JPH0471114U - - Google Patents
Info
- Publication number
- JPH0471114U JPH0471114U JP11395590U JP11395590U JPH0471114U JP H0471114 U JPH0471114 U JP H0471114U JP 11395590 U JP11395590 U JP 11395590U JP 11395590 U JP11395590 U JP 11395590U JP H0471114 U JPH0471114 U JP H0471114U
- Authority
- JP
- Japan
- Prior art keywords
- scale
- signal
- characteristic changing
- reference point
- electromagnetic characteristic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図は本考案の実施例に係る直線位置検出装
置の説明図、第２図は他の実施例の説明図、第３
図はさらに他の実施例の説明図、第４図は基準点
用電気磁気特性変化部によつて区切られた基準区
間に形成する識別マークの他の実施例の説明図で
ある。
１０……スケール、１２……目盛、１８……原
点用電気磁気特性変化部、２０，２２……磁気セ
ンサ、２４……原点検出センサ、３２……方向弁
別回路、３４……アツプダウンカウンタ、４０…
…切替回路、４２……信号検出回路（ワンシヨツ
ト回路）、４４ａ，４４ｂ，４４ｃ，４４ｄ……
基準点用電気磁気特性変化部、４５ａ，４５ｂ，
４５ｃ……基準区間、４６……基準点検出センサ
、５０……位置確認信号出力回路、５４……区間
識別回路。
FIG. 1 is an explanatory diagram of a linear position detection device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of another embodiment, and FIG.
The figure is an explanatory diagram of still another embodiment, and FIG. 4 is an explanatory diagram of another embodiment of an identification mark formed in a reference section divided by a reference point electromagnetic characteristic changing section. DESCRIPTION OF SYMBOLS 10...Scale, 12...Graduation, 18...Electromagnetic characteristic changing unit for origin, 20, 22...Magnetic sensor, 24...Origin detection sensor, 32...Direction discrimination circuit, 34...Up-down counter, 40...
...Switching circuit, 42...Signal detection circuit (one shot circuit), 44a, 44b, 44c, 44d...
Reference point electromagnetic characteristic changing section, 45a, 45b,
45c... Reference section, 46... Reference point detection sensor, 50... Position confirmation signal output circuit, 54... Section identification circuit.
Claims (1)
た目盛を有するスケールと、このスケールと相対
移動可能に配置され、前記目盛を検出する複数の
磁気センサと、この磁気センサの出力信号を計数
するアツプダウンカウンタと、前記複数の磁気セ
ンサの出力信号に基づいて、前記スケールと前記
磁気センサとの相対移動の方向を検知するととも
に、前記アツプダウンカウンタにカウントアツプ
信号またはカウントダウン信号を出力する方向弁
別回路と、前記スケールの前記目盛を設けた範囲
の、前記目盛と異なる部分に形成した原点用電気
磁気特性変化部と、前記スケールと相対移動可能
に配置され、前記原点用電気磁気特性変化部を検
出するとともに、この原点用電気磁気特性変化部
を検出したときに、前記アツプダウンカウンタに
リセツト信号を出力する原点検出センサと、を有
することを特徴とする直線位置検出装置。 (2) 前記原点用電気磁気特性変化部は、前記ス
ケールに形成した凹形状、凸形状または着磁であ
ることを特徴とする請求項１に記載の直線位置検
出装置。 (3) 前記原点検出センサには、このセンサの出
力信号の立ち上がりまたは立ちさがりの予め定め
た一方を検出し、前記アツプダウンカウンタにリ
セツト信号を出力する信号検出回路と、前記方向
弁別回路が出力する方向弁別信号に基づいて切り
替えられ、前記原点検出センサまたは前記信号検
出回路のいずれか一方を前記アツプダウンカウン
タに接続する切替回路とを接続してあることを特
徴とする請求項１または２に記載の直線位置検出
装置。 (4) 電気磁気特性を周期的に変化させて形成し
た目盛を有するスケールと、このスケールと相対
移動可能に配置され、前記目盛を検出する複数の
磁気センサと、この磁気センサの出力信号を計数
するアツプダウンカウンタと、前記複数の磁気セ
ンサの出力信号に基づいて、前記スケールと前記
磁気センサとの相対移動の方向を検知するととも
に、前記アツプダウンカウンタにカウントアツプ
信号またはカウントダウン信号を出力する方向弁
別回路と、前記スケールの前記目盛を設けた範囲
内の、前記目盛と異なる部分に設けられ、目盛と
異なる間隔をもつて形成した複数の基準点用電気
磁気特性変化部によつて区切られるとともに、識
別マークを有する複数の基準区間と、前記スケー
ルと相対移動可能に配置され、前記基準点用電気
磁気特性変化部を検出して前記基準区間の端部を
検知する基準点検出センサと、前記基準点検出セ
ンサが前記各基準点用電気磁気特性変化部のいず
れかを検出したときに、前記基準点検出センサの
出力信号と前記アツプダウンカウンタの出力信号
とに基づいて、位置確認信号を出力する位置確認
信号出力回路と、を有することを特徴とする直線
位置検出装置。 (5) 前記複数の基準点用電気磁気特性変化部は
それそれが異なつた間隔をもつて配置してあり、
前記識別マークは前記各基準点用電気磁気特性変
化部間の目盛を構成している電気磁気特性変化部
であることを特徴とする請求項４に記載の直線位
置検出装置。 (6) 前記複数の基準点用電気磁気特性変化部は
等間隔に配置してあり、前記識別マークは、前記
各基準点用電気磁気特性変化部間に形成した、前
記基準点検出センサによつて検出される電気磁気
特性変化部であることを特徴とする請求項４に記
載の直線位置検出装置。 (7) 前記位置確認信号出力回路は、前記基準点
検出センサが前記基準点用電気磁気特性変化部を
検出したときの、前記アツプダウンカウンタの計
数値が予め定めた値と異なるときに、前記アツプ
ダウンカウンタに計数値を修正するカウント修正
信号を出力することを特徴とする請求項４ないし
６のいずれか１に記載の直線位置検出装置。[Claims for Utility Model Registration] (1) A scale having graduations formed by periodically changing electromagnetic characteristics, and a plurality of magnetic sensors arranged to be movable relative to the scale and detecting the graduations; An up-down counter counts the output signal of the magnetic sensor, and a direction of relative movement between the scale and the magnetic sensor is detected based on the output signals of the plurality of magnetic sensors, and a count-up is added to the up-down counter. a direction discrimination circuit that outputs a signal or a countdown signal; an electromagnetic characteristic changing section for an origin formed in a portion of the scale in which the scale is provided