Apparatus and method for analysis of size, form and angularity and for compositional analysis of mineral and rock particles
US8233667B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2005 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Oct 30, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Equipment and process for three-dimensional measurement of size and shape and for compositional analysis of mineral and rock particles and the like objects. A mixture of particles or objects of same or different sizes of minerals or rocks or the like are fed individually and automatically onto a conveyor belt for three-dimensional machine vision measurements using laser and two cameras and subsequently for spectroscopic measurements using visible and infrared light and are then collected at the end of the conveyor. Computer software is used to perform the measurement automatically and to calculate size, form, roundness, and preferably petrographic composition and other characteristics or properties of each individual object and the statistical distribution of relevant properties, either according to built-in measurement processes or user specific methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.