JPS6020113A - Rotary signal generator - Google Patents
Rotary signal generatorInfo
- Publication number
- JPS6020113A JPS6020113A JP58127694A JP12769483A JPS6020113A JP S6020113 A JPS6020113 A JP S6020113A JP 58127694 A JP58127694 A JP 58127694A JP 12769483 A JP12769483 A JP 12769483A JP S6020113 A JPS6020113 A JP S6020113A
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- signal
- electrode
- capacitance
- electrostatic
- 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
- 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
- G01D5/24—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 capacitance
- G01D5/241—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 capacitance by relative movement of capacitor electrodes
- G01D5/2412—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 capacitance by relative movement of capacitor electrodes by varying overlap
- G01D5/2415—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 capacitance by relative movement of capacitor electrodes by varying overlap adapted for encoders
-
- 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
- G01D5/24—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 capacitance
- G01D5/2403—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 capacitance by moving plates, not forming part of the capacitor itself, e.g. shields
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は回転体の回転変位量や回転速度や回転方向等の
情報信号を発生する装置に関する０〔発明の背景Ｊ
第１図は従来の回転信号発生器の構造側図で、（ａ）は
縦断面図、（ｂ）は平面図である。本例は回転体から発
生する磁界信号を固定側に設けた磁界検出素子（ホール
素子が一般的）で検出しその電圧信号出力によって回転
体の回転方向を検出する構成である。回転体１０周平面
に固定した多極の円環状マグネット２゛の磁界信号をこ
れに近接対向させて設けた２個の磁界検出素子３ａ 。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a device for generating information signals such as the amount of rotational displacement, rotational speed, and direction of rotation of a rotating body. It is a structural side view of a signal generator, (a) is a longitudinal cross-sectional view, (b) is a top view. This example has a configuration in which a magnetic field signal generated from the rotating body is detected by a magnetic field detection element (generally a Hall element) provided on the stationary side, and the rotational direction of the rotating body is detected based on the voltage signal output thereof. Two magnetic field detection elements 3a are provided in close opposition to the magnetic field signals of a multi-pole annular magnet 2' fixed to the circumferential plane of the rotating body.
３ｂで検出する。磁界検出素子５ａ 、 ３ｂは互に電
気角でアの角度間隔をもって配列固定しである。Detected with 3b. The magnetic field detection elements 5a and 3b are arranged and fixed at an angular interval of A in electrical angles from each other.
回転体１の回転に伴ない磁界検出素子！＋ａ 、 ３ｂ
には互に三の位相差の電圧信号が発生する。回転方向に
より３ａ 、 ３ｂ相互の電圧信号出力の位相関係が逆
転する。すなわち本例の構成では回転体の正転の場合と
逆転の場合で磁界検出素子３ａの出力が同５ｂの出力に
対し二位相が進んだり遅れま
たりする。この位相の進み遅れ関係を検出して回転体１
０回転方向を検出する。本例は２個の磁界検出素子を用
いて回転体の正逆転方向の検出をする例であるが、この
他この信号を回転速度検出信号に兼用したりする方式例
もある。Magnetic field detection element as the rotating body 1 rotates! +a, 3b
Voltage signals with a phase difference of three are generated. Depending on the direction of rotation, the phase relationship between the voltage signal outputs of 3a and 3b is reversed. That is, in the configuration of this example, the output of the magnetic field detection element 3a leads or lags the output of the magnetic field detection element 5b by two phases, depending on whether the rotating body rotates in the normal direction or in the reverse direction. By detecting this phase lead/lag relationship, the rotating body 1
Detects 0 rotation direction. In this example, two magnetic field detection elements are used to detect the forward and reverse directions of the rotating body, but there is also an example of a method in which this signal is also used as the rotational speed detection signal.
上記従来技術の回転信号発生器では
（１）円環状マグネット２０着磁磁極寸法に下限値がち
り比較的小直径の回転体では高周波の回転信号を得難い
。In the above-mentioned prior art rotation signal generator, (1) there is a lower limit on the magnetized magnetic pole size of the annular magnet 20, making it difficult to obtain a high-frequency rotation signal with a rotating body having a relatively small diameter;
（２）磁界検出素子３ａ 、 ３ｂも小型・高感度・高
安定のものが得られない。(2) The magnetic field detection elements 3a and 3b cannot be made compact, highly sensitive, and highly stable.
