Online analysis device
US7787593B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2005 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Dec 30, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05G1/56
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An online analysis device, including a feed conveyor for supplying material, an X-ray tube, having an X-ray beam directed toward a measuring range on a feed conveyor, a control unit for actuating the X-ray tube, an X-ray detector that measures the radiation that interacts with, or is emitted by, the material, and a material detector for detecting material in the measuring range and generating a signal dependent thereon. To omit a mechanical shutter without reducing the service life of the tube, the material detector is connected to the control device, which controls the X-ray tube in dependence on the signal from the material detector in one of two states, where the heating current for the X-ray tube has the same order of magnitude in both states and the acceleration voltage in the first state is 5 kV to 100 kV and in the second state is less than 10 kV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.