JPH0254483B2 - - Google Patents
Info
- Publication number
- JPH0254483B2 JPH0254483B2 JP56202834A JP20283481A JPH0254483B2 JP H0254483 B2 JPH0254483 B2 JP H0254483B2 JP 56202834 A JP56202834 A JP 56202834A JP 20283481 A JP20283481 A JP 20283481A JP H0254483 B2 JPH0254483 B2 JP H0254483B2
- Authority
- JP
- Japan
- Prior art keywords
- stator
- rotor
- magnetic drum
- guide pin
- rotation angle
- 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.)
- Expired - Lifetime
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Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
Description
【発明の詳細な説明】
本発明は回転角度検出装置、特にその取付け調
整の簡易化及び厚み寸法の小型化を図るための改
良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotation angle detection device, and particularly to an improvement for simplifying the installation and adjustment and reducing the thickness.
従来の磁気式回転角度検出装置には、機構上大
別して第１図及び第２図に示すような２種の取付
け調整方式のものがある。 2. Description of the Related Art Conventional magnetic rotation angle detection devices are roughly classified mechanically into two types of attachment adjustment methods as shown in FIGS. 1 and 2.
即ち、第１図の方式によれば、ロータ側となる
磁気ドラム１と再生ヘツド２とを分離しておき、
磁気ドラム１を回転角度検出装置を取付けるべき
回転軸３に芯出し取付け後、磁気ヘツド２を磁気
ドラム１に対して位置決め固定する。 That is, according to the method shown in FIG. 1, the magnetic drum 1 on the rotor side and the reproducing head 2 are separated,
After centering and attaching the magnetic drum 1 to the rotating shaft 3 on which the rotation angle detection device is to be attached, the magnetic head 2 is positioned and fixed with respect to the magnetic drum 1.
また第２図の方式では、回転軸３の軸受４、軸
受部材７，８，９を有するハウジング６内におい
て、磁気ドラム１を回転軸３に取付け、該ドラム
に対してヘツド取付け部材５により磁気ヘツド２
を位置決め固定して、磁気ドラムと磁気ヘツドと
を一体化している。 In addition, in the method shown in FIG. 2, the magnetic drum 1 is attached to the rotating shaft 3 in a housing 6 having a bearing 4 of the rotating shaft 3 and bearing members 7, 8, and 9. head 2
The magnetic drum and magnetic head are integrated by positioning and fixing the magnetic drum.
しかるに、第１図の従来方式では、磁気ヘツド
２の取付けに際し、オツシロスコープによつて該
ヘツドからの再生信号を観測しながら、磁気ドラ
ム１に対するギヤツプ、アジマス及びアオリなど
を調整して位置決め固定する必要があり、取付け
調整が面倒で時間がかかる欠点がある。 However, in the conventional method shown in FIG. 1, when installing the magnetic head 2, the gap, azimuth, tilt, etc. with respect to the magnetic drum 1 are adjusted while observing the reproduction signal from the head using an oscilloscope to fix the position. The disadvantage is that installation and adjustment is troublesome and time-consuming.
また第２図の従来方式によると、ハウジング６
内に軸受機構を有するので、厚み寸法を小さくす
るのが困難である。 Furthermore, according to the conventional method shown in FIG.
Since it has a bearing mechanism inside, it is difficult to reduce the thickness dimension.
本発明は上述した従来方式の欠点を改良するた
めになされたもので、角度目盛が記録されている
ロータ側磁気ドラムと検出部が配設されるステー
タとの相対回転角度を検出する装置において、上
記磁気ドラムとステータとの相対位置関係を保持
したまま軸方向に相対変位が可能となるように、
前記ステータと磁気ドラムとを貫通する少なくと
も２個のガイドピンを設けた構成に特徴を有する
ものである。 The present invention has been made in order to improve the drawbacks of the above-mentioned conventional method, and is an apparatus for detecting the relative rotation angle between the rotor-side magnetic drum on which the angle scale is recorded and the stator on which the detection section is disposed. In order to enable relative displacement in the axial direction while maintaining the relative positional relationship between the magnetic drum and the stator,
The magnetic drum is characterized by a structure in which at least two guide pins are provided that pass through the stator and the magnetic drum.
