JPS59116552A - Rotary sensor - Google Patents
Rotary sensorInfo
- Publication number
- JPS59116552A JPS59116552A JP22956282A JP22956282A JPS59116552A JP S59116552 A JPS59116552 A JP S59116552A JP 22956282 A JP22956282 A JP 22956282A JP 22956282 A JP22956282 A JP 22956282A JP S59116552 A JPS59116552 A JP S59116552A
- Authority
- JP
- Japan
- Prior art keywords
- flexible printed
- rotation
- coil
- circuit board
- printed circuit
- 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
- 239000004065 semiconductor Substances 0.000 claims abstract description 11
- 230000003321 amplification Effects 0.000 claims abstract description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 7
- 230000005674 electromagnetic induction Effects 0.000 claims description 4
- 239000003566 sealing material Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005530 etching Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 229920003002 synthetic resin Polymers 0.000 abstract description 3
- 239000000057 synthetic resin Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229920006122 polyamide resin Polymers 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は回転を検出する回転センサ、特に電磁誘導型の
回転センサに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotation sensor that detects rotation, and particularly to an electromagnetic induction type rotation sensor.
電磁誘導型の回転センサにおけるピンクアンプコイルは
回転による磁来変化にて回転に応じた電気信号としての
電圧を検知可能なレベル迄に発生しなけｎはならないこ
とから１１巻回数は数千ターンから１万タ一ン程度を要
し、その巻線工程に時間を要し、生産上不利な欠点を有
していた。The pink amplifier coil in an electromagnetic induction type rotation sensor must generate a voltage as an electrical signal corresponding to rotation to a detectable level due to changes in magnetic flux due to rotation, so the number of turns of 11 turns is from several thousand turns. The winding process required about 10,000 tanns and was time-consuming, which was disadvantageous in terms of production.
そこで本発明は、ピンクアップコイルには巻線工程を要
せず製作できる回転センサ全行ることを目的とする。Therefore, an object of the present invention is to provide a rotation sensor that can be manufactured without requiring a winding process in a pink-up coil.
当該目的全達成するために、本発明はフレキシブルプリ
ント基板をエツチングすることによりフラット状のピッ
クアンプコイルを作成するとともに、そのビックアンプ
コイルに生じた電気信号を増幅して回転信号を出力する
増幅する増幅用半導体回路を前記フレキシブルプリント
基板！／ＩＣ形成したことを構成の要旨とする。In order to achieve all of the above objects, the present invention creates a flat pick amplifier coil by etching a flexible printed circuit board, and also amplifies the electric signal generated in the big amplifier coil to output a rotation signal. Flexible printed circuit board for amplification semiconductor circuit! /IC formation is the gist of the configuration.
従って、本発明はこの構成により、ピックアップコイル
はフレキシブル基板をエツチングして形成することから
、巻線工程は皆無となり、しかもそのフレキシブルプリ
ント基板にて形成した比較的巻回数の少い７ラソト状コ
イルにて発生する回転に応じた電気信号の電圧をそのフ
レキシブルプリント基板上に設けた増幅用半導体回路に
て増幅して回転信号として出力することから、検知可能
な出力レベルＫ ＩＩＪ達させていることから、回転セ
ンサとして使用用能となり所期の目的を達成するととも
に、ピンクアップコイル及び増幅用半導体回路両者ヲフ
レキシブルプリント基板上形成できてアンセンブリ化で
きることからその取扱いも容易となること２．及びフレ
キシブルプリント基板はその可撓性により、狭小な空間
内に装着できることから回転センサの小型化にも有利と
なる等実用上きわめて優汎てなる効果を奏するものであ
る。Therefore, with this configuration of the present invention, since the pickup coil is formed by etching the flexible printed circuit board, there is no winding process, and moreover, the 7-round coil is formed from the flexible printed circuit board with a relatively small number of windings. The voltage of the electric signal corresponding to the rotation generated by the motor is amplified by the amplification semiconductor circuit provided on the flexible printed circuit board and output as a rotation signal, so that the detectable output level KIIJ is reached. Therefore, it can be used as a rotation sensor and achieves the intended purpose, and since both the pink-up coil and the amplifying semiconductor circuit can be formed on a flexible printed circuit board and assembled into an assembly, it is easy to handle.2. Due to its flexibility, the flexible printed circuit board can be installed in a narrow space, which is advantageous for downsizing the rotation sensor, and has extremely excellent practical effects.
