Ihe ndọta servo moto na-eme ka servo motors mee ka njikwa ahụ ziri ezi ọsọ na ọnọdụ ziri ezi, ma nwee ike ịtụgharị mgbama voltaji n'ime torque na ọsọ iji kwọọ ihe njikwa ahụ. A na-achịkwa ọsọ rotor nke moto servo site na mgbama ntinye ma nwee ike ime ngwa ngwa.
Ebe ọ bụ na ngalaba Indramat nke Rexroth bidoro MAC na-adịgide adịgide magnet AC servo moto na sistemụ ịnya ụgbọ ala Hannover ahia na 1978, nke a na-egosi na ọgbọ ọhụrụ a nke teknụzụ AC servo abanyela na ọkwa bara uru. Ka ọ na-erule etiti na mbubreyo 1980, ụlọ ọrụ ọ bụla nwere usoro ngwaahịa zuru oke. Ahịa servo niile na-atụgharị na sistemụ AC. Ọtụtụ n'ime sistemụ servo eletriki na-arụ ọrụ dị elu na-eji magnet synchronous AC servo moto na-adịgide adịgide, onye ọkwọ ụgbọ ala na-ejikwa sistemụ servo ọnọdụ dijitalụ zuru oke yana ndokwa ngwa ngwa. E nwere ndị na-emepụta ihe dị ka Siemens,Kolmorgen, Panasonic,Yaskawa, wdg.
N'ihi ọrụ ziri ezi nke moto servo, ọ nwere nnukwu ihe achọrọ maka ịrụ ọrụ ziri ezi na arụmọrụ dị elu, nke dabere na ogo Neodymium magnets maka moto servo. N'ihi nnukwu akụrụngwa magnetik dị elu, Neodymium magnet na-eme ka moto servo kwe omume na ịdị arọ dị ala na nha dị nta ma e jiri ya tụnyere ihe ndọta ọdịnala, dị ka Ferrite, Alnico ma ọ bụ SmCo magnet.
Maka magnetik servo moto, ugbu a Horizon Magnetics na-emepụta usoro nke akara ule Neodymium dị elu, dị ka H, SH, UH, EH na AH nwere njirimara atọ ndị a:
1.High intrinsic coercivity Hcj: elu na> 35kOe (> 2785 kA / m) nke na-abawanye magnet demagnetizing nguzogide na mgbe ahụ servo moto na-arụ ọrụ kwụsie ike.
2.Low reversible okpomọkụ coefficients: ala ka α (Br) <-0.1%/ºC na β (Hcj) <-0.5%/ºC nke na-eme ka magnetik okpomọkụ kwụsie ike na-eme ka servo Motors na-arụ ọrụ na elu kwụsie ike.
3.Low arọ ọnwụ: ala ka 2 ~ 5mg / cm2 na HAST ule ọnọdụ: 130ºC, 95% RH, 2.7 ATM, 20 ụbọchị nke na-eme ka magnetik corrosion iguzogide ịgbatị oge ndụ nke servo Motors.
N'ihi ahụmịhe bara ụba anyị na ịnye ndị na-emepụta moto servo nwere magnet, Horizon Magnetics ghọtara na servo moto magnet chọrọ nnwale zuru oke iji hụ na ịdị mma ya siri ike, dị ka.demagnetization akụkụna elu okpomọkụ ịhụ na-arụ ọrụ kwụsie ike arụmọrụ, PCT & SST ịmụta àgwà nke mkpuchi n'ígwé, HAST ịchọta arọ ọnwụ, kpo oku na elu okpomọkụ ịmụta ọnụego nke irreversible ọnwụ, magnetik flux deviation iji belata moto jitter, wdg.
