DE102011121870B4 - The magnetic sensor system - Google Patents

Abstract

Magnetic sensor arrangement (2) for detecting axial movements and positions of a shaft (3), wherein the shaft (3) can additionally perform rotational movements within a rotation angle range of less than 360 °, comprising at least one sensor unit (4) and at least one on the shaft ( 3) arranged magnetic encoder unit (1), wherein the encoder unit (1) encloses an outer periphery of the shaft (3) partially, wherein the encoder unit (1) on the outer circumference of the shaft (3) is arranged and an extension of the encoder unit (1) in Circumferential direction of the shaft (3) is so large that at least in by the axial movement of the shaft (3) of these achievable axial extreme positions in each of the rotational movement of the shaft (3) resulting position, a region of the encoder unit (1) in a detection range the sensor unit (4) is located, characterized in that the transmitter unit (1) consists of two circular arc-shaped magnets (8) is formed, which in the axial direction of the shaft (3) are arranged one behind the other on the shaft (3), that in the axial extreme positions of the shaft (3) in each case a circular arc-shaped magnet (8) is positioned in the detection range of the sensor unit (4), wherein the circular arc-shaped magnets (8) opposite to each other are magnetically polarized.

Description

The invention relates to a magnetic sensor arrangement according to the features of the preamble of claim 1 and a use of a magnetic sensor arrangement according to the features of the preamble of claim 4

In the prior art gearboxes with a shaft are known, wherein the shaft executes during operation of the gearbox both relatively large axial movements and irregular rotational movements with a limited angular rotation interval. Ie. the rotational movements of the shaft are limited so that it can not make complete turns through 360 °, but can only turn back and forth within a smaller rotation angle range. For the path sensing of the axial movement of the shaft, a magnetic sensor arrangement is provided, which is formed from a hard magnetic encoder arranged on the shaft and a sensor element. The sensor element is designed as a Hall sensor or as a magnetoresistive sensor. In order to reliably detect their axial movements even when the shaft rotates, the displacement sensor is designed as a ring magnet which completely surrounds a circumference of the shaft.

The DE 197 48 115 A1 describes a magnetic sensor arrangement with at least two magnets which are arranged on the circumference of a switching member, wherein the magnets are each spaced from each other and cover the periphery of the switching member segmental, and Hall sensors, which adjoin the switching member, the Hall sensors each spaced from each other and for detection the magnetic field strengths of the magnets are aligned.

The DE 44 15 668 A1 describes a magnetic sensor arrangement for non-contact detection of certain positions of an axially displaceable and rotatable by a certain angle shaft using a magnetic displacement sensor whose output signal is dependent on a displaceable along an axial direction of the displacement sensor magnet, the displacement sensor with its effective for the movable magnet axial direction parallel to Longitudinal axis of the shaft is arranged and that the magnet for actuating the displacement sensor is attached to the circumference of the shaft along a helical line.

The invention has for its object to provide an improved magnetic sensor arrangement for detecting axial movements and positions of a shaft, wherein the shaft can also perform rotational movements within a rotation angle range of less than 360 °, as well as a use of the magnetic sensor arrangement.

The object is achieved by a magnetic sensor arrangement with the features of claim 1 and a use of a magnetic sensor arrangement with the features of claim 4.

Advantageous embodiments of the invention are the subject of the dependent claims.

A magnetic sensor arrangement for detecting axial movements and positions of a shaft, wherein the shaft can additionally perform rotational movements within a rotation angle range of less than 360 °, comprises at least one sensor unit and at least one magnetic transmitter unit arranged on the shaft.

The encoder unit encloses an outer circumference of the shaft only partially, d. H. the encoder unit does not completely enclose the outer circumference of the shaft. In this case, the encoder unit is arranged on the outer circumference of the shaft and an extension of the encoder unit in the circumferential direction of the shaft is so large that at least in the axial movement of the shaft of this achievable axial extreme positions in each resulting from the rotational movement of the shaft position, a range of Encoder unit is located in a detection range of the sensor unit.

The transmitter unit can also be used as mechanical positioning, ie. H. For example, serve as an end stop for the shaft to prevent inadmissible axial movement and / or rotational movement of the shaft. Ie. a rotational movement of the shaft beyond the permissible angle of rotation and / or an axial movement of the shaft beyond the two axial extreme positions is mechanically prevented by the encoder unit.

