DE3340129A1 - Switching apparatus - Google Patents

Switching apparatus

Info

Publication number
DE3340129A1
DE3340129A1 DE19833340129 DE3340129A DE3340129A1 DE 3340129 A1 DE3340129 A1 DE 3340129A1 DE 19833340129 DE19833340129 DE 19833340129 DE 3340129 A DE3340129 A DE 3340129A DE 3340129 A1 DE3340129 A1 DE 3340129A1
Authority
DE
Germany
Prior art keywords
wiegand wire
rotor
pole pairs
axis
wire
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.)
Withdrawn
Application number
DE19833340129
Other languages
German (de)
Inventor
Karin Dipl.-Phys. 7000 Stuttgart Bethge
Peter 8540 Schwabach Weltle
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19833340129 priority Critical patent/DE3340129A1/en
Publication of DE3340129A1 publication Critical patent/DE3340129A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01D5/2013—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 by a movable ferromagnetic element, e.g. a core
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
    • F02P7/0672—Electromagnetic pick-up devices, e.g. providing induced current in a coil using Wiegand effect
    • 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
    • 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
    • G01P3/487—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 delivered by rotating magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/002—Generators
    • H02N11/004—Generators adapted for producing a desired non-sinusoidal waveform

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

A switching apparatus is proposed having at least one Wiegand wire (12) mounted on a stator (10) and at least two permanent-magnet pole pairs (16), which are mounted on a rotor (15) and are moved past the Wiegand wire (12) when the rotor (15) rotates, and in each case produce an electrical pulse, which is used as a control pulse, in a receiving coil (13) which encloses the Wiegand wire (12). The axis of the Wiegand wire (12) is in this case arranged in a plane running at right angles to the rotor shaft, and the axes of the permanent-magnet pole pairs (16) are arranged in a plane running parallel to this plane, these two planes being closely adjacent. The axes of the Wiegand wire (12) and of the permanent-magnet pole pairs (16) project radially from the rotor axis. <IMAGE>

Description

Schalt gerätSwitching device

Stand der Technik Die Erfindung betrifft ein Schaltgerät nach der Gattung des Hauptanspruchs.PRIOR ART The invention relates to a switching device according to Genre of the main claim.

Aus der DE-OS 31 40 302, Figuren 3a und b, ist bereits ein Schaltgerät dieser Art bekannt, bei dem die dauermagnetischen Polpaare auf dem Umfang des Rotors derart verteilt sind, daß ihre Achsen jeweils tangentie zu diesem Umfang verlaufen.From DE-OS 31 40 302, Figures 3a and b, a switching device is already known of this type, in which the permanent magnetic pole pairs on the circumference of the rotor are distributed in such a way that their axes are tangent to this circumference.

Der Wieganddraht befindet sic dabei auf dem Stator au3erhalb des Rotorumfangs. Dieses bekannte Schaltgerät hat den Nachteil, daß es in der Richtung senkrecht zur Rotorachse zu viel Raum beansprucht, was sich insbesondere dann nacnteilig auswirkt, wenn das Schaltgerät als Steuergerät für die elektroni s ohe Zündung verwendet wird.The Wiegand wire is located on the stator outside the rotor circumference. This known switching device has the disadvantage that it is in the direction perpendicular to The rotor axis takes up too much space, which has a negative effect in particular, if the switching device is used as a control device for the electronic ignition.

