JP2018072344A - 磁気センサを用いた多次元測定システムならびに関連するシステム、方法、および集積回路 - Google Patents
磁気センサを用いた多次元測定システムならびに関連するシステム、方法、および集積回路 Download PDFInfo
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- 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
- G01D5/16—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 resistance
- G01D5/165—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 resistance by relative movement of a point of contact or actuation and a resistive track
- G01D5/1655—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 resistance by relative movement of a point of contact or actuation and a resistive track more than one point of contact or actuation on one or more tracks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
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- 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
- G01R33/096—Magnetoresistive devices anisotropic magnetoresistance sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/001—Constructional details of gauge heads
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/0005—Geometrical arrangement of magnetic sensor elements; Apparatus combining different magnetic sensor types
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- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Measuring Magnetic Variables (AREA)
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
【解決手段】本開示は、とりわけ、磁気ターゲットの位置を検出するために3次元(3D)磁気センサを使用するための装置、システム、および方法の実施形態を記載する。3D磁気センサを使用することによって、このような磁気センサの2次元アレイは、磁気ターゲットの3D位置を決定するために使用することができる。
【選択図】図1
Description
本出願は、「THREE DIMENSIONAL POSITION MEASUREMENT USING MAGNETIC SENSORS」という名称の2016年11月4日に出願された、米国仮特許出願第62/417,968号の35U.S.C§119(e)の優先権を主張し、その開示はその全体が参照により本明細書に組み込まれる。
3D磁気センサ
磁気センサICアレイ
その他の磁気センサ
磁気ターゲット位置および回転を決定する方法
アプリケーションおよび用語
120 磁場
130 磁気センサ
200 磁気センサ
210 基板
220 磁気検知素子
260 磁気検知素子
300 磁気センサ
310 磁気検知素子
320 磁気検知素子
350 基板
360 磁気検知素子
400 磁気センサ
410 磁気検知素子
420 処理回路
500 磁気センサ
510 磁気検知素子
520 処理回路
600 磁気ターゲット
610 複数の磁石
700 センサアレイ
710 磁気センサ
800−850 センサアレイ
900 センサアレイ
920 マイクロコントローラ
1000 センサアレイ
1020 マイクロコントローラ
1030 デジタル変換器
1100 センサ
1110 軟磁性部品
1120 基板
1130−1150 軸
1160 ホール効果センサ
1300 センサアレイ
1310 磁気ターゲット
1320 磁気センサ
1400 磁気センササブアレイ
Claims (20)
- 磁気ターゲットの位置を検出するシステムであって、
磁気センサ集積回路(IC)のアレイであって、前記アレイの第1の磁気センサICは、少なくとも3つの第1の磁気検知素子、および前記磁気ターゲットの3次元(3D)位置を示す第1の情報を提供するように構成された1つ以上の第1の出力接点を含み、前記アレイの第2の磁気センサICは、少なくとも3つの第2の磁気検知素子、および前記磁気ターゲットの前記3D位置を示す第2の情報を提供するように構成された1つ以上の第2の出力接点を含む、磁気センサICのアレイと、
前記第1の情報および前記第2の情報に基づいて前記アレイに近接して位置する磁気ターゲットの3D位置情報を出力するよう構成された演算回路と、を含む、システム。 - 前記第1の磁気検知素子は、第1の基板面上に位置する2つの磁気検知素子と、第2の基板面上に位置する別の磁気検知素子とを含み、前記第2の基板面は、前記第1の基板面に対してゼロではない角度に向けられている、請求項1に記載のシステム。
- 前記第1の磁気検知素子は、異方性磁気抵抗検知素子である、請求項2に記載のシステム。
- 前記第1の磁気検知素子は、前記第2の基板面上に位置する付加的な磁気検知素子を含む、請求項2に記載のシステム。
- 前記演算回路は、微細位置測定に用いる前記アレイの磁気センサICのグループを決定するために粗位置を決定するように構成され、前記グループは前記第1の磁気センサICと、前記第2の磁気センサICとを含み、前記3D位置情報は前記微細位置測定を含む、請求項1に記載のシステム。
- 前記演算回路は、前記磁気ターゲットの3次元回転情報を決定するように構成されている、請求項5に記載のシステム。
- 前記演算回路は、前記磁気ターゲットの3次元回転情報を出力するよう構成されている、請求項1に記載のシステム。
- 前記アレイの磁気センサICの列は、前記列内の隣接する磁気センサICから不均一に離間された磁気センサICを含む、請求項1に記載のシステム。
- 相互に最も近い前記アレイの磁気センサICに隣接する2つのIC間の最大距離は、前記磁気ターゲットの最大寸法より小さい、請求項1に記載のシステム。
- 前記演算回路は、マイクロコントローラを含む、請求項1に記載のシステム。
- 前記演算回路は、前記アレイの前記磁気センサICと前記マイクロコントローラとの間に結合されたアナログ/デジタル変換器をさらに含む、請求項10に記載のシステム。
- 磁気ターゲットの位置を決定する方法であって、
閾値を満たすそれぞれの信号を生成する磁気センサのアレイの磁気センサのグループを識別するために前記磁気ターゲットの粗位置を決定することと、
前記磁気センサのグループの磁気センサの測定に基づいて前記磁気ターゲットの回転を測定することと、
前記磁気センサのグループの磁気センサの測定に基づいて前記磁気ターゲットの微細位置を決定することと、を含む、方法。 - 前記アレイの磁気センサは、第1の基板面内の2つの磁気検知素子と、前記第1の基板面にほぼ直交する第2の基板面内の第3の磁気検知素子とをそれぞれ含む、請求項12に記載の方法。
- 前記磁気ターゲットの更新された回転を測定することと、
前記磁気ターゲットの更新された微細位置を決定することと、をさらに含む、請求項12に記載の方法。 - 前記微細位置は3次元位置であり、前記回転の前記測定は、前記磁気ターゲットの3次元回転を測定することを含む、請求項12に記載の方法。
- 磁気ターゲットの位置を検出する磁気センサであって、
第1の基板面に位置する第1の磁気検知素子および第2の磁気検知素子と、
前記第1の基板面に対してゼロではない角度に向けられた第2の基板面上に位置する第3の磁気検知素子および第4の磁気検知素子と、
前記磁気ターゲットの3次元(3D)位置を示す、前記第1、第2、第3、および第4の磁気検知素子からの情報を提供するように構成された1つ以上の出力接点と、を含む、磁気センサ。 - 前記第1、第2、第3、および第4の磁気検知素子からのデータを受け取り、前記受け取ったデータに基づいて磁場の角度を算出するように構成された処理回路をさらに含む、請求項16に記載の磁気センサ。
- 前記第1の磁気検知素子は、異方性磁気抵抗(AMR)検知素子を含む、請求項16に記載の磁気センサ。
- 前記第1の磁気検知素子は、フルブリッジ構成に配置された磁気抵抗素子を含む、請求項16に記載の磁気センサ。
- 前記第1の基板面は、前記第2の基板面と実質的に直交する、請求項16に記載の磁気センサ。
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US201662417968P | 2016-11-04 | 2016-11-04 | |
US62/417,968 | 2016-11-04 | ||
US15/682,966 | 2017-08-22 | ||
US15/682,966 US10697800B2 (en) | 2016-11-04 | 2017-08-22 | Multi-dimensional measurement using magnetic sensors and related systems, methods, and integrated circuits |
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DE102017125732A1 (de) | 2018-05-09 |
CN108020150A (zh) | 2018-05-11 |
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