JPS59222060A - Electric machine - Google Patents
Electric machineInfo
- Publication number
- JPS59222060A JPS59222060A JP59097692A JP9769284A JPS59222060A JP S59222060 A JPS59222060 A JP S59222060A JP 59097692 A JP59097692 A JP 59097692A JP 9769284 A JP9769284 A JP 9769284A JP S59222060 A JPS59222060 A JP S59222060A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- magnetic
- layer
- electric machine
- marker
- 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.)
- Pending
Links
- 239000003550 marker Substances 0.000 claims description 10
- 230000004907 flux Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000005415 magnetization Effects 0.000 claims description 6
- 239000004922 lacquer Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/20—Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Rotational Drive Of Disk (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はハウジング、回転子および固定子を有しており
、かつ前記回転子と共に回転するマーカおよび該マーカ
と共働し、前記固定子に対し゛Ｃ固定される検出器を具
えている電気機械に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention includes a housing, a rotor, and a stator, and a marker that rotates with the rotor and a detection device that cooperates with the marker and is fixed to the stator. It relates to electrical machines equipped with equipment.
斯種の電気機械はドイツ国公開公報第３０８１９４６号
から既知である。従来の電気機械は、例えばテープレコ
ーダのテープ駆動機槽に用いられるような、直流電動機
として構成している。斯様なテープ１駆動に当っては、
オーディオテープを一定速度で動かす必要がある。これ
がため、従来の電気機械における回転子には検出器によ
って光学−電子的に走査される光学的なマーカ（目じる
し）を設けている。この光学マーカは明暗が交互する面
、または隣接する反射面で構成することができる。An electric machine of this kind is known from DE 30 81 946 A1. Conventional electric machines are designed as direct current motors, such as those used, for example, in tape drive units of tape recorders. When driving such tape 1,
The audio tape must be moved at a constant speed. For this reason, rotors in conventional electrical machines are provided with optical markers that are scanned opto-electronically by detectors. The optical marker can be comprised of alternating light and dark surfaces or adjacent reflective surfaces.
光学マーカは回転子に極めて正確に設ける必要がある。Optical markers must be placed on the rotor with great precision.
また、斯様な７５−力を形成するための上述した面の寸
法および位置決めには極め士高度な要件が課せられる。Also, the dimensions and positioning of the above-mentioned surfaces for creating such 75-forces imposes extremely high requirements.
このために、従来構成のものは製造コストが極めＣ高く
なると云う欠点がある。。For this reason, the conventional configuration has the disadvantage that the manufacturing cost is extremely high. .
本発明の目的は構成が簡単で、しかも廉価に製造し得る
ように冒頭にて述べた種類の電気機械を改善することに
ある。The object of the invention is to improve an electric machine of the type mentioned at the outset in such a way that it is simple in construction and inexpensive to manufacture.
本発明はハウジング、回転子および固定子を有しており
、かつ前記回転子と共に回転するマーカおよび該マーカ
と共働し、前記固定子に対し°〔固定される検出器を具
えている電気機械において、回転子に環状の非磁性回転
子部分を設け、該非磁性回転子部分にマーカを磁化層と
して設け、該磁化層に成る磁束パターンを含ませて、磁
化層と共働する検出器が前記磁束パターンを検出するよ
うに構成したことを特徴とする。The invention relates to an electric machine having a housing, a rotor and a stator, and comprising a marker rotating with the rotor and a detector cooperating with the marker and fixed to the stator. wherein the rotor is provided with an annular non-magnetic rotor portion, the non-magnetic rotor portion is provided with a marker as a magnetized layer, the magnetic layer includes a magnetic flux pattern, and the detector cooperating with the magnetized layer is configured as described above. It is characterized by being configured to detect a magnetic flux pattern.
好ましくは環状とする磁化層を設ける非磁性回転子部分
は、例えばポリアセテートまたはポリアミドのような合
成樹脂とするのが好適である。The non-magnetic rotor part provided with the preferably annular magnetized layer is preferably made of a synthetic resin, such as polyacetate or polyamide.