Vorteile der Erfindung Das erfindungsgemäße Schaltgerät mit den kennzeichnenden Merkmalen des Hauptanscruchs hat demgegenüber den Vorteil, daß es in Richtung senkrecht zur Rotorachse besonders wenig Raum beansprucht, es nsbe sondere oei der Verwendung nach den Unteransprüchen 5 und C vorteilhaft ist. Anspruch 2 bietet den weiteren Vorteil, daß der radial von der Statorachse abstehende Wieganddraht dieselbe Signalspannung abgibt, wenn seine Länge etwa auf ein Drittel reduziert wird, so daß der Wieganddraht in radialer Richtung nur sehr wenig Raum beansprucht, was insbesondere bei der Verwendung nach den Unteransprüchen 5 und 6 sich günstig auswirkt. Weitere Vorteile ergeben sich aus den weiteren t.nteransprüchen 3 und 4.Advantages of the invention The switching device according to the invention with the characterizing Features of the main claim has the advantage that it is perpendicular in the direction takes up very little space to the rotor axis, it nsbe special oei the use after the dependent claims 5 and C is advantageous. Claim 2 offers the further advantage that the Wiegand wire protruding radially from the stator axis has the same signal voltage releases when its length is reduced to about a third, so that the Wiegand wire takes up very little space in the radial direction, which is particularly important when using according to the dependent claims 5 and 6 has a favorable effect. Further advantages result from the further subclaims 3 and 4.

Zeichnung Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen: Figur 1a den Schnitt durch einen Magnetzünder senkrecht zur Achse des Magnetzünder-Polrades in der Ebene, in der der Wieganddraht angeordnet ist, Figur 1b eine Draufsicht auf das Magnetzünder-Polrad, Figur 2 den Wieganddraht sit der Sensorspule und den beiden Leitblechen in der Seitenansicht im Maßstab 5 : 1, Figur 3 einen Schnitt durch einen Magne-zünder senkrecht zur Achse des Magn-tzünder-Polrades, der die Anordnung der Aufnahmespule relativ zu den dauermagne-tischen Polpaaren in einem Augenblick zeigt, in dem die Spule auf Lacke wis hen zwei einander benachbarten Polpaaren steht.Drawing An embodiment of the invention is shown in the drawing and explained in more detail in the following description. They show: figure 1a shows the section through a magneto perpendicular to the axis of the magneto pole wheel in the plane in which the Wiegand wire is arranged, FIG. 1b shows a plan view the magneto magnet wheel, Figure 2 the Wiegand wire sit the sensor coil and the two Guide plates in a side view on a scale of 5: 1, Figure 3 shows a section through a Magnetic igniter perpendicular to the axis of the magnetic igniter pole wheel, which is the arrangement of the Shows the pick-up coil relative to the permanent magnet pole pairs in an instant, in which the coil is on lacquer with two adjacent pairs of poles.

Beschreibung der Erfindung Figur 1a zeigt einen Schnitt durch das Gehäuse 10 eines Magnetzünders, das als Stator des erfindungsgemäßen Schaltgeräts dient. Der Schnitt ist so beführt, daß er die Achse des Magnetzünders-Polrades 15 (Figur 1b) senkrecht schneidet. Am Gehäuse 10 Ist das aus dem Wieganddraht 12, der Aufnahmespule 13 und den beinen Polleitblechen 14 bestehende System befestigt, das in Figur 2 vergrößert dargestellt ist. Die Achse des Wieganddrahtes 12 steht dabei 7nn der Achse des Magnetzünder-Polrades 15 (Figur 1 b) radial ab. Die Aufnahmespule 13 umschließt den Wieganddraht 12 über seinen Mittelabschnitt, der den größten Teil seiner Länge ausmacht. An seinen beiden Endabschnitten wird der Wieganddraht 12 von je einen Polleitblech 14 umschlossen, wobei sich die beiden Polleitbleche 14 unmittelbar an die Aufnahmespule 13 anschließen.Description of the invention Figure 1a shows a section through the Housing 10 of a magneto, which is used as the stator of the switching device according to the invention serves. The cut is made in such a way that it is the axis of the magneto pole wheel 15 (Figure 1b) cuts vertically. On the housing 10 is that from the Wiegand wire 12, the Pick-up coil 13 and the legs Polleitblechen 14 attached existing system that is shown enlarged in Figure 2. The axis of the Wiegand wire 12 is here 7nn radially from the axis of the magneto-magneto wheel 15 (FIG. 1 b). The take-up reel 13 encloses the Wiegand wire 12 over its middle section, which is the largest part its length. The Wiegand wire 12 is at its two end sections each enclosed by a pole baffle 14, the two pole baffles 14 connect directly to the take-up reel 13.

