Coin Drop sensors are electronic circuits used in detecting sound in any appliance or machine. Usually, it is used for amusement machines where they are mostly in maximum use for what is called as coin operated amusement machines. Some regular electronics professionals in the amusement industry however would love to call them coin fall sensor.
These coin fall sensors, for a fact are circuits that have sensitivity in their internal design. This is an essential part of it, otherwise, they wouldn't be called with their name, coin drop sensors or coin fall sensors. I found some circuits have a special adjustment that maintains or help limit the sensitivity of the circuit to effects on sound input. This sound input is from the fall of a coin, hence, the name coin fall sensor.
Aside their manual adjustments, a coin fall sensor may have the advantage of positioning. The position of the microphone will always be a good way to achieve the right sensitivity when times of difficulty in adjusting the sensitivity within its circuits arise.
Talking about microphones, this is a special sensitive microphone that is placed as the sound detector for the coin fall sensor because it is necessary to feed the input circuit of the coin fall sensor circuit as a whole in order to activate the sensitivity which is adjusted depending upon the set-up needed by the technician or the requirement of the machine.
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