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Outline
The two methods for measuring magnetic properties of non-oriented electrical steel include the Epstein frame method and uniwafer method. In the paper, it is introduced their equipment, sampling method, specimen size, amount and detection method as well as mianly analyzed the testing data results measured with them. The results showed that the range value and standard deviation of iron loss and magnetic polarization intensity measured with the Epstein frame method were all smaller and more accurate than those measured with uniwafer method, however, the sample size is large and requirements of specimen size are strict with the Epstein frame method, while the sample size is small and deviation is within permissible range with the uniwafer method, so the uniwafer method could replace the Epstein frame method to measure the magnetic properties of non-oriented electrical steel.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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