Chii chinonzi encoder?
Munguva yekushanda kwemota, chaiyo-nguva yekutarisisa ma paramita akadai seazvino, kutenderera kumhanya, uye chinzvimbo chehukama cheinotenderera dhizaini inotenderera shaft inosarudza mamiriro eiyo.motamuviri nemidziyo iri kudhonzwa, uyezve, chaiyo-nguva kutonga kwemota uye mamiriro ekushandisa emidziyo, nekudaro kuona kusevha, kumhanyisa mutemo, uye mamwe akawanda chaiwo mabasa.
Pano, kushandiswa kwe encoder seyekumberi-yekupedzisira kuyerwa chinhu kwete chete kurerutsa iyo yekuyera sisitimu, asiwo chaiyo, yakavimbika uye ine simba.
Encoder inzwa inotenderera inoshandura chinzvimbo uye kuchinjika kwezvikamu zvinotenderera kuita nhevedzano yedhijitari pulse masiginecha, ayo anounganidzwa uye anogadziriswa neiyo control system kuti abudise akatevedzana emirairo kugadzirisa uye kushandura mamiriro ekushandisa emidziyo. Kana iyo encoder yakasanganiswa negiya bar kana screw screw, inogona zvakare kushandiswa kuyera huwandu hwechimiro chechinzvimbo uye kutamiswa kwemutsara unofamba zvikamu.
Basic classification ye encoder
Encoder ndeyemakanika uye yemagetsi padhuze musanganiswa weiyo chaiyo yekuyeresa zvishandiso, chiratidzo kana dhata rekukodha, shanduko, yekutaurirana, kuendesa uye kuchengetedza yechiratidzo data.
Iyo encoder ndeye chaiyo yekuyeresa mudziyo unosanganisa mechanic uye zvemagetsi zvikamu encode, kushandura, kutaurirana, kutumira uye kuchengeta masaini uye data. Zvinoenderana neakasiyana hunhu, encoder kupatsanurwa kunotevera: kodhi disc uye kodhi chiyero: mutsara kuchinjika mumagetsi masaini anonzi code scale encoder, angular displacement mune telecommunications yekodhi disc, - incremental encoder: kupa chinzvimbo, kona uye nhamba yemakumbo, nezvimwewo, kune nhamba yemapulses per turn kutsanangura chiyero chekuparadzanisa. -Absolute encoder: Ipa ruzivo rwakadai sechinzvimbo, kona uye nhamba yekuchinja mune angular increments, imwe neimwe angular increment inopihwa yakasarudzika kodhi.
-Hybrid absolute encoders: Hybrid absolute encoders inoburitsa maviri seti yeruzivo: imwe seti yeruzivo inoshandiswa kuona nzvimbo yemagineti pole, ine basa reruzivo rwakakwana; imwe seti yakangofanana neruzivo rwekubuda rwekuwedzera encoder.
Anowanzo shandiswa encoders yemota
Kuwedzera encoder
Yakananga kushandisa musimboti wekushandurwa kwemafotoelectric kuburitsa matatu maseti esquare wave pulses A, B uye Z. A, B maviri seti yemapulses chikamu musiyano we90o, anogona kuona zviri nyore kutungamira kwekutenderera; Z-chikamu chese kutenderera kupuruzira, inoshandiswa sereferensi nzvimbo yekumisikidza. Zvakanakira: nheyo yakapfava yekuvaka, avhareji yehupenyu hwemagetsi emakumi ezviuru zvemaawa kana kupfuura, simba rinopesana nekupindira, kuvimbika kwepamusoro, yakakodzera kutapurirana kure-kure. Zvakaipa: kusakwanisa kuburitsa iyo yakakwana chinzvimbo ruzivo rwe shaft kutenderera.
Absolute encoders
Yakananga kubuda kwedhijitari sensor, sensor denderedzwa kodhi disc pamwe neiyo radial kutungamira kweakawanda concentric kodhi chiteshi, imwe neimwe chiteshi nechiedza-chakajeka uye chiedza-chisingapindi chikamu chikamu pakati pekuumbwa kwenhamba yepedyo yekodhi chiteshi chiteshi zvikamu hukama huviri pakati pehuwandu hwekodhi chiteshi pane kodhi disc ndiyo nhamba yemabhinari manhamba pahuwandu hwekodhi kodhi chiteshi ndiyo nhamba yedhisiki yedivi redivi rekodhi kodhi, rimwe divi redivi rekodhi kodhi zvinoenderana nekodhi yega yega chiteshi pane chiedza-sensitive element; apo code disc iri mune imwe nzvimbo, chiedza-chinonzwisisa chinhu maererano nechiedza kana kusashandura chinoenderana chezinga chechiratidzo kuti chigadzire nhamba yebhinari. Kana iyo kodhi disc iri munzvimbo dzakasiyana, imwe neimwe photosensitive element inoshandura inoenderana nhanho chiratidzo zvichienderana nekuti yakavhenekerwa here kana kuti kwete kugadzira binary nhamba.
