- Crack Detection
Poor quality magnets can have small cracks that can break during assembly or that can lead to product failure over time. Re-work or worst case scrapping of the assembled product can be very costly. Being able to screen out small cracks in magnets can improve product yield and reduce cost. Both visible and just-below surface cracks can be identified using the Magcam systems. MagFit can filter out the signature of cracks from the background field distribution and automatically detect small cracks. By comparing the measured data with theoretical magnet models, MagFit extracts a lot of extra information from the data.
The Magcam technology can be used to detect cracks quickly and accurately in permanent magnets, magnet assemblies and rotors. Magnet manufacturers are using our solutions to screen out cracked magnets in automated production lines.
Minimum detectable crack length is ~ 0.5mm
Magnet quality issue:
- Small cracks that can cause premature product failure
- Bz field distribution
- Substract background field (using MagFit analysis)
- Image processing
- Threshold residual field
- Object recognition
- Detect cracks
The Minicube1D is a compact Bz magnetic field camera containing a patented sensor chip with an integrated two-dimensional array of 16384 microscopic Hall magnetic field sensors.
Magcam MiniTable Working Platform
The MiniTable is a working platform for measuring small magnets, to be combined with the MiniCube1D or MiniCube3D magnetic field camera.
Magcam Portal/Combi Scanner
The Magcam Portal Scanner is a high-speed 3-axis motorized mapper with an integrated MiniCube1D or MiniCube3D magnetic field camera for measuring large magnets and magnet assemblies.