Ukuthuthukiswa kobuchwepheshe be-rotary metrology kanye nesimiso sayo esiyisisekelo se-multihead weigher

Umbhali: Smartweigh– Isisindo Sezinhloko Eziningi

eyodwa. Isimo samanje sendlela yokuqinisekisa i-metrological yemishini yokuxuba ejikelezayo 1.1 Indlela yendabuko yokuqinisekisa i-metrological ejikelezayo isetshenziswa ekuqinisekisweni kwe-metrological kwezinto zokusetshenziswa ze-fiber ezifana nezinto zokwakha zokuhlobisa, okusanhlamvu, uwoyela, ukudla, ukumbiwa kwezimayini, njll., noma lapho kusetshenziswa izinongo ku-inthanethi. . Ezivamile kakhulu yilezi: izikali zebhande le-elekthronikhi, ama-flowmeter epuleti lokuhlanza, izikali ze-antimatter, kanye nezikali zokudla ezijikelezayo. Le ndlela yokuqinisekisa ukulinganisa inezici zayo, kodwa imikhawulo mikhulu kakhulu.

Ubuchwepheshe bokucubungula besikali sebhande le-elekthronikhi buqaliswa ngokuningiliziwe, futhi izinyathelo zimi kanje: Isikali sebhande le-elekthronikhi sihlanganisa isignali yedatha yomthwalo kanye nesilinganiso sokuguqulwa (isilinganiso sejubane lebhande lokudlulisa) isignali yedatha endaweni iyonke yebhizinisi (isigaba sokulinganisa) ukuthola inani lokugeleza eliphelele. Ama-Targets asebenzisekayo. Ukwethulwa okuningiliziwe kobuchwepheshe bokucubungula besikali sebhande le-elekthronikhi Qaphela: Inani lezinto zokusetshenziswa okufanele zikhishwe liyashintshwa ngokuya ngesilinganiