Development test stands from imc are characterized by high flexibility in electric motor trials. A comprehensive variety of motor types can be tested and a complete range of tests carried out. The mechanical configuration consists of a test bed with a load machine and a torque measuring shaft. The load machine and torque sensor shaft are mounted on a linear guide and precisely aligned axially by means of laser. It can be moved towards the test object on ball bearings, as a complete unit. Especially time-saving: no need to realign the load machine assembly when changing the torque sensor.

Configuration with an active drive machine (depending on the testing task: PMSM synchronous motor or asynchronous machine) as load unit, increases the possibilities for testing:

• Determining electromotive force (EMF), also known as back EMF
• Cogging torque measurement for creeping speed of 0.5 … 10 RPM
• Towing the test object and compensate to a 0 Nm torque range
• Determining the torque ripple at defined RPMs
• Dynamic loading of the test object and effect of disturbance quantities on test object

The configuration of a passive brake (eddy current brake, magnetic particle brake, etc.) is also possible which is useful for special applications, such as acoustic measurements or very high RPMs.