A magnetic field formed by the transmitter unit can be detected once and / or multidimensionally by means of the sensor unit. Therefore, by means of this magnetic sensor arrangement, by evaluating a magnetic flux density and / or a magnetic flux density angle, positions and changes in position and above that movements of the shaft along an axial movement path are to be detected. Absolute values and / or values of the absolute values and / or a profile of the magnetic flux density and / or the magnetic flux density angle over the axial movement path of the shaft are thereby evaluated.

The sensor unit is expediently positioned radially to the shaft and at a predetermined radial distance from the transmitter unit, so that a predetermined air gap is formed between the transmitter unit and the sensor unit. For the size of the given air gap, ie for the distance between the sensor unit and the encoder unit, a tolerance range is expediently specified, ie deviations within this tolerance range are permissible and do not jeopardize the reliable determination of the axial position of the shaft. Due to the unique spatial magnetic field formed by the transmitter unit, the sensor unit can be oriented in different spatial directions, ie it is not absolutely necessary, for example, to align the sensor unit exactly perpendicular to the shaft. This possibility of variation in the arrangement of the sensor unit facilitates integration of the magnetic sensor arrangement, for example into a transmission.

The transmitter unit formed in this way requires a much smaller volume of magnet and thus a much smaller installation space than the ring magnet known from the prior art. In addition, this results in a significant cost savings. Furthermore, the ring magnet known from the prior art does not provide a sufficient magnetic flux density in order to reliably detect the respective position of the shaft as far as the two extreme axial positions, in particular even in the case of large axial movements of the shaft.

By the encoder unit a secure detection of the axial movement of the shaft is ensured, even with the shaft made possible rotational movements. A complete enclosure of the shaft with the encoder unit is not required for this purpose, it only has to be ensured that the transmitter unit does not move out of the detection range of the sensor unit due to the rotational movements of the shaft, ie. H. The transmitter unit must be sufficiently large and positioned accordingly on the shaft. In this way, a magnetic flux density unambiguously assignable to this position and / or a magnetic flux density angle that can be unambiguously assigned to this position can be determined by the sensor unit for each axial position of the shaft.

The transmitter unit is expediently materially, positively and / or non-positively connected to the shaft. It is either attached directly to the shaft or connected via a corresponding arranged on the shaft holder with the shaft.

According to the invention, the transmitter unit is formed from two circular arc-shaped magnets which are arranged in the axial direction of the shaft one behind the other on the shaft such that in the axial extreme positions of the shaft a respective arcuate magnet is positioned in the detection range of the sensor unit. The circular arc magnets are expediently magnetized in the axial direction of the shaft, d. H. Magnetic poles of the circular arc-shaped magnets are each located in the region of a side facing the shaft and in the region of a side facing away from the shaft side of the circular arc-shaped magnets. Conveniently, the circular arc magnets are mutually magnetically polarized opposite each other, d. H. they are magnetized to each other opposite pole. In these circular arc-shaped magnets, also referred to as circular segment magnets, both the side facing the shaft and the side facing away from the shaft are circular arc-shaped.

The transmitter unit designed in this way supplies a sufficiently high flux density with a small magnet volume and a small installation space requirement and low costs, in particular even with large axial movements of the shaft, since the magnetic field is pulled apart in the axial direction of the shaft by the two circular arc magnets and is applied to them Way over an entire axial movement path of the shaft extends. Ie. Even with such large axial movements, a respective axial position of the shaft over the entire axial movement path up to the two axial extreme positions can be reliably detected.

Advantageously, the circular arc-shaped magnets are connected to each other by means of a magnetic flux guide. These circular arc magnets are expediently in a lower region, d. H. in a region facing the shaft and facing away from the sensor unit region, connected to each other via the magnetic flux guide. In this way, the magnetic flux density is increased, so that the magnetic field over the entire axial movement path of the shaft is to be reliably detected by the sensor unit. Since the Magnetflussleitstück is disposed on the remote from the sensor unit areas of the circular arc magnets, characterized here the magnetic flux is more increased here than in the sensor unit facing areas, so that the sensor unit between the two arcuate magnets continue to detect a significant drop in the magnetic flux density is.

Due to the improved magnetic flux, however, a magnetic flux density for sensing by the sensor unit is still sufficiently high.

