Canonical: https://echosuite.app/guides/wave-relations/

# Wave relationships calculator

Explore wave relationships with the method’s inputs, acquisition guidance and source references. Open the calculator to enter measurements or try an illustrative worked example.

Created by [Mohammed Kamareddine, MD](https://echosuite.app/about/) · [Sources & educational scope](https://echosuite.app/about/)

[Open interactive calculator →](https://echosuite.app/calculators/#wave-relations)

## Method

Period = 1/f; wavelength = c/f; pulse duration = period × cycles

Use the measurement units shown below. Some fields apply only to a selected method or condition; follow the interactive tool’s method choices. The interactive tool keeps missing measurements incomplete and provides its method-specific results and reference context.

## Measurements and acquisition

### Transmit frequency  MHz

Enter the measured value in the displayed unit

- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.

### Sound speed  m/s

Enter the measured value in the displayed unit

- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.

### Cycles per pulse

Enter the measured value in the displayed unit

- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.

## Sources and method context

OpenStax · Rice University · 2016 · University Physics Volume 1 · Traveling waves · §16.1 · wave period, frequency and speed; equation 16.1

[Primary reference](https://openstax.org/books/university-physics-volume-1/pages/16-1-traveling-waves)

- Wave relationships · §16.1 · equation 16.1

Period is the reciprocal of frequency; wavelength is propagation speed divided by frequency. A burst of n cycles has duration n times the period. Particle oscillation is distinct from propagation of the disturbance.

Catalogue review status: Source mapped · clinical sign-off pending

These pages describe the educational tool. Interpret measurements with the complete clinical context and the method’s acquisition limitations.

## Keep exploring

- [Pulse repetition and Nyquist calculator](https://echosuite.app/guides/pulse-repetition/)
- [Pulse length and near field calculator](https://echosuite.app/guides/pulse-geometry/)
- [Doppler equation calculator](https://echosuite.app/guides/doppler-equation/)
- [Acoustic impedance and intensity calculator](https://echosuite.app/guides/acoustic/)

[All echo guides](https://echosuite.app/guides/) · [Learning paths](https://echosuite.app/learn/)