Method and apparatus for time-phased constant IR energy delta source
US7026609B2 · kind B2 · utility
5Cited by
9References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Apr 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/53
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention comprises apparatus for calibrating a railway infrared hot box or hot wheel detector by delivering a desired radiant energy delta to the hot box detector. The apparatus comprises a solid state radiant energy source adapted to be positioned adjacent to the hot box detector being calibrated for emitting radiant energy along a path toward the hot box detector and a processor to cycle the solid state radiant energy source at a desired frequency and intensity between an on state and an off state to achieve the desired radiant energy delta.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.