M-Scan Rotory

Compact Quality Control in Lab and Production!

Measurement principle

The measurement device is using a Hall sensor perpendicular to the direction of the rotor magnetic field. Turning the rotor along the Hall sensor can be contemplated as an "unwinding" of the rotor flux density in a graph of the total radial component of the rotor flux density along the rotor circumference. Using a rotary encoder, the measured signal is independent of the rotary speed resulting in a spatially resolved direction of the rotor flux density. All poles can be examined separately.

Why choosing a Rotor-Scan?

  • Check the quality of your magnets
  • Detect errors during the assembly of the lamination stack
  • Detect influences caused by inhomogeneity of the laminated core
  • Check position of the lamination stack to the shaft
  • Detect the strew field magnetization

Software testing criteria

  • local and global pole peak detection
  • Flux density in pole center
  • Pole width
  • Pole integrals
  • Harmonic analysis
  • Pole skewing
  • Total flux
  • Pole comparison

Integration

Available as a version for integration into your production line.

M-Pulse supplies all the hardware components to be integrated and our analysis software.