磁化層が発生する磁束パターンは、回転子の回転数およ
び回転速度に関する情報を提供するのに用いることがで
きる。磁束パターンは種々の形態のものとすることがで
き、例えば検出器にて正弦波、矩形波またはのこぎり波
状の信号が発生するようなパターンとすることができる
。回転子が回転している際に検出器にて発生される信号
は、例えばサーボ系のような電子制御系に伝送して、こ
れにより回転子速度の偏差を補正することができる。The magnetic flux pattern generated by the magnetized layer can be used to provide information regarding the rotational speed and rotational speed of the rotor. The magnetic flux pattern can be of various forms, such as a pattern that produces a sinusoidal, square or sawtooth signal at the detector. The signals generated by the detector when the rotor is rotating can be transmitted to an electronic control system, such as a servo system, thereby correcting deviations in the rotor speed.
磁イ墾層は為す例えば回転子の回転方向を制定したり、
また回転子の静止状態を示すために、磁気的に符号化さ
れる情報を記憶させるために用いることもできる。The magnetic layer serves, for example, to establish the rotation direction of the rotor,
It can also be used to store magnetically encoded information to indicate the stationary state of the rotor.
なお、磁化層は電気機械の製造時に磁化するのが好適で
ある。斯かる磁化処置は回転子のそばに磁気記録ヘッド
を設けて、回転子を回転させて行なうことができる。こ
の場合には、回転子を正しい速度で回転させ、例えば正
弦波状の交流電流のような信号電流を磁気ヘッドに流し
、磁化層が磁気ヘッドの個所を通過する間に、上記信号
電流により磁気ヘッドが発生する磁束パターンに対応す
るパターンに上記磁化層を磁化せしめるようにする。Note that the magnetization layer is preferably magnetized during manufacture of the electric machine. Such magnetization treatment can be performed by providing a magnetic recording head near the rotor and rotating the rotor. In this case, the rotor is rotated at the correct speed, a signal current such as a sinusoidal alternating current is passed through the magnetic head, and while the magnetized layer passes through the magnetic head, the signal current causes the magnetic head to The magnetic layer is magnetized in a pattern corresponding to the magnetic flux pattern generated by the magnetization layer.
検出器とし°Ｃは、例えばテープレコーダまたは力走ッ
トレコーダのような再生装置に用いラレル慣例の磁気ヘ
ッドを用いることができる。斯様な磁気ヘッドは原則的
には、完全には閉成されておらず、しかもまわりにコイ
ルを巻回する軟磁性材料製の環状コアをもって構成する
。コア端部は磁極片として構成し、これにより狭いギャ
ップを画成する。用途によつＣは、検出器をホール素子
で形成することができる。検出器は電気機械のハウジン
グに接続するのが好適である。As a detector, a conventional magnetic head used in a playback device such as a tape recorder or a power-travel recorder can be used. Such magnetic heads basically consist of an annular core made of soft magnetic material that is not completely closed and around which a coil is wound. The core ends are configured as pole pieces, thereby defining a narrow gap. Depending on the application, the detector C may be formed of a Hall element. Preferably, the detector is connected to the housing of the electrical machine.
電気機械は発電機または例えば直流電動機のような電動
機として構成することができる。斯種の電動機は特に、
ビデオ兼オーディオ記録兼再生用装置用に好適である。The electric machine can be configured as a generator or a motor, such as a direct current motor. This kind of electric motor is especially
Suitable for video and audio recording and playback devices.
なお、斯様な用途にとって電動機に課せられる最も重要
な必要条件の１つは回転子の回転速度を極めＣ一定とす
る必要があることである。本発明による電気機械を用い
れば、回転子の回転数を簡単で、しかも廉価な方法で測
定することができる。Note that one of the most important requirements imposed on the electric motor for such applications is that the rotational speed of the rotor must be extremely constant at C. With the electric machine according to the invention, the rotational speed of the rotor can be measured in a simple and inexpensive manner.
本発明の好適例によれば、磁化層の材料を磁性ラッカー
とする。According to a preferred embodiment of the invention, the material of the magnetized layer is a magnetic lacquer.
磁性ラッカーは、内部に磁性顔料を分散剤を用いてこま
かに分割しである結合剤で構成する。この結合剤は例え
ば、ポリ塩化ビニル、ポリ酢酸ビニルまたはポリエステ
ルのような高分子物質とする。分散剤は例えば、レシチ
ンおよびリン酸とアルコールとのモノまたはジエステル
とするのが好適である。Magnetic lacquers consist of a binder in which magnetic pigments are finely divided using a dispersant. The binder is, for example, a polymeric material such as polyvinyl chloride, polyvinyl acetate or polyester. Suitable dispersants are, for example, lecithin and mono- or diesters of phosphoric acid and alcohols.
