JPS5872611U - Outer diameter measuring instrument - Google Patents
Outer diameter measuring instrumentInfo
- Publication number
- JPS5872611U JPS5872611U JP16858281U JP16858281U JPS5872611U JP S5872611 U JPS5872611 U JP S5872611U JP 16858281 U JP16858281 U JP 16858281U JP 16858281 U JP16858281 U JP 16858281U JP S5872611 U JPS5872611 U JP S5872611U
- Authority
- JP
- Japan
- Prior art keywords
- outer diameter
- reference piece
- measured
- pulse
- scanning
- 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
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (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
第１図は実施例、第２図は演算処理部のブロック図（１
）、第３図は各部の出力波形、第４図は演算処理部のブ
ロック図（２）である。
図において、１・・・レーザー発光部、２・・・ミラー
、３・・・回転鏡、４・・・Ｆθレンズ、５・・・集光
レンズ、６・・・受光素子、７・・・基準片、８・・・
被測定物、１１・・・２値化回路、１２・・・パルス分
離回路、１３・・・基準クロック発生回路、１４．１５
・・・ゲート回路、１６．１７・・・計数回路、１８・
・・較正回路（１）、１９・・・乗算回路、２０・・・
基準片外径設定スイッチ、２１・・・較正回路（２）で
ある。Figure 1 is an embodiment, and Figure 2 is a block diagram of the arithmetic processing unit (1
), FIG. 3 shows the output waveforms of each section, and FIG. 4 is a block diagram (2) of the arithmetic processing section. In the figure, 1... Laser emitting unit, 2... Mirror, 3... Rotating mirror, 4... Fθ lens, 5... Condensing lens, 6... Light receiving element, 7... Reference piece, 8...
Object to be measured, 11... Binarization circuit, 12... Pulse separation circuit, 13... Reference clock generation circuit, 14.15
...Gate circuit, 16.17...Counting circuit, 18.
... Calibration circuit (1), 19... Multiplication circuit, 20...
Reference piece outer diameter setting switch, 21... Calibration circuit (2).
Claims (1)
ーザービームを走査する回転鏡とＦθレンズよりなる走
査光学系とレーザービーム走査線上の一部に固定された
外径既知の基準片と、前記基準片の後方に位置する走査
ビーム集光レンズと受光素子からなる検出部と前記検出
部から得られる基準片の外径に対応する第１のパルスと
前記基準片の給傍に基準片と平行に設置される被測定物
の外径に対応する第２のパルスの巾を、同−走査時に別
々に時間計測し、前記第１および第２のパルス巾の比と
既知の基準片外径とから被測定物の外径を計算する。演
算処理部とから構成されることを特徴とする外径測定器
。A scanning optical system consisting of a laser emitting unit, a rotating mirror and an Fθ lens that scans the laser beam emitted from the laser emitting unit, a reference piece with a known outer diameter fixed to a part of the laser beam scanning line, and a reference piece of the reference piece. A detection unit consisting of a scanning beam condensing lens and a light receiving element located at the rear, a first pulse corresponding to the outer diameter of the reference piece obtained from the detection unit, and a first pulse set parallel to the reference piece near the reference piece. The width of the second pulse corresponding to the outer diameter of the object to be measured is measured separately during the same scanning, and the width of the second pulse corresponding to the outer diameter of the object to be measured is measured based on the ratio of the first and second pulse widths and the known outer diameter of the reference piece. Calculate the outer diameter of an object. An outer diameter measuring instrument characterized by comprising a calculation processing section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16858281U JPS5872611U (en) | 1981-11-12 | 1981-11-12 | Outer diameter measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16858281U JPS5872611U (en) | 1981-11-12 | 1981-11-12 | Outer diameter measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5872611U true JPS5872611U (en) | 1983-05-17 |
Family
ID=29960624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16858281U Pending JPS5872611U (en) | 1981-11-12 | 1981-11-12 | Outer diameter measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5872611U (en) |
-
1981
- 1981-11-12 JP JP16858281U patent/JPS5872611U/en active Pending
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