Beam phasing method and apparatus for adjusting a timing of beam projections
US10277355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2017 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Dec 14, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0699
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for adjusting the timing of beam projections in a beam detector. The method includes projecting a beam for the purpose of detecting obscuration of the beam and, if a level of signal of the beam detected is less than a threshold for each of a number of consecutive projections or for each consecutive projection over a pre-determined time period, initiating a warning, signalling an alarm or otherwise reacting. The method further includes adjusting the timing of projecting the beam from a nominal transmit interval ‘T’ to be within a window time-period ‘W’ extending from an amount before to an amount after the nominal transmit interval ‘T’.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.