WO2019053156A1 - Messanordnung - Google Patents
Messanordnung Download PDFInfo
- Publication number
- WO2019053156A1 WO2019053156A1 PCT/EP2018/074800 EP2018074800W WO2019053156A1 WO 2019053156 A1 WO2019053156 A1 WO 2019053156A1 EP 2018074800 W EP2018074800 W EP 2018074800W WO 2019053156 A1 WO2019053156 A1 WO 2019053156A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic scale
- measuring arrangement
- sensor elements
- magnetic
- magnetoresistive sensor
- Prior art date
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
- G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—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 characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
- G01D5/2451—Incremental encoders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
- G01R33/098—Magnetoresistive devices comprising tunnel junctions, e.g. tunnel magnetoresistance sensors
-
- 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
- G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—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 characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
- G01D5/2454—Encoders incorporating incremental and absolute signals
- G01D5/2455—Encoders incorporating incremental and absolute signals with incremental and absolute tracks on the same encoder
- G01D5/2457—Incremental encoders having reference marks
Definitions
- the invention relates to a measuring arrangement for measuring the
- a magnetic scale is read out by applying a sensor by means of which a magnetic field is detectable to a circuit board and arranging this circuit board perpendicular to the surface of the magnetic scale.
- a sensor by means of which a magnetic field is detectable to a circuit board and arranging this circuit board perpendicular to the surface of the magnetic scale.
- the sensor on the circuit board is conventionally arranged close to the end of the circuit board facing the magnetic scale. This disadvantageously only a small space between the magnetic scale and the sensor and on the part of the circuit board is present, which is arranged between the magnetic scale and the sensor.
- the object of the invention is therefore to provide a measuring arrangement for detecting a magnetic scale, in which a large space between the magnetic scale and a sensor of the measuring arrangement can be provided.
- the measuring assembly comprises an article having a magnetic scale and a chip spaced from the magnetic scale and a processed afer and at least one row of
- Magnetoresistive sensor elements are mounted on at least one planar wafer side of the processed wafer, and
- Measuring arrangement can be provided.
- Position of the object is increased and / or the distance between the magnetic scale and the magnetoresistive
- the magnetoresistive sensors can only face away from the scale on the planar wafer side facing the scale
- the measurement accuracy is particularly high when the magnetoresistive sensor elements both on the surface facing the scale wafer side and on the side facing away from the scale flat wafer side
- flat wafer side is to be understood as meaning that side of the wafer which has the greatest surface area, normally the wafer has two of the flat wafer sides, which are the same size and parallel to one another Has wafer sides, one of the two flat wafer sides facing the magnetic scale and the other of the two flat wafer sides facing away from the magnetic scale.
- scale is a device to
- the length has a regular division.
- the regular division may be, for example, a linear division, a square division or a
- Act logarithmic division Other divisions are conceivable, such as a binary pattern. It is also conceivable to use two of the scales with a different pitch, such as a vernier system.
- the magnetoresistive sensor elements may be any magnetoresistive sensor elements.
- Tunnel resistance effects to detect It is preferred that the magnetoresistive sensor elements in a regular
- the magnetic scale can be, for example, a band, in particular the band is flexible and / or windable.
- the processed wafer is understood to be a wafer onto which layers have been applied and structured by way of example by means of thin-film technology or thick-film technology.
- the processed wafer may have sections of electrically modified properties ⁇ doping) to electronic
- the processed wafer can be used as a substrate by way of example
- the Sensorelernente be exemplary on the wafer by means of a thin-film experience and / or
- Thick layer experienced applied. It is also conceivable that additional electronic components are arranged on the chip. It is preferred that the at least one line in
- the number of magnetoresistive sensor elements in each of the rows is equal to the number of increments of the magnetic scale in the particular range. This makes it possible to determine with a particularly high degree of accuracy when the object moves by exactly one increment or a fraction of the increment in the longitudinal direction. It is also
- the number of magnetoresistive sensor elements in each of the rows is greater than the number of increments of the magnetic scale in the
- the position of the object can be determined with a higher accuracy. It is also conceivable that, in a certain range in the longitudinal direction, the number of magnetoresistive sensor elements in each of the rows is different from the number of increments of the magnetic scale in the specific range. Here it is possible to position the item with a higher one
- the measuring arrangement is set up to use one line to determine when the object is moving by exactly one increment, and the other line to determine the position with the higher accuracy than the increment.
