The time constant must be at least 20ms to avoid contact bounce.

I have attempted to create some contact bounce as shown below.

Despite this, the mercury relay does have a very low contact bounce time, in the sub-millisecond range.

Contact bounce (also called chatter) is a common problem with mechanical switches and relays.

It is necessary to apply 'clean' pulses to the clock input, Ck1, to avoid the effects of contact bounce.

Viper Mailer has also added undeliverable message contact bounce back management features.

Rapid closing can, however, lead to increase contact bounce which causes additional unwanted open-close cycles.

If the power is switched through a normal toggle switch, the contact bounce can very easily cause the memory to be corrupted.

There are no moving parts to wear out and there is no contact bounce due to vibration.

This and similar techniques are used to compensate for contact bounce in switches, or noise in an electrical signal.

Static relays eliminated or reduced contact bounce, and could provide fast operation, long life and low maintenance.

It does not suffer from contact bounce because a solid state switch with hysteresis is used rather than a mechanical contact.

After pressing the S2 pushbutton, the number of contact bounces will be displayed as a binary number on the LEDs.

Debouncing compensates for jitter in an electrical switch (see Contact Bounce section in Switch article).

Schmitt trigger devices are typically used in signal conditioning applications to remove noise from signals used in digital circuits, particularly mechanical contact bounce.

A single breaker driven by a cam and a return spring is limited in spark rate by the onset of contact bounce or float at high rpm.

The effects of contact bounce can be eliminated by use of mercury-wetted contacts, but these are now infrequently used because of the hazard of mercury release.

Where not otherwise stated, the functioning time of the contact in question is taken as its initial actuation time (that is, it does not include contact bounce time).

One solution is to have bifurcated contacts to minimize contact bounce; two contacts designed to close simultaneously, but bounce at different times so the circuit will not be briefly disconnected and cause an arc.

Normally, humans wouldn't see the effect of the contact bounce, but since a microcontroller can check the state of a switch millions of times per second, it might sense every bounce as a separate swich activation.

In digital systems, multiple samples of the contact state can be taken or a time delay can be implemented in order for the contact bounce to settle before the contact input is used to control anything.

Such relays are used to switch low-voltage signals (one volt or less) where the mercury reduces the contact resistance and associated voltage drop, for low-current signals where surface contamination may make for a poor contact, or for high-speed applications where the mercury eliminates contact bounce.

The turbo switch usually had to be installed together with the pause switch, because the simplest circuit for switching the clock speed produced bad shapes in the clock signal due to contact bounce when the mechanical switch was flipped, running the risk of hanging the software execution unless the processor was in the suspended state.