更に本発明では好ましくは、増幅用半導体回路は、トラ
ンジスタを具備し、そのベースバイアス抵抗をトランジ
スタのベース−コレクタ間に接続し、コレクタに接続す
るプルアップ用抵抗はセンサ外方にて接続することとし
て、外部接続用端子は２本とすれば、回転センサと外部
との接続を簡単化できる。そして本発明では好ましくけ
、外部接続用電気端子はディスク状のゴムシール材にて
気密的にシールすτＬは、エホキシ樹脂等の充栢にてシ
ールする場合に比べて、瞬時に行うことかでき、組立時
間ケ短縮できるものである。Furthermore, in the present invention, preferably, the amplifying semiconductor circuit includes a transistor, the base bias resistor of which is connected between the base and collector of the transistor, and the pull-up resistor connected to the collector connected outside the sensor. If the number of external connection terminals is two, the connection between the rotation sensor and the outside can be simplified. Preferably, in the present invention, the electrical terminal for external connection can be airtightly sealed with a disc-shaped rubber sealing material. τL can be instantaneously sealed, compared to the case of sealing with filling with epoxy resin or the like. This can shorten the assembly time.
以下本発明肺贋の一実１ｍ１１例を図面に基づいて説明
する。Hereinafter, 1 m 11 examples of the present invention will be explained based on the drawings.
電磁誘導型の回転センサ１０は合成樹脂製のハウジング
１１因に装着ざ几た永久磁石１２に一端が吸着された磁
性体なる鉄製のヨーク１３の他端に形成した突起部１４
が第４図示の如く回転検出対象物なる回転体１５ととも
に一体回転する各歯１６に対向可能に配設され、回転体
１５０回転により、永久磁石１２にて形成される磁気回
路におけるヨーク１８の突起部１４と各歯１６間に形成
した磁路空隙を変化させ、その変化にてハウジング１１
内に装着したピンクアンプコイル１７に回転信号なる’
ｅ（ｔＬＩＥを換起して回転検出外ｊ象物なる回転体１
５の回転に応じた電気信号全出力する。The electromagnetic induction type rotation sensor 10 includes a protrusion 14 formed on the other end of a magnetic iron yoke 13, one end of which is attracted to a permanent magnet 12 mounted on a synthetic resin housing 11.
are arranged so as to be able to face each tooth 16 which rotates integrally with the rotating body 15 which is the rotation detection target as shown in the fourth figure, and the protrusion of the yoke 18 in the magnetic circuit formed by the permanent magnet 12 due to the rotation of the rotating body 150. By changing the magnetic path gap formed between the portion 14 and each tooth 16, the housing 11
A rotation signal is sent to the pink amplifier coil 17 installed inside.
e(tLIE, the rotating body 1 is an object outside the detection of rotation.
Full output of electrical signals according to the rotation of 5.
ピンクアップコイル１７は例えばポリアミド樹脂にて形
成した一枚の）Ｖキシプルプリント基板（一般にＦＰＣ
と呼ばれている）１８上に増幅用Ｑ 、 ｌ ＃Ｉとし
てらせん状にフレキシブルプリント基板１８をエンチン
グして形成すｎは、第５図及び第６図に示す大きさの各
ピンクアンプコイル１７はフレキシブルプリント基板１
８の表裏面各側に略２５ターンづつ形成でき、表ｍ面合
計して略５０クーンのピックアップコイル１７ｉ形成す
ることかできるものである。第５図に示すフレキシブル
プリント基板１８にて形成した各ビックアンプコイル１
７．１７はフレキシブルプリント基板１８を夫々部分２
０．２１ｉ折り曲げて第１図示の如くハウジング１１内
にピックアップコイル１７゜１７を重ねて装着した時に
各ピックアップコイル１７．１７は夫々同一の巻方向を
もって直列接続されるパターンを有する。The pink-up coil 17 is made of, for example, a single V xyple printed circuit board (generally FPC) made of polyamide resin.