なお、上記磁性顔料とは磁化することのできる粒子を含
むものとする。磁化粒子としては、特にｃｒｏ粒子、Ｆ
ｅ粒子およびｒ −Ｆｅ、０８粒子が好適である。Note that the above-mentioned magnetic pigment includes particles that can be magnetized. As magnetized particles, especially cro particles, F
e particles and r-Fe, 08 particles are preferred.
磁性層には例えば、すすの如き帯電防止剤および脂肪酸
や、パラフィンや、黒鉛の如き滑拐のような補助物質を
入れることができる。The magnetic layer can contain, for example, antistatic agents such as soot and auxiliary substances such as fatty acids, paraffin, and gliding agents such as graphite.
斯様な磁性ラッカーを使用することにより、電気機械の
製造メカニズムを促進させることができる。磁化層は、
その層の材料を有機溶剤と一緒に回転子に被着して製造
することができ、その後上記磁化層を乾燥させた後に斯
かる磁化層には所望情報を記録させることができる。By using such magnetic lacquers it is possible to accelerate the manufacturing mechanism of electrical machines. The magnetization layer is
The material of the layer can be produced by applying it to the rotor together with an organic solvent, and the desired information can then be recorded in the magnetic layer after it has been dried.
本発明の他の好適例によれば、回転子をディスク状に構
成し、磁化層を該回転子の周囲面上に設けるようにする
。According to another preferred embodiment of the invention, the rotor is constructed in the form of a disc and the magnetized layer is provided on the circumferential surface of the rotor.
電気機械の寸法、特に軸線方向の寸法を小さくすること
が屡々所望される。これは例えば、電動機を再生装置に
使用するような場合である。斯様な電動機の回転子を、
ディスク状の支持体で構成し、この支持体に回転子コイ
ルを組込むようにすることは既知である。斯様なディス
ク状担体を設け、この担体の周囲面に前記磁化層を設け
るようにすれば、検出器を回転子の周囲面に対向させて
配置することができるため、電動機の軸線方向の寸法を
小さく保つことができる。It is often desirable to reduce the dimensions of electrical machines, especially the axial dimensions. This is the case, for example, when the electric motor is used in a regeneration device. The rotor of such a motor is
It is known to consist of a disc-shaped support in which the rotor coils are integrated. If such a disk-shaped carrier is provided and the magnetized layer is provided on the peripheral surface of this carrier, the detector can be placed facing the peripheral surface of the rotor, so that the axial dimension of the motor can be reduced. can be kept small.
磁化層を設ける表面は製造中に不規則にならないように
することが切望される。しかし、回転子ディスクの周囲
面は実際上、回転子ディスクの側面よりも簡単に平滑、
かつ均一にすることができることを確めた。It is desirable that the surface on which the magnetic layer is provided is free from irregularities during manufacture. However, the peripheral surface of the rotor disk is actually easier to smooth than the side surface of the rotor disk,
It was also confirmed that it could be made uniform.
図面につき本発明を説明する。The invention will be explained with reference to the drawings.
第１図に示す回転子ｌは本発明による可制？Ｓ電動機の
一部を成すものであり、この回転子１をハウジング８に
よって包囲する。ハウジング８内には環状永久磁石形態
の固定子５を設ける。回転子１はディスク状をしＣおり
、この回転子はその非磁性回転子部分に埋設される６個
のコイル７を具えている。本例では非磁性材料を、ポリ
カーボネートを混合したアクリルブタジェンスチレン（
コポリマー）とする各コイルのワイヤ端９は整流子１８
のセグメント１１に接続する。回転子１および整流子１
３は電動機軸１５に接続する。作動状態において、各フ
ィル７は順次セグメント１１に接触する２個のブラシ１
７および１９によって交互に附勢される。ブラシ１７お
よび１９は電流源（図示せず）に接続する。Is the rotor l shown in FIG. 1 controlled by the present invention? The rotor 1 is surrounded by a housing 8, which forms part of the S electric motor. A stator 5 in the form of an annular permanent magnet is provided within the housing 8 . The rotor 1 is disc-shaped and includes six coils 7 embedded in its non-magnetic rotor part. In this example, the non-magnetic material is acrylic butadiene styrene mixed with polycarbonate (
The wire end 9 of each coil is connected to a commutator 18
Connect to segment 11 of Rotor 1 and commutator 1
3 is connected to the motor shaft 15. In the operating state, each fill 7 has two brushes 1 contacting the segment 11 in turn.