Figur 1b zeigt eine Draufsicht auf das Magnetzünder-Polrad 15, das den Rotor des erfindungsgemäßen Schaltgerätes bildet. An einer am Magnetzünder-Polrad 15 angeschraubten Trägerscheibe 15a ist eine Vielzahl dauermagnetischer Polpaare 16 befestigt, von denen in Figur ib nur zwei gezeichnet sind, die einander unmittelbar benachbart liegen. Die Achsen der dauermagneti-chen Polpaare 16 sind labei so orientiert, daß sie von der Achse des Magnetzünder-Polrades 15 radial abstehen.Figure 1b shows a plan view of the magneto magnet wheel 15, the forms the rotor of the switching device according to the invention. On one on the magneto pole wheel 15 screwed on carrier disk 15a is a plurality of permanent magnetic pole pairs 16 attached, of which only two are drawn in Figure ib, which are directly related to each other lie adjacent. The axes of the permanent magnet pole pairs 16 are oriented so that that they protrude radially from the axis of the magneto magnet wheel 15.

Wie Figur 3 zeigt, werden beim Drehen des Magnetzünder-Polrades 15 relativ zum Gehäuse 10 die dauermagnetischen Polpaare 16 an dem Wieganidraht 12 vorbeibewegt. Da die dauermagnetischen Polpaare 16 abwechselnd entgegengesetzt zueinander orientiert sind, erzeugen sie am Ort des Wieganddrahtes 12 ein in seiner Stärke und Richtung wechselndes Magnetfeld, das bewirkt, daß der Wieganddraht 12 seine Polarisationsrichtung bei jeder Umdrehung des Polrades 15 entsprechend der Anzahl der vorhandenen Polpaare 16 sprunghaft umkehrt. Dabei werden in der den Draht umgebenden Aufnahmespule 13 so viel elektrische Impulse pro Umdrehung induziert, wie dauermagnetische Polpaare 16 vorhanden sind. Da diese an dem Wieganddraht 12 mit ständig wechselnder Orientierung vorbeibewegt erden müssen, muß eine gerade Anzahl von Polpaaren 16, mindestens aber zwei, vorhanden sein, die, wenn der zeitliche Abstand der Impulse konstant sein soll, in gleichen Wlnkelabständen zueinander auf dem Polrad 15 -angeordnet sein müssen.As FIG. 3 shows, when the magneto magnet wheel 15 relative to the housing 10, the permanent magnetic pole pairs 16 on the Wiegani wire 12 moved past. Since the permanent magnetic pole pairs 16 are alternately opposite to one another are oriented, they produce a strength at the location of the Wiegand wire 12 and direction changing magnetic field that causes Wiegand wire 12 to be Direction of polarization with each revolution of the pole wheel 15 according to the number the existing pole pairs 16 reverses abruptly. In doing so, the wire surrounding the Pick-up coil 13 induces as many electrical pulses per revolution as permanent magnetic ones Pole pairs 16 are present. Since this on the Wiegand wire 12 with constantly changing Orientation must be moved past, an even number of pole pairs must be 16, but at least two, be present, which, if the time interval between the pulses should be constant, arranged at equal angular distances from one another on the pole wheel 15 must be.

