JPS61500274A - Rotational speed transducer - Google Patents
Rotational speed transducerInfo
- Publication number
- JPS61500274A JPS61500274A JP50378183A JP50378183A JPS61500274A JP S61500274 A JPS61500274 A JP S61500274A JP 50378183 A JP50378183 A JP 50378183A JP 50378183 A JP50378183 A JP 50378183A JP S61500274 A JPS61500274 A JP S61500274A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- rotational speed
- transducer
- differential amplifier
- active conductor
- 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
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
- G01P3/487—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 rotating magnets
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- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Adjustable Resistors (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Mechanical Light Control Or Optical Switches (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】 発明の名称 回転速度トランスジューサ 技術分野 この発明は測定器具に関し、特に回転速度トランスジューサに関する。[Detailed description of the invention] name of invention rotational speed transducer Technical field TECHNICAL FIELD This invention relates to measuring instruments, and more particularly to rotational speed transducers.
背景となる技術 測定器具や測定用ピックアップに関連する基本的な要求は測定の正確さである。Background technology A fundamental requirement associated with measuring instruments and measuring pickups is measurement accuracy.
ピックアップ装置の設計、および測定法の方針は、その出方が歪を発生させるい かなる要因の影響も、雑音の影響も受けないように選ばれる・ 従来、回転速度トランスジューサは、放射状に、あるいは軸方向に交互に変わる 磁極と回転軸用の中央穴とを備えた円盤である永久磁石と、そして絶縁材料から 構成された基台上に取シ付けられた巻線とを備えている。ここでｎを整数、Ｐを 磁極の数とすると、アクティブ導体の数は（２ｎ＋１）ｐに等しい。The design of the pickup device and the policy of the measurement method are such that the way it comes out will cause distortion. Selected so as not to be affected by any factors or noise. Traditionally, rotational speed transducers alternate radially or axially from a permanent magnet, which is a disk with magnetic poles and a central hole for the axis of rotation, and an insulating material. and a winding mounted on a configured base. Here, n is an integer and P is Given the number of magnetic poles, the number of active conductors is equal to (2n+1)p.
これらのアクティブ導体は永久磁石の磁極の向い側に位置させられておシ、これ らは巻線の端部によって直列に接続されている（例えば１９７９年５月３１日の 英国特許出願屋２，０２２，３２６、クラスＨＯ２Ｋ １１１００ 、１６１０ ４ 、２１／ｌｏｏ ： ＧＯＩ Ｐ ３／４８、オヨび米国特許４４，０９３ ，８９７、クラスＨ０２Ｐ ５１０６、参照）。回転速度の決定におけるエラー の原因となるスプリアス←信号を除去するために、これらの従来技術における装 置では巻線は補償ターンに逆極性の直列に接続されている。これと同じ目的のた めに、トランスジューサの巻線はいくつかの部分に分割されており、それぞれは 電気的に１８００ずつシフトされていると共に直列に接続されている（例えばり 、Ｎ。These active conductors are placed opposite the magnetic poles of the permanent magnet, and this are connected in series by the ends of the windings (e.g. May 31, 1979). British Patent Applicant 2,022,326, Class HO2K 11100, 1610 4, 21/loo: GOI P 3/48, Oyobi US Patent 44,093 , 897, class H02P 5106, reference). Error in determining rotation speed In order to eliminate spurious ← signals that cause In this case, the windings are connected in series with opposite polarity to the compensation turns. For the same purpose For this purpose, the transducer winding is divided into several parts, each with a electrically shifted by 1800 and connected in series (for example, ,N.
サホノフ、Ｖ、Ｎ、ボルニアンスキーほか著の「精密なプリント巻線式角度・デ ータトランスノユーサ、機械製作叢書」、モスクワ、マンノストロエニエ出版社 、１９７７年刊行、第７〜１３頁および第５８〜６０頁参照）。Sakhonov, V.N., Borniansky et al., “Precise printed wire-wound angle design ``Transnoyusa, Machine-making Series'', Moscow, Mannostroye Publishing House , 1977, pp. 7-13 and 58-60).