Conveniently, the sensor element is designed as a Hall sensor or as a magnetoresistive sensor. The Hall sensor evaluates the magnetic flux density, in particular a direction perpendicular to the shaft and in the direction of the Hall sensor directed portion of the magnetic flux density. The magnetoresistive sensor evaluates a magnetic flux density angle.

According to the invention, the magnetic sensor arrangement can be used in or on a transmission which has at least one shaft which can execute both axial movements and rotational movements within a rotation angle range of less than 360 °. The transmission is for example a vehicle transmission. By using an embodiment of a magnetic sensor arrangement designed according to the invention, a detection of axial movements and positions of the shaft is simplified and optimized, since the magnetic sensor arrangement is much less expensive, more accurate and less susceptible to errors and requires less installation space.

Embodiments of the invention are explained in more detail below with reference to drawings.

Show:

1 1 is a perspective view of a shaft with a ring magnet according to the prior art,

2 schematically a diagram with magnetic flux densities and magnetic flux density angles, which consists of the in 1 result in the arrangement shown

3 1 is a schematic side view of a prior art magnetic transmitter unit formed by a bar magnet;

4 schematically a magnetic transmitter unit formed by a bar magnet in plan view,

5 schematically a diagram with magnetic flux densities, which consists of the in 3 and 4 result in the arrangement shown

6 schematically a diagram with magnetic flux density, which from the in 3 and 4 result in the arrangement shown

7 schematically a perspective view of a shaft with two circular arc-shaped magnets arranged thereon, and

8th schematically a diagram with magnetic flux densities and magnetic flux density angles, which consists of the in 7 shown arrangement result.

Corresponding parts are provided in all figures with the same reference numerals.

The 1 . 3 . 4 and 7 show various embodiments of a magnetic encoder unit 1 a magnetic sensor arrangement 2 for detecting axial movements and positions of a shaft 3 , where the wave 3 can also perform rotational movements within a rotation angle range of less than 360 °. It is in 1 . 3 and 4 a transmitter unit 1 represented according to the prior art. The 7 shows the embodiment of the solution according to the invention. The wave 3 and their axial movements are as in the 1 and 7 aligned parallel to an x-axis of a three-dimensional coordinate system. A y-axis and a z-axis of the three-dimensional coordinate system are respectively aligned perpendicular thereto and perpendicular to each other.

The magnetic sensor arrangement 2 includes in addition to the hard magnetic encoder unit 1 furthermore, a magnetic sensor unit designed, for example, as a Hall sensor or magnetoresistive sensor 4 which only in 1 is shown schematically by way of example. The Hall sensor evaluates, as in the 2 . 5 and 8th shown, a magnetic flux density B from, in particular one perpendicular to the shaft 3 and directed toward the Hall sensor z-flux density component Bz. The magnetoresistive sensor evaluates a magnetic flux density angle α. This spans in an xz-plane of the three-dimensional coordinate system.

The sensor unit 4 is radial to the shaft 3 and at a predetermined radial distance to the transmitter unit 1 positioned so that a predetermined air gap L between the encoder unit 1 and the sensor unit 4 is formed. For the size of the predetermined air gap L, ie for the distance between the sensor unit 4 and the transmitter unit 1 , a tolerance range is expediently specified, ie deviations within this tolerance range are permissible and jeopardize the reliable determination of the axial position of the shaft 3 Not.

One through the transmitter unit 1 formed magnetic field is by means of the sensor unit 4 one and / or multi-dimensional detectable. Therefore, by means of this magnetic sensor arrangement 2 by evaluating the magnetic flux density B and / or the magnetic flux density angle α positions and position changes and above it movements of the shaft 3 along an axial movement path s to detect. Absolute values and / or absolute values and / or a profile of the magnetic flux density B and / or of the magnetic flux density angle α over the axial movement path s of the shaft are thereby obtained 3 evaluated.

Due to the transmitter unit 1 trained unique spatial magnetic field, the sensor unit 4 be spatially oriented differently, ie, for example, it is not absolutely necessary, the sensor unit 4 exactly perpendicular to the shaft 3 align. Through this Variability in the arrangement of the sensor unit 4 is an integration of the magnetic sensor arrangement 2 facilitated for example in a transmission.

The magnetic sensor arrangement 2 For example, it can be used in or on a transmission which has at least one such shaft 3 which, during operation of the transmission, performs both relatively large axial movements and irregular rotational movements with a limited angular rotation interval. Ie. the rotational movements of the shaft 3 are limited so that they can not make full turns through 360 °, but can only rotate back and forth within a smaller range of rotation angles. The transmission is designed for example as a vehicle transmission.