以下、図面に示す実施例を参照して本発明を説
明する。第３図ａ，ｂ，ｃは円周面に磁気格子の
形成されているロータ側磁気ドラムと再生ヘツド
とから成る公知の磁気式回転角度検出装置に本発
明を適用した実施例を示す。同図において、１は
ロータ側の磁気ドラム、２はステータ、３は検出
部である再生ヘツドであり、再生ヘツド３は磁気
ドラム１に対し、その出力信号を観測することに
より、位置決めしてステータ２に固定されるもの
である。 The present invention will be described below with reference to embodiments shown in the drawings. 3a, b, and c show an embodiment in which the present invention is applied to a known magnetic rotation angle detecting device comprising a rotor-side magnetic drum having a magnetic grating formed on its circumferential surface and a reproducing head. In the figure, 1 is a magnetic drum on the rotor side, 2 is a stator, and 3 is a reproducing head which is a detection unit.The reproducing head 3 is positioned with respect to the magnetic drum 1 by observing its output signal, and is set to the stator. 2.
４，４′はガイドピンであつて、磁気ドラム１
とステータ２との位置決めに使用される平行ピン
部４1と、該ピン部の抜け落ち防止と抜き差しを
容易にするネジ部４2と、ガイドピン全体の回転
操作を容易にするために２面フラツト加工を施し
た頭部４3より成る。 4 and 4' are guide pins, which are attached to the magnetic drum 1.
A parallel pin part 41 used for positioning the guide pin with the stator 2, a threaded part 42 to prevent the pin part from falling off and to facilitate insertion and removal, and a two-sided flat part to facilitate rotation of the entire guide pin. It consists of 4 3 processed heads.
また、磁気ドラム１とステータ２には両者を貫
通するように一体加工されたリーマ穴４4，４5が
円周方向に180゜対向して穿設されている。 Further, reamed holes 4 4 and 4 5 are formed in the magnetic drum 1 and the stator 2 so as to be integrally machined so as to penetrate through both, and are opposed to each other by 180 degrees in the circumferential direction.
磁気ドラム１とステータ２は、その組立て時に
ボルト１０により締め付け固定されるが、この
際、磁気ドラム１のネジ部１１によりガイドピン
４の平行ピン部４1をガタなく磁気ドラム１のリ
ーマ穴４4からステータ２のリーマ穴４5まで挿入
して、磁気ドラム１とステータ２との位置決めが
行われる。 The magnetic drum 1 and the stator 2 are tightened and fixed with bolts 10 during assembly. At this time, the threaded portion 11 of the magnetic drum 1 allows the parallel pin portion 4 1 of the guide pin 4 to be inserted into the reamed hole 4 of the magnetic drum 1 without play. 4 to the reamed holes 4 to 5 of the stator 2 to position the magnetic drum 1 and the stator 2.
上記構成の回転角度検出装置は、次のようにし
て組立てるものである。 The rotation angle detection device having the above configuration is assembled as follows.
１ ロータ側磁気ドラム１とステータ２との間の
相互位置を保持し、ボルト１０を用いて、両者
を予め一体化する。1. Maintain the mutual position between the rotor-side magnetic drum 1 and the stator 2, and use bolts 10 to integrate them in advance.
２ 上記の状態で、両者を貫通するように加工さ
れたリーマ穴４4，４5にガイドピン４，４′を
挿入する。その場合、ネジ部４2で、ガイドピ
ンの抜け落ちは防止される。2. In the above state, insert the guide pins 4, 4' into the reamed holes 4 4 , 4 5 that are machined to pass through both. In that case, the threaded portion 42 prevents the guide pin from falling off.
