Apparatus for determining grain size
US4755052A · kind A · utility
5Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1986 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Jun 5, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/4716
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for determining grain size distribution patterns of particles for selected measuring ranges, wherein a specimen cell (15) is arranged in a convergent monochromatic light beam (4) and the produced diffraction patterns (5a, 6a, 7a) are received by a photo detector. By altering the spacing of the specimen cell (15) from the photo detector (44), the measuring range can be selected for differing grain sizes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.