New Magnetic Measuring Scanner for rotors and stators

Fully automated ease with micrometrical accuracy

A magnetic measuring scanner, the new Magnetoscan is designed to measure the magnetic field generated by permanent magnet devices that exhibit axial or radial multipolar magnetization, as is is the case with rotors or stators.

APPLICATIONS

Rotors, stators, Flywheels, Magnetic sensors (automotive, ABS, etc.), Magnetic encoders

HOW IT WORKS

The Magnetoscan works by rotating a magnetic device and recording the magnetic field versus the angular displacement at a particular level and distance. The measurement is taken by a 3 axis Hall probe, which is connected to a gaussmeter. The Hall probe is positioned with micrometrical accuracy at every distance from the surface of the sample by a precise mechanical tool with 3 axes. The sample is fixed to the rotating base through a shaft holder chuck that allows clamping samples with a shaft dimension between 5 to 35 mm. Once the rotor is set on the support and the probe is positioned to the desired distance and height, the measurement is carried out in a fully automated mode. The sample performs a complete revolution (plus approximately 10°) in about 30 seconds, during which the field is measured and sent to the connected PC, which processes and displays the measured values. The measurement is fully automated and controlled by a dedicated software program that records more than 30,000 measurements per revolution, with a resolution accuracy of 0.011°. The software provides many forms of scanned data, including: visualization of diagram angle-induction, peak detection, angular shift, harmonic distortion, and FFT.

Magnetoscan

Measuring the magnetic field generated by permanent magnet devices

Magnetic scanner - touch screen & software

The software MS-04 manages and controls the measurement with Magnetoscan. The software program enables automatic data collection saved to a file. The operator only has to select the parameters prior to the measurement, the MS-04 does the rest. Setting different distances and axial levels of measure, the software automatically performs all the scansions, that are then elaborate by the software and conveniently presented ad 2D or 3D graphs.

Magnetic measuring scanner - detail

3D superficial magnetic field profile. Data elaboration • Curve comparison. Fourier Analysis through Fast Fourier Trasform (FFT) algorithm • Math elaboration to calculate parameters such as zero crossing, pole width, slopes, area, etc. • Poles out of specification are marked in red • Measure of skew angle