なお、ステータ２には、磁気ドラム１の磁性
材面に磁気的に記録されている磁気目盛を検出
する再生ヘツド３が、磁気ドラムと僅かな隙間
（約50μm）をもつて設置されている。 A reproducing head 3 for detecting a magnetic scale magnetically recorded on the magnetic material surface of the magnetic drum 1 is installed on the stator 2 with a small gap (approximately 50 .mu.m) from the magnetic drum.
３ 次に、第３図ｃに示すように、一体化した磁
気ドラム１とステータ２を、その磁気ドラム１
の下面が回転軸Ｒの端面に接するように置き、
磁気ドラム１の取付穴１ａ［第３図ａ参照］を
通して回転軸Ｒのネジ穴にボルトｈを螺着し、
ステータと一体なる磁気ドラム１を回転軸に仮
止めする。3 Next, as shown in FIG. 3c, the integrated magnetic drum 1 and stator 2 are
Place it so that the bottom surface of the is in contact with the end surface of the rotation axis R,
Screw the bolt h into the screw hole of the rotating shaft R through the mounting hole 1a of the magnetic drum 1 (see Figure 3 a),
A magnetic drum 1 integrated with a stator is temporarily fixed to a rotating shaft.
ここで、回転軸Ｒを回転させ、磁気ドラム１
の円周面が偏心なく同心となるように機械的に
調整した後、前記ボルトｈを強固に本締めす
る。 Here, the rotating shaft R is rotated, and the magnetic drum 1 is rotated.
After mechanically adjusting the circumferential surfaces of the bolts so that they are concentric with no eccentricity, the bolts h are fully tightened.
なお、その場合、ステータ２の下面と、所望
機械の取付面ｓとの間には、隙間（0.8〜1.0
mm）を残しておく。 In that case, there is a gap (0.8 to 1.0
mm).
４ 次に磁気ドラム１とステータ２とを固定して
いるボルト１０を取り外す。このボルト１０の
取外しにより、ステータ２は、２個のガイドピ
ン４，４′の平行ピン部４1と各々のリーマ穴４
５をガイドにして軸方向に移動可能となる。4 Next, remove the bolts 10 fixing the magnetic drum 1 and stator 2. By removing this bolt 10, the stator 2 is separated from the parallel pin portions 41 of the two guide pins 4, 4' and the respective reamed holes 4.
5 as a guide and can be moved in the axial direction.
なお、前記２個のガイドピン４，４′により、
半径の２次元方向はガイドピンの平行ピン部と
リーマ穴との隙間以下に位置関係が規定されて
いる。 Note that the two guide pins 4, 4' allow
In the two-dimensional radial direction, the positional relationship is defined below the gap between the parallel pin portion of the guide pin and the reamer hole.
５ ステータ２を機械の取付面ｓの方向に押し下
げ、磁気ドラム１より離し、取付面と接した状
態で回転軸をゆつくり回転させ、ステータ側の
取付穴２ａ［第３図ａ参照］を取付面ｓ側のネ
ジ穴に合わせ、ネジ（図示してない）により固
定する。5 Push the stator 2 down in the direction of the machine's mounting surface s, separate it from the magnetic drum 1, slowly rotate the rotating shaft while it is in contact with the mounting surface, and install the mounting hole 2a on the stator side (see Figure 3 a). Align with the screw holes on side s and fix with screws (not shown).
６ 次に、磁気ドラム１とステータ２とのリーマ
穴間を貫通しているガイドピン４，４′を抜き
取る。6 Next, the guide pins 4 and 4' passing through the reamed holes of the magnetic drum 1 and stator 2 are removed.
なお、ステータ２は、ステータ下面と機械の
取付面ｓ間の隙間量だけ下るので、磁気ドラム
１とステータ２とは同一量離れ、非接触とな
る。 In addition, since the stator 2 is lowered by the amount of the gap between the lower surface of the stator and the mounting surface s of the machine, the magnetic drum 1 and the stator 2 are separated by the same amount and are not in contact with each other.