（３）従って回転信号発生部の寸法が大型化しかつコス
ト高になる。(3) Therefore, the size of the rotation signal generating section becomes large and the cost becomes high.
等の欠点があった。There were other drawbacks.
本発明の目的は上記従来技術の欠点をなくし小型軽量、
高レート、高Ｓ／Ｎかつ低コストな複数位相の回転信号
発生器を提供するにある。The purpose of the present invention is to eliminate the drawbacks of the above-mentioned prior art, and to achieve a compact and lightweight design.
An object of the present invention is to provide a high rate, high S/N, and low cost multi-phase rotary signal generator.
上記目的を実現するために本発明の回転信号発生器では
、
（１）回転側構体及び固定側構体に互に平面対向する導
体電極を設は回転側構体の回転により両電極間の対向面
積を変化させ２相以上の静電容量変化を得る構成とし小
型軽量かつ低コスト構造でＳ／Ｎ比の高い高レートの回
転信号を得るようにしていることが特徴である。In order to achieve the above object, the rotational signal generator of the present invention has the following features: (1) Conductive electrodes are provided on the rotating side structure and the stationary side structure to face each other in plane, and the opposing area between the two electrodes is increased by rotation of the rotating side structure. It is characterized in that it has a structure in which capacitance changes of two or more phases are obtained by changing the capacitance, and a high-rate rotation signal with a high S/N ratio can be obtained with a small, lightweight, and low-cost structure.
〔発明の実施例Ｊ
以下、本発明を実施例に基づき説明する。本発明は導体
電極間に形成される静電容量変化を検出する回転信号発
生器である。[Example J of the Invention The present invention will be described below based on Examples. The present invention is a rotation signal generator that detects changes in capacitance formed between conductive electrodes.
第２図は本発明の回転信号発生器の第１実施例図で、（
ａ）は回転子側の静電電極基板平面図、（ｂ）は固定子
側の静電電極基板平面図である。本実施例は電気的に号
だけ位相の異なる２信号を発生する構成である。静電電
極は回転子側及び固定子側とも半径方向に放射状に設け
である。FIG. 2 is a diagram showing a first embodiment of the rotation signal generator of the present invention.
(a) is a plan view of the electrostatic electrode substrate on the rotor side, and (b) is a plan view of the electrostatic electrode substrate on the stator side. This embodiment has a configuration that generates two signals electrically different in phase by a signal. The electrostatic electrodes are provided radially in the radial direction on both the rotor side and the stator side.
外側半径部で２信号のうちの１つ（以下第１の信号と呼
ぶ）を得、内側半径部で残りの１信号（以下第２の信号
と呼ぶ）を得る。回転子側のパターン状静電電極２１
、２２は同一位相位置にありそれぞれ内側を円環パター
ン２４ 、２５で連続接続されている。固定子側のパタ
ーン状静電電極２６゜２７ 、２８ 、２９もそれぞれ
外側、内側で円環パターン５０ 、５１ 、５２ 、５
３に連続接続されている。電極２６．２７と電極２８
、２９とは円周方向に電気的に一五（機械的には舊−）
だけ位相がずれている。電極２６．２７と上記電極２１
とで形成される静電容量で第１の信号を発生させ、電極
２８ 、２９と電極２２とで形成される静電容量で第２
の信号を発生させる。One of the two signals (hereinafter referred to as the first signal) is obtained at the outer radius, and the remaining one signal (hereinafter referred to as the second signal) is obtained at the inner radius. Patterned electrostatic electrode 21 on the rotor side
, 22 are in the same phase position and are continuously connected on the inside with annular patterns 24 and 25, respectively. The patterned electrostatic electrodes 26° 27 , 28 , 29 on the stator side also have annular patterns 50 , 51 , 52 , 5 on the outside and inside, respectively.
3 are connected consecutively. Electrodes 26, 27 and 28
, 29 is electrically 15 (mechanically 舊 -) in the circumferential direction.
only the phase is shifted. Electrodes 26, 27 and the above electrode 21
A first signal is generated by the capacitance formed by the electrodes 28 and 29, and a second signal is generated by the capacitance formed by the electrodes 28 and 29 and the electrode 22.
generates a signal.
信号は固定子側電極２６ 、２７及び２８ 、２９から
端子側に取り出す。電極２６ 、２７の信号は端子５５
、５６から、また電極２８ 、２９の信号は基板裏面
に設けたパターン導線部を介して端子５７ 、５８から
取る。Signals are taken out from the stator side electrodes 26, 27 and 28, 29 to the terminal side. The signals of electrodes 26 and 27 are connected to terminal 55.
