PM coercivity | 930,000 | A/m | |
PM remanence | 1.28 | T | |
PM length | 0.008 | M | |
PM sectional length | 0.314 | M | |
PM sectional height | 0.01 | M | |
Pole shoe's initial teeth width | 0.0002 | M | |
Pole shoe's initial groove width | 0.0008 | M | |
Initial gap | 0.0002 | M | |
Saturation magnetisation of magnetic liquid | 400 | G | |
Permeability of vacuum | 4 |
T·m/A | |
Relative magnetic permeability of pole shoes | 100 | ||
Relative magnetic permeability of ordinary sealant | 1 | ||
Relative magnetic permeability of magnetic sealant | 4 | ||
Remark | In theoretical calculation, 1/3 of groove width added with 1/2 of teeth width is taken as the upper limit of integral, and 1/2 of teeth width is taken as the lower limit. |