DMK
One instrument. Replaces your entire motor test bench.
DMK
Drive Measurement Kit
One instrument. Replaces your entire motor test bench.
Hover for specsThe DMK is a compact and powerful measurement solution designed for inverter-driven motors. It precisely measures phase currents and PWM voltages and synchronizes them with the rotor position, enabling real-time visualization and high-resolution data storage.
The motor voltages are measured using a unique demodulation technique that reconstructs the effective PWM voltages directly from the inverter signals without the need for analog filtering. This approach preserves the true time relationship between currents, voltages, and rotor position, allowing highly accurate analysis of the drive system.
Beyond electrical measurements, the DMK also computes the inverter output and motor state variables in the dq coordinate system. This makes it possible to directly observe the key FOC control variables during operation, providing deep insight into the dynamic behavior of the motor drive.
Thanks to its high time resolution and synchronized measurements, the DMK allows engineers to detect inverter and control issues even within sub-PWM time intervals, making it an exceptionally powerful tool for development, benchmarking, and endurance testing.
By combining current measurement, PWM voltage reconstruction, rotor position synchronization, and advanced drive analysis in a single device, the DMK effectively replaces oscilloscopes, current probes, data loggers, and PWM monitoring equipment, reducing cost, complexity, and engineering effort.
Where DMK fits
Power electronic testing
The unique PWM decoding for high-frequency, high-resolution signals beyond typical instrument capabilities. Its advanced voltage measurement decodes PWM in real time, revealing the exact inverter voltages as the motor experiences them. Without common filtering, any inverter malfunction is easily detected rather than masked.
Development engineers in motor control
As a compact, multifunctional measurement instrument that replaces multiple separate devices. They connect DMK to their motor/inverter system to gather analog signals and key motor-control variables for scope and visualize in real time with the DMK PC-Software. Access internal state variables of both the motor and the inverter directly. Record and store data for extended analysis.
Long-time tests
Measure and log all motor and inverter state variables over an extended period. Identify anomalies or performance degradation that might occur only after hours, days, or weeks of continuous operation. Automated data analysis on the extensive datasets provided by the DMK helps uncover hidden or statistically rare problems that are difficult for humans to detect.
Benchmarking and reverse engineering
Analyze third-party or competitor drive systems with minimal setup, tapping directly into motor and inverter signals. DMK gathers precise data for performance comparisons: efficiency, accuracy, control strategy, and provides clear data to optimize designs, inform purchases, and guide partnerships.
External connections
Your motor, live on screen.
The DMK gives you a real-time window into your motor's electrical behaviour: 3-phase voltages, currents, FFT analysis rendered as an oscilloscope, live, at up to 250 kHz sampling rate. Every sine wave, every transient, every ripple. You can see it all.
Contact us for more
Traditional motor monitoring is blind to reality.
Most motor monitoring systems give you after-the-fact data: averages, trends, and alerts that arrive too late. You miss the critical electrical events that precede failure.
Real-time electrical visibility.
The DMK transforms complex motor data into clear, readable output. See what's happening inside your motor as it happens.
High-speed data acquisition
Capture electrical signals at 250 kHz sampling rate with precision measurement hardware. Every voltage fluctuation, current spike, and harmonic distortion is recorded in real-time.
- 3-phase voltage monitoring ±0.1% accuracy
- Current measurement up to 1000A range
- FFT analysis real-time spectrum processing
DATA LOGGING
Continuous, timestamped acquisition across all channels. The DMK writes every sample directly to a structured local database: 8 channels simultaneously, at up to 250 kHz, with no gaps, no manual triggers, and no data loss. Every session is queryable, replayable, and exportable the moment recording stops.
- 8-channel simultaneous logging: U_V, V_W, W_U, Is1-3, Angle, Udc
- Microsecond-precision timestamps across the full session
- Navigate any time window: load, zoom, and replay any moment
AI-powered pattern recognition
Advanced algorithms analyze electrical signatures to predict failures before they occur. Machine learning models identify subtle patterns that indicate developing issues.
- Anomaly detection: statistical pattern analysis
- Predictive modeling: failure probability forecasting
- Continuous learning: improves with motor data
DATA MONITORING
Intelligent fault detection: your rules or ours. Point the Data Monitor at any logged session and run a detection pass. Choose from our built-in algorithms (Rate of Change, Absolute Threshold) or define your own logic entirely. The system scans the full dataset, indexes every event, and plots each fault with a ±10 ms context window across all three phases.
- Pre-built algorithms: Rate of Change and Absolute Threshold, ready to deploy
- Custom algorithm support: define your own detection conditions
- Fault library: every event indexed, selectable, and export-ready in one click
Add your own algorithm or ask us to add one.
DMK vs. traditional test bench
| Traditional setup | DMK |
|---|---|
| Oscilloscope + current probes + data logger + PWM monitor + cabling | One instrument, same functions |
| High equipment cost ($50k+ typical) | Single unit, lower total cost |
| Multiple devices, large bench space | Compact, portable |
| Complex setup and synchronisation | Plug-and-play, integrated sync |