Resonance Bandwidth Calculator

How Resonance Bandwidth works

The calculation uses bandwidth = f₀ ÷ Q. Resonance Bandwidth uses Resonant frequency, Quality factor to report Bandwidth.

With the loaded values, bandwidth evaluates to 500.00 Hz. Preserve the baseline before changing a value.

Inputs for Resonance Bandwidth

Resonant frequency and Quality factor belong to Resonance Bandwidth. Keep source units with resonant frequency.

The preset case is instructional rather than prescriptive. Enter the applicable electrical data. Use Series RL Impedance Calculator to find series resistance-inductance impedance magnitude.

Resonant frequency

Example entry: 10000 Hz.

Quality factor

Example entry: 20.

Reading the Resonance Bandwidth result

This output represents Resonance Bandwidth. Inductive reactance belongs in the separate Inductive Reactance worksheet.

Finish the selection with standard sizes, operating limits, and transient review.

Measurement and units

Use RMS quantities unless a field explicitly asks for peak amplitude. Check prefixes on resonant frequency.

Use the same unit basis and observation location in alternate cases.

Limits of this calculation

The symmetric limits are a narrow-band approximation.

A complete system can contain effects that this equation does not represent. Unentered effects remain outside Resonance Bandwidth. For real power, use Real Reactive Apparent Power Calculator.

A useful Resonance Bandwidth comparison

Record bandwidth before testing a different resonant frequency value. Period can be checked in Frequency Period Calculator.

Document the alternate resonant frequency source.

Questions about Resonance Bandwidth