A sensor arrangement for position sensing comprises a row of multiple magnetoresistive elements. A magnetic field source ( 3 ) provides a magnetic field with a first magnetic pole (N) and a second magnetic pole (S). The magnetic field source ( 3 ) is arranged such that magnetoresistive elements of the row face one of: the first magnetic pole (N) or second magnetic pole (S). The first magnetoresistive element is arranged in the magnetic field and provides a first output signal dependent on a position of the magnetoresistive element relative to the magnetic field source ( 3 ). A measurement unit is configured to determine a position of the magnetic field source ( 3 ) relative to the magnetoresistive elements of the row dependent on the first output signals of the magnetoresistive elements.

Claims

19 · 2 independent · depth 4

19 granted claims

›1.independentA sensor arrangement for position sensing, comprising a magnetic field source providing a magnetic field with a first magnetic pole (N) and a second m…+10

›2.↳ 1The sensor arrangement of claim 1 , wherein each of the multiple magnetoresistive elements of the row comprises a stack of layers including at least a…d2+2

›4.↳ 1The sensor arrangement of claim 1 , comprising additional multiple magnetoresistive elements arranged in the magnetic field in an additional row along…d2

›5.↳ 1The sensor arrangement of claim 1 , wherein the magnetic field source is dimensioned relative to the row of multiple magnetoresistive elements such th…d2

›6.↳ 1The sensor arrangement of claim 1 , wherein the measurement unit is configured to identify the single first magnetoresistive element out of the multip…d2

›7.↳ 1The sensor arrangement of claim 1 , wherein the magnetic field source is dimensioned relative to the multiple magnetoresistive elements such that the …d2

›9.↳ 1The sensor arrangement of claim 1 , wherein a middle first magnetoresistive element ( 1 m ) is arranged at a closest vertical distance from the magnet…d2

›10.↳ 1The sensor arrangement of claim 1 , wherein one of the magnetoresistive elements of the row and the magnetic field source ( 3 ) is coupled to an objec…d2

›16.↳ 1The method as claimed in claim 1 , wherein the magnetic field source ( 3 ) is dimensioned relative to the multiple magnetoresistive elements of the ro…d2

›11.independentA method for determining the position of an object, comprising: coupling one of a magnetic field source ( 3 ) providing a magnetic field with a first …+7

›12.↳ 11The method as claimed in claim 11 , wherein each of the multiple magnetoresistive elements of the row comprises a stack of layers including at least a…d2+6

›13.↳ 12The method as claimed in claim 12 , further comprising: moving the magnetic field source ( 3 ) relative to the first row of multiple magnetoresistive …d3

›14.↳ 12The method as claimed in claim 12 , further comprising: arranging additional multiple magnetoresistive elements in the magnetic field in an additional…d3+1

›17.↳ 12The method as claimed in claim 12 , wherein the magnetic field source ( 3 ) is dimensioned relative to the multiple first magnetoresistive elements ( …d3

›18.↳ 12The method as claimed in claim 12 , wherein a magnetization orientation of one of the magnetic layers of the multiple magnetoresistive elements ( 1 ) …d3

›19.↳ 12The method as claimed in claim 12 , wherein a middle magnetoresistive element is situated at a closest vertical distance from the magnetic field sourc…d3

Classifications

5 codes

IPC · International Patent Classification

Section G — Physics

G01R33/09
G01V3/08
G01B7/14
G01D5/16
G01R1/04

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Pendency

1.6 y

594 days filing → grant

Office actions

non-final + final

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2 RCE

Examiner

Jermele M Hollington

art unit 2858 · TC 2800

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Citations: 29 back · 0 forward

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20180120129 A1	3 May 2018

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