, 56, and signals from the electrodes 28, 29 are taken from terminals 57, 58 via patterned conductor portions provided on the back surface of the substrate.
回転子側の静電電極２１と固定子側の静電電極２６゜２
７とが平面的に最大に重なり合った場合に端子５５ 、
５６間の静電容量は最大になりこれより１８０゜（電気
角）ずれた位置では回転・固定両電極間の重なシ乎面は
最小になり静電容量値も最小になる。同様に回転子側の
静電電極２２と固定子側の静電電極２８ 、２９の間に
も対向面積変化が生ずるため端子５７ 、５８間の静電
容量値が変化する。Electrostatic electrode 21 on the rotor side and electrostatic electrode 26°2 on the stator side
7 overlap to the maximum in a plane, the terminal 55,
The capacitance between the electrodes 56 is at its maximum, and at a position deviated by 180 degrees (electrical angle) from this point, the overlapping plane between the rotating and fixed electrodes is at its minimum, and the capacitance value is also at its minimum. Similarly, since a change in the opposing area occurs between the rotor-side electrostatic electrode 22 and the stator-side electrostatic electrodes 28 and 29, the capacitance value between the terminals 57 and 58 changes.
第６図及び第４図は第２図の実施例の静電電極拡大図で
ある。本実施例の構造では円周方向の２に極を１対とし
て固定子側の端末Ａ−Ｂ間、Ｃ・１〕間に静電容量変化
信号を発生ずる。回転子側静電電極長さｌＩ（を固定子
側静電電極長さｌｓよりも長くすると重なり面積を広く
でき静電容量値を大きくできる。また固定子側静電電極
の円周方向の幅は電極ピッチの−１−以下にすると静寛
容量変化のＳ／Ｎを高くできる。6 and 4 are enlarged views of the electrostatic electrode of the embodiment shown in FIG. 2. In the structure of this embodiment, a pair of poles is provided at two positions in the circumferential direction, and a capacitance change signal is generated between terminals A and B and C and C1 on the stator side. If the rotor side electrostatic electrode length lI (is longer than the stator side electrostatic electrode length ls), the overlapping area can be widened and the capacitance value can be increased. Also, the circumferential width of the stator side electrostatic electrode By making the electrode pitch less than -1, the S/N of the static tolerance change can be increased.
第５図は上記第１実施例の回転信号発生器の電極におけ
る静電容量形成原理説明図である。FIG. 5 is a diagram illustrating the principle of forming capacitance in the electrodes of the rotational signal generator of the first embodiment.
固定子側電極端子Ａ、Ｂからみて固定子側電極面と回転
子側電極面との間の静電容量はギヤツブ部２箇所で形成
され直列接続されている。従ってこの１対の合成容量は
ギャップ１箇所の静電容量の約Ｉとなる。全周の電極数
をｎとすると２個づつ直列対のコンデンサがＬ個並列接
続にされていると等価なため全周の合計容量は電極１個
の容量の７倍になる。When viewed from the stator side electrode terminals A and B, the capacitance between the stator side electrode surface and the rotor side electrode surface is formed by two gear parts connected in series. Therefore, the combined capacitance of this pair is approximately I of the capacitance at one gap. If the number of electrodes on the entire circumference is n, it is equivalent to L capacitors connected in parallel, two in series, so the total capacitance on the entire circumference is seven times the capacitance of one electrode.
第６図は静電容量〜電圧変換回路構成側図、第７図及び
第８図は変換原理及び各部出方波形の説明図である。第
６図の検出回路３ｏは内部に検波器４０ 、４０’を含
む。回転・固定両電極間に形成され回転に伴ない変化す
る２個の静電容量Ｃ６１゜Ｃｏｔを端３１ ・３２ 、
３１′・３２’で検出回路３ｏに接続する。検出回路３
ｏ中には抵抗ＲとインダクタンスＬとを直列に接続して
あシ容量ＣＯ＋ 、 Ｃｏｔを接続することによｐＲ，
Ｌ、Ｃの直列共振回路を形成する。FIG. 6 is a side view of the capacitance to voltage conversion circuit configuration, and FIGS. 7 and 8 are explanatory diagrams of the conversion principle and output waveforms of each part. The detection circuit 3o in FIG. 6 includes detectors 40 and 40' therein. The two capacitances C61°Cot formed between the rotating and fixed electrodes and changing with rotation are connected to the ends 31 and 32,
It is connected to the detection circuit 3o at 31' and 32'. Detection circuit 3
By connecting a resistor R and an inductance L in series and connecting a capacitance CO+, Cot, pR,
A series resonant circuit of L and C is formed.
