JPH02101294U - - Google Patents
Info
- Publication number
- JPH02101294U JPH02101294U JP972889U JP972889U JPH02101294U JP H02101294 U JPH02101294 U JP H02101294U JP 972889 U JP972889 U JP 972889U JP 972889 U JP972889 U JP 972889U JP H02101294 U JPH02101294 U JP H02101294U
- Authority
- JP
- Japan
- Prior art keywords
- synchronization signal
- light
- light beam
- synchronization
- power
- 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
- 238000001514 detection method Methods 0.000 claims 4
- 230000003287 optical effect Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Description
第１図は本考案の一実施例のブロツク構成図、
第２図はその要部の電気回路図、第３図は第２図
の各部の動作電圧の波形図、第４図は従来装置の
ブロツク構成図である。
１……投光器、３……発振器（同期信号発生部
）、４……受光器、９……電源同期回路、Ｈ……
被検知物体。
FIG. 1 is a block diagram of an embodiment of the present invention.
FIG. 2 is an electric circuit diagram of the main parts thereof, FIG. 3 is a waveform diagram of the operating voltage of each part in FIG. 2, and FIG. 4 is a block diagram of the conventional device. 1... Emitter, 3... Oscillator (synchronizing signal generating section), 4... Light receiver, 9... Power synchronization circuit, H...
Detected object.
Claims (1)
グで投光器から所定の検知エリアに向けて投光ビ
ームを出射し、この投光ビームの被検知物体によ
る反射光を受光器で受光し、この受光器で受光す
る反射光量の変化により前記検知エリア内への物
体の進入を検知する光線式移動物体検知装置にお
いて、前記同期信号発生部の同期信号を商用交流
電源の電源周波数に対応する一定周期毎に電源周
波数に同期させる同期補正信号を出力する電源同
期回路を設けたことを特徴とする光線式移動物体
検知装置。 The emitter emits a light beam toward a predetermined detection area at the light projection timing according to the synchronization signal of the synchronization signal generator, and the light receiver receives the reflected light of this light beam from the object to be detected. In an optical moving object detection device that detects the entry of an object into the detection area based on a change in the amount of reflected light received, the synchronization signal from the synchronization signal generator is output to the power supply at regular intervals corresponding to the power frequency of the commercial AC power supply. A light beam type moving object detection device characterized by being provided with a power synchronization circuit that outputs a synchronization correction signal synchronized with a frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP972889U JPH02101294U (en) | 1989-01-30 | 1989-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP972889U JPH02101294U (en) | 1989-01-30 | 1989-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02101294U true JPH02101294U (en) | 1990-08-13 |
Family
ID=31216729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP972889U Pending JPH02101294U (en) | 1989-01-30 | 1989-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02101294U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59139518A (en) * | 1983-01-31 | 1984-08-10 | 松下電工株式会社 | Photoelectric switch |
| JPS6033670B2 (en) * | 1981-09-05 | 1985-08-03 | 元吉 長田 | Manufacturing method of concrete board with rubber chip layer formed on the surface |
-
1989
- 1989-01-30 JP JP972889U patent/JPH02101294U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6033670B2 (en) * | 1981-09-05 | 1985-08-03 | 元吉 長田 | Manufacturing method of concrete board with rubber chip layer formed on the surface |
| JPS59139518A (en) * | 1983-01-31 | 1984-08-10 | 松下電工株式会社 | Photoelectric switch |
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