In the in 1 illustrated example of the magnetic sensor arrangement 2 in the prior art is the magnetic encoder unit 1 as a ring magnet 5 formed, due to a direction of the shaft 3 trained web also known as T-ring magnet or T-magnet. This ring magnet 5 encloses a circumference of the shaft 3 completely, even with rotary movements of the shaft 3 to detect their axial movements safely. This requires the ring magnet 5 but a very large magnet volume. This results in a large required space and high costs. In addition, the ring magnet supplies 5 with large axial movements of the shaft 3 no sufficiently high magnetic flux density B over the entire axial path s of the shaft 3 away, so that in particular for large axial movement paths s an exact unique axial motion detection and position detection of the shaft 3 impossible or at least significantly more difficult.

In 2 are for the in 1 illustrated magnetic sensor arrangement 2 in a diagram curves VB, VBz, VBx, Vα of the magnetic flux density B and their spatial distribution in the form of a z-flux density component Bz parallel to the z-axis and an x-flux density component Bx parallel to the x-axis of the three-dimensional coordinate system and a magnetic flux density angle α over the axial movement path s of the shaft 3 shown away. One magnet temperature of the encoder unit 1 is for example 100 ° C. By evaluating these curves VB, VBz, VBx, Vα is the respective axial position of the shaft 3 and thereby the axial movement of the shaft 3 to investigate. When evaluating the magnetic flux density angle α, the magnetoresistive sensor does not use the full 360 ° of the sensor resolution.

The 3 and 4 show another example of the magnetic sensor arrangement 2 according to the prior art. The encoder unit encloses 1 , unlike in 1 shown ring magnet 5 from the prior art, an outer circumference of the shaft 3 only partially, ie the encoder unit 1 encloses the outer circumference of the shaft 3 not completely. The transmitter unit 1 is on the outer circumference of the shaft 3 arranged and an extension of the encoder unit 1 in the circumferential direction of the shaft 3 is so large that at least in by the axial movement of the shaft 3 from these achievable extreme axial positions in each of the rotational movement of the shaft 3 resulting position an area of the encoder unit 1 in a detection range of the sensor unit 4 located. The transmitter unit can 1 also as mechanical positioning, ie for example as an end stop for the shaft 3 , serve to prevent inadmissible axial movement and / or rotational movement of the shaft 3 to prevent. Ie. a rotational movement of the shaft 3 beyond the permissible angle of rotation and / or an axial movement of the shaft 3 beyond the two extreme axial positions is through the encoder unit 1 mechanically prevented.

In the in the 3 and 4 illustrated embodiment, according to the prior art, the encoder unit 1 from a bar magnet 6 formed, which parallel to the shaft 3 aligned with the shaft 3 is arranged, wherein in the axial extreme positions of the shaft 3 one end area of the transmitter unit each 1 in the detection range of the sensor unit 4 is positioned, ie a length of the encoder unit 1 corresponds to a length of the movement path s of the shaft 3 , The transmitter unit 1 is in 3 in a side view and in 4 shown in plan view. The bar magnet 6 is in the axial direction of the shaft 3 magnetized, ie magnetic poles of the bar magnet 6 are in the range of its front sides.

This bar magnet 6 , which is suitably formed from a plurality of individual assembled elements, requires a larger volume of magnet and a larger contiguous space than those in 7 illustrated embodiment of the encoder unit 1 , The bar magnet 6 provides in particular a good signal for the evaluation of the direction in the direction of the sensor unit 4 directed z-flux density component Bz, which by means of a designed as a Hall sensor sensor unit 4 is well detectable and evaluable. The bar magnet 6 However, it is also in combination with a designed as a magnetoresistive sensor sensor unit 4 suitable.

At the front sides of the bar magnet 6 is each a magnetic flux guide 7 arranged. The magnetic flux guides 7 are formed of a magnetically conductive material, such as steel. Through these magnetic flux guides 7 is the magnetic flux density B, in particular the z-flow density component Bz, and in particular their course over the extent of the encoder unit 1 in the axial direction of the shaft 3 optimized, so that a clear evaluation and beyond a clear Determining the respective axial position of the shaft 3 is improved. To achieve this, have the magnetic flux guides 7 also on one of the front side of the bar magnet 6 opposite side to a greater height than on the side of which the front side of the bar magnet 6 is facing. Here are the magnetic flux guides 7 , as in 3 illustrated, formed such that the height between the two sides of the respective Magnetflussleitstückes 7 rises in a straight line.