キャリア発振器４１は端子３５ 、３６で検出回路６０
に接続しである。キャリア発振器４１から出力されるキ
ャリア信号の角周波数をＷ。、振幅をＥ。とすると容量
Ｃｏｔ 、 ｃｏｔの両端端子３１−５２ 、３’ｌ’
・３２’間には次式の信号電圧Ｅ０が発生する。The carrier oscillator 41 connects to the detection circuit 60 at terminals 35 and 36.
It is connected to. The angular frequency of the carrier signal output from the carrier oscillator 41 is W. , the amplitude is E. Then, the capacitance Cot, both terminals 31-52, 3'l' of cot are
・A signal voltage E0 of the following formula is generated between 32'.
キャリア発振器４１０発生角周波数を上記直列共や低い
値に設定すれば第７図に示すごとく容量Ｃｏの変化量Δ
Ｃｏに応じて電圧ＥｃｏをΔＥｃｏだけ振動変調させる
ことができる。従ってこの共振回路の共振特性が急峻で
ある程振幅変調度を太きくでき増幅率を増大できる。得
られた変調信号電圧Ｅｃｏをダイオード５７、抵抗５８
及びコンデンサ３９から成る検波器４０にインプットし
て包絡線検波すれば出力端子５３・３４ 、３３”・３
４′に容量変化に対応した信号電圧Ｅｏｕｌ＋ 、 Ｅ
ｏｕｔｔを得ることができる静電容量変化ΔＣＯＩ 、
ΔＣｏ霞”２の位相差を持つ場合には上記出力Ｅｏｕｔ
＋ 、 Ｅｏｕｔｔも−の位相差信号となる。If the generation angular frequency of the carrier oscillator 410 is set to a low value in both series series, the amount of change Δ in the capacitance Co as shown in FIG.
According to Co, voltage Eco can be vibrationally modulated by ΔEco. Therefore, the steeper the resonance characteristic of this resonant circuit, the thicker the amplitude modulation degree and the higher the amplification factor. The obtained modulation signal voltage Eco is connected to a diode 57 and a resistor 58.
If the envelope is detected by inputting the signal to a detector 40 consisting of a capacitor 39 and a capacitor 39, output terminals 53, 34, 33", 3
4', the signal voltage Eoul+ corresponding to the capacitance change, E
Capacitance change ΔCOI that can obtain outt,
If there is a phase difference of ΔCo haze 2, the above output Eout
+ and Eoutt also become - phase difference signals.
第９図、第１０図は本発明の回転信号発生器を用いた正
転・逆転方向検出回路側図とその２相川力信号波形図で
ある。上記第６図〜第８図に述べたごとくアだけ位相の
異なる２個の静電容量変化信号を検出回路３０で二位相
の異なる電圧信号Ｅｏｕｂ 、 Ｅｏｕｈに変換しこれ
を増幅器７５ 、７５’で増幅した後、コンパレータ７
６ 、７６にインプットしここで２相のパルスＰ、 、
Ｐ、に変換する。さらニハルスＰｌ、Ｐｌヲフリツプ
・フロップ８０ニインプツトしここでＰ、 、 Ｐ、の
位相関係に対応した出力信号Ｐｏｕｔを作る。すなわち
パルスＰ、がＨｉｇｂ電位でパルスＰ！が立上がるとフ
リップ・フロップ８０の出力がＨｉｇｈ電位となシ（第
１０図（ａ））パルスＰ１がＬｏｗ電位でパルスＰ、が
立上がると７リツプ・フロップ８０の出力がＬｏｗ電位
と々る（同（ｂ））。FIGS. 9 and 10 are a side view of a forward/reverse rotation direction detection circuit using the rotation signal generator of the present invention and a waveform diagram of its two-phase river force signal. As described in FIGS. 6 to 8 above, the detection circuit 30 converts the two capacitance change signals having different phases by A to voltage signals Eoub and Eouh having two different phases. After amplification, comparator 7
6, 76, where two-phase pulses P, ,
Convert to P. Furthermore, Nihals Pl and Pl are input into a flip-flop 80 to generate an output signal Pout corresponding to the phase relationship of P, , P, and P. That is, the pulse P is at a Higb potential and the pulse P! When the pulse P1 rises, the output of the flip-flop 80 goes to a high potential (Fig. 10(a)). When the pulse P1 rises, the output of the flip-flop 80 goes to a low potential. (same (b)).