n formed by etching the flexible printed circuit board 18 in a spiral shape as an amplification Q, l #I on the pink amplifier coil 17 having the size shown in FIGS. 5 and 6. is flexible printed circuit board 1
Approximately 25 turns can be formed on each side of the front and back surfaces of the coil 8, and a total of approximately 50 pickup coils 17i can be formed on the front and m sides. Each big amplifier coil 1 formed from a flexible printed circuit board 18 shown in FIG.
7.17 shows the flexible printed circuit board 18 as part 2.
When the pickup coils 17.17 are folded by 0.21i and mounted in a stacked manner in the housing 11 as shown in the first figure, the pickup coils 17.17 have a pattern in which they are connected in series with the same winding direction.
第６図に示すピンクアップコイル１７はフレキシブルプ
リント基板１８の表裏面両側に形成した場合を示し、フ
レキシブルプリント基板１８の部分２０を第５図示のフ
レキシブルプリント基板１８と同様に第１図示の如く折
り曲げてハウジング１１内に装着されるもので、その装
着において、フレキシブルプリント基板１８の表裏面両
側に形成したビックアンプコイル１７は夫々同一の巻方
向ヲもって直列接続さｎるパターンを有するものである
。第６図に示したフレキシブルプリント基板１８も第５
図に示す半導体増幅回路１９を同様に配置されるもので
あり、第６図では省略しである。ピンクアップコイル１
７に生じた電圧を増幅して回転信号音出力する増幅用半
導体回路１９は第７図示の如く、ピックアップコイル１
７の一端はカンプリングコンデンサ２２を介してＮＰＮ
型のトランジスタ２８のベース端に接続され、またビッ
クアンプコイル１７の他端はトランジスタ２３の工ミン
ク端に接続されるとともに、トランジスタ２８のベース
バイアス抵抗２４．’ｆｆ ）ランジスタ２３のベース
−コレクタ間に接続した回路構成でフレキシブルプリン
ト基板１８上に形成されている。そし７てトランジスタ
２３の各コレクタ端、エミンタ端に接続さｔｚたフレキ
シブルプリント基板１８の銅箔２５，２６（第５図示）
はハウジング１１内に第１図示の９■＜装置さ汎た通常
のプリンＩ−基板２７を介して外部接続用′市気端子ケ
構成する２本のり一ドＪｉ ２８ 、２９にて、ハウジ
ング１１の外方へ引き出される。そしてリード線２８け
ハウジング１１の外方に設けた外部電気回路によりリー
ド線２８側にはプルアップ抵抗３０を介して電源篭庄Ｖ
ＣＣか供給ざｆＬ、またリード線２９側はアースされる
。The pink-up coil 17 shown in FIG. 6 is formed on both the front and back surfaces of the flexible printed circuit board 18, and the portion 20 of the flexible printed circuit board 18 is bent as shown in the first diagram in the same way as the flexible printed circuit board 18 shown in FIG. In this installation, the big amplifier coils 17 formed on both the front and back surfaces of the flexible printed circuit board 18 have a pattern in which they are connected in series with the same winding direction. The flexible printed circuit board 18 shown in FIG.
The semiconductor amplifier circuit 19 shown in the figure is arranged in the same way, and is omitted in FIG. 6. pink up coil 1
As shown in FIG.
One end of 7 is NPN via compling capacitor 22.
