JPS6344112U - - Google Patents
Info
- Publication number
- JPS6344112U JPS6344112U JP13643486U JP13643486U JPS6344112U JP S6344112 U JPS6344112 U JP S6344112U JP 13643486 U JP13643486 U JP 13643486U JP 13643486 U JP13643486 U JP 13643486U JP S6344112 U JPS6344112 U JP S6344112U
- Authority
- JP
- Japan
- Prior art keywords
- displacement detection
- inductance element
- detection device
- light emitting
- emitting element
- 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
- 230000003287 optical effect Effects 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 238000005286 illumination Methods 0.000 claims description 7
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Description
第１図は本考案に係る光学式変位検出装置の一
実施例を示す全体構成図、第２図は同じく要部拡
大図、第３図は同じく絶対変位量を演算するため
のフローチヤート、第４図は同じく波形説明図、
第５図は同じく照明系駆動回路の回路図、第６図
は同じく第５図に基づく照明系駆動回路の動作説
明図、第７図、第８図は同じく他の実施例を示す
概要図であつて第７図は反射型、第８図はロータ
リー型を示す。第９図は従来の光学式変位検出装
置の全体構成図および第１０図は従来の照明系駆
動回路の回路図である。
１０…メインスケール、１３…第１の光学格子
、１５…第２の光学格子、２０…インデツクスス
ケール、２３…第１の参照光学格子、２５…第２
の参照光学格子、３０…光電変換器、４０…平行
光照明系、５０…絶対変位検出回路、７０…照明
系駆動回路、７３…インダクタンス素子、７４…
第２のインダクタンス素子、７６…アンプ、７７
…パルス信号発生器、７８…電源回路。
Fig. 1 is an overall configuration diagram showing an embodiment of the optical displacement detection device according to the present invention, Fig. 2 is an enlarged view of the main parts, and Fig. 3 is a flowchart for calculating the absolute displacement amount. Figure 4 is also a waveform explanatory diagram,
FIG. 5 is a circuit diagram of the illumination system drive circuit, FIG. 6 is an explanatory diagram of the operation of the illumination system drive circuit based on FIG. 5, and FIGS. 7 and 8 are schematic diagrams showing other embodiments. FIG. 7 shows a reflective type, and FIG. 8 shows a rotary type. FIG. 9 is an overall configuration diagram of a conventional optical displacement detection device, and FIG. 10 is a circuit diagram of a conventional illumination system drive circuit. DESCRIPTION OF SYMBOLS 10... Main scale, 13... First optical grating, 15... Second optical grating, 20... Index scale, 23... First reference optical grating, 25... Second
reference optical grating, 30... photoelectric converter, 40... parallel light illumination system, 50... absolute displacement detection circuit, 70... illumination system drive circuit, 73... inductance element, 74...
Second inductance element, 76...Amplifier, 77
...Pulse signal generator, 78...Power supply circuit.
Claims (1)
対応する参照光学格子が設けられるとともにメイ
ンスケールと相対変位可能に対向配設されたイン
デツクススケールと両スケールを光照射させるた
めの照明系とメインスケールからの透過光または
反射光を受けて相応する電気信号に変換するため
の光電変換器とこの光電変換器からの電気信号を
所定処理して前記両スケールの相対移動変位量を
求める変位検出回路とを含み形成された光学式変
位検出装置において、 前記照明系の発光素子と直列配設されたインダ
クタンス素子と該発光素子とインダクタンス素子
とに所定時間の電圧を印加するための電源回路と
から形成された照明系駆動回路を設け前記照明系
を間歇点灯できるよう構成したことを特徴とする
光学式変位検出装置。 (2) 前記実用新案登録請求の範囲第１項におい
て、前記照明系駆動回路が、前記発光素子と並列
接続されるとともに前記インダクタンス素子と誘
導結合される第２のインダクタンス素子を含み形
成されている光学式変位検出装置。 (3) 前記実用新案登録請求の範囲第１項または
第２項において、前記電源回路が、前記変位検出
回路の指令に基づいて所定時間幅の駆動パルス信
号を発生するパルス信号発生器とこのパルス信号
発生器から出力された駆動パルス信号で前記発光
素子とインダクタンス素子とに電圧を印加すべく
作動するスイツチングトランジスタとから形成さ
れている光学式変位検出装置。[Scope of claims for utility model registration] (1) A main scale provided with an optical grating,
A corresponding reference optical grating is provided, as well as an index scale disposed facing the main scale so as to be relatively displaceable, an illumination system for irradiating both scales with light, and a corresponding one for receiving transmitted light or reflected light from the main scale. In an optical displacement detection device formed including a photoelectric converter for converting into an electric signal, and a displacement detection circuit that processes the electric signal from the photoelectric converter in a predetermined manner to determine the amount of relative displacement of both scales. , a lighting system driving circuit is provided, which is formed of an inductance element arranged in series with a light emitting element of the lighting system, and a power supply circuit for applying a voltage for a predetermined time to the light emitting element and the inductance element; An optical displacement detection device characterized by being configured to enable intermittent lighting. (2) In claim 1 of the utility model registration, the illumination system drive circuit is formed to include a second inductance element connected in parallel with the light emitting element and inductively coupled to the inductance element. Optical displacement detection device. (3) In claim 1 or 2 of the utility model registration claim, the power supply circuit includes a pulse signal generator that generates a drive pulse signal of a predetermined time width based on a command from the displacement detection circuit; An optical displacement detection device comprising a switching transistor that operates to apply a voltage to the light emitting element and the inductance element using a drive pulse signal output from a signal generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13643486U JPS6344112U (en) | 1986-09-05 | 1986-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13643486U JPS6344112U (en) | 1986-09-05 | 1986-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6344112U true JPS6344112U (en) | 1988-03-24 |
Family
ID=31039542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13643486U Pending JPS6344112U (en) | 1986-09-05 | 1986-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6344112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0227510U (en) * | 1988-08-11 | 1990-02-22 |
-
1986
- 1986-09-05 JP JP13643486U patent/JPS6344112U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0227510U (en) * | 1988-08-11 | 1990-02-22 |
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