Measurement at permanent DC motors of piston compressors

The operating characteristics { n = f (M), I = f (M), pmech = f (M),  = f (M)} of permanent DC-Motors in a power range within 150 W are measured. The DC-Motors drive piston compressors in cars. Because of the motor design, both directions of rotations are different. Additional the stability of operating points must be determined. not assigned KP: Partner aus der Industrie