- the magnetic scale preferably has a flat scale side, which is arranged facing the planar wafer side, on which the magnetoresistive sensor elements are arranged.
- the distance between the magnetic scale and the magnetoresistive sensor elements can be further extended.
- the flat scale side is arranged parallel to the planar wafer sides, on which the magnetoresistive sensor elements are arranged.
- flat scale side is to be understood as that side of the magnetic scale which is the largest exposed surface of the magnetic scale. It is preferable that the magnetic scale has a plurality of magnetic scale bars juxtaposed in the longitudinal direction of the magnetic scale. Furthermore, it is preferred that the scale lines are arranged at a distance from each other. In addition, the scale marks are preferably applied to a non-magnetic and non-magnetizable part of the article. As a result, and by the distance of the scale lines to each other, the magnetic scale in the longitudinal direction alternately magnetic and non-magnetic
- the magnetic scale can also be a multipole magnet scale by way of example.
- the tick marks can be a multipole magnet scale by way of example.
- Pressure medium has to magnetic particles.
- Pressure medium may be, for example, an ink. It is also preferable that the magnetic scale in
- each of two of the regions adjacent to each other has an opposite magnetic
- the magnetic scale of the measuring arrangement is preferred
- the measuring arrangement has a
- Special position determination device which is arranged on the chip and is adapted to detect the special position.
- the special position determination device which is arranged on the chip and is adapted to detect the special position.
- the special positions may be marked, for example, by the magnetic scale by a different shape of the magnetic field emanating from the magnetic scale compared to the rest of the magnetic scale.
- this variant form may be longer or shorter
- the special positions can be arranged along the entire magnetic scale.
- the chip may have at least one additional sensor element.
- the at least one additional sensor element is preferably set up to detect only the at least one special position. In the case that the special positions are marked by the different shape of the magnetic field emanating from the magnetic scale, it may be in the additional
- the chip has at least one light source which is set up to illuminate the magnetic scale with visible light and / or infrared light.
- planar chip sides facing the magnetic scale and / or arranged away from can be the
- the measuring arrangement has a stop and a limit switch, wherein either the limit switch is attached to the chip and the stop on the magnetic scale or the limit switch is attached to the magnetic scale and the stop on the chip.
- the stop is set to close the limit switch
- the magnetic scale is arranged.
- a power supply can be provided which supplies both the magnetoresistive sensor elements and the limit switch with power.
- limit switch is meant both a switch and a button.
- the chip is arranged stationary and the object is arranged to be movable.
- the object is arranged stationary and the chip is arranged to be movable.
- the object is a wave and the magnetic scale in
- Circumferential direction of the shaft is arranged on the shaft, so that the longitudinal direction of the magnetic scale with the
- the measuring arrangement has the magnetoresistive sensor elements which are attached to the planar chip sides, which are arranged facing the magnetic scale and / or arranged away, can advantageously be achieved simply that all magnetoresistive sensor elements of the line that of the
- the magnetic scale is mounted in the circumferential direction of the shaft and not at one longitudinal end of the shaft, a determination of the position, in particular a rotational angle of the shaft, take place at any position of the shaft. It is conceivable, for example, that the magnetic scale is arranged in the region of a clutch and / or in the region of a transmission. It is here
- the magnetic scale is the flexible and / or windable band.
