Clipping Signals in FFT Analysis Can Mislead Diagnosis

Clipping signals in FFT analysis can mislead by flattening sine waves, creating false harmonics, and obscuring true fault signatures.

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Why & How Clipping Signals Can Mislead Your FFT Analysis

When a sensor or ADC clips the signal, the sine wave gets flattened.
🔊 In time-domain → smooth wave turns square-like.
📊 In frequency-domain (FFT) → extra false harmonics appear, hiding the real fault signature.

Post Information
Category: Vibration Case Study
Language: English
Reading Time: 1 min
Tags
clipping diagnosis
Original Authors
Samarjit Behera
Shared By
Reliability

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