Particle length and volume comeasurement with controlled orientation
US4290011A · kind A · utility
9Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1978 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | May 18, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/131
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of and means for controlling orientation of particles through a sensing zone in a particle analyzing system, which facilitates particle shape determination, comprises laminar flow orientation of the particles in a stream moving through an elongate straight passage coaxially aligned with an elongate sensing zone longer than the longest particle to be sensed and analyzed. The particles are carried through the sensing zone in an isokinetic laminar flow sheath of fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.