Active shims are commonly used in (high-field) NMR spectroscopy to improve the magnetic field homogeneity. However, shimming EPR magnets is not very common, albeit its benefits.
The Bridge12 Shim Power Supply (SPS) is a compact bi-polar power supply. The system is configured to have a total of 8 independent channels, each capable to supply a maximum current of +/- 1.5 A at a resolution of 16 bits.
Controlling the Bridge12 SPS is accomplished through a serial interface (serial over USB). Optimized shim values can be saved in the memory of the micro processor. A Python Package is available for download to control the Bridge12 SPS.