JPS6488137A - Densitometer for suspended dust - Google Patents
Densitometer for suspended dustInfo
- Publication number
- JPS6488137A JPS6488137A JP62243562A JP24356287A JPS6488137A JP S6488137 A JPS6488137 A JP S6488137A JP 62243562 A JP62243562 A JP 62243562A JP 24356287 A JP24356287 A JP 24356287A JP S6488137 A JPS6488137 A JP S6488137A
- Authority
- JP
- Japan
- Prior art keywords
- densitometer
- couple
- generated
- luminous flux
- transmission holes
- 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
- 239000000428 dust Substances 0.000 title abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 3
- 230000004907 flux Effects 0.000 abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 238000000149 argon plasma sintering Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE:To improve a mass density conversion coefficient based upon particle size dependency and to reduce the size and weight of the densitometer by arranging masks which has a couple of light transmission holes in front of and behind a condenser lens and photodetecting scattered light which is generated in the long-diameter direction of parallel luminous flux and travels forward. CONSTITUTION:The masks 23 an 25 having the couple of light transmission holes 30 and 30 are arranged in front of and behind condenser lenses 28 and 29 of the forward scattering photodetection type densitometer for suspended dust measurement. Then scattered light is generated when a collected air flow containing suspended dust passes through the parallel luminous flux 17 at an air flow cell part 8. Then a photosensor 15 photodetects only the scattered light which is generated by the couple of light transmission holes 30 and 30 in the long-diameter direction of the parallel luminous flux 17 and travels forward. Consequently, the mass density conversion coefficient based upon the grain size dependency characteristic to light scattering is improved to reduce the capacity and weight of the densitometer to half.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62243562A JPS6488137A (en) | 1987-09-30 | 1987-09-30 | Densitometer for suspended dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62243562A JPS6488137A (en) | 1987-09-30 | 1987-09-30 | Densitometer for suspended dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6488137A true JPS6488137A (en) | 1989-04-03 |
Family
ID=17105690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62243562A Pending JPS6488137A (en) | 1987-09-30 | 1987-09-30 | Densitometer for suspended dust |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6488137A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009531658A (en) * | 2006-03-23 | 2009-09-03 | ハック・カンパニー | Measurement of light from a predefined scattering angle from a particle object in a medium |
| JP2016517526A (en) * | 2013-03-15 | 2016-06-16 | ベックマン コールター， インコーポレイテッド | Synchrotron radiation filtering for flow cytometers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50123489A (en) * | 1974-03-18 | 1975-09-27 | ||
| JPS53143286A (en) * | 1977-03-28 | 1978-12-13 | Chromatix | Scattering photometer and sampling device thereof |
-
1987
- 1987-09-30 JP JP62243562A patent/JPS6488137A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50123489A (en) * | 1974-03-18 | 1975-09-27 | ||
| JPS53143286A (en) * | 1977-03-28 | 1978-12-13 | Chromatix | Scattering photometer and sampling device thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009531658A (en) * | 2006-03-23 | 2009-09-03 | ハック・カンパニー | Measurement of light from a predefined scattering angle from a particle object in a medium |
| JP2016517526A (en) * | 2013-03-15 | 2016-06-16 | ベックマン コールター， インコーポレイテッド | Synchrotron radiation filtering for flow cytometers |
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