Iyi mhando ye encoder inoratidzwa nenyaya yekuti haidi counter uye yakagadziriswa kodhi yedhijitari inoenderana nenzvimbo inogona kuverengerwa pane chero chinzvimbo cheinotenderera shaft. Zviripachena, iyo yakawanda kodhi chiteshi, iyo inokwirisa resolution, kune encoder ine N-bit binary resolution, iyo kodhi disc inofanira kunge iine N barcode chiteshi. Parizvino, kune 16-bit absolute encoder zvigadzirwa.
Encoder kushanda musimboti
Nepakati nepakati ine shaft ye photoelectric code plate, ine mhete kuburikidza nemitsara yakasviba, kune photoelectric transmitter uye inogamuchira zvishandiso zvekuverenga, kuwana seti ina dze sine wave masaini akasanganiswa kuita A, B, C, D, imwe neimwe sine wave ine chikamu musiyano we90 madhigirii (inoenderana neinotenderera wave ye360 dhigirii inoiswa mukati, iyo yepamusoro-soro yeC, D, piritsi, C, D, 2000), inogona kukwidziridzwa kudzikamisa chiratidzo; uye imwe kutendeuka kwese kuburitsa Z-phase pulse pachinzvimbo chezero chinzvimbo Reference chinzvimbo.
SeA, B mbiri yechikamu musiyano we90 madhigirii, inogona kuenzaniswa nechikamu cheA kumberi kana B chikamu kumberi, kuitira kuti uone encoder yakanaka uye yekudzosera kumashure kutenderera, kuburikidza ne zero pulse, unogona kuwana encoder's zero referensi chinzvimbo.
Encoder disc zvinhu zvine girazi, simbi, plastiki, girazi disc yakaiswa mugirazi pane yakaonda kwazvo mutsara wakavezwa, kugadzikana kwayo kwekupisa kwakanaka, kwakakwira, simbi disc yakananga kupfuudza uye kusapfuura mutsara wakavezwa, kwete kutetepa, asi nekuda kwehumwe ukobvu hwesimbi, iyo chaiyo ishoma, uye kugadzikana kwayo kwekupisa kuchave kwakaipisisa kupfuura iyo yegirazi redhisiki yehurongwa, mutengo wepurasitiki wakaderera, iyo mag discitude ehupfumi, mutengo wepurasitiki wakaderera. kunyatsoita, kugadzikana kwekupisa, tarisiro yehupenyu yakaipisisa. Plastic discs ane hupfumi, asi kurongeka, kugadzikana kwekupisa, uye hupenyu hurefu hwakaipa.
Resolution - encoder yekupa kuti vangani kuburikidza kana mitsetse yakasviba pa 360 madhigirii ekutenderera inonzi resolution, inozivikanwawo sekugadziriswa kwe index, kana yakananga kunzi mangani mitsara, kazhinji 5 ~ 10,000 mitsetse per revolution index.
Position Measurement uye Feedback Control Principles
Encoder inogara pachinzvimbo chakakosha zvakanyanya mukusimudza, maturusi emuchina, kugadzirisa zvinhu, mota mhinduro masisitimu uye kuyerwa uye kutonga michina. Maencoder anoshandisa optical gratings uye infrared light sources kushandura optical signals kuita TTL (HTL) magetsi masaini kuburikidza neanogamuchira, ayo anooneka anoratidza kutenderera kona uye chinzvimbo chemota nekuongorora kuwanda kweiyo TTL nhanho uye huwandu hwemazinga akakwirira.
Sezvo kona uye nzvimbo inogona kuyerwa nemazvo, zvinokwanisika kuumba yakavharwa-loop control system ine encoder uye inverter kuita kuti kutonga kunyanye kujeka, ndosaka kusimudza, maturusi emuchina, nezvimwe zvinogona kushandiswa nenzira kwayo.
Summary
Muchidimbu, tinonzwisisa kuti iyo encoder yakakamurwa kuva akawedzera uye akazara marudzi maviri zvichienderana nechimiro, iwowo mamwe masaini, senge masaini masaini, mune magetsi masaini anogona kuongororwa uye kudzorwa. Uye isu tinogara mukusimudzwa kwakajairwa, maturusi emuchina anongobva pane chaiyo mutemo wemota, kuburikidza nemhinduro yemagetsi chiratidzo yakavharwa-loop control, encoder ine frequency converter inyaya yechokwadi kuti uwane kudzora chaiko.
Nguva yekutumira: Feb-23-2024