In the 5 and 6 are for those in the 3 and 4 illustrated embodiment of the magnetic sensor assembly 2 in diagrams curves VBz _5.3 , VBz _6.3 , VBz _7.3 , Va _5.3 , Va _6.3 , Vα _{7.3 of} the z-flow density component Bz and the magnetic flux density angle α respectively for three different air gaps L of for example, 5.3 mm, 6.3 mm and 7.3 mm over a half axial path s of the shaft 3 shown away. For example, the 6.3 mm corresponds to a standard air gap and the 5.3 mm and 7.3 mm are the permissible tolerance deviations. By evaluating the respective axial position of the shaft 3 and thereby the axial movement of the shaft 3 to investigate. A magnet temperature is here, for example, 100 ° C.

In the in 7 illustrated embodiment of the solution according to the invention is the encoder unit 1 from two circular magnets 8th formed, which in the axial direction of the shaft 3 so one behind the other on the shaft 3 are arranged that in the axial extreme positions of the shaft 3 in each case a circular arc-shaped magnet 8th in the detection range of the sensor unit 4 is positioned. The circular arc magnets 8th are in the axial direction of the shaft 3 magnetized, ie magnetic poles of the circular arc magnets 8th are each located in the area of one of the shaft 3 facing side and in the area of one of the shaft 3 opposite side of the circular arc magnets 8th , Here are the circular arc magnets 8th oppositely magnetically polarized, ie they are magnetized to each other opposite pole. With these circular-shaped magnets 8th , also referred to as circular segment magnets, is both that of the shaft 3 facing side as well as the shaft 3 opposite side formed circular arc.

The thus formed transmitter unit 1 provides a small magnetic volume and an associated low space requirement and low cost a sufficiently high magnetic flux density B, especially for large axial movements of the shaft 3 through the two circular magnets 8th the magnetic field in the axial direction of the shaft 3 is pulled apart and in this way over the entire axial path s of the shaft 3 extends. Ie. even with large axial movements is a respective axial position of the shaft 3 reliably detectable over the entire axial movement path s up to the two axial extreme positions.

Advantageously, the circular arc magnets 8th connected to each other by means of a Flussleitstückes not shown here. These circular-shaped magnets 8th are expediently in a lower region, ie in one of the shaft 3 facing and from the sensor unit 4 remote area, connected to each other via the flux guide. In this way, the magnetic flux density B is increased, so that the magnetic field over the entire axial path s of the shaft 3 from the sensor unit 4 is sure to capture. Since the flux guide to that of the sensor unit 4 remote areas of the circular arc magnets 8th is arranged, thereby the magnetic flux is increased more here than in the sensor unit 4 facing areas, allowing the sensor unit 4 between the two circular arc magnets 8th Furthermore, a significant drop in the magnetic flux density B can be detected. Due to the improved magnetic flux, however, the magnetic flux density B is also here for sensing by the sensor unit 4 sufficiently high.

The thus formed transmitter unit 1 , which may be formed of a variety of magnetic materials, such as samarium cobalt (SmCo), and in various geometric shapes, requires a much smaller volume of magnetic and thus a much smaller space than the known from the prior art ring magnet 5 , In addition, this results in a significant cost savings. Furthermore, this encoder unit delivers 1 even with large axial movements of the shaft 3 a sufficient magnetic flux density B to the respective position of the shaft 3 to safely detect up to the two axial extreme positions.

By the thus formed transmitter unit 1 is a reliable detection of the axial movement of the shaft 3 ensured, even with the shaft 3 enabled rotational movements. Complete enclosure of the shaft 3 with the encoder unit 1 This is not necessary, it must only be ensured that the transmitter unit 1 by the rotational movements of the shaft 3 not from the detection range of the sensor unit 4 moved out, ie the encoder unit 1 must be trained sufficiently large and accordingly on the shaft 3 be positioned. In this way is from the sensor unit 4 for each axial position of the shaft 3 to determine a magnetic flux density B uniquely assignable to this position and / or a magnetic flux density angle α that can be unambiguously assigned to this position.

