a gas meter |
Also Published As
Publication number | Publication date |
---|---|
JP2011059130A (en) | 2011-03-24 |
IL168712A (en) | 2010-11-30 |
CN100468059C (en) | 2009-03-11 |
DE50312672D1 (en) | 2010-06-10 |
JP2006523822A (en) | 2006-10-19 |
ES2341539T3 (en) | 2010-06-22 |
JP4712390B2 (en) | 2011-06-29 |
CN1739031A (en) | 2006-02-22 |
ATE466287T1 (en) | 2010-05-15 |
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