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How does the electric carbon monoxide detector in cabin or cockpit on aircraft work?

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  • $\begingroup$ You may find the Wikipedia article on Carbon monoxide detector informative. That article mostly talks about home detectors, but the technology is the same. $\endgroup$ – Greg Hewgill Sep 14 '17 at 3:27
  • $\begingroup$ Related, "Carbon Monoxide Detectors" on AVweb. $\endgroup$ – mins Sep 14 '17 at 7:30
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    $\begingroup$ The amount of fire-on-aircraft quesitons you are asking is worrisome :-) $\endgroup$ – Caterpillaraoz Sep 14 '17 at 10:06
  • $\begingroup$ I am currently working on description and operation of fire detention systems for my first shop rotation. $\endgroup$ – Myat Khant Sep 14 '17 at 10:08
  • $\begingroup$ @MyatKhant: Good to know you're not an aspiring arsonist! :-P $\endgroup$ – Sean May 6 at 3:46
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There are three major types of carbon monoxide senors.

  • Biomimetic: A gel changes color when it absorbs carbon monoxide.
  • Metal oxide semiconductor: When the chip's circuit detects carbon monoxide, electrical resistance decreases, and this triggers an alarm.
  • Electrochemical: Electrodes immersed in a chemical solution sense changes in current when they come into contact with carbon monoxide, and this change triggers the alarm.
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