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Spin’s laboratory is equipped with a test bench for electric motors capable of detecting the main electro-mechanical characteristics. Spin test bench is modular and flexible: it’s possible to check different fixing methods, motor size and geometries.

In the area of engine characterization, we are able to perform the following tests:

  • Measurement of Back EMF (vacuum induced voltage)
  • Inductance measurements
  • DC and AC resistor measurements
  • Measuring torque and mechanical power
  • Realization of efficiency maps
  • Thermal characterization (S1, S2, S3)
  • Vibroacoustic analysis
Test bench for electric motors

We are able to test and characterize electric motors that meet the following prerequisites
Powerfrom 50 W to 100 kW
Power supplyfrom 12 V DC to 800 V DC
Speedfrom Low to High speed
*Our technicians can supply flanges and adaptor joints if required

In addition to the possibility of characterizing electric motors, we are able to drive electric motors with power electronics that comply with the following values:

  • Voltage range 12 – 800 V DC
  • Max current 200 Arms

Any specific requests will be evaluated separately with the customer.

Types of electric motors tested in Spin

  • PM brushless (SPM, IPM)
  • Asynchronous motors (IM)
  • Brushless
  • Synchronous wound motors (WRSM)
  • Axial flux motors
  • Switched reluctance motors (SRM)
  • Linear motors and actuators

The electric motor testing service includes

  • The possibility of witnessing the testing of electric motors in the laboratory
  • The possibility of remotely witnessing electric motor tests
  • Reporting of collected data

Vibroacoustic analysis on electric motors

Low noise is required in every industrial application. The end user’s comfort is as critical as the failure prevention. Vibrations produce mechanical as well as noise effect and may generate stress on parts. Stress is related with fatigue and may lead to premature failure of the device. Fatigue failure is a matter of number of cycles: even if the stress level is far lower than the maximum tensile stress of the component, failure may finally occur.

Available vibroacoustic test
Impact hammer modal testingUsed to determine resonant frequencies
Vibration response on the motor structureDisplacement measurement
Velocity measurement
Acceleration measurement
FFT analysis
Noise emissionSound power level measurement
Sound pressure level measurement
Noise spectrum analysis
Test correlation with CAE modelsUsed to adjust the parameters identified during the design stage

Vibroacoustic analysis on electric motors
Vibroacoustic analysis on electric motors
Vibroacoustic analysis on electric motors

Electric motors tested on test bench

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