| Main Title |
Particle Size Measurement by Photomultiplier (Kodenshi Zobaikan Ni Yoru Ryushikei No Sokutei). |
| Author |
Oki, Katsuya ;
Akehata, Takashi ;
Shirai., Takashi ;
|
| CORP Author |
Environmental Protection Agency, Research Triangle Park, N.C. Translation Services Section. |
| Year Published |
1974 |
| Report Number |
EPA-TR-35-75 ;APTIC-55707; |
| Stock Number |
PB-237 808-T |
| Additional Subjects |
Particle size ;
Measuring instruments ;
Optical instruments ;
Photomultiplier tubes ;
Translations ;
Japan ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-237 808-T |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
28p |
| Abstract |
A novel, convenient method of particle size measurement by use of a photomultiplier is proposed. The measuring equipment consisted of a source of parallel light beams and an optical fiber connected to a photomultiplier which was used as a detector for the variation of light intensity. When one particle passed through the detecting section, the output of the photomultiplier changed according to the diameter of the particle. The relationship between the photomultiplier output and the particle diameter was numerically computed by using the theory of geometrical optics, and the results were confirmed experimentally. This report describes the computed results, the circuit for measurement, the method of calibrating the detectors, the estimation of errors due to the coexistence of particles in the slit, and examples of particle size measurements. |
| Supplementary Notes |
Trans. of Funtai Kogaku Kenkyukai-shi (Japan) v10 n4 p195-203 May 73. |
| Title Annotations |
+++Particle Size Measurement by Photomultiplier (Kodenshi Zobaikan Ni Yoru Ryushikei No Sokutei)--Translation. |
| PUB Date Free Form |
Sep 74 |
| Category Codes |
14B |
| NTIS Prices |
PC A03/MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
326596223 |
| Origin |
NTIS |
| Type |
CAT |
