Detectors 125
Detectors 125 : Particle Detectors: (4.11) Flame Detector: (1) Optical Types: (1. 3) Infrared: Infrared (IR) flame detectors work within the infrared spectral band. Hot gases emit a specific spectral pattern in the infrared region, which can be sensed with a thermal imaging camera (TIC) a type ofthermographic camera. False alarms can be caused by other hot surfaces and background thermal radiation in the area as well as blinding from water and solar energy. A typical frequency where single frequency IR flame detector is sensitive is in the 4. 4 micrometre range. Typical response time is 3-5 seconds
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