また、再生ヘツド３と磁気ドラム１との設定
隙間に対し、前記ガイドピンとリーマ穴とのガ
タ付き分が1/5〜1/10と少なく設定しており、
したがつて再生ヘツド３と磁気ドラム１の設定
隙間の変動分は20％〜10％と許容値以内におさ
まるので、回転角検出装置として、所定の性能
を発揮することができる。 Furthermore, the amount of backlash between the guide pin and the reamer hole is set to be as small as 1/5 to 1/10 of the set gap between the playback head 3 and the magnetic drum 1.
Therefore, the variation in the set gap between the reproducing head 3 and the magnetic drum 1 is within the permissible value of 20% to 10%, so that the rotation angle detecting device can exhibit the specified performance.
７ 上記のようにして再生ヘツド３と磁気ドラム
１との隙間を、ガイドピンおよびリーマ穴によ
り規制するが、これを取り外した後でも、再度
ガイドピンを磁気ドラムとステータのリーマ穴
に貫通させ、ステータと取付面ｓとの取付けネ
ジを取外し、ステータを押し上げて磁気ドラム
に当接させ、ネジ１０により両者を一体化する
ことで、機械に取付ける前の初期状態に戻して
再現することができる。7 As described above, the gap between the reproducing head 3 and the magnetic drum 1 is regulated by the guide pin and the reamer hole, but even after this is removed, the guide pin is passed through the reamer hole of the magnetic drum and the stator again, By removing the mounting screws between the stator and the mounting surface s, pushing the stator up to contact the magnetic drum, and integrating the two with the screws 10, it is possible to restore and reproduce the initial state before mounting on the machine.
上記回転角度検出装置の構成によれば、ステー
タに取付けられている再生ヘツドとロータ側磁気
ドラムの間に一定の隙間を設けておき、その隙間
量を維持しながら、再生ヘツドとロータを接触さ
せることなく、ロータとステータを軸方向に相対
変位させることができる。従つて最初に位置決め
された磁気ドラム１と再生ヘツド３の半径方向の
位置関係は、磁気ドラム１とステータ２とを相対
移動した後も再現できるから、取付け調整が極め
て簡単かつ容易になる。 According to the configuration of the rotation angle detection device, a certain gap is provided between the playback head attached to the stator and the magnetic drum on the rotor side, and the playback head and the rotor are brought into contact while maintaining this gap amount. The rotor and stator can be displaced relative to each other in the axial direction. Therefore, the initially positioned radial positional relationship between the magnetic drum 1 and the reproducing head 3 can be reproduced even after the magnetic drum 1 and the stator 2 are moved relative to each other, making installation adjustment extremely simple and easy.
なお、前記リーマ穴４4，４5とガイドピンの平
行ピン部４1のガタが大きい場合、磁気ドラム１
とステータとをガイドピン４に沿つて移動させる
と、半径方向にも変位が生じ、磁気ドラム１と再
生ヘツド３間のギヤツプが変化するので、リーマ
穴とガイドピンの平行ピン部間の隙間は移動可能
な必要最小限としなければならない。 In addition, if the play between the reamer holes 4 4 , 4 5 and the parallel pin portion 4 1 of the guide pin is large, the magnetic drum 1
When the stator and magnetic drum are moved along the guide pin 4, displacement also occurs in the radial direction, and the gap between the magnetic drum 1 and the reproducing head 3 changes, so the gap between the reamed hole and the parallel pin part of the guide pin is It must be movable to the minimum necessary.
また、再生ヘツドを複数個円周方向に等分に配
設した装置にも本発明を適用して、前記と同様な
作用効果が得られる。 Furthermore, the same effects as described above can be obtained by applying the present invention to an apparatus in which a plurality of reproducing heads are equally distributed in the circumferential direction.
