JP6692459B2 - 傾き耐性を有するリニア変位センサ - Google Patents
傾き耐性を有するリニア変位センサ Download PDFInfo
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- JP6692459B2 JP6692459B2 JP2018560543A JP2018560543A JP6692459B2 JP 6692459 B2 JP6692459 B2 JP 6692459B2 JP 2018560543 A JP2018560543 A JP 2018560543A JP 2018560543 A JP2018560543 A JP 2018560543A JP 6692459 B2 JP6692459 B2 JP 6692459B2
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- 238000006073 displacement reaction Methods 0.000 title claims description 52
- 238000012937 correction Methods 0.000 claims description 128
- 238000005259 measurement Methods 0.000 claims description 72
- 230000001939 inductive effect Effects 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 description 14
- 230000036544 posture Effects 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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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
- G01D5/20—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
- G01D5/202—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 movable a non-ferromagnetic conductive element
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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
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/023—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object
-
- 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
- G01D5/24471—Error correction
- G01D5/24485—Error correction using other sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
- B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
- B62K25/06—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/04—Ratio selector apparatus
- F16H59/044—Ratio selector apparatus consisting of electrical switches or sensors
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
- G05G1/38—Controlling members actuated by foot comprising means to continuously detect pedal position
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
本発明は、リニア変位センサ及び斯かるリニア変位センサを用いて相対位置を求める方法に関する。
渦電流方式に基づくセンサが公知である。測定信号は、導電性のトラックの上方に配置された測定コイルを含む振動回路の周波数変化であり得る。当該導電性のトラックは、測定コイルと当該導電性のトラックとの重畳部が測定路に沿って変化するように、測定路に沿ってその幅を変化させる。測定コイルは、導電性のトラック内に渦電流を誘導し、この渦電流が測定コイルのインダクタンス変化をもたらす。
発明の利点
本発明の実施形態により、有利には、特に小さな構造スペースしか有さない、誤差に対してロバストな変位センサを提供することができる。
図1Aには、リニア変位センサ10の概略的な断面図、図1Bには、その概略的な上面図、図1Cには、概略的な下面図が示されている。図1Aから見て取れるように、リニア変位センサ10は、一方の面に測定トラック16を被着し、反対側の面に2つの補正トラック18を被着した、回路板14の形態の誘導素子12を含む。測定トラック16及び補正トラック18は、回路板14のプラスチック基板上にメタライゼーション層として構成することが可能である。
f0=1/(2π√LC)
に従って変化する。
Claims (10)
- リニア変位センサ(10)であって、
前記リニア変位センサ(10)は、
測定路(M)に沿って延在する導電性の測定トラック(16)を有する第1の面と、前記第1の面の反対側にあり、かつ、前記測定路(M)に沿って延在する少なくとも1つの導電性の補正トラック(18)を有する第2の面とを有する誘導素子(12)と、
前記誘導素子(12)の前記第1の面の上方に配置されており、かつ、前記測定路(M)に沿って前記誘導素子(12)に対して相対的に可動の測定センサ素子(20)であって、
前記測定トラック(16)の上方に配置された測定コイル(22)を含み、前記測定コイル(22)の誘導量が前記測定路(M)上の前記測定コイル(22)の位置(y)に依存するように、前記測定コイル(22)と前記測定トラック(16)との重畳部が前記測定路(M)に沿って変化する、測定センサ素子(20)と、
前記測定センサ素子(20)に固定に接続されており、かつ、前記誘導素子(12)の前記第2の面の上方に配置されている、補正センサ素子(21)と
を有し、
前記補正センサ素子(21)は、前記補正トラック(18)との重畳部が前記測定路(M)に沿って一定である、少なくとも1つの補正コイル(24)を有する、
ことを特徴とするリニア変位センサ(10)。 - 前記誘導素子(12)は、前記第1の面に前記測定トラック(16)を配置し、かつ、前記第2の面に導体路としての前記少なくとも1つの補正トラック(18)を配置した、回路板(14)を含む、
請求項1に記載のリニア変位センサ(10)。 - 前記測定センサ素子(20)が、プレーナコイルとして構成された前記測定コイル(22)を上部に有する回路板(26)を含む、
及び/又は、
前記補正センサ素子(21)が、プレーナコイルとして構成された前記少なくとも1つの補正コイル(24)を上部に有する回路板(28)を含む、
請求項1又は2に記載のリニア変位センサ(10)。 - 前記誘導素子(12)は、前記第2の面上に並んで配置された2つの補正トラック(18)を有し、
前記補正センサ素子(21)は、並んで配置された2つの補正コイル(24)を有する、
請求項1乃至3のいずれか一項に記載のリニア変位センサ(10)。 - 前記補正コイル(24)は、前記測定コイル(22)よりも小さな幅を有する、
請求項1乃至4のいずれか一項に記載のリニア変位センサ(10)。 - 前記測定コイル(22)、前記測定トラック(16)、前記少なくとも1つの補正トラック(18)及び前記少なくとも1つの補正コイル(24)は、観察方向(z)において前記誘導素子(12)に対して直交するように重畳している、
請求項1乃至5のいずれか一項に記載のリニア変位センサ(10)。 - 前記測定トラック(16)は、前記測定路(M)に沿って先細となっている、
及び/又は、
前記測定トラック(16)は、前記測定路(M)に沿って前記測定コイル(22)の幅の20%の最小幅を有する、
請求項1乃至6のいずれか一項に記載のリニア変位センサ(10)。 - 前記少なくとも1つの補正トラック(18)は、前記測定路(M)に沿って一定の幅を有する、
及び/又は、
前記少なくとも1つの補正トラック(18)は、前記補正コイル(24)の幅の50%未満の幅を有する、
請求項1乃至7のいずれか一項に記載のリニア変位センサ(10)。 - 前記少なくとも1つの補正トラック(18)は、対応する前記補正コイル(24)の中央に対してずれて配置されている、