7 and 19 alternately. Brushes 17 and 19 connect to a current source (not shown).
回転子１の周囲面２１には環状の磁化層２８を設ケる。A ring-shaped magnetized layer 28 is provided on the peripheral surface 21 of the rotor 1.
この磁化層２８は、ぎリピニルアセテートとＯｒｂ、粒
子とから成る磁性層で構成し、この層を回転子周囲面２
１のまわりに連続的な磁束パターンが現われるように磁
化する。ハウジング−８には回転子周囲面２１に対向す
る位置に磁気再生ヘッド２５（ｍ図的に図示しである）
を接続する。This magnetization layer 28 is composed of a magnetic layer made of pyripinyl acetate, orb, and particles, and this layer is attached to the rotor peripheral surface.
magnetize so that a continuous magnetic flux pattern appears around 1. The housing 8 has a magnetic reproducing head 25 (shown in the figure) located opposite the rotor peripheral surface 21.
Connect.
このヘッド２５は検出器として作用するものであり、こ
れは第２図にブロック線図にて示すように、電子制御系
２７に電気的に接続する。The head 25 acts as a detector and is electrically connected to an electronic control system 27, as shown in block diagram form in FIG.
電動機の速度制御を第２図につき説明する。電動機を電
流源２９に接続すると、コイル７に電流が流れて回転子
１が回転し始める。磁性ラッカーで形成する磁化層２３
が発生する磁束パターンによって磁気ヘッド２５には信
号が連続的に誘起される。制御系２７は斯かる信号に応
答して、コイル７への給電を制御し、回転子ｌを予じめ
調整した均一の速度で回転させるようにする。Speed control of the electric motor will be explained with reference to FIG. When the electric motor is connected to the current source 29, current flows through the coil 7 and the rotor 1 begins to rotate. Magnetized layer 23 made of magnetic lacquer
A signal is continuously induced in the magnetic head 25 by the generated magnetic flux pattern. Control system 27 responds to such a signal by controlling the power supply to coil 7 so as to rotate rotor 1 at a pre-adjusted uniform speed.
【図面の簡単な説明】
第１図は本発明による電気機械の１つである電動機の一
例を部分的に分解して示す斜視図；第２図は第１図に示
す例に対する速度制御装置の一例を示すブロック線図で
ある。
１・・・回転子 ３・・・ハウジング５・
・・固定子 ７・・・コイル９・・・コイ
ルのワイヤ端１１・・セグメント１８・・・整流子
１５・・・電動機軸１７．１９・・・ブラシ
２１・・・回転子周囲面２３・・・磁化層（
マーカ）
２５・・・磁気再生ヘッド（検出器）
２７・・・電子制御系 ２９・・・電流源。
特許出願人 エヌ・ベー・フィリップス・フルーイラ
ンペン７アブリケン[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a partially exploded perspective view of an example of an electric motor, which is one of the electric machines according to the present invention; Fig. 2 shows a speed control device for the example shown in Fig. 1; FIG. 2 is a block diagram illustrating an example. 1...Rotor 3...Housing 5.