The transmitter unit 1 is cohesive, positive and / or non-positive with the shaft 3 connected. She is either directly on the wave 3 attached or via a corresponding on the shaft 3 arranged bracket with the shaft 3 connected. The holder is not shown in detail in the figures, which is why the impression arises as if the encoder unit 1 from the wave 3 detached. In the space between the shaft 3 and the transmitter unit 1 However, the holder, not shown, is arranged, via which the transmitter unit 1 on the shaft 3 is attached.

In 8th are for the in 7 illustrated magnetic sensor arrangement 2 in a diagram curves VB, VBz, VBx, Vα of the magnetic flux density B and their spatial distribution in the form of the z-flux density component Bz parallel to the z-axis and the x-flow density component Bx parallel to the x-axis of the three-dimensional coordinate system and the magnetic flux density α over the axial movement path s of the shaft 3 shown away. The magnet temperature of the encoder unit 1 is here, for example, 100 ° C. By evaluating these curves VB, VBz, VBx, Vα is the respective axial position of the shaft 3 and thereby the axial movement of the shaft 3 to investigate. In the evaluation of the magnetic flux density α in the magnetoresistive sensor not the full 360 ° of the sensor resolution are used, but for example only 300 °

Alternatively to the determination of the axial movements and positions are by means of such a correspondingly adapted magnetic sensor arrangement 2 also rotatory movements and positions can be detected, which are superimposed by limited translational movements. The encoder unit is here 1 arranged and an extension of the encoder unit 1 such that, at least in rotational extreme positions which can be achieved by the rotational movement, in each position resulting from the translatory movement, a region of the transmitter unit 1 in a detection range of the sensor unit 4 located.

LIST OF REFERENCE NUMBERS

1

transmitter unit

2

The magnetic sensor system

3

wave

4

sensor unit

5

ring magnet

6

bar magnet

7

Magnetflussleitstück

8th

circular arc magnet

B

flux density

Bx

x-flux density share

Bz

z-flux density share

L

air gap

s

motion path

α

Flux angle

VB

Course flux density

VBx

Course x flux density share

VBz

Course z-flux density share

Va

Course of flux density angle

VBz _5.3

Course z-flow density share at 5.3 mm air gap

VBz _6.3

Gradient z-flow density fraction at 6.3 mm air gap

VBz _7.3

Course z-flow density share at 7.3 mm air gap

Vα _5,3

Flow density angle at 5.3 mm air gap

Vα _6,3

Flow density angle at 6.3 mm air gap

Vα _7,3

Flow density angle at 7.3 mm air gap

Claims (4)

Magnetic sensor arrangement ( 2 ) for detecting axial movements and positions of a shaft ( 3 ), where the wave ( 3 ) can also perform rotational movements within a rotation angle range of less than 360 °, comprising at least one sensor unit ( 4 ) and at least one on the shaft ( 3 ) arranged magnetic transmitter unit ( 1 ), whereby the transmitter unit ( 1 ) an outer periphery of the shaft ( 3 ), whereby the transmitter unit ( 1 ) on the outer circumference of the shaft ( 3 ) is arranged and an extension of the encoder unit ( 1 ) in the circumferential direction of the shaft ( 3 ) is so large that at least in by the axial movement of the shaft ( 3 ) of these achievable extreme axial positions in each of the rotational movement of the shaft ( 3 ) resulting position an area of the transmitter unit ( 1 ) in a detection area of the sensor unit ( 4 ), characterized in that the transmitter unit ( 1 ) of two circular-shaped magnets ( 8th ) is formed, which in the axial direction of the shaft ( 3 ) in such a way on the shaft ( 3 ) are arranged such that in the axial extreme positions of the shaft ( 3 ) each a circular arc-shaped magnet ( 8th ) in the detection range of the sensor unit ( 4 ), the circular-arc magnets ( 8th ) are oppositely magnetically polarized. Magnetic sensor arrangement ( 2 ) according to claim 1, characterized in that the circular arc-shaped magnets ( 8th ) are interconnected by means of a flux guide. Magnetic sensor arrangement ( 2 ) according to claim 1 or 2, characterized in that the sensor element ( 4 ) is designed as a Hall sensor or as a magnetoresistive sensor. Use of a magnetic sensor arrangement ( 2 ) according to one of claims 1 to 3 in or on a transmission, in particular vehicle transmission, which at least one shaft ( 3 ), which can perform both axial movements and rotational movements within a rotation angle range of less than 360 °.

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