Re: The mechanism behind bouncing...

snip

Oscillatory behavior is described by a differential equation of the
2nd or higher order, and friction is just one of the terms. In plain
English, if you want a bounce you need a spring. Friction doesn't
cause bouncing, it *dampens* bouncing. Non-springy swiches, like tact
and membranes, do bounce because of grotty, sliding contacts, and the
bounce pattern more random, less oscillatory than that of a toggle
switch or a relay.

Contact bounce is easily observed optically, and acoustically, and
matches electrical bounce almost exactly. Try it.

John




give up. Ignorance is fixable, stupid is not...

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