... Stator 7 ... Coil 9 ... Wire end of coil 11 ... Segment 18 ... Commutator
15... Motor shaft 17. 19... Brush 21... Rotor surrounding surface 23... Magnetized layer (
Marker) 25...Magnetic reproducing head (detector) 27...Electronic control system 29...Current source. Patent applicant: NV Philips Fluiran Pen 7 Abriken
Claims (1)
つ前記回転子と共に回転するマーカおよび該マーカと共
働し、前記固定子に対して固定される検出器を具え°Ｃ
いる電気機械において、回転子に環状の非磁性回転子部
分を設け、該非磁性回転子部分にマーカを磁化層とし゛
〔設け、該磁化層に成る磁束パターンを含ませて、磁化
層と共働する検出器が前記磁束パターンを検出するよう
に構成したことを特徴とする電気機械。 λ 磁化層の材料を磁性ラッカーとしたことを特徴とす
る特許請求の範囲１記載の電気機械。 ＆ 回転子をディスク状に構成し、磁化層を該回転子の
周囲面上に設けたことを特徴とする特許請求の範囲１ま
たは２のいずれかに記載の電気機械。[Scope of Claims] 1. A housing, a rotor, and a stator, and includes a marker that rotates together with the rotor and a detector that cooperates with the marker and is fixed to the stator. C
In an electric machine, a rotor is provided with an annular non-magnetic rotor part, a marker is provided as a magnetized layer in the non-magnetic rotor part, and a magnetic flux pattern consisting of the magnetized layer is contained and cooperates with the magnetized layer. An electric machine, wherein a detector is configured to detect the magnetic flux pattern. The electric machine according to claim 1, characterized in that the material of the λ magnetization layer is a magnetic lacquer. & The electric machine according to claim 1 or 2, characterized in that the rotor is configured in the shape of a disk, and a magnetized layer is provided on the peripheral surface of the rotor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8301796 | 1983-05-20 | ||
| NL8301796A NL8301796A (en) | 1983-05-20 | 1983-05-20 | ADJUSTABLE ELECTRIC MACHINE. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59222060A true JPS59222060A (en) | 1984-12-13 |
Family
ID=19841888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59097692A Pending JPS59222060A (en) | 1983-05-20 | 1984-05-17 | Electric machine |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS59222060A (en) |
| DE (1) | DE3418153A1 (en) |
| FR (1) | FR2546345A1 (en) |
| GB (1) | GB2140219A (en) |
| NL (1) | NL8301796A (en) |
| SE (1) | SE8402659L (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX161230A (en) | 1985-12-23 | 1990-08-24 | Unique Mobility Inc | IMPROVEMENTS IN LIGHTWEIGHT ELECTROMAGNETIC TRANSDUCER |
| US5319844A (en) | 1985-12-23 | 1994-06-14 | Unique Mobility, Inc. | Method of making an electromagnetic transducer |
| DE3821324C2 (en) * | 1988-06-24 | 1994-03-10 | Heidelberger Druckmasch Ag | Sheet grippers on sheet-fed rotary printing machines |
| DE3900464A1 (en) * | 1989-01-10 | 1990-07-12 | Heidelberger Druckmasch Ag | DEVICE FOR DETECTING THE ROTOR POSITION AND SPEED OF AN ELECTRIC MOTOR |
| DE102013203937A1 (en) * | 2013-03-07 | 2014-09-11 | Siemens Aktiengesellschaft | Electric machine without resolver |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5714679B2 (en) * | 1976-06-07 | 1982-03-25 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7503046A (en) * | 1975-03-14 | 1976-09-16 | Philips Nv | ELECTRIC MACHINE. |
| US4086519A (en) * | 1977-02-25 | 1978-04-25 | Electro-Craft Corporation | Hall effect shaft angle position encoder |
| GB1592833A (en) * | 1977-03-22 | 1981-07-08 | Braun Ag | Rotary drive the rotational speed of which can be regulated |
| JPS5860215A (en) * | 1981-10-06 | 1983-04-09 | Hitachi Ltd | Encoder with position detection |
-
1983
- 1983-05-20 NL NL8301796A patent/NL8301796A/en not_active Application Discontinuation
-
1984
- 1984-05-16 GB GB08412474A patent/GB2140219A/en not_active Withdrawn
- 1984-05-16 DE DE19843418153 patent/DE3418153A1/en not_active Ceased
- 1984-05-17 SE SE8402659A patent/SE8402659L/en not_active Application Discontinuation
- 1984-05-17 JP JP59097692A patent/JPS59222060A/en active Pending
- 1984-05-18 FR FR8407770A patent/FR2546345A1/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5714679B2 (en) * | 1976-06-07 | 1982-03-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| SE8402659D0 (en) | 1984-05-17 |
| GB8412474D0 (en) | 1984-06-20 |
| SE8402659L (en) | 1984-11-21 |
| NL8301796A (en) | 1984-12-17 |
| GB2140219A (en) | 1984-11-21 |
| FR2546345A1 (en) | 1984-11-23 |
| DE3418153A1 (en) | 1984-11-22 |
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