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FAQ PS-PERMAG 1. Which sorts of magnets can be analyzed by PS-PERMAG ? Analyses can be done on different classes of three dimensional permanent magnets. These sorts of magnets differ by their geometry and their specific sort of magnetization. The most classes can have different numbers of poles ranging between 2 to over 200 per pole area. Momentarily PS-PERMAG maintains the following basic classes of magnets:
2. Which magnetic materials can be treated ? Nearly all sorts of current permanent magnetic materials can be treated. I.e. all sorts of permanent magnetic Ferrites, sintered or bonded NdFeB, sintered or bonded SmCo, bonded SmFeN. Not treatable is Alnico due to its steep demagnetization curve, which does not fit to the model of rigid magnetization, which is the basis of PS-PERMAG. 3. Which sorts of results are put out by PS-PERMAG ? All three spatial components of the magnetic field produced by the magnet, the absolute value of the field as well as the angles with the axes of the respective coordinate system. The field components can be shown in cartesian as well as in cylindrical coordinates. Additionally the extreme values of the field as well their its integrals are computed by the software. By using PS-PERMAG also Fourier analyses for periodic and non periodic field configurations can be performed. The data can be watched graphically as a function of spatial location or as numerical listings. For systems which include soft magnetic plates also attracting forces on the permanent magnets can be computed. 4. On which locations does PS-PERMAG compute the magnetic results On user defined paths inside or outside the magnet. The shape of the path can be chosen as straight line or circular for all sorts of magnets. 5. By which accuracy are the fields computed ? The fields can be computed by a user defined numerical accuracy ranging from 10-8 T to 1T. The default value is 10-4T (=1G). 6. How do I give in a problem ? By simply typing the magnets dimensions, its pole number and its remanence into a dialog box. Further you have to type in a few data for the path on which the results should be given. For a circular path e.g. these are its radius and axial location. Then the computation of the field components and their secondary results can be started. The computational process itself generally needs a few seconds only. 7. Can the results be used with other software ? Yes. PS-PERMAG has an export function to store the computed field components in ASCII code. So they can be used e.g. in scientific data handlers or spreadsheet programs. 8. What are the differences of PS-PERMAG to other programs ? The main differences to other programs, which usually are on the basis of Finite Elements, are the fast and easy usability of PS-PERMAG as well as its very low price. 9. Who is the author of PS-PERMAG PS-PERMAG is written by the physicist Thomas Schliesch, Germany who has nearly two decades experience in the development and analysis of permanent magnets and magnetic systems. 10. How can I be sure that PS-PERMAG works accurately ? PS-PERMAG has been tested extensively in all treated sorts of magnets. Its results were both judged by comparison with practical measurements as well as with Finite Element analyses. In all cases we found good to excellent agreements only . |
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