永久磁石が回転すると、極性が交番する有効な信号の起電力が巻線のアクティブ 導体の中に誘導される。ところが、これと同時に外部の磁場あるいは電磁場によ りアクティブ導体や巻線の前端部に雑音の起電力が誘導される。これらの場はア クティブ導体の中では補償されるが、巻線の端部ではこれらは加えられる、とい うのはアクティブ導体は逆極性の直列に接続されているが、巻線の前端部はアク ティブ導体を介して直列に接続されているからである。As the permanent magnet rotates, the active signal emf of alternating polarity activates the winding. guided into the conductor. However, at the same time, external magnetic or electromagnetic fields Therefore, a noise electromotive force is induced in the active conductor and the front end of the winding. These places are They are compensated in the active conductor, but at the ends of the winding they are added. The active conductors are connected in series with opposite polarity, but the front end of the winding is This is because they are connected in series via the active conductor.
要約すると、従来技術における回転速度トランスジューサでは雑音信号は完全に は消滅しないが、これは巻線自体の固有の構造のために、巻線の補償ターンが巻 線端から所定距離だけ離れて位置しているからである。このことは外部の電磁場 が電力線用変圧器によって作られる電磁場のように対称性を備えていないときに 特に明らかである。このようなトランスジューサにおいては、巻線とその後段の 設備との間を接続する導線の中に誘導させられる雑音でさえも補償されない。In summary, in prior art rotational speed transducers, the noise signal is completely does not disappear, but this is due to the inherent structure of the winding itself, as the compensating turns of the winding This is because it is located a predetermined distance away from the end of the line. This means that the external electromagnetic field is not symmetrical, such as the electromagnetic field created by a power line transformer. Especially obvious. In such transducers, the winding and the Even noise induced in the conductors connecting to and from the equipment is not compensated for.
発明の開示 本発明では、外部雑音を完全に打ち消して回転速度をより正確に決定することが できる回転速度トランスジューサを提供することができる。Disclosure of invention With the present invention, it is possible to completely cancel out external noise and determine the rotation speed more accurately. A rotary speed transducer that can be provided can be provided.
本発明によれば、交互に変わる磁極をその円周に持ち、回転軸用の中央穴を有す る円盤である永久磁石と、基台上に配置された巻線で、そのアクティブ導体が前 記永久磁石の磁極に向い合って位置すると共に、巻線の前端部で直列に接続され ている巻線とを備えた回転速度トランスゾー−サであって、その上、そのアクテ ィブ導体および前記アクティブ導体を直列に接続する前端部が主巻線のアクティ ブ導体および前端部と同様に、非常に接近して、そして相互に３０〜３３０°の 電気角の変位をもって配設されている付加巻線と、その入力が主巻線と付加巻線 の成る端子に接続される差動増幅器で、前記主巻線と付加巻線の他の端子がこの 差動増幅器の共通電源ラインに接続されているような差動増幅器とを備えた回転 速度トランスジューサが提供される。According to the invention, it has alternating magnetic poles on its circumference and has a central hole for the axis of rotation. A permanent magnet, which is a circular disk, and a winding placed on a base, with its active conductor at the front. located opposite the magnetic poles of the permanent magnet and connected in series at the front end of the winding. 1. A rotary speed transoser comprising a winding having an actuator The front end that connects the active conductor and the active conductor in series is the active conductor of the main winding. as well as the conductor and the front end, very close together and at 30-330° to each other. The additional winding is arranged with an electrical angle displacement, and its input is connected to the main winding and the additional winding. A differential amplifier connected to a terminal consisting of the main winding and the other terminals of the additional winding The differential amplifier is connected to the common power supply line of the differential amplifier and the rotating A velocity transducer is provided.
前記回転速度トランスジューサにおける差動増幅器は電圧比較器であることが望 ましい。Preferably, the differential amplifier in the rotational speed transducer is a voltage comparator. Delicious.
本発明による回転速度トランスジューサは、電磁雑音を完全に打ち消すことによ って非常に正確に回転速度を決定することができる。The rotational speed transducer according to the present invention completely cancels electromagnetic noise. This allows the rotation speed to be determined very accurately.
