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 if your magnet
- 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
Test criteria
- local and global pole peak detection
- Flux density in pole center
- Pole width
- Pole integrals
- Harmonic analysis
- Pole skewing
- Total flux
- Pole comparison
Specifications
Technical data | |
Measurement ranges | ± 500µVs, ± 5mVs, ± 50mVs, ± 500mVs |
Range selection | Automatic or manual |
Accuracy | ± 1µVs after self calibration |
Magentic Values | Magnetic Flux: Vs, Wb, Maxw |
Measurement | DC, AC uo to 2500Hz |
Calibration | Internal voltage and time reference, self-calibration |
Drift | Standby: 0 µVs/min after dedrift |
Input resistance | 10kOhm ± 0.1% |
Input terminals | 4-polige LEMO-plug |
Display | LCD 240*65 pixel, 127mm*34mm |
Interfaces | |
Analogue Output | ±10V, Continuous output of displayed readings |
Serial Interface | RS 232C, SCPI Code, 9600 Baud, 115kBaud via USB |
SPS | 8 inputs/outputs 24VDC, short circuit proof, potential free |
Software function | |
| Automatic drift compensation |
