JPS6474433A - Particle detecting device - Google Patents
Particle detecting deviceInfo
- Publication number
- JPS6474433A JPS6474433A JP62231819A JP23181987A JPS6474433A JP S6474433 A JPS6474433 A JP S6474433A JP 62231819 A JP62231819 A JP 62231819A JP 23181987 A JP23181987 A JP 23181987A JP S6474433 A JPS6474433 A JP S6474433A
- Authority
- JP
- Japan
- Prior art keywords
- particle
- photodetection
- light
- detected
- area
- 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
- 239000002245 particle Substances 0.000 title abstract 8
- 238000001514 detection method Methods 0.000 abstract 3
- 230000035945 sensitivity Effects 0.000 abstract 2
- 230000003321 amplification Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE:To detect the size and shape of a particle with the same sensitivity by putting an area to be detected in partial charge of photodetection systems and photodetecting scattered light from the particle, and photodetecting respective photodetection signals by amplifiers which differ in amplification factor. CONSTITUTION:A laser light source 11 emits laser beam light l1. The beam light l1 is made incident on a projection optical system 12 and sheet-shaped laser light l2 is projected on the area 16 to be detected where the particle 17 is detected. The photodetection systems 13a-13d such as photoelectric converting elements photodetect the scattered light with the beam light l2 projected on the particle 17 passed through the area 16. A photodetection processing control system 14 which processes the photodetection signals of the scattered light of the particle 17 photodetected by the photodetection systems 13a-13d consists of a control system 41, an adder 42 and plural amplifiers 43a-43d. Then a detection error due to the detection position of the particle 17 and its incident light intensity and scattered light photodetection angle resulting from the expansion of the area 16 is eliminated. Consequently, the size and shape of the particle are detected with the same detection sensitivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62231819A JPS6474433A (en) | 1987-09-16 | 1987-09-16 | Particle detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62231819A JPS6474433A (en) | 1987-09-16 | 1987-09-16 | Particle detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6474433A true JPS6474433A (en) | 1989-03-20 |
Family
ID=16929514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62231819A Pending JPS6474433A (en) | 1987-09-16 | 1987-09-16 | Particle detecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6474433A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010106179A (en) * | 2008-10-31 | 2010-05-13 | Toray Ind Inc | Method for producing polyarylene sulfide resin |
| JP2016105043A (en) * | 2014-12-01 | 2016-06-09 | 三菱電機株式会社 | Suspended particle detector |
| CN108709847A (en) * | 2018-06-22 | 2018-10-26 | 佛山融芯智感科技有限公司 | A kind of air particles detection method and detection device |
-
1987
- 1987-09-16 JP JP62231819A patent/JPS6474433A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010106179A (en) * | 2008-10-31 | 2010-05-13 | Toray Ind Inc | Method for producing polyarylene sulfide resin |
| JP2016105043A (en) * | 2014-12-01 | 2016-06-09 | 三菱電機株式会社 | Suspended particle detector |
| CN108709847A (en) * | 2018-06-22 | 2018-10-26 | 佛山融芯智感科技有限公司 | A kind of air particles detection method and detection device |
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