更に、前記ガイドピン４は２個に限定されるも
のではなく、また、ガイドピンには前述したよう
に２面フラツトの頭部４3が設けられていて、ス
パナ又はモンキーレンチにより回転する手段がと
られているが、第４図ａ，ｂに示すように、前記
頭部に穴をあけ、その穴に適当な棒４ａを通して
手動にて回動するようにしてもよい。この場合、
ガイドピンにはその抜き差しを容易にするために
前述の如くネジ部が設けられていて、磁気ドラム
にも対応するメネジ部が設けられるが、例えば第
５図ａ，ｂに示すように抜き差し治具１２を用意
して、ガイドピン頭部のスリ割り部４6によりガ
イドピンを回転させ前記治具１２によつて抜き差
しする手段でも前記と同様な作用効果が得られ
る。 Further, the number of guide pins 4 is not limited to two, and the guide pin is provided with a flat head 43 on two sides, as described above, and can be rotated by a spanner or an adjustable wrench. However, as shown in FIGS. 4a and 4b, a hole may be made in the head and a suitable rod 4a may be passed through the hole to allow manual rotation. in this case,
The guide pin is provided with a threaded portion as described above to facilitate its insertion and removal, and the magnetic drum is also provided with a corresponding female threaded portion. 12 is prepared, the guide pin is rotated by the slotted portion 46 of the guide pin head, and the jig 12 is used to insert and remove the guide pin, and the same effect as described above can be obtained.
第６図ａ，ｂは、本発明をインダクトシンに適
用した実施例であつて、１３及び１４はインダク
トシンを構成するロータ磁気ドラム及びステータ
であり、ボルト１５により固定されるが、その
際、前述した実施例と同様に位置決め用ガイドピ
ン１６，１６′が使用される。但し、この固定時
にロータ側磁気ドラム及びステータのパターン部
を損傷しないようにするため、ステータのボルト
孔の口部に出張り１７等を設ける必要がある。 Figures 6a and 6b show an embodiment in which the present invention is applied to an inductosyn, and 13 and 14 are a rotor magnetic drum and a stator that constitute the inductosyn, and are fixed with bolts 15. At this time, positioning guide pins 16, 16' are used as in the previous embodiment. However, in order to prevent damage to the rotor-side magnetic drum and the pattern portion of the stator during this fixing, it is necessary to provide a protrusion 17 or the like at the mouth of the bolt hole of the stator.
以上に説明した所から明らかなように、本発明
によれば、ガイドピンの採用により、最初に位置
決めしたロータ側磁気ドラムとステータとの相対
位置関係が再現可能となり、回転角度検出装置を
所望の機械に取付ける際、また取外し後の再取付
けの際に、再生ヘツド等の位置決め作業を省くこ
とができる。また位置決めに必要なガイドピンは
回転角度検出装置を所望機械に取付けた後に抜き
去るので、厚さ方向の寸法は従来の分離型の装置
とほぼ同等の大きさとなり、取付けの簡易化と装
置の薄型化とが達成される。 As is clear from the above explanation, according to the present invention, by employing the guide pin, it is possible to reproduce the relative positional relationship between the initially positioned rotor-side magnetic drum and the stator, and the rotation angle detection device can be adjusted to the desired position. It is possible to omit the work of positioning the playback head etc. when installing it on the machine or when reinstalling it after removal. In addition, the guide pins necessary for positioning are removed after the rotation angle detection device is installed on the desired machine, so the dimension in the thickness direction is approximately the same size as a conventional separate type device, which simplifies installation and makes the device easier to use. Thinness is achieved.
第１図及び第２図はそれぞれ従来の回転角度検
出装置の概略構成を示す側面図、第３図ａは本発
明の一実施例を示す回転角度検出装置の平面図、
第３図ｂ及び第３図ｃは縦断面図、第４図ａは他
の構造によるガイドピンの平面図、第４図ｂは側
面図、第５図ａは他の実施例を示すガイドピン取
付け部分の平面図、第５図ｂはその縦断面図、第
６図ａは他の実施例を示す装置の平面図、第６図
ｂはそのＡ―Ｏ―A′線の断面図である。
１……ロータ側磁気ドラム、２……ステータ、
３……再生ヘツド、４……ガイドピン、１０……
ボルト。
1 and 2 are side views showing a schematic configuration of a conventional rotation angle detection device, respectively, and FIG. 3a is a plan view of a rotation angle detection device showing an embodiment of the present invention.