and different from the scale; and arranged movably relative to the scale; A straight line characterized by having an origin detection sensor that detects the electromagnetic characteristic changing section for the origin and outputs a reset signal to the up-down counter when the electromagnetic characteristic changing section for the origin is detected. Position detection device. (2) The linear position detection device according to claim 1, wherein the origin electromagnetic characteristic changing portion is formed in a concave shape, a convex shape, or a magnetized shape formed on the scale. (3) The origin detection sensor includes a signal detection circuit that detects a predetermined rising or falling edge of the output signal of this sensor and outputs a reset signal to the up-down counter, and the direction discrimination circuit that outputs the output signal. 3. The up-down counter is connected to a switching circuit that is switched based on a direction discrimination signal to connect either the origin detection sensor or the signal detection circuit to the up-down counter. The linear position sensing device described. (4) A scale having graduations formed by periodically changing electromagnetic characteristics, a plurality of magnetic sensors arranged to be movable relative to the scale and detecting the graduations, and counting output signals of the magnetic sensors. an up-down counter that detects a direction of relative movement between the scale and the magnetic sensor based on output signals of the plurality of magnetic sensors, and a direction that outputs a count-up signal or a count-down signal to the up-down counter. a discriminator circuit, and a plurality of reference point electromagnetic characteristic changing parts provided at different parts from the scale within the range where the scale is provided and separated by a plurality of reference point electromagnetic characteristic changing parts formed at different intervals from the scale, and , a plurality of reference sections having identification marks; a reference point detection sensor that is arranged to be movable relative to the scale and detects the end of the reference section by detecting the reference point electromagnetic characteristic changing section; When the reference point detection sensor detects any of the electromagnetic characteristic changing parts for each reference point, a position confirmation signal is output based on the output signal of the reference point detection sensor and the output signal of the up-down counter. A linear position detection device characterized by having a position confirmation signal output circuit. (5) The plurality of reference point electromagnetic characteristic changing parts are arranged at different intervals,
5. The linear position detection device according to claim 4, wherein the identification mark is an electromagnetic characteristic changing portion forming a scale between the electromagnetic characteristic changing portions for each reference point. (6) The plurality of electromagnetic characteristic changing parts for reference points are arranged at equal intervals, and the identification mark is detected by the reference point detection sensor formed between the electromagnetic characteristic changing parts for each reference point. 5. The linear position detecting device according to claim 4, wherein the linear position detecting device is an electromagnetic characteristic changing portion that is detected by moving. (7) The position confirmation signal output circuit is configured to output the position confirmation signal when the count value of the up-down counter differs from a predetermined value when the reference point detection sensor detects the reference point electromagnetic characteristic changing section. 7. The linear position detecting device according to claim 4, wherein a count correction signal for correcting the count value is output to the up-down counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990113955U JPH086259Y2 (en) | 1990-10-30 | 1990-10-30 | Linear position detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990113955U JPH086259Y2 (en) | 1990-10-30 | 1990-10-30 | Linear position detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0471114U true JPH0471114U (en) | 1992-06-24 |
