Research on NOFRF Entropy-Based Detection Method for Early Damage of Pillar Porcelain Insulator

<div>The spectrum of response signal in the harmonic detection. (a) The spectrum of response signal of healthy pillar porcelain insulator. (b) The spectrum of response signal of cracked pillar porcelain insulator.</div>

Shock and Vibration

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Figure 15

Figure 15: Research on NOFRF Entropy-Based Detection Method for Early Damage of Pillar Porcelain Insulator 