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Ferrite Toroid Core: Copper-Cadmium Ferrite, 200-Hour Grind, 1000 °C in Oxygen (Snoek 1948, Ex. I)
A low-loss ferrite ring core for radio coils: copper and cadmium ferrite made, ground for about 200 hours, pressed into a ring and heated 6 hours at 1000 °C in oxygen. Snoek's core had an initial permeability of 100 and a loss factor of about 0.01 at 1000 kHz. Cadmium oxide is poisonous.
Source: J. L. Snoek, US 2,452,529 (Philips, 1948), Example I. Picture: our diagram.
Juu
3 days
Maudhui hatari
Blueprint hii ina taratibu za hatari. Ingia na uwashe maudhui ya hatari katika mipangilio ya akaunti yako ili kuona maagizo ya hatua kwa hatua.
IngiaMchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.