Menene encoder?
A lokacin aikin motar, saka idanu na ainihi na sigogi kamar halin yanzu, saurin juyi, da matsayi na dangi na kewaye na juzu'i mai jujjuyawa yana ƙayyade matsayinmotaJiki da kayan aikin da ake ja, da ƙari, sarrafa injin na gaske da yanayin aiki na kayan aiki, don haka fahimtar aiki, ƙa'idodin saurin gudu, da sauran takamaiman ayyuka.
Anan, aikace-aikacen encoder azaman ɓangaren ma'aunin gaba-ƙarshen ba kawai yana sauƙaƙa tsarin aunawa ba, har ma daidai, abin dogaro da ƙarfi.
Encoder shine firikwensin jujjuyawar da ke jujjuya matsayi da matsuguni na sassa masu juyawa zuwa jerin siginonin bugun jini na dijital, waɗanda aka tattara da sarrafa su ta tsarin sarrafawa don ba da jerin umarni don daidaitawa da canza yanayin aiki na kayan aiki. Idan an haɗa encoder ɗin tare da sandar kaya ko dunƙule dunƙule, ana iya amfani da ita don auna yawan matsayi na jiki da matsuguni na sassa masu motsi na madaidaiciya.
Rarraba asali na encoder
Encoder shine haɗin injina da lantarki kusa da na'urorin auna daidai, sigina ko bayanai don coding, juyawa, don sadarwa, watsawa da adana bayanan sigina.
Encoder ainihin na'urar aunawa ce wacce ke haɗa kayan aikin inji da na lantarki don ɓoyewa, juyawa, sadarwa, watsawa da adana sigina da bayanai. Dangane da halaye daban-daban, rarrabuwa na encoder shine kamar haka: lambar diski da sikelin lambar: ƙaura madaidaiciya zuwa siginar lantarki da ake kira sikelin sikelin lambar, ƙaurawar angular cikin sadarwa don diski na lambar, - incremental encoder: don samar da matsayi, kusurwa da adadin laps, da sauransu, zuwa adadin bugun jini a kowane juzu'i don ayyana ƙimar raba. - Cikakkun rikodin: Ba da bayanai kamar matsayi, kusurwa da adadin juyi a cikin haɓaka angular, kowane haɓaka na kusurwa yana ba da lambar musamman.
-Hybrid absolute encoders: Hybrid absolute encoders suna fitar da nau'ikan bayanai guda biyu: ana amfani da saitin bayanai ɗaya don gano matsayin sandunan maganadisu, tare da aikin cikakken bayani; ɗayan saitin daidai yake da bayanan fitarwa na masu ƙara ƙara.
Abubuwan da aka fi amfani da su donmotoci
Ƙaruwa mai ƙara
Kai tsaye ta amfani da ka'idar photoelectric hira zuwa fitarwa uku sets na square kalaman bugun jini A, B da Z. A, B biyu sets na bugun jini lokaci bambanci na 90o, iya sauƙi ƙayyade shugabanci na juyawa; Z-phase kowane jujjuya bugun jini, ana amfani da shi don sakawa wurin tunani. Abvantbuwan amfãni: ƙa'idar gini mai sauƙi, matsakaicin rayuwar injiniya na dubun dubatar sa'o'i ko fiye, ƙarfin hana tsangwama, babban aminci, dacewa da watsawa mai nisa. Hasara: rashin iya fitar da cikakken bayanin matsayi na jujjuyawar shaft.
Cikakken encoders
Fitowar dijital kai tsaye, firikwensin madauwari code disc tare da radial shugabanci na yawan tashoshi na concentric code, kowane tashar ta hanyar haske-m da haske-impermeable sassa tsakanin abun da ke ciki na adadin kusa code sassa sassa ne mai ninki biyu dangantaka tsakanin adadin code tashoshi a kan code Disc ne yawan binary lambobi a kan adadin code tashoshi ne da lambar daga gefen tushen da faifai, da lambar daga gefen tushen da faifai. daidai da kowane tashar lambar akwai wani abu mai haske; lokacin da faifan lambar ya kasance a cikin wani matsayi na daban, nau'in mai-hasken haske gwargwadon haske ko a'a ya canza siginar matakin daidai don samar da lambar binary. Lokacin da faifan lambar ya kasance a wurare daban-daban, kowane abu mai ɗaukar hoto yana canza siginar matakin daidai gwargwadon ko yana haskaka ko a'a don samar da lambar binary.
