detect_bearing_faults
Analyze stator current spectrum to detect bearing defect sidebands, identifying faults like BPFO, BPFI, BSF, or FTF for condition monitoring.
Instructions
Detect bearing defect signatures in the stator-current spectrum.
Bearing faults modulate motor torque, creating sidebands at f_s ± k·f_defect. Note: bearing signatures in current are typically weak; envelope analysis or vibration data can improve detection.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| spectrum_id | No | ID of a stored spectrum. Preferred over raw arrays. | |
| frequencies_hz | No | Spectrum frequency axis (Hz). Use spectrum_id instead. | |
| amplitudes | No | Spectrum amplitude values. Use spectrum_id instead. | |
| supply_freq_hz | No | Supply frequency in Hz | |
| bearing_defect_freq_hz | No | Bearing characteristic defect frequency in Hz (BPFO, BPFI, BSF, or FTF) | |
| defect_type | No | Defect type label: bpfo, bpfi, bsf, or ftf | bpfo |
| harmonics | No | Number of sideband orders | |
| tolerance_hz | No | Frequency search tolerance in Hz |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |