The motor is accelerated from 0 to the no-load speed. The load used is the moment of inertia of the motor’s rotor + flywheel. From the acceleration period, the system gives the complete motor load performances, together with additional dynamic unique testing, such as ripple torque, cogging, friction, and back EMF. Since the entire measuring time is very short (Acceleration time), the motor has no time to warm up. In such a way, the motor characteristics are given at constant pre-defined temperature.
The method is very accurate (± 0.2%) test results are very well reproducible, regardless of the operator and independent of any brakes, especially of their additional mechanical losses. The method clearly shows the influence of the temperature on motor performance and efficiency.
The system includes a very user-friendly software, presenting the data in graphs and tables, and saving them for evaluation, comparison, quality assurance, etc.
The testing system includes a very user-friendly software:
DIFFERENCES BETWEEN INERTIAL DYNAMOMETER AND TRADITIONAL DYNAMOMETER:
|Inertial Dynamometer||Traditional Dynamometer|
|Very simple test procedure||more complex test procedure|
|Fast results (a few seconds)||Long test cycle time|
|Does not require any complicated mechanical coupling nor any adjustment||Requires additional complex and accurate coupling|
|Applicable for Quality Control, R&D, and End of Line||Applicable for Quality Control, R&D|
|No need for previous skills||Requires know-how and expertise|
|A simple and generic holding device, supplied with the system||Requires additional complex and heavy-duty holding device|