The other end of the big amplifier coil 17 is connected to the base end of the transistor 28, and the other end of the big amplifier coil 17 is connected to the base end of the transistor 23, and the base bias resistor 24. 'ff) A circuit configuration connected between the base and collector of the transistor 23 is formed on the flexible printed circuit board 18. 7) Copper foils 25 and 26 of the flexible printed circuit board 18 connected to each collector end and emitter end of the transistor 23 (as shown in the fifth figure)
The device is mounted inside the housing 11 as shown in FIG. is pulled outward. An external electric circuit with 28 lead wires is provided outside the housing 11, and a power source V is connected to the lead wire 28 side via a pull-up resistor 30.
CC is supplied to fL, and the lead wire 29 side is grounded.
なお第１図において、３１け合成樹脂製のスリーブ、３
２はシールリング、８８はディスク状のゴムシールでリ
ードｇ２ｓ、２９が圧挿される孔を有してなり、リード
線２８．２９か引き出されるハウジング１１の閉口部に
圧入さｎ１ネジ３４により、ハウジング１１へ螺着され
る鉄製の蓋３５にて、強固に保持されてシール性能を発
揮するとともに、ヨーク１３．永久磁石Ｉ２のガタ防止
を行うものである。またハウジング１１には第１図示の
如く金属製のスリーブ３６が配設され、そのスリーブ８
６の穴３７はセンサ１１を固定する取付ボルト（図示略
）の挿通穴である。In Fig. 1, 31 synthetic resin sleeves, 3
2 is a seal ring, and 88 is a disk-shaped rubber seal having a hole into which the leads g2s and 29 are press-fitted. The iron lid 35 that is screwed onto the yoke 13 is firmly held and exhibits sealing performance. This is to prevent rattling of the permanent magnet I2. Further, the housing 11 is provided with a metal sleeve 36 as shown in the first figure, and the sleeve 8
Hole 37 6 is an insertion hole for a mounting bolt (not shown) for fixing sensor 11 .
第１図は本発明装置の一実施例を示ｉ−Ｖ５ｒ面図、第
２図は第１図の左側面図、第８図は第１図の右側面図、
第４図は本発明装置と回転測定対象物との取付位置関係
を示す説明図、第５図は本発明装置におけるフレキシブ
ルプリント基板の構成の一例を示す説明図、第６図は、
本発明装置におりるフレキシブルプリント基板の構成の
他の例を示す説明図、第７図は、本発明装置における増
幅用半導体回路を示す電気回路図である。
１０・・・回頓センサ、１７・・・ビックアンプコイル
、１８・・・フレキシブルプリント基板、１９・・・増
幅用半導体回路
第４図FIG. 1 is an i-V5r side view showing an embodiment of the device of the present invention, FIG. 2 is a left side view of FIG. 1, FIG. 8 is a right side view of FIG. 1,
FIG. 4 is an explanatory diagram showing the mounting positional relationship between the device of the present invention and a rotating object to be measured, FIG. 5 is an explanatory diagram showing an example of the configuration of a flexible printed circuit board in the device of the present invention, and FIG.