従って回転体の正転の場合のＰ、 、 Ｐ、の位相関係
を第１０図（ａ）、逆転の場合の位相関係を同（ｂ）と
すると７リツプ・フロップ８０の出力ＰｏｕｔのＨｉｇ
ｈ 。Therefore, if the phase relationship of P, , P, in the case of forward rotation of the rotating body is shown in FIG. 10 (a), and the phase relationship in the case of reverse rotation is shown in FIG.
h.
Ｌｏｗで正転・逆転の検出ができる。When set to Low, forward/reverse rotation can be detected.
上記実施例のごとき回転信号発生器では、（１）バクー
ン導体電極を用いた静電容量方式であるため卸１＠パタ
ーン電極を高精度に容易に実現できるため高周波の回転
信月を得ることができる（２）低コストにできる （３
）小型・薄型にできる（４）電磁気信号とリンクしない
ため高Ｓ／Ｎ信号が得られる （５）磁気方式における
磁極のような信号のポテンシャル源を必要としないため
回転体への組込作業が容易で取扱い易い、
等従来方式を大幅に改善する顕著な効果があるＯ
Ｍ￥ｉ１図及び第１２図は本発明の回転信号発生器の静
電′電極の他の構造側図、第１６図はさらに他の構造側
図である。これらの電極では固定子側の１＞極数を回転
子側の電極数の２倍にし回転子側電極１個に対し固定子
側電極２個で対応し回転チ側電極１個毎に固定子電極端
子間に静電容量変化出力を取り出す。全体の合計静電容
量値は前記第１実施例の場合と等しい。効果もほぼ同様
であるっ
上記実施例では２相信号発生の構成例について述べたが
、この他５相以上の回転信号発生の場合についても基本
構成・効果等はぼこれと同様でこれらも本発明の範囲内
である。In the rotational signal generator as in the above embodiment, (1) since it is a capacitance method using a Bakun conductor electrode, it is possible to easily realize a patterned electrode with high precision, and therefore it is possible to obtain a high-frequency rotational signal; Can be done (2) Can be done at low cost (3)
) It can be made small and thin (4) It does not link with electromagnetic signals, so a high S/N signal can be obtained. (5) It does not require a signal potential source like a magnetic pole in the magnetic method, so it can be easily integrated into a rotating body. Figure 1 and Figure 12 are side views of other structures of the electrostatic electrode of the rotating signal generator of the present invention, and Figure 16. is yet another side view of the structure. For these electrodes, the number of poles on the stator side is twice the number of electrodes on the rotor side, and one electrode on the rotor side corresponds to two electrodes on the stator side, so that one electrode on the stator side corresponds to one electrode on the rotor side. Take out the capacitance change output between the electrode terminals. The overall total capacitance value is the same as in the first embodiment. The effects are almost the same. In the above embodiment, an example of the configuration for generating a two-phase signal was described, but the basic configuration and effects, etc. for generating a rotation signal of 5 or more phases are also basically the same, and these also apply to the present invention. It is within the scope of the invention.
〔発明の効果Ｊ
本発明によれば回転信号発生器をして、（１）簡易かつ
）低コストな１１造で２相以上の回転情報が得られる。[Effects of the Invention J] According to the present invention, rotation information of two or more phases can be obtained using a rotation signal generator (1) with a simple and low-cost 11 structure.
（２）小型軽量で茜し− トθつ回転信号が得られる。(2) It is small and lightweight, and it is possible to obtain two rotation signals.
（３）電磁気信号等信の信号との相互干渉がないため信
号のＳ／Ｎを冒〈でき高精度の回転検出ができる。(3) Since there is no mutual interference with signals such as electromagnetic signals, the signal-to-noise ratio can be affected and rotation detection can be performed with high accuracy.
（４）回転体との結合・組込みが容易で取扱い易い。(4) Easy to connect and incorporate with a rotating body and easy to handle.
等の効果が得られる。Effects such as this can be obtained.
