JPS5767841A - Sizing device used for calibrating device for measuring device of mass and concentration of dust - Google Patents
Sizing device used for calibrating device for measuring device of mass and concentration of dustInfo
- Publication number
- JPS5767841A JPS5767841A JP14510180A JP14510180A JPS5767841A JP S5767841 A JPS5767841 A JP S5767841A JP 14510180 A JP14510180 A JP 14510180A JP 14510180 A JP14510180 A JP 14510180A JP S5767841 A JPS5767841 A JP S5767841A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- inside diameter
- sizing
- dust
- approximately
- 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
- 238000004513 sizing Methods 0.000 title abstract 4
- 239000000428 dust Substances 0.000 title abstract 3
- 238000005070 sampling Methods 0.000 abstract 2
- 230000001133 acceleration Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
PURPOSE:To size dust surely and perform sizing of high accuracy by setting the inside diameter of a smapling nozzle slightly larger than the inside diameter of an accelerating nozzle, and the spacing between the end edges where said nozzles oppose to each other slightly smaller than the inside diameter of the nozzle. CONSTITUTION:Air contg., for example. dust, which is a measuring object, is sucked through a sampling port 1 by the operation of each pump, and is sucked into a sizing device 4 past an acceleration nozzle 2. If in this case the ratio of the inside diameter A of the nozzle 2 to the inside diameter B of the nozzle 3 is set at, for example, approximately 1, 3 and the ratio of the nozzles 2, 3 at, for example, approximately 0.89, and further the flow rate ratio of the sampling air flow rate Q of the port 1 and the suction flow rate Q1 of a suction pipe 6 at, for example, approximately 0.1, the desirable results of sizing is obtained, hence the calibration of extremely high accuracy is accomplished.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14510180A JPS5767841A (en) | 1980-10-16 | 1980-10-16 | Sizing device used for calibrating device for measuring device of mass and concentration of dust |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14510180A JPS5767841A (en) | 1980-10-16 | 1980-10-16 | Sizing device used for calibrating device for measuring device of mass and concentration of dust |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5767841A true JPS5767841A (en) | 1982-04-24 |
JPS6151732B2 JPS6151732B2 (en) | 1986-11-10 |
Family
ID=15377386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14510180A Granted JPS5767841A (en) | 1980-10-16 | 1980-10-16 | Sizing device used for calibrating device for measuring device of mass and concentration of dust |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5767841A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0249708Y2 (en) * | 1986-08-18 | 1990-12-27 | ||
JPH0434902Y2 (en) * | 1987-01-13 | 1992-08-19 | ||
JPS6433930A (en) * | 1987-07-29 | 1989-02-03 | Sanken Electric Co Ltd | Spinner type photoresist developing method |
-
1980
- 1980-10-16 JP JP14510180A patent/JPS5767841A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6151732B2 (en) | 1986-11-10 |
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