FIG. 7, an explanatory diagram showing another example of the configuration of the flexible printed circuit board included in the device of the present invention, is an electric circuit diagram showing the amplifying semiconductor circuit in the device of the present invention. 10...Return sensor, 17...Big amplifier coil, 18...Flexible printed circuit board, 19...Semiconductor circuit for amplification Fig. 4
Claims (1)
いて、ピンクアンプコイルをフレキシブルプリント基板
にて形成するとともに前記ピックアップコイルに生じた
Ｉｆｔ気信号を増幅して回転信号全出力１゛る増幅用半
導体回路を該フレキシブルプリント基板上に設けた回転
センサ。 ２、前記増幅用半導体回路は、トランジスタを具備し、
そのベースバイアス抵抗をトランジスタのベース−コレ
クタ間に接続し、コレクタに接続するプルアップ用抵抗
はセンサ外方にて接続することとして、外部接続用電気
端子を２本としたことを特徴とする特許請求の範囲第１
項記載の回転センサ。 ３、前記外部接続用電気端子はディスク状のゴムシール
材にて気密的にシールしたこと全特徴とする特許請求の
範囲第２項記載の回転センサ。[Claims] (1) In a 1!11 rotation sensor that detects rotation by electromagnetic induction, a pink amplifier coil is formed of a flexible printed circuit board, and the Ift signal generated in the pickup coil is amplified to generate a rotation signal. A rotation sensor in which an amplifying semiconductor circuit with a total output of 1 is provided on the flexible printed circuit board. 2. The amplification semiconductor circuit includes a transistor,
This patent is characterized in that the base bias resistor is connected between the base and collector of the transistor, and the pull-up resistor connected to the collector is connected outside the sensor, so that there are two electrical terminals for external connection. Claim 1
Rotation sensor described in section. 3. The rotation sensor according to claim 2, wherein the external connection electrical terminal is hermetically sealed with a disc-shaped rubber sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22956282A JPS59116552A (en) | 1982-12-24 | 1982-12-24 | Rotary sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22956282A JPS59116552A (en) | 1982-12-24 | 1982-12-24 | Rotary sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59116552A true JPS59116552A (en) | 1984-07-05 |
| JPH0310079B2 JPH0310079B2 (en) | 1991-02-12 |
Family
ID=16894111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22956282A Granted JPS59116552A (en) | 1982-12-24 | 1982-12-24 | Rotary sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59116552A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0805339A1 (en) * | 1996-04-29 | 1997-11-05 | CSEM Centre Suisse d'Electronique et de Microtechnique S.A. - Recherche et Développement | Varying magnetic field position and movement detector |
| KR20030021695A (en) * | 2001-09-07 | 2003-03-15 | 씨멘스브이디오한라 주식회사 | Gear tooth sensor for automobile |
| JP2018124273A (en) * | 2017-01-30 | 2018-08-09 | ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツングＤｒ． Ｊｏｈａｎｎｅｓ Ｈｅｉｄｅｎｈａｉｎ Ｇｅｓｅｌｌｓｃｈａｆｔ Ｍｉｔ Ｂｅｓｃｈｒａｎｋｔｅｒ Ｈａｆｔｕｎｇ | Sensor for measuring position |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5720162A (en) * | 1980-07-09 | 1982-02-02 | Hitachi Ltd | Tachogenerator for controlling rotation of motor |
-
1982
- 1982-12-24 JP JP22956282A patent/JPS59116552A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5720162A (en) * | 1980-07-09 | 1982-02-02 | Hitachi Ltd | Tachogenerator for controlling rotation of motor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0805339A1 (en) * | 1996-04-29 | 1997-11-05 | CSEM Centre Suisse d'Electronique et de Microtechnique S.A. - Recherche et Développement | Varying magnetic field position and movement detector |
| US6043644A (en) * | 1996-04-29 | 2000-03-28 | Cesm Centre Suisse D'electronique Et De Microtechnique Sa - Recherche Et Developpement | Device for detecting position and movement by using magnetic field variation |
| CH690934A5 (en) * | 1996-04-29 | 2001-02-28 | Suisse Electronique Microtech | A position detection and motion in magnetic field variation. |
| KR20030021695A (en) * | 2001-09-07 | 2003-03-15 | 씨멘스브이디오한라 주식회사 | Gear tooth sensor for automobile |
| JP2018124273A (en) * | 2017-01-30 | 2018-08-09 | ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツングＤｒ． Ｊｏｈａｎｎｅｓ Ｈｅｉｄｅｎｈａｉｎ Ｇｅｓｅｌｌｓｃｈａｆｔ Ｍｉｔ Ｂｅｓｃｈｒａｎｋｔｅｒ Ｈａｆｔｕｎｇ | Sensor for measuring position |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0310079B2 (en) | 1991-02-12 |
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