Amplitude

Definition

Amplitude is the peak voltage of an acoustic emission signal, usually expressed in decibels (dB AE).

Explanation

It reflects the strength of the detected signal and is influenced by both source intensity and wave attenuation.

Key Notes

• Higher amplitude often indicates stronger activity
• Affected by distance and material
• Logarithmic unit (dB)
• Used in severity evaluation

Related Terms

AE Energy, Attenuation, Wave Propagation, Signal Strength