Fundamental Frequency

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Fundamental Frequency </dt>
1. Of a periodic quantity, the lowest component frequency of a sinusoidal quantity which has the same period as the periodic quantity. </dd>
2. Of an oscillating system, the lowest natural frequency. </dd>
''The normal mode of vibration associated with this frequency is known as the fundamental mode. </dd>
3. The reciprocal of the period of a wave. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use