Aus Figur 3 ist ferner erkennbar, daß der Wieganddraht 12 und die dauermagnetischen Polpaare 16 minbestens annähernd denselben Abstand von der Achse des tIagnetzünder-Polrades 15 haben und an ihren beiden Enden etwas über den Wieganddraht 12 hinausragen, so daß in dem Augenblick, in dem gerade eines der Polpaare 16 in axialer Richtung mit dem Wieganddraht 12 fluchtet, die den Wieganddraht 12 durchsetzenden Feldlinien dieses Polpaares '5 genau in der Richtung der Achse des Wieganddrahtes 12 verlaufen. Die Feldstärke ist dabei um so größer, je näher das Polpaar 16 am Wieganddraht 12 liegt. Die Aüfnahmespule 13 mit Wieganddraht 12 und Leitblech 14 soll deshalb in möglichst geringem Abstand zu den dauermagnetischen Polpaaren 16 im Magnetzünder angeordnet sein, um eine möglichst hohe Signalspannung zu erzielen. Die Signalspannung ist jedoch auch bei einem großen Abstand noch so hoch, daß ein Thyristor direkt angesteuert und das Zündsystem gegenüber Störimpulsen weitgehend abgesichert werden kann.From Figure 3 it can also be seen that the Wiegand wire 12 and the permanent magnetic pole pairs 16 min at least approximately the same distance from the axis of the tIagnetzünder pole wheel 15 and at both ends something about the Wiegand wire 12 protrude so that at the moment in which one of the pole pairs 16 in axial direction with the Wiegand wire 12 is aligned, which penetrate the Wiegand wire 12 Field lines of this pole pair '5 exactly in the direction of the axis of the Wiegand wire 12 run. The field strength is greater, the closer the pair of poles 16 to the Wiegand wire 12 lies. The take-up spool 13 with Wiegand wire 12 and guide plate 14 should therefore be as close as possible to the permanent magnet Pole pairs 16 can be arranged in the magneto in order to achieve the highest possible signal voltage to achieve. However, the signal voltage is still the same even with a large distance high that a thyristor is controlled directly and the ignition system against interference pulses can be largely secured.

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Claims (6)

Ansprüche 1.Schaltgerät mit mindestens einem an einem Stator (io) gefestigten Wieganddraht (12) und mindestens zwei an einem Rotor ('5) befestigten dauermagnetischen Polpaaren (16), die bei Drehung des Rotors (15) an dem Wieganddraht 12) vorbeibewegt werden und in einer den Wieganddraht :12) umschließenden Aufnahmespule (13) jeweils einen als Steuerimpuis dienenden elektrischen Impuls erzeugen, wobei die Achse des T;ieganddrahts (12) zur Rotorachse senkrecht verläuft, dadurch gekennzeichnet, daß die Achsen der dauermagnetischen Polpaare (16) ebenfalls senkrecht zur Rotorachse verlaufen und in einer Ebene angeordnet sind, die zu derjenigen Ebene, in der sich der Wieganddraht (12) befindet, in Richtung der Rotorachse versetzt ist, und daß die dauermagnetischen Polpaare (16) und der Wieganddraht (12) zur Rotorachse etwa den gleichen Abstand haben.Claims 1. Switching device with at least one on a stator (io) solid Wiegand wire (12) and at least two attached to a rotor ('5) permanent magnetic pole pairs (16), which when the rotor (15) rotates on the Wiegand wire 12) are moved past and in a take-up spool surrounding the Wiegand wire: 12) (13) each generate an electrical pulse serving as a control pulse, wherein the axis of the T; iegand wire (12) runs perpendicular to the rotor axis, characterized in that that the axes of the permanent magnetic pole pairs (16) are also perpendicular to the rotor axis run and are arranged in a plane that corresponds to the plane in which the Wiegand wire (12) is located, is offset in the direction of the rotor axis, and that the permanent magnetic pole pairs (16) and the Wiegand wire (12) to the rotor axis for example have the same distance. 2. Schaltgerä nach Anspruch 1, dadurch ge:sennzeichnet, daß der Wieganddraht (12) an seinen Enden jeweils ein Polleitbiech 14) trägt.2. Schaltgerä according to claim 1, characterized in that the Wiegand wire (12) carries a Polleitbiech 14) at each of its ends. 3. Schaltgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die dauermagnetischen Polpaare (16) aus Plastoferrit bestehen.3. Switching device according to claim 1 or 2, characterized in that the permanent magnetic pole pairs (16) consist of plastoferrite. 4. Schaltgerät nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß das Polleitblech (14) aus Weicheisen besteht.4. Switching device according to claim 2 or 3, characterized in that the Polleitblech (14) consists of soft iron. 5. Verwendung des Schalt geräts nach einem der Ansprüche 1 bis 4 -als Steuergerät zum Steuern des Zündfunkens beim Magnetzünder.5. Use of the switching device according to one of claims 1 to 4 -as Control unit for controlling the ignition spark in the magneto. 6. Verwendung nach Anspruch 5, dadurch gekennzeichnet, daß als Stator (10) das Gehäuse des Magnetzünders und als Rotor (15) das Magnetzünder-Polrad dient.6. Use according to claim 5, characterized in that as a stator (10) the housing of the magneto and the magneto magnet wheel as the rotor (15).
DE19833340129 1983-11-05 1983-11-05 Switching apparatus Withdrawn DE3340129A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833340129 DE3340129A1 (en) 1983-11-05 1983-11-05 Switching apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833340129 DE3340129A1 (en) 1983-11-05 1983-11-05 Switching apparatus

