Advanced Diagnostics
Cepstrum Analysis
CepstrumSecond-order spectrum detection: Quefrency peaks (rahmonics) indicate periodic sidebands and harmonic series. Useful for bearing fault detection.
Waterfall (3D Spectrum)
WaterfallCross-Phase Analysis
PhaseCross-Spectrum Magnitude
Phase Relationship
Phase lag indicates mechanical misalignment or loose connections between measurement points.
Order Analysis
OrderSpeed-normalized spectrum. Harmonic markers at 1X (running speed), 2X, 3X, etc. show synchronous faults. BPFO, BPFI, BSF, FTF markers overlay bearing fault frequencies.
Order Envelope Analysis
EnvelopeTime Domain Envelope
Envelope Order Spectrum
Multi-Waveform Comparison
WaveformOverlay up to 4 time-domain captures. Trend visualization shows waveform evolution over time.
Multi-Spectrum Comparison
SpectrumCompare FFT spectra across multiple time points to track frequency content evolution.
Time Domain Statistical Indices
IndicesAudio Analysis
AudioAudio Waveform
Audio Spectrum
Orbit Plot
OrbitX–Y displacement orbit from paired proximity probes. Orbit shape indicates rotor imbalance, misalignment, or rub conditions.
Signal Filtering Tools
FilterOriginal Signal
Filtered Signal
| Filter Parameter | Value |
|---|---|
| Filter Order | 4 (Butterworth) |
| Attenuation (dB) | −40 dB/decade |
| Phase Shift | Corrected (0-phase) |
| Nyquist Compliance | ✓ Satisfied |