- the flexible and / or wound tape is particularly easy to apply to the shaft. It is preferred that the magnetic scale is applied to a radially outer surface of the shaft and the chip is arranged radially outside the shaft and / or wherein the shaft is a hollow shaft, the magnetic scale applied to a radially inner surface of the hollow shaft and the chip radially is disposed within the hollow shaft.
- the magnetic scale and the chip are arranged inside the hollow shaft, they are advantageously protected against contamination, for example by a lubricating oil.
- the magnetic scale can also be arranged on a flange. It is also conceivable that the flat wafer side in
- the shaft is oriented.
- the planar wafer side lies in a plane which is parallel to the axial direction of the shaft and the
- the chip has at least two of the rows of magnetoresistive sensor elements which are in one
- the magnetic scale has a plurality of tracks that are in the
- the measuring arrangement can be set up to determine the position of the object relatively by detecting the magnetic fields of a first of the tracks by means of a first of the lines and to determine the position of the object absolutely by detecting the magnetic fields of a second of the tracks by means of a second of the lines.
- the magnetic areas and / or the scale lines of the second track may have a different shape than the magnetic areas and / or the scale lines of the first track.
- the second track may have different lengths and / or different widths magnetic regions and / or different lengths and / or different widths
- the second track may have a single one of the tick marks or a single one of the magnetic portions.
- the measuring arrangement preferably has a Wheatstone ⁇ see
- Bridge circuit and at least two of the magnetoresistive sensor elements are connected as resistors in the Wheatstone bridge circuit see. Thereby, a ratio of the resistances in the bridge circuit can be determined with high accuracy.
- the two are preferred as
- Bridge circuit are interconnected, the four of the
- Magnetoresistive sensor elements in the corners of a rectangle, in particular a square are arranged.
- One of the sides of the rectangle may be provided parallel to the longitudinal direction of the magnetic scale.
- the Wheatstone bridge can be determined with high accuracy if the longitudinal direction of the magnetic scale deviates from the one of the sides of the rectangle.
- the processed wafer may, for example, be bonded or enclosed in an SMD component.
- FIG. 1 shows a section through a first embodiment of the measuring arrangement according to the invention.
- FIG. 2 shows a plan view of the first embodiment of the measuring arrangement according to the invention.
- FIG. 3 shows a plan view of a second embodiment of the measuring arrangement according to the invention.
- FIG. 4 shows a first circuit diagram
- FIG. 5 shows a second circuit diagram.
- FIG. 6 shows a third circuit diagram.
- FIGS. 1 to 3 show a measuring arrangement 1 for determining a position of an object 14.
- the measuring arrangement 1 has the object 14, which has a magnetic scale 2, which is attached to the object 14, and the positions of the object 14 are set through of the
- the magnetic scale 2 outgoing magnetic field to mark.
- the scale 2 can be a band
- the measuring arrangement 1 further has a chip 22, which is arranged at a distance from the magnetic scale 2 and has a processed afer 5 and at least one line 7 or 8 of magnetoresistive sensor elements 6.
- the magnetoresistive sensor elements 6 may, for example, be sensor elements which are set up to emit the magnetic field emanating from the scale, taking into account the anisotropic magnetoresistive effect, the giant magnetoresistance effect, the colossal magnetoresistive effect and / or the
- Processed wafer 5 has a planar wafer side 12, on which the magnetoresistive sensor elements 6 are mounted and which faces the magnetic scale 2. In addition, it is conceivable that the magnetoresistive sensor elements are also arranged on the side facing away from the magnetic scale 2 wafer side.
- the flat wafer side 12 is to be understood as that side of the wafer 5 which has the largest surface area, wherein FIGS. 1 to 3 show that the wafer 5 has two of the flat wafer sides 12, which are the same size and parallel to one another.
- the processed wafer 5 has a narrow wafer side 13, which has a smaller area than the planar one Wafer side 12 has, adjacent to the planar chip side 12 and is arranged at a right angle to the flat wafer side 12.