Publications (1)

Publication Number Publication Date
DE3340129A1 true DE3340129A1 (en) 1985-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833340129 Withdrawn DE3340129A1 (en) 1983-11-05 1983-11-05 Switching apparatus

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619500A1 (en) * 1986-06-10 1987-12-17 Vacuumschmelze Gmbh Electromagnetic sensor for detecting the number of revolutions, the rotational speed and physical variables, to be derived therefrom, of a shaft
WO1995024613A1 (en) * 1994-03-07 1995-09-14 Asm Gmbh Angle of rotation sensor
GB2468379A (en) * 2009-02-17 2010-09-08 Goodrich Corp Non-contact sensor for detecting the discrete position of a rotary switch
DE102010010239A1 (en) * 2010-03-03 2011-09-08 Sew-Eurodrive Gmbh & Co. Kg Arrangement for detection of number of rotations of rotatably mounted parts relative to pulse wire sensor or wiegand wire sensor, has permanent magnet arrangement whose effective edge is aligned in angle positions parallel to pulse wire
US8393203B2 (en) 2010-03-08 2013-03-12 Goodrich Corporation Systems and methods for built in test equipment for a brake control system
US9086301B2 (en) 2009-02-17 2015-07-21 Goodrich Corporation Non-contact sensor system and method for displacement determination
DE102010064488B3 (en) 2010-03-03 2018-05-09 Sew-Eurodrive Gmbh & Co Kg Arrangement for detecting the number of revolutions of a rotatably mounted relative to a pulse wire sensor or Wieganddrahtsensor part

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619500A1 (en) * 1986-06-10 1987-12-17 Vacuumschmelze Gmbh Electromagnetic sensor for detecting the number of revolutions, the rotational speed and physical variables, to be derived therefrom, of a shaft
WO1995024613A1 (en) * 1994-03-07 1995-09-14 Asm Gmbh Angle of rotation sensor
GB2468379A (en) * 2009-02-17 2010-09-08 Goodrich Corp Non-contact sensor for detecting the discrete position of a rotary switch
US9086301B2 (en) 2009-02-17 2015-07-21 Goodrich Corporation Non-contact sensor system and method for displacement determination
GB2468379B (en) * 2009-02-17 2015-10-14 Goodrich Corp Non-contact sensor system and method for selection determination
DE102010010239A1 (en) * 2010-03-03 2011-09-08 Sew-Eurodrive Gmbh & Co. Kg Arrangement for detection of number of rotations of rotatably mounted parts relative to pulse wire sensor or wiegand wire sensor, has permanent magnet arrangement whose effective edge is aligned in angle positions parallel to pulse wire
DE102010010239B4 (en) * 2010-03-03 2012-12-27 Sew-Eurodrive Gmbh & Co. Kg Arrangement for detecting the number of revolutions of a rotatably mounted relative to a pulse wire sensor or Wieganddrahtsensor part
DE102010064488B3 (en) 2010-03-03 2018-05-09 Sew-Eurodrive Gmbh & Co Kg Arrangement for detecting the number of revolutions of a rotatably mounted relative to a pulse wire sensor or Wieganddrahtsensor part
US8393203B2 (en) 2010-03-08 2013-03-12 Goodrich Corporation Systems and methods for built in test equipment for a brake control system
US8683857B2 (en) 2010-03-08 2014-04-01 Goodrich Corporation Systems and methods for built in test equipment for a brake control system

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