Test benches – imx Solutions GmbH

The development test benches from imx are known for their high flexibility in testing electric motors and components. A wide variety of motor types can be tested and a variety of tests can be realized. The mechanical setup consists of a test bed with load machine and torque measuring shaft. The load machine and measuring shaft are mounted on a linear guide and precisely aligned axially using a laser. As a unit, they can be moved linearly. Particularly time-saving: When changing the torque sensor, no realignment of the load train is necessary.

The setup with an active drive machine (as PMSM synchronous motor or asynchronous machine, depending on the test task) as load unit, extends the range of tests:

• Measurement of the regenerative force (EMF) or also called Back EMF
• Cogging torque measurement at low speed with 0.5 … 10 rpm
• Dragging the DUT and controlling in 0 Nm torque range
• Determination of torque ripple at defined speeds
• Dynamic load of the test specimen
• Effect of interferences on the DUT
• Components and electronics tests according to LV-123, LV-124, LV-147 and LV-148

The setup with a passive brake (induction brake, magnetic particle brake, or similar) is also possible and useful for special applications, such as acoustic measurements or very high speeds.