Irin wannan nau'in rikodin yana da alaƙa da gaskiyar cewa baya buƙatar ƙira kuma ƙayyadadden lambar dijital da ta dace da matsayi ana iya karantawa a kowane matsayi na madaidaicin jujjuyawar. Babu shakka, yawan tashar lambar, mafi girman ƙuduri, don mai rikodin tare da ƙudurin binary N-bit, faifan lambar dole ne ya kasance yana da tashar barcode N. A halin yanzu, akwai 16-bit cikakken encoder kayayyakin.
Ƙa'idar aiki ta Encoder
Ta hanyar cibiyar da ke da shinge na farantin lambar photoelectric, wanda ke da zobe ta cikin layin duhu, akwai masu watsawa na photoelectric da na'urori masu karɓa don karantawa, don samun nau'i hudu na siginar siginar siginar siginar da aka haɗa zuwa A, B, C, D, kowane nau'i na sine tare da bambancin lokaci na digiri 90 (dangane da igiyoyin kewayawa don siginar 360), super-A, Dimposed biyu a kan C, Dimposed. za a iya haɓaka don daidaita siginar; da ɗayan kowane juzu'i don fitar da bugun jini na lokaci-Z a madadin matsayin sifili Matsayin Magana.
Kamar yadda A, B biyu kashi bambance-bambancen 90 digiri, za a iya kwatanta da A lokaci a gaba ko B lokaci a gaba, domin gane encoder tabbatacce da kuma juyi juyi, ta hanyar sifili bugun jini, za ka iya samun encoder ta sifilin tunani matsayi.
Encoder Disc abu yana da gilashi, karfe, filastik, gilashin diski yana ajiyewa a cikin gilashin akan layi mai laushi na bakin ciki, kwanciyar hankali na thermal yana da kyau, babban madaidaici, diski na karfe kai tsaye don wucewa kuma ba ya wuce layin da aka zana, ba mai rauni ba, amma saboda wani kauri na karfe, madaidaicin yana da iyaka, kuma zafinta na zafi zai zama mafi muni fiye da na gilashin, kwanciyar hankali na filastik, daidaitaccen tsari na magni. thermal kwanciyar hankali, rai rai ya fi muni. Fayafai na filastik suna da tattalin arziki, amma daidaito, kwanciyar hankali na zafi, da tsawon rayuwa sun fi muni.
Resolution - encoder don samar da nawa ta hanyar ko duhu a kowane digiri 360 na juyawa ana kiransa ƙuduri, wanda kuma aka sani da ƙudurin maƙasudin, ko kuma ana kiran layin nawa kai tsaye, gabaɗaya layukan 5 ~ 10,000 a kowace ma'aunin juyin juya hali.
Ma'aunin Matsayi da Ka'idodin Sarrafa Bayani
Encoders sun mamaye matsayi mai mahimmanci a cikin ɗagawa, kayan aikin injin, sarrafa kayan aiki, tsarin ra'ayoyin mota da aunawa da kayan sarrafawa. Encoders suna amfani da grating na gani da hanyoyin hasken infrared don canza siginar gani zuwa siginar lantarki na TTL (HTL) ta hanyar mai karɓa, wanda a gani yana nuna kusurwar juyawa da matsayi na injin ta hanyar nazarin mitar matakin TTL da adadin manyan matakan.
Kamar yadda za'a iya auna kusurwa da matsayi daidai, yana yiwuwa a samar da tsarin kula da rufaffiyar madauki tare da encoder da inverter don sa iko ya fi dacewa, wanda shine dalilin da ya sa ana iya amfani da ɗagawa, kayan aikin inji, da dai sauransu daidai.
Takaitawa
A taƙaice, mun fahimci cewa an raba na'urar rikodin zuwa ƙari da cikakku iri biyu bisa ga tsari, su ma wasu sigina ne, kamar siginar gani, zuwa siginar lantarki waɗanda za a iya tantancewa da sarrafa su. Kuma muna rayuwa a cikin ɗaga gama gari, kayan aikin injin suna dogara ne kawai akan ƙayyadaddun ƙa'idar motar, ta hanyar amsawar siginar siginar rufaffiyar madauki, encoder tare da mai sauya mitar shima lamari ne na hakika don cimma daidaiton iko.
Lokacin aikawa: Fabrairu-23-2024