第１図は従来の回転信号発生器の構造例１？テ１、第２
図は本発明の回転信号発生器の第１実施例図、第６図及
び第４図は同実施例の電極拡大図、第５図は静電容量形
成原理説明図、第６図ｉｌ′ｉ静電容量〜亀圧変換回路
４７ケ成図、第７図及び第８図は変換原理及び各部出力
波形の説明図、第９図は正転・逆転検出回路図、第１０
図はその２相出力信号波形図、第１１図及び第１２図は
本発明の回転信号発生器の電極の他の構造図、第１３図
はさらに他の電極構造図である。
２１ 、２２・回転子側静電電極、
２６ 、２７ 、２８ 、２９ 固定子側静電電極。
代理人弁理士 高 橋 明 ｘｌ
特開昭Ｇ（１−２Ｕ１ｉ３＜’４＞
才１図
（α）
（ｂ）
矛２ｍ
第３図
、；ｔ４図
第５ｍ
（０−）
（し）
Ｃｒ Ｃ２
、？６図
０
ノ
第７ｍ
第８ｍ
（０，）
１９図
０
＼
オフ０図
（１）Figure 1 shows an example of the structure of a conventional rotational signal generator. Te 1, 2
The figure shows the first embodiment of the rotational signal generator of the present invention, FIGS. 6 and 4 are enlarged views of the electrodes of the same embodiment, FIG. 5 is an explanatory diagram of the principle of capacitance formation, and FIG. 47 diagrams of the capacitance to tortoise pressure conversion circuit, Figures 7 and 8 are explanatory diagrams of the conversion principle and output waveforms of each part, Figure 9 is a diagram of the forward/reverse rotation detection circuit, and Figure 10
The figure is a two-phase output signal waveform diagram, FIGS. 11 and 12 are other structural diagrams of the electrodes of the rotational signal generator of the present invention, and FIG. 13 is still another structural diagram of the electrodes. 21 , 22 - Rotor side electrostatic electrode, 26 , 27 , 28 , 29 Stator side electrostatic electrode. Representative Patent Attorney Akira Takahashi ?6 Figure 0 7th m 8th m (0,) 19 Figure 0 ＼ Off figure 0 (1)
Claims (1)
静電電極との間に回転構体の回転に伴ない変化する静電
容量を形成し、２相以上の回転信号を固定側電極端末よ
シ取り出す構造としたことを特徴とする回転信号発生器
。1 A capacitance that changes as the rotating structure rotates is formed between an electrostatic electrode provided on the rotating structure side and an electrostatic electrode provided on the fixed structure side, and rotation signals of two or more phases are transmitted to the fixed side electrode. A rotation signal generator characterized by having a structure in which the terminal can be taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58127694A JPS6020113A (en) | 1983-07-15 | 1983-07-15 | Rotary signal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58127694A JPS6020113A (en) | 1983-07-15 | 1983-07-15 | Rotary signal generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6020113A true JPS6020113A (en) | 1985-02-01 |
Family
ID=14966388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58127694A Pending JPS6020113A (en) | 1983-07-15 | 1983-07-15 | Rotary signal generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020113A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009053183A (en) * | 2007-07-31 | 2009-03-12 | Kyocera Corp | Device for detecting location variation of stage and transporting device equipped with the same |
| JP2009288058A (en) * | 2008-05-29 | 2009-12-10 | Kyocera Corp | Device for detecting position variation of stage and conveyor provided with it |
| JP2016031332A (en) * | 2014-07-30 | 2016-03-07 | 栃木県 | Capacitance type angle detecting device |
| JP2016053505A (en) * | 2014-09-03 | 2016-04-14 | オリエンタルモーター株式会社 | Electrostatic encoder |
| WO2019116716A1 (en) * | 2017-12-13 | 2019-06-20 | 株式会社村田製作所 | Rotary encoder |
-
1983
- 1983-07-15 JP JP58127694A patent/JPS6020113A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009053183A (en) * | 2007-07-31 | 2009-03-12 | Kyocera Corp | Device for detecting location variation of stage and transporting device equipped with the same |
| JP2009288058A (en) * | 2008-05-29 | 2009-12-10 | Kyocera Corp | Device for detecting position variation of stage and conveyor provided with it |
| JP2016031332A (en) * | 2014-07-30 | 2016-03-07 | 栃木県 | Capacitance type angle detecting device |
| JP2016053505A (en) * | 2014-09-03 | 2016-04-14 | オリエンタルモーター株式会社 | Electrostatic encoder |
| WO2019116716A1 (en) * | 2017-12-13 | 2019-06-20 | 株式会社村田製作所 | Rotary encoder |
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