The MSD – Mega Speed Dynamometer was developed for testing very high speed motors such as BLDC, dental turbine and surgical tools. The braking affect is based on an Eddy Current induced aluminum disc directly mounted on the MUT (Motor Under Test) shaft. Torque is measured frictionless by a Reaction Torque Sensor mounted under the test bench surface. Due to the thermal effect on the disc, the Mega Speed Dynamometer is not suitable for endurance testing, but can be utilized to generate a fast curve or perform point to point testing. An infrared sensor monitors the temperature of the disc and can stop the test in case of overheating. The disc can be designed and sized according to the motor parameters. The system is contactless therefore alignment is not critical. Due to this, the system has very low inertia and therefore no residual or drag torque thus having less influence on testing parameters. The speed limitation is based on the Motor Under Test and its ability to drive the disc. Systems reaching speeds of 320 000 rpm have already been manufactured.
M-Test LabVIEWTM based software controls the system and captures the test data. It allows the programing set up of a dedicated test profile. Every Mega Speed Dynamometer will be designed around motor characteristics and performances to match the best possible test results. Specific motor fixture may need to be designed to suit each motor form and dimension.
The Mega Speed Dynamometer (MSD Series) enhances Magtrol’s expertise in high-speed applications and ideally complements 1 WB 23 and 1 WB 27 Dynamometers enabling motor testing up to 100 000 rpm