Flame detector self diagnostic system employing a modulated optical signal in composite with a flame detection signal
US5495112A · kind A · utility
13Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1994 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Dec 19, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2227/14
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A self diagnostic system for a flame detector. The system produces an optical determinant signal from an analog determinant signal that has a controllable amplitude and frequency. The system detects the optical determinant signal and the optical signal from the flame and processes both signals to thereby continuously monitor the flame while also continuously analyzing the operating status of the flame detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.