Los ntawm lub photoelectric code disc nrog ib tug axis nyob rau hauv qhov chaw, muaj ib lub nplhaib rau, ib tug tsaus nti engraved kab ntawm nws, thiab ib tug photoelectric transmitting thiab txais ntaus ntawv nyeem, plaub pawg ntawm sine yoj teeb liab tau txais thiab ua ke rau hauv A, B, C. , D, txhua qhov sine yoj yog 90 degrees sib nrug theem sib txawv (360 degrees txheeb ze rau ib lub voj voog), cov cim C thiab D tau thim rov qab, superimposed ntawm A thiab B theem, thiab cov teeb liab ruaj khov tuaj yeem txhim kho;
Qhov zoo tib yam sine thiab cos encoder muaj ib khub ntawm orthogonal kev txhaum, cos 1Vp-p teeb liab, uas yog sib npaug rau AB quadrature teeb liab ntawm incremental encoder ntawm square yoj teeb liab, thiab yuav rov qab ntau lub teeb liab mus rau ib lub kiv puag ncig, xws li 2048, thiab lwm yam, thiab nqaim symmetrical daim duab peb sab yoj Index teeb liab, uas yog sib npaug rau Z teeb liab ntawm incremental encoder, thiab feem ntau tshwm nyob rau hauv ib lub voj voog; hom sine thiab Cos encoder yog qhov tseem ceeb ntawm incremental encoder. Ntxiv rau qhov hais saum toj no-hais orthogonal kev txhaum thiab cos teeb liab, lwm sine thiab Cos encoder kuj muaj ib tug sinusoidal C thiab D teeb liab ntawm 1Vp-p uas tsuas yog tshwm sim ib lub teeb liab voj voog nyob rau hauv ib tug rau-rau-ib lub voj voog. Lub high-magnification subdivision thev naus laus zis ntawm cos teeb liab tsis tuaj yeem tsuas yog ua kom lub sine thiab Cos encoder kom tau txais cov ncauj lus kom ntxaws nominal nrhiav kev daws teeb meem dua li lub voj voog ntawm lub teeb liab, xws li 2048 kab ntawm sine thiab Cos encoder tom qab 2048 subdivision, nws tuaj yeem ncav cuag. lub nominal kev daws teeb meem ntawm ntau tshaj 4 lab kab ib kiv puag ncig, tam sim no, ntau European thiab American servo manufacturers muab hom high-resolution servo system, thiab domestic manufacturers tseem tsis tshua muaj; Tom qab lub teeb liab D yog subdivided, nws tseem tuaj yeem muab cov ntaub ntawv tseem ceeb hauv ib lub kiv puag ncig, xws li 2048 qhov tsis txaus ntseeg ntawm ib lub kiv puag ncig, yog li sine thiab Cos encoder nrog C thiab D teeb liab tuaj yeem suav tias yog analog singleturn absolute encoder.
Qhov kom zoo dua ntawm sine thiab cosine servo lub cev muaj zog encoder yog tias servo tsav tuaj yeem tau txais kev txiav txim siab tsis muaj kev sib txuas lus siab, uas txo cov kev xav tau ntawm cov khoom siv, thiab tib lub sijhawm, vim yog lub teeb liab lub kaum sab xis, servo lub cev muaj zog tuaj yeem pib smoothly thiab pib lub zog loj.