- the magnetoresistive sensor elements 6 are set up to detect the magnetic field originating from the magnetic scale 2, so that the measuring arrangement 1 is set up to measure the position of the object 14.
- the chip 22 is arranged stationary and the object 14 is arranged to be movable.
- the object 14 is arranged stationary and the chip 22 is arranged to be movable.
- the magnetic scale 2 has a flat scale side 15, which is the largest exposed surface of the magnetic scale 2.
- Scale side 15 is the planar wafer side 12, on which the magnetoresistive Sensorelernente 6 are arranged, arranged facing and parallel to the planar wafer side 12, on which the magnetoresistive sensor elements 6 are arranged arranged.
- the space between the planar wafer side 12 and the flat scale side 15 is free, so that the magnetic field emanating from the magnetic scale 12 as undisturbed by the magnetoresistive sensor elements 6 can be detected.
- Figures 1 to 3 show that the magnetic scale 2 a
- FIG. 11 Has longitudinal direction 11 and is arranged to identify the positions of the article 14 at least in the longitudinal direction 11 by means of the magnetic field.
- the at least one row 7 or 8 of the magnetoresistive sensor elements 6 is oriented in the longitudinal direction 11 of the magnetic scale 2, i. the direction of the line 7 ode 8 is parallel to the longitudinal direction 11.
- Figures 1 and 2 show a first embodiment of the measuring arrangement 1, in which the magnetic scale 2 in the longitudinal direction 11 of the magnetic scale 2 immediately adjacent magnetic regions 3, 4 has , Each two of the regions 3, 4, which are arranged adjacent to each other, ei e have opposite magnetic polarization, wherein the
- FIGS. 1 and 2 show that in a certain area in the longitudinal direction 11 the number of magnetoresistive magnets is
- FIG. 3 shows a second embodiment of the measuring arrangement 1, in which the magnetic scale 2 has a plurality of magnetic scale lines 17 which are shown in FIG
- the scale lines 17 are arranged at a distance from one another and can be applied to a non-magnetic and non-magnetizable part of the article 14.
- the scale marks 17 can be exemplified by a
- the pressure medium may be, for example, an ink.
- An increment of the magnetic scale 2 is the distance of two adjacent to each other
- Fig. 3 shows that, in a certain range in the longitudinal direction 11, the number of magneto-resistive sensor elements 6 in each of the rows 7, 8 is equal to the number of increments of the magnetic scale 2 in the particular area. It is also conceivable that in a certain range in the longitudinal direction 11, the number of magnetoresistive sensor elements 6 in each of the rows 7, 8 lower or higher than the number of increments of
- the chip 22 has at least two of the rows of the magnetoresistive sensor elements 6, namely a first row 7 and a second row 8.
- the rows 7, 8 are in a direction perpendicular to the longitudinal direction 11 of FIG.
- Sensor elements 6 are arranged, and the flat scale side 15 are arranged parallel to each other, all of magnetoresistive sensor elements 6 the same distance from the magnetic scale 2.
- the magnetoresistive sensor elements 6 according to Figures 1 to 3 are in a regular matrix
- the chip 22 at least two of the
- the chip 22 also has a plurality of columns of the magnetoresistive sensor elements 6, wherein in Figures 2 and 3, the reference numeral 9 is a first column and the
- Reference numeral 10 denotes a second column. It is also conceivable that the magnetoresistive sensor elements 6 are arranged in an irregular matrix. For example, different lines may be offset from one another.
- the measuring arrangement 1 can be set up, which
- Position of the article 14 to be determined with a higher resolution than the increment of the magnetic scale 2 by the measuring device 1 is set up the resistances of
- Magnetoresistive sensor elements 6 of the different lines to compare.
- the magnetic scale 2 has a first track 17 and a second track 18 extending in the direction perpendicular to FIG.
- the measuring arrangement 1 is set up to detect the magnetic field emanating from the first track 18 from the first line 7 and that emanating from the second track 19
- the measuring arrangement 1 has a special position determination device, which is arranged on the chip 22, is formed by the second line 8 and is set up to detect the at least one special position 20.
