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Fire alarm Coursework
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- Words:
- 1567
- Submitted:
- Tue Nov 18 2008
- Mark submitted by Author:
... Fire Alarm Aim: The aim of this project is to create a fire alarm which will detect fire or the effects of fire and as a result, with a buzzer, aware any occupants and persons in the surrounding area. To do this, I have researched how to construct this particular circuit. Fire is a major hazard and without the proper warning indications, can lead to devastating consequences. This is a device that can solve this life-threatening problem. Research> From reading through a basic guide to fire alarms from www.firesafe.com, I have learnt that a minimum of 65 dB is required for a fire alarm in general areas or 5 dB above any background noise which persists for more than 30 seconds. If the alarm is to be placed where people are sleeping and are to be woken then 75 dB is required at the bedhead.> A thermistor with a resistance of
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