Surface Magnetic Flux Density Testing Service

Surface Magnetic Flux Density Testing Service



Principle of Surface Magnetic Flux Density Testing：

The Tesla meter probe is moved to a specified position via a multi-axis module, while the rotor under test is driven by a motor to perform uniform circular motion. The magnetic field on the rotor surface measured by the Tesla meter probe is digitally processed by the Tesla meter and transmitted to a computer.

A dedicated magnetic detection software on the computer maps the magnetic detection data to the rotation angle in a one-to-one manner, with a resolution of 36,000 points per 360°. This enables scanning of the full-circle magnetic distribution at the specified height of the rotor.

After completing the measurement at the current height, the Tesla meter probe is moved to the specified position of the next layer to repeat the measurement process until all layers are measured.

Subsequently, a surface magnetic distribution software processes the collected data and compares key parameters—including magnetic pole peak value, magnetic pole area, and magnetic pole angle—against pre-set upper and lower limits. Finally, a measurement report is generated, and a pass (OK) or fail (NG) signal is output based on the detection results.

The detection results are displayed as a 2D waveform, and a 1D Hall probe is used for the measurement.