Rod inspection method and apparatus
US11412777B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2018 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Mar 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/621
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining the density of an elongate rod of material as it travels in a longitudinal direction through an inspection zone of apparatus for determining the density of an elongate rod of material is disclosed. The method comprises: positioning an X-ray generator of said apparatus to transmit X-rays in a direction across the elongate rod and towards a detector of said apparatus, as the elongate rod travels in a longitudinal direction through said inspection zone of said apparatus; supplying a voltage to the X-ray generator of between 20 to 80 kV to transmit the X-rays at a predetermined intensity; detecting the intensity of the X-rays transmitted through the elongate rod using the detector, and determining a density of the elongate rod based on a comparison of the predetermined and detected intensities. A method of manufacturing tobacco industry products that includes the above inspection method is also disclosed, together with apparatus for determining the density of an elongate rod of material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.