DESIGN AND CONSTRUCTION OF SOUND DETECTOR WITH ALARM SYSTEM
ABSTRACT This project is design and construction of a sound detector with alarm system was done primarily to detector sound. It can be use in industrial and domestics. It employ four discreet stages with power supply which power the system. The 1st block is pick up amplifier containing the microphone and the input which serve as a transformer which the function is to pick up the smallest sound that comes close ...
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