3b and 3c are longitudinal sectional views, FIG. 4a is a plan view of a guide pin with another structure, FIG. 4b is a side view, and FIG. 5a is a guide pin showing another embodiment. FIG. 5b is a plan view of the attachment part, FIG. 5b is a longitudinal sectional view thereof, FIG. 6a is a plan view of the device showing another embodiment, and FIG. 6b is a sectional view taken along line A-O-A'. . 1... Rotor side magnetic drum, 2... Stator,
3... Playback head, 4... Guide pin, 10...
bolt.
Claims (1)
ータを回転軸に固定するための第１の固定手段
と、上記ロータの角度目盛を検出する検出器と、
該検出器が固定されるステータと、上記ステータ
を機械部分に固定するための第２の固定手段とを
有する上記ロータとステータとの相対回転角度を
検出する回転角度検出装置において、上記ロータ
とステータとを貫通するように形成されたガイド
ピン挿入用の少なくとも２個の穴を備え、これら
の穴に挿入されたガイドピンにより上記ロータと
ステータとの相対位置関係を規定した状態で上記
ロータに対する上記検出器の位置決めを行つて該
検出器を上記ステータに固定することにより、上
記ロータとステータとを一体的に保持した状態で
上記ロータの回転軸に対する芯出しを行つて上記
第１の固定手段により上記ロータを回転軸に固定
し、かつ上記ガイドピンにより上記ロータとステ
ータとの半径方向の相対位置関係を保持した状態
で軸方向に上記ステータをロータより離して上記
第２の固定手段により上記ステータを機械部分に
固定できるようにしたことを特徴とする回転角度
検出装置。1. A rotor on which an angular scale is recorded, a first fixing means for fixing the rotor to a rotating shaft, and a detector for detecting the angular scale of the rotor.
A rotation angle detection device for detecting a relative rotation angle between the rotor and the stator, which includes a stator to which the detector is fixed, and a second fixing means for fixing the stator to a mechanical part. at least two holes for inserting a guide pin formed so as to pass through the rotor, and the guide pin inserted into these holes defines the relative positional relationship between the rotor and the stator. By positioning the detector and fixing the detector to the stator, the rotor is centered with respect to the rotating shaft while the rotor and stator are held integrally, and the first fixing means The rotor is fixed to the rotating shaft, and the stator is separated from the rotor in the axial direction while the relative positional relationship in the radial direction between the rotor and the stator is maintained by the guide pin, and the stator is fixed by the second fixing means. A rotation angle detection device characterized in that it can be fixed to a mechanical part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20283481A JPS58103612A (en) | 1981-12-15 | 1981-12-15 | Detector for rotating angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20283481A JPS58103612A (en) | 1981-12-15 | 1981-12-15 | Detector for rotating angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58103612A JPS58103612A (en) | 1983-06-20 |
| JPH0254483B2 true JPH0254483B2 (en) | 1990-11-21 |
Family
ID=16463958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20283481A Granted JPS58103612A (en) | 1981-12-15 | 1981-12-15 | Detector for rotating angle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58103612A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1116276B (en) * | 1977-12-30 | 1986-02-10 | Olivetti & Co Spa | ANGULAR POSITION TRANSDUCER FOR A ROTATING ORGAN |
| JPS6035897Y2 (en) * | 1979-07-05 | 1985-10-24 | カルソニックカンセイ株式会社 | rotation detection device |
| IT1165711B (en) * | 1979-09-27 | 1987-04-22 | Olivetti & Co Spa | OPTICAL TRANSDUCER TO DETECT THE ANGULAR POSITION OF A ROTATING ORGAN COMPARED TO A FIXED STRUCTURE |
-
1981
- 1981-12-15 JP JP20283481A patent/JPS58103612A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58103612A (en) | 1983-06-20 |
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