Deadband

Band of input values yielding zero output

A deadband or dead-band is a band of input values in the domain of a transfer function in a control system or signal processing system where the output is zero. Deadband regions can be used in control systems such as servoamplifiers to prevent oscillation or repeated activation-deactivation cycles. A form of deadband that occurs in mechanical systems, compound machines such as gear trains is backlash.

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