- the second line 8 is set up to detect only the at least one special position.
- the measuring arrangement 1 can be set up to relatively determine the position of the object 14 by detecting the magnetic field emanating from the first track. This can be done in particular by counting the scale marks 17 starting from the
- the first track 18 has a plurality of scale graduations 17, and the second track 19 has only a single one of the scale graduations 17. This can
- Scale lines 17 extends from the first track 18 to the second track 19, while all others of the
- Scale lines 17 extend only within the first track 18.
- the first track 18 has more than two of the scale lines 17 and the second track 19 has only exactly two of the scale lines 17, which are adapted to mark the two longitudinal ends 21 of the magnetic scale 2.
- FIG. 4 shows a first circuit diagram in which the measuring arrangement 1 has a Wheatstone ⁇ bridge circuit 16 and two of the magnetoresistive sensor elements 6 are connected as resistors in the Wheatstone bridge circuit 16.
- the two magnetoresistive sensor elements 6 connected as resistors in the Wheatstone bridge circuit 16 are juxtaposed in a direction perpendicular to the longitudinal direction 11 of the magnetic scale 2.
- Wheatstone see bridge circuit 16 a voltage source Uo, which is adapted to generate an electrical voltage of the value Uo and apply to the Wheatstone 'bridge circuit 16, a voltage meter U, which is set up a voltage applied to the bridge of the Wheatstone bridge circuit electrical voltage U to measure, a first resistor Ri, which has an ohmic resistance Ri, and a second
- Resistor R2 on which has an ohmic resistance R2.
- the two magnetoresistive sensor elements 6 are connected in such a way in the Wheatstone bridge circuit 16 that measured by means of the voltage measuring device U
- Resistors of the two in the Wheatstone 'bridge circuit 16 interconnected magnetoresistive sensor elements 6 can be determined. If the two ohmic resistors Ri and R2 are chosen to be the same size, the ratio can be determined very precisely.
- Magnetoresistive sensor elements 6 asymmetries of the magnetic scale 2 emanating from the magnetic field can be determined with a particularly high accuracy. This is
- the magnetic scale 2 has only a single one of the tracks and the two interconnected in the Wheatstone bridge circuit 16 magnetoresistive sensor elements 6 are arranged symmetrically to the magnetic scale 2.
- the two interconnected in the Wheatstone bridge circuit 16 magnetoresistive sensor elements 6 are arranged symmetrically to the magnetic scale 2.
- Measuring arrangement 1 an offset of the magnetic scale 2 in the direction perpendicular to the longitudinal direction 11 and parallel to the flat scale side 15 with a high
- Figure 5 shows a first circuit diagram and Figure 6 shows a second circuit diagram in which four of the magnetoresistive
- Bridge circuit 16 are interconnected, wherein the four of the magnetoresistive sensor elements 6 in the corners of a
- Rectangles in particular a square, are arranged. Two of the sides of the rectangle are oriented in the longitudinal direction 11 of the magnetic scale 2 and the other two of the sides of the rectangle are in a direction perpendicular to the
- the four magnetoresistive sensor elements 6 are conductive with each other along the sides of the rectangle
- magnetoresistive sensor elements 6 in a second column 10 arranged. Two of the magnetoresistive sensor elements 6 are in a first row 7 and two of the magnetoresistive
- Sensor elements 6 are arranged in the second line 8.
- the Wheatstone bridge circuit 16 includes a voltage source Uo configured to generate an electric voltage of the value Uo and to be applied to the Wheatstone bridge circuit 16, and a voltmeter U arranged at the bridge of FIG
- Wheatstone 'see bridge circuit 16 to measure applied voltage U In the circuit diagram according to FIG. 5, the voltage source Uo and the voltage measuring device U are connected in such a way that the voltage measuring device measures a voltage of zero when the ratio of the resistances in the first column
- Voltage source Uo and the voltmeter U connected so that the voltmeter measures a voltage of zero when the ratio of the resistors in the first row 7 is equal to the ratio of the resistors in the second row 8.