請求項1乃至8のいずれか一項に記載のリニア変位センサ(10)。 - 請求項1乃至9のいずれか一項に記載のリニア変位センサ(10)の測定センサ素子(20)と誘導素子(12)との相対位置(y)を求める方法であって、
当該方法は、
前記誘導素子(12)による測定コイル(22)及び少なくとも1つの補正コイル(24)の誘導量に依存する周波数を有する交流電圧を、前記測定コイル(22)及び前記少なくとも1つの補正コイル(24)にそれぞれ通電することと、
前記少なくとも1つの補正コイル(24)の少なくとも1つの補正周波数信号(46)を測定することと、
前記誘導素子(12)から前記少なくとも1つの補正コイル(24)までの少なくとも1つの距離を各補正周波数信号(46)から求めることと、
前記測定コイル(22)の測定周波数信号(42)を測定することと、
前記少なくとも1つの補正コイル(24)の、求められた少なくとも1つの距離に基づいて、前記測定周波数信号を修正することと、
修正された測定周波数信号(44)から、相対位置(y)を求めることと、
を含む、方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016208644.8A DE102016208644A1 (de) | 2016-05-19 | 2016-05-19 | Kipptoleranter Linearwegsensor |
DE102016208644.8 | 2016-05-19 | ||
PCT/EP2017/060594 WO2017198468A1 (de) | 2016-05-19 | 2017-05-04 | Kipptoleranter linearwegsensor |
Publications (2)
Publication Number | Publication Date |
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JP2019518949A JP2019518949A (ja) | 2019-07-04 |
JP6692459B2 true JP6692459B2 (ja) | 2020-05-13 |
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ID=58668903
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Application Number | Title | Priority Date | Filing Date |
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JP2018560543A Expired - Fee Related JP6692459B2 (ja) | 2016-05-19 | 2017-05-04 | 傾き耐性を有するリニア変位センサ |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190316938A1 (ja) |
EP (1) | EP3458812B1 (ja) |
JP (1) | JP6692459B2 (ja) |
DE (1) | DE102016208644A1 (ja) |
WO (1) | WO2017198468A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2019536952A (ja) * | 2016-10-17 | 2019-12-19 | ティーアールダブリュー・オートモーティブ・ユーエス・エルエルシー | ブレーキパッド摩耗センサ |
WO2019224585A1 (en) | 2018-05-24 | 2019-11-28 | Bosch Car Multimedia Portugal, S.A. | Linear position sensor |
WO2019224586A1 (en) | 2018-05-24 | 2019-11-28 | Bosch Car Multimedia Portugal, S.A. | Linear position sensor |
DE102020119967A1 (de) | 2020-07-29 | 2022-02-03 | Schaeffler Technologies AG & Co. KG | Sensoranordnung zur Linearwegerfassung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5187475A (en) * | 1991-06-10 | 1993-02-16 | Honeywell Inc. | Apparatus for determining the position of an object |
DE19804414C2 (de) * | 1998-02-05 | 2000-08-24 | Micro Epsilon Messtechnik | Induktiver Weg-Sensor |
DE20009335U1 (de) * | 2000-05-24 | 2001-10-04 | Gebhard Balluff Fabrik feinmechanischer Erzeugnisse GmbH & Co, 73765 Neuhausen | Wegmeßsystem |
DE102004033083A1 (de) | 2004-07-08 | 2006-01-26 | Robert Bosch Gmbh | Wirbelstromsensor zur kontinuierlichen Weg- oder Winkelmessung |
DE202004019489U1 (de) * | 2004-12-17 | 2005-05-25 | Cherry Gmbh | Induktive Sensoreinheit |
US7449878B2 (en) * | 2005-06-27 | 2008-11-11 | Ksr Technologies Co. | Linear and rotational inductive position sensor |
EP1884749B1 (de) * | 2006-07-31 | 2012-05-02 | ZF Friedrichshafen AG | Induktive Positions- oder Winkelmesseinrichtung |
US7719263B2 (en) * | 2006-11-22 | 2010-05-18 | Zf Friedrichshafen Ag | Inductive position measuring device or goniometer |
US20080284554A1 (en) * | 2007-05-14 | 2008-11-20 | Thaddeus Schroeder | Compact robust linear position sensor |
US20130090890A1 (en) * | 2011-10-10 | 2013-04-11 | Advanced Sensor Technology Limited | Absolute position measuring device and method |
JP2013246051A (ja) * | 2012-05-25 | 2013-12-09 | Panasonic Corp | 変位検出装置 |
-
2016
- 2016-05-19 DE DE102016208644.8A patent/DE102016208644A1/de not_active Withdrawn
-
2017
- 2017-05-04 EP EP17721147.1A patent/EP3458812B1/de active Active
- 2017-05-04 JP JP2018560543A patent/JP6692459B2/ja not_active Expired - Fee Related
- 2017-05-04 US US16/303,035 patent/US20190316938A1/en not_active Abandoned
- 2017-05-04 WO PCT/EP2017/060594 patent/WO2017198468A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
EP3458812B1 (de) | 2020-04-15 |
WO2017198468A1 (de) | 2017-11-23 |
US20190316938A1 (en) | 2019-10-17 |
JP2019518949A (ja) | 2019-07-04 |
EP3458812A1 (de) | 2019-03-27 |
DE102016208644A1 (de) | 2017-11-23 |
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