What does a fire detector detects?
Answers were Sorted based on User's Feedback
Answer / andy
electro-catalytic detectors detects change in resistance
whereas ir-type detectors detects changes in intensity of IR
spectrum and alerts the system whenever they detects a fire
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Answer / gautam_etrx.engg
Ultraviolet rays (Earlier it was infrared rays)
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Answer / faiyaz
Fire detector detect the fire like UV-ultra violet ray and IR means Infra ray both are fire one is small fire and one is big fire generally used in Hazard area like compressor and condensate area
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Answer / saumyajit
in fire detectors normally we use photo resistors,which is used in wheatstone bridge circuit,in photo resistor conductivity changes as light intensity change.or we cud use photo diodes.(PN-diode,PIN-diode,avelanche diode)
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