JPS5451551A - Laser position detector - Google Patents
Laser position detectorInfo
- Publication number
- JPS5451551A JPS5451551A JP11684677A JP11684677A JPS5451551A JP S5451551 A JPS5451551 A JP S5451551A JP 11684677 A JP11684677 A JP 11684677A JP 11684677 A JP11684677 A JP 11684677A JP S5451551 A JPS5451551 A JP S5451551A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- laser beam
- output voltage
- output
- subtraction circuit
- 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.)
- Granted
Links
Landscapes
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Optical Transform (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
PURPOSE: To detect the central position of a laser beam within a short time with good accuracy irrespective of the rotating speed of the laser beam section by subjecting servo motor to proportional controlling according to the output votlage of a second subtraction circuit.
CONSTITUTION: Two photoelectric transducers 1, 2 are integrally formed to receive a laser beam. The maximum values of the output voltages of the respective elements are detected and held with detection circuits 14, 15. The difference in both output voltages is operated with a first subtraction circuit 16. The sum 18 of the output voltage of this circuit 16 and the output voltage of the potentiometer 17 cooperating with the movement of the boundary line C of the elements 1, 2 is temporarily stored in a sample holding circuit 19 and the circuit 19 is put in a sample holding state by the insturction of a comparator 21, after which the holding of the maximum value detection circuits 14, 15 is released with a delay circuit 22. Next, the difference in the output voltage of the potentiometer 17 is operated with a second subtraction circuit 23 and according to the output voltage thereof a servo motor 9 is subjected to proportional controlling, whereby the boundary line C of the photoelectric transducers 1, 2 is aligned to the centerline B of the beam section A irrespective of the rotation of the laser beam
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11684677A JPS5941521B2 (en) | 1977-09-30 | 1977-09-30 | Laser position detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11684677A JPS5941521B2 (en) | 1977-09-30 | 1977-09-30 | Laser position detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5451551A true JPS5451551A (en) | 1979-04-23 |
| JPS5941521B2 JPS5941521B2 (en) | 1984-10-08 |
Family
ID=14697068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11684677A Expired JPS5941521B2 (en) | 1977-09-30 | 1977-09-30 | Laser position detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5941521B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5630242A (en) * | 1979-08-20 | 1981-03-26 | Jeol Ltd | Automatic axis-matching device for electron rays device |
| JPS5865801A (en) * | 1981-09-25 | 1983-04-19 | エス・アイ・ジ−・ソシエテ・アンデユストリエル・スイス | Construction machine for railroad |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0271618U (en) * | 1988-11-18 | 1990-05-31 |
-
1977
- 1977-09-30 JP JP11684677A patent/JPS5941521B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5630242A (en) * | 1979-08-20 | 1981-03-26 | Jeol Ltd | Automatic axis-matching device for electron rays device |
| JPS5865801A (en) * | 1981-09-25 | 1983-04-19 | エス・アイ・ジ−・ソシエテ・アンデユストリエル・スイス | Construction machine for railroad |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5941521B2 (en) | 1984-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK164415C (en) | SENSOR DETECTOR ON OR IN AN OBJECT | |
| JPS5451551A (en) | Laser position detector | |
| JPS5262043A (en) | Automatic testing instrument | |
| JPS54935A (en) | Pattern detector | |
| JPS5654359A (en) | Abnormality detecting method in vehicle speed measurement | |
| JPS51131685A (en) | Equipment to detect a crack of moving materials | |
| JPS55103090A (en) | Speed controller for motor | |
| JPS5669505A (en) | Laser position detecting device | |
| JPS54138466A (en) | Measuring method of sliding face width of trolley wires | |
| JPS54139381A (en) | Mark position detector in electron beam exposure | |
| JPS55143454A (en) | Level detector | |
| JPS57182112A (en) | Range detector | |
| JPS54115154A (en) | Displacement position detector | |
| JPS5367473A (en) | Speed detector | |
| JPS5543912A (en) | Ignition abnormality detector of thyristor converting device | |
| JPS55138649A (en) | Flaw position detecting and marking device | |
| JPS5682464A (en) | Partial discharge measuring method of power cable | |
| JPS54138474A (en) | Speed detecting method | |
| JPS55122269A (en) | Player unit | |
| JPS53104283A (en) | Input level detection circuit | |
| JPS539581A (en) | Detecting method for reactive power | |
| JPS5377551A (en) | Position detecting mechanism inspecting apparatus | |
| JPS54101143A (en) | Protective relay | |
| JPS51134175A (en) | Supersonic inspection device | |
| JPH0320684B2 (en) |