Spectral diagnostics on rotating equipment. Bearing wear, imbalance, misalignment, and looseness identified from signature analysis on motors, pumps, compressors, fans, and gearboxes — captured against ISO 10816 zone limits and twenty years of reference data.
Fast Fourier Transform applied to time-domain signals from accelerometer and velocity sensors. Spectrum is indexed against known fault frequencies — bearing geometries, running speeds, gear-mesh, and electromagnetic — to localize the failure mode.
Raw time-domain trace inspected for impacts, transients, and amplitude modulation that the spectrum can smooth over. Used to confirm bearing impacts and severity in advanced wear cases.
High-frequency carrier signal demodulated to surface low-energy bearing defects that don't yet show in the standard spectrum. Droz's early-warning method on critical rotating assets.
Methodology runs under the broader Predictive Maintenance engagement →
Severity thresholds for rotating-machinery vibration assessed against ISO 10816 zones A–D. Decisions to alert, schedule, or shut down anchor to the standard.
Droz vibration analysts hold CMVA certification; programs follow CMVA category protocols for data collection, analysis, and reporting.
Field engineers certified across Vibration Institute Categories I–IV — the global benchmark for vibration-analyst competency, route planning, and root-cause analysis.
Focus — condition monitoring, alignment, balancing.
Each asset family maps to an industry program — see industries served.
Refineries · Oil & Gas → Power Generation → Petrochemicals → Mining & Metals →
Routes are walked on a cadence calibrated to asset criticality — typically monthly on production-critical rotating equipment, quarterly on balance-of-plant. Each route produces a per-asset report with spectrum, time-waveform, envelope trace, severity grade, and recommended action. Severity exceedances are dispatched same-day into your CMMS and chat channels; the periodic report is rolled up into the corporate reliability dashboard.
Industrial control and condition-monitoring instrumentation from Rockwell, paired with the FactoryTalk data backbone where the plant already runs Rockwell.
IRD field analyzers and dynamic balancing equipment for in-situ correction of imbalance findings — no return trip to the shop.
Prüftechnik VibXpert and CMS condition-monitoring hardware for permanent installations and route-based collectors.