Flame detector

• Flame detectors are optical sensors to detect the electromagnetic energy radiated from a fire ( such as UV, IR ) . 
• Due to their fast detection capabilities , flame detectors are generally used only in high-hazard areas , such as fuel-loading platforms , industrial process areas , hyperbaric chambers , high-ceiling areas , and atmospheres in which explosions or very rapid fires may occur . 
• Because flame detectors must be able to" see " the fire , they must not be blocked by objects placed in front of them . 
• Common flame detectors are : 
• A) Ultra violet detector 
• B) Infra-red detector