Frequency Analysis

Definition

Frequency analysis is the process of examining the frequency components of acoustic emission signals.

Explanation

Different AE sources often generate different frequency characteristics, making frequency analysis useful for source identification and noise discrimination.

Key Notes

• Uses FFT or spectral methods
• Helps classify damage mechanisms
• Useful for filtering noise
• Common in advanced AE systems

Applications

• Crack classification
• Leakage analysis
• Composite monitoring
• Noise discrimination

FAQ

Q: Why do AE signals have different frequencies?

Different physical damage mechanisms produce different wave characteristics and frequency content.

Q: Can frequency analysis separate noise from real AE signals?

Yes, many noise sources have distinct frequency characteristics compared to damage-related AE signals.

Related Terms

FFT, Waveform Analysis, Peak Frequency