Chapter 14: Sinusoidal Steady State: Resonance vocab

Resonant Circuit

A circuit that can strongly respond or oscillate near a particular frequency.

Resonant System

A system with complex roots that can show oscillatory behavior.

Resonance

The condition where inductive and capacitive effects cancel at a specific frequency

Resonant Frequency

The frequency where a resonant circuit has its strongest characteristic response.

Center Frequency

Another name for the resonant frequency of a filter.

Natural Response

The decaying response caused by energy initially stored in the circuit.

Forced Response

The response caused by a continuing external input signal.

Damped Natural Frequency

The frequency at which a damped resonant circuit naturally oscillates.

Beating

A varying amplitude pattern caused by combining two signals with nearby frequencies.

Quality Factor

A measure of resonance sharpness, selectivity, and ringing duration.

Bandwidth

The range of frequencies passed effectively by a resonant circuit or filter.

Selectivity

A filter’s ability to pass desired frequencies while rejecting nearby unwanted frequencies.

Resonant Region

The frequency range near resonance where gain and phase change sharply.

Parallel Resonance

Resonance in a parallel RLC circuit, where impedance and output voltage are maximum.

Series Resonance

Resonance in a series RLC circuit, where impedance is minimum and current is maximum.

Voltage Magnification

The condition where voltage across an inductor or capacitor exceeds the input voltage near series resonance.

Band-Pass Filter

A filter that passes frequencies in a selected middle range.

Band-Stop Filter

A filter that blocks frequencies in a selected middle range.

Notch Filter

Another name for a band-stop filter.

Resonance Peak

The maximum in a frequency-response magnitude plot near resonance.

Energy Accumulator

A resonant system that continuously stores energy received near its resonant frequency.