| JPH086259Y2 JPH086259Y2 (en) | 1996-02-21 |
Family
ID=31861590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990113955U Expired - Lifetime JPH086259Y2 (en) | 1990-10-30 | 1990-10-30 | Linear position detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH086259Y2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4344291A1 (en) * | 1992-12-24 | 1994-06-30 | Kayaba Industry Co Ltd | Axial position detector for a rod |
| JP2003035564A (en) * | 2001-07-23 | 2003-02-07 | Yaskawa Electric Corp | Absolute position detection encoder and its origin detection method |
| JP2004233339A (en) * | 2003-01-30 | 2004-08-19 | Agilent Technol Inc | Encoder |
| JP2006226909A (en) * | 2005-02-18 | 2006-08-31 | Komatsu Ltd | Cylinder position measuring device |
| JP2007010656A (en) * | 2005-06-27 | 2007-01-18 | General Electric Co <Ge> | Clearance measurement system and operation method |
| JP2007240531A (en) * | 2006-03-08 | 2007-09-20 | Liebherr-France Sas | Localization system of hydraulic pressure cylinder |
| JP2009210389A (en) * | 2008-03-04 | 2009-09-17 | Samutaku Kk | Absolute optical encoder |
| JP2025123685A (en) * | 2024-02-13 | 2025-08-25 | Tdk株式会社 | Magnetic detection device, magnetic detection module, magnetic detection system, gear drive detection device, motor drive detection device and encoder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023104006A1 (en) * | 2023-02-17 | 2024-08-22 | Sick Ag | Method and device for calibrating a position measuring device and device for position measuring |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6088317A (en) * | 1983-09-23 | 1985-05-18 | ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Measuring device |
| JPS60187802A (en) * | 1984-03-07 | 1985-09-25 | Sumitomo Electric Ind Ltd | Detecting circuit of angle |
| JPS6367818U (en) * | 1986-10-20 | 1988-05-07 | ||
| JPS6474411A (en) * | 1987-09-16 | 1989-03-20 | Yamaha Corp | Position detector |
| JPH01239417A (en) * | 1988-03-18 | 1989-09-25 | Fuji Electric Co Ltd | Pulse reading-in circuit for pulse encoder |
-
1990
- 1990-10-30 JP JP1990113955U patent/JPH086259Y2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6088317A (en) * | 1983-09-23 | 1985-05-18 | ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Measuring device |
| JPS60187802A (en) * | 1984-03-07 | 1985-09-25 | Sumitomo Electric Ind Ltd | Detecting circuit of angle |
| JPS6367818U (en) * | 1986-10-20 | 1988-05-07 | ||
| JPS6474411A (en) * | 1987-09-16 | 1989-03-20 | Yamaha Corp | Position detector |
| JPH01239417A (en) * | 1988-03-18 | 1989-09-25 | Fuji Electric Co Ltd | Pulse reading-in circuit for pulse encoder |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4344291A1 (en) * | 1992-12-24 | 1994-06-30 | Kayaba Industry Co Ltd | Axial position detector for a rod |
| JP2003035564A (en) * | 2001-07-23 | 2003-02-07 | Yaskawa Electric Corp | Absolute position detection encoder and its origin detection method |
| JP2004233339A (en) * | 2003-01-30 | 2004-08-19 | Agilent Technol Inc | Encoder |
| JP2006226909A (en) * | 2005-02-18 | 2006-08-31 | Komatsu Ltd | Cylinder position measuring device |
| JP2007010656A (en) * | 2005-06-27 | 2007-01-18 | General Electric Co <Ge> | Clearance measurement system and operation method |
| JP2007240531A (en) * | 2006-03-08 | 2007-09-20 | Liebherr-France Sas | Localization system of hydraulic pressure cylinder |
| JP2009210389A (en) * | 2008-03-04 | 2009-09-17 | Samutaku Kk | Absolute optical encoder |
| JP2025123685A (en) * | 2024-02-13 | 2025-08-25 | Tdk株式会社 | Magnetic detection device, magnetic detection module, magnetic detection system, gear drive detection device, motor drive detection device and encoder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH086259Y2 (en) | 1996-02-21 |
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