- a deviation of the voltage measured by the voltage measuring device U from zero can be used to determine a misalignment of the chip to the magnetic scale.
- the maladjustment can be, for example, that the planar wafer side 12 and the flat scale side 15 are not aligned in parallel, or that the sides of the rectangle are not exactly in
- the magnetic scale 2 has only a single one of the tracks and see the two in the Wheatstone '
- Bridge circuit 16 interconnected magnetoresistive
- the measuring arrangement 1 can be a
- Special position determination device which is at least partially disposed on the chip 22 and is configured by way of example to detect a special position 20, such as one or both of the longitudinal ends 21 of the magnetic scale 2.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017121524.7 | 2017-09-15 | ||
DE102017121524.7A DE102017121524B4 (de) | 2017-09-15 | 2017-09-15 | Messanordnung |
Publications (1)
Publication Number | Publication Date |
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WO2019053156A1 true WO2019053156A1 (de) | 2019-03-21 |
Family
ID=63683153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2018/074800 WO2019053156A1 (de) | 2017-09-15 | 2018-09-13 | Messanordnung |
Country Status (2)
Country | Link |
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DE (1) | DE102017121524B4 (de) |
WO (1) | WO2019053156A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3880842T2 (de) * | 1987-11-04 | 1993-12-02 | Dana Corp | Magnetwiderstandssensor mit verflochtenem Leiter. |
DE69704577T2 (de) * | 1997-05-09 | 2001-08-23 | Tesa Brown & Sharpe Sa | Elektronische tragbare präzisionskaliber |
DE69719668T2 (de) * | 1996-11-01 | 2004-03-18 | Mitutoyo Corp., Kawasaki | Magnetische Kodiereinrichtung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4616281A (en) * | 1982-03-10 | 1986-10-07 | Copal Company Limited | Displacement detecting apparatus comprising magnetoresistive elements |
DE4237540C2 (de) * | 1992-11-06 | 1996-02-29 | Inst Mikrostrukturtechnologie | Verfahren zur hochauflösenden Messung von Linear- und Drehpositionen |
DE10041095B4 (de) * | 1999-12-06 | 2015-11-12 | Robert Bosch Gmbh | Vorrichtung zur Messung eines Winkels und/oder eines Drehmomentes eines drehbaren Körpers |
DE102005059551A1 (de) | 2005-12-13 | 2007-06-14 | Siemens Ag | Messvorrichtung zum gleichzeitigen Erfassen eines Drehwinkels und einer Verschiebeposition |
DE102009026429A1 (de) * | 2009-05-22 | 2010-11-25 | Robert Bosch Gmbh | Verfahren zur Positionserfassung und Vorrichtung hierfür |
JP5062450B2 (ja) | 2010-08-11 | 2012-10-31 | Tdk株式会社 | 回転磁界センサ |
-
2017
- 2017-09-15 DE DE102017121524.7A patent/DE102017121524B4/de not_active Expired - Fee Related
-
2018
- 2018-09-13 WO PCT/EP2018/074800 patent/WO2019053156A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3880842T2 (de) * | 1987-11-04 | 1993-12-02 | Dana Corp | Magnetwiderstandssensor mit verflochtenem Leiter. |
DE69719668T2 (de) * | 1996-11-01 | 2004-03-18 | Mitutoyo Corp., Kawasaki | Magnetische Kodiereinrichtung |
DE69704577T2 (de) * | 1997-05-09 | 2001-08-23 | Tesa Brown & Sharpe Sa | Elektronische tragbare präzisionskaliber |
Also Published As
Publication number | Publication date |
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DE102017121524A1 (de) | 2019-03-21 |
DE102017121524B4 (de) | 2019-12-24 |
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