図面の簡単な説明 さて、本発明は添付図面を参照して明確な実施例に基づいて説明されるが、ここ で、 第１図は本発明の回転速度トランスジューサの概略図を示し、 第２図は本発明に基づく第１図の■−■線に沿った断面を示す断面図を示し、 第３図は絶縁材料、基台の長大の中に位置させられる巻線から構成された本発明 のトランスジューサの基台部分の拡大図を示し、 第４図は電磁雑音の起動力の方向が示された第３図の模式図を示し、 第５図は本発明に係る巻線と電圧比較器との電気的結線図を示し、 第６図は本発明に係る電圧比較器の入力信号と出力信号の波形図を示している◎ 発明を実施するだめの好適な態様 回転速度トランスジューサは、放射状に磁化され、その円周に沿って交互に変わ るＮ極とＳ極とを有する円盤である永久磁石（第１図と第２図）を備えている。Brief description of the drawing The invention will now be described on the basis of specific embodiments with reference to the accompanying drawings, in which: in, FIG. 1 shows a schematic diagram of a rotational speed transducer of the present invention; FIG. 2 shows a sectional view taken along the line ■-■ of FIG. 1 based on the present invention, FIG. 3 shows the present invention consisting of an insulating material, a winding located within an elongated base. An enlarged view of the base of the transducer is shown. Figure 4 shows a schematic diagram of Figure 3 showing the direction of the motive force of electromagnetic noise, FIG. 5 shows an electrical connection diagram between the winding and the voltage comparator according to the present invention, Figure 6 shows a waveform diagram of the input signal and output signal of the voltage comparator according to the present invention◎ Preferred mode for carrying out the invention The rotational speed transducer is magnetized radially and alternately along its circumference. It is equipped with a permanent magnet (FIGS. 1 and 2), which is a disc having a north pole and a south pole.
この円盤は回転軸３に適合するだめの中央穴２を有している。前記トランスゾュ ーサはまた、この実施例では絶縁材料製の基台６の長穴５（第３図）の中に位置 させられた巻線４ａと４ｂとを備えている。この巻線４ａと４ｂとは、巻線端８ ａと８ｂに直列に接続されたアクティブ導体７ａと７ｂとから成っている。これ らの導体７ａと７ｂは同じ長穴の中で、前記永久磁石１（第２図）の磁極に対向 した状態でお互いに非常に接近して配設されている。巻線端８ａとｓｂ（第３図 ）はそれぞれ相互に非常に接近して位置させられている。巻線４ａと４ｂは３０ 〜３３０°の電気角の範囲内に存る角度で相互に変位している。これらの範囲は 許容される出力信号のレベルによって決まる。この実施例のトランスジューサで は、巻線４ａと４ｂ（第４図）は１８００の電気角で、あるいはＰを磁極の数と した時にπＡで表わされる電気角で変位している。この実施例の場合、前述の変 位が最適であると考えられる。This disc has a central hole 2 which accommodates the axis of rotation 3. Said transzo The sensor is also located in the elongated hole 5 (FIG. 3) of the base 6, which in this embodiment is made of an insulating material. It is provided with windings 4a and 4b which are twisted. These windings 4a and 4b are connected to the winding end 8. It consists of active conductors 7a and 7b connected in series with a and 8b. this The conductors 7a and 7b are located in the same elongated hole, facing the magnetic poles of the permanent magnet 1 (Fig. 2). They are placed very close to each other. Winding ends 8a and sb (Fig. 3 ) are each located very close to each other. Windings 4a and 4b are 30 They are mutually displaced by an angle lying within an electrical angle of ~330°. These ranges are Depends on the allowable output signal level. In this example transducer windings 4a and 4b (Fig. 4) have an electrical angle of 1800, or P is the number of magnetic poles. When it does, it is displaced by an electrical angle expressed by πA. For this example, the above changes This is considered to be the optimal position.
回転速度トランスジューサはまた、入力が巻線４ａと４ｂの同様の端子に接続す る差動増幅器９（第１図）を備えているが、この巻線４ａと４ｂの他の同様の端 子は前記差動増幅器９の共通線１０に接続されている。該同様の端子とは、この 状況では巻線の開始端あるいは終端のことである。The rotational speed transducer also has inputs connected to similar terminals of windings 4a and 4b. a differential amplifier 9 (FIG. 1) with a differential amplifier 9 (FIG. 1) which The child is connected to the common line 10 of the differential amplifier 9. This similar terminal is In some situations, it is the beginning or end of a winding.
電圧比較器１１（第５図）はトランスジューサの矩形の出力信号を得るための差 動増幅器として使用される。A voltage comparator 11 (FIG. 5) is used to calculate the difference in order to obtain a rectangular output signal of the transducer. Used as a dynamic amplifier.
回転速度トランスジューサの他の実施例では、回転軸方向に磁化された永久磁石 が使用される。この例では巻線のアクティブ導体は上述したトランスゾューサと 同様に配設されるが、その方向は回転半径方向である。Another example of a rotational speed transducer is a permanent magnet magnetized along the axis of rotation. is used. In this example, the active conductor of the winding is connected to the transducer described above. It is similarly arranged, but its direction is radial of rotation.
このトランスジューサの巻線を製作するに際しては、両面プリント基板を使用す ることができる。When fabricating the windings for this transducer, we recommend using a double-sided printed circuit board. can be done.
本発明に従って製作された回転速度トランスジューサの動作は以下の通りである 。The operation of a rotational speed transducer made according to the invention is as follows. .
永久磁石１（第１図および第２図）が回転すると、信号１２（第６図）が比較器 １１０反転入力に結合する巻線４ａ（第５図）の中に誘導される。この信号１２ ０周波数はトランスジューサの回転速度の関数である。巻線４ｂの中に誘導され る信号３は信号１２と同一の周波数および振幅を有しているが、その位相は信号 １２と比較すると異なっている。増幅された矩形信号１４は比較器１１の出力に おいて発生する。When the permanent magnet 1 (Figs. 1 and 2) rotates, the signal 12 (Fig. 6) is output to the comparator. 110 inverting input into winding 4a (FIG. 5). This signal 12 The zero frequency is a function of the transducer rotational speed. induced into the winding 4b Signal 3 has the same frequency and amplitude as signal 12, but its phase is different from that of signal 12. It is different compared to 12. The amplified rectangular signal 14 is sent to the output of the comparator 11. Occurs later.
トランスジューサが外部の電磁雑音場にさらされた場合は、雑音起電力ｅλがア クティブ導体７ａと７ｂ（第４図）の中、および巻線端８ａと８ｂの中に誘導さ れる。雑音起電力は逆極性で直列に接続されたアクティブ導体７ａと７ｂの中で は相殺されるが、一方、巻線端８ａと８ｂの中では加えられる。If the transducer is exposed to an external electromagnetic noise field, the noise emf eλ conductors 7a and 7b (FIG. 4) and winding ends 8a and 8b. It will be done. Noise electromotive force is generated between active conductors 7a and 7b connected in series with opposite polarity. are canceled out, whereas they are added in winding ends 8a and 8b.
その上、雑音起電力ｅλは回転する磁石によって発生する信号１２と１３（第６ 図）に重ね合わされてその場所で加えられ、そして起電力ｅ、として比較器１１ （第５図）の入力に供給される。雑音信号は比較器の入力に同位相で供給される ので、出力信号１４（第６図）には何の影響も与えない。Moreover, the noise electromotive force eλ is the signal 12 and 13 (sixth Fig.) is superimposed on the comparator 11 and applied there, and as an electromotive force e, (FIG. 5). The noise signal is fed in phase to the input of the comparator Therefore, it has no effect on the output signal 14 (FIG. 6).
要約すると、外部の電磁場の影響は、そのアクティブ導体が３０〜３３０°の電 気角の範囲内に在る角接近して配置された２つの全く同じ巻線と、この巻線が接 続される電圧比較器とを導入することにより、はとんど完全に相殺することがで きる。雑音をなくすことにより、回転速度の測定の正確さを向上させることがで きる。In summary, the effects of external electromagnetic fields are If two identical windings are placed close together within the range of air angles and this winding is in contact with can be almost completely canceled by introducing a connected voltage comparator. Wear. Eliminating noise can improve the accuracy of rotational speed measurements. Wear.
産業上の応用 本発明は主として、ビデオ装置、録音装置および再生装置に使用される電気モー タに、そのモータの回転速度を測定するためおよび補正するために応用すること ができる。industrial applications The present invention is primarily concerned with electric motors used in video equipment, recording equipment and playback equipment. for measuring and correcting the rotational speed of a motor. Can be done.
国際調査報告international search report
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/SU1983/000037 WO1985002020A1 (en) | 1983-10-31 | 1983-10-31 | Rotational velocity-type transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61500274A true JPS61500274A (en) | 1986-02-20 |
Family
ID=21616815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50378183A Pending JPS61500274A (en) | 1983-10-31 | 1983-10-31 | Rotational speed transducer |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS61500274A (en) |
| CH (1) | CH670517A5 (en) |
| DE (1) | DE3390546T1 (en) |
| FI (1) | FI71621C (en) |
| GB (1) | GB2159004B (en) |
| HU (1) | HU195008B (en) |
| SE (1) | SE446231B (en) |
| WO (1) | WO1985002020A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6225267A (en) * | 1985-07-26 | 1987-02-03 | Honda Motor Co Ltd | Magnetic signal generation ring |
| FR2670286B1 (en) * | 1990-12-05 | 1993-03-26 | Moving Magnet Tech | MAGNETIC POSITION AND SPEED SENSOR WITH HALL PROBE. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5271614A (en) * | 1975-12-12 | 1977-06-15 | Matsushita Electric Ind Co Ltd | Rotary electric machine |
| JPS5420775A (en) * | 1977-07-15 | 1979-02-16 | Pioneer Electronic Corp | Tachometer |
| JPS5635824U (en) * | 1979-08-29 | 1981-04-07 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1565537A (en) * | 1975-10-23 | 1980-04-23 | Hitachi Ltd | Electric motor |
| US4302692A (en) * | 1978-02-06 | 1981-11-24 | Matsushita Electric Industrial Co., Ltd. | Rotational speed signal sensor |
-
1983
- 1983-10-31 JP JP50378183A patent/JPS61500274A/en active Pending
- 1983-10-31 WO PCT/SU1983/000037 patent/WO1985002020A1/en active IP Right Grant
- 1983-10-31 GB GB08515896A patent/GB2159004B/en not_active Expired
- 1983-10-31 HU HU83121D patent/HU195008B/en not_active IP Right Cessation
- 1983-10-31 DE DE19833390546 patent/DE3390546T1/en not_active Ceased
-
1985
- 1985-06-17 FI FI852403A patent/FI71621C/en not_active IP Right Cessation
- 1985-06-24 SE SE8503135A patent/SE446231B/en not_active IP Right Cessation
- 1985-10-31 CH CH284185A patent/CH670517A5/de not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5271614A (en) * | 1975-12-12 | 1977-06-15 | Matsushita Electric Ind Co Ltd | Rotary electric machine |
| JPS5420775A (en) * | 1977-07-15 | 1979-02-16 | Pioneer Electronic Corp | Tachometer |
| JPS5635824U (en) * | 1979-08-29 | 1981-04-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| FI71621C (en) | 1987-01-19 |
| GB2159004A (en) | 1985-11-20 |
| SE446231B (en) | 1986-08-18 |
| HU195008B (en) | 1988-03-28 |
| CH670517A5 (en) | 1989-06-15 |
| FI852403A0 (en) | 1985-06-17 |
| FI71621B (en) | 1986-10-10 |
| SE8503135L (en) | 1985-06-24 |
| WO1985002020A1 (en) | 1985-05-09 |
| GB8515896D0 (en) | 1985-07-24 |
| GB2159004B (en) | 1987-08-05 |
| FI852403L (en) | 1985-06-17 |
| SE8503135D0 (en) | 1985-06-24 |
| DE3390546T1 (en) | 1985-11-14 |
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