Home Applications and Solutions Motor Test Systems Motor Torque Test System
Motor Torque Test System
The Motor Torque Test System is used for carrying out torque measurements on Unipolar and Bipolar Stepper Motors and AC Synchronous Motors using an electronically controlled load, optical encoder and reaction torque sensor arrangement. It makes use of a reliable and robust, production-class, embedded hardware for accurately measuring various parameters by performing a number of tests. A precision machined aluminum mechanical fixture is used for securing the motor to have minimal axial misalignments with the measuring hardware. All measurements are made by the system according to the parameters selected by the user and the test results are sent to a PC for evaluation.


  • No load current
  • Full load current
  • Pull-in Torque
  • Pull-out torque
  • Pull-in Rate
  • Pull-out Rate

Controlled Parameters

For all Motors -
  • Nominal Load
  • Max. Applied Load
  • Max. Applied PPS
  • Rate of Increment of Applied Load
  • Rate of Increment of PPS
For only Unipolar and Bipolar Stepper Motors
  • Operating Voltage (0-60VDC, 3A)
  • PPS (5 – 5000 PPS)
  • Direction of Rotation (CW/CCW)
  • Operating Mode (Full Step/Half Step/Wave Drive)
For only AC Synchronous Motors
  • Operating Voltage (5-250VAC)
  • Operating Frequency (50/60 Hz)
  • Direction of Rotation (CW/CCW)
  • Internal Capacitor Value (10nF – 100uF)


  • Interfaced with a Touch Screen PC to program test parameters and send commands to perform tests, carry out measurements, collect results, and view graphs for detailed analysis
  • All test parameters and conditions for a motor type are stored in a preprogrammed database
  • In-built power supplies with drivers to drive any kind of Unipolar and Bipolar Stepper Motor and AC Synchronous Motor
  • A precision machined aluminum mechanical fixture for securing the motor to have minimal axial misalignments with the measuring hardware
  • Provision for connecting external capacitor and resistor, if required
  • Status LEDs to indicate system status
  • Constructed in a modular design with plug-in connectors for easy maintenance


  • Motor Torque Test System includes a Windows based software to perform tests and generate reports which can be stored in excel format
  • The software has facility to check and validate individual parameters of a test item at any instance of time
  • The results of the parameter being checked are monitored online in software until user stops the test
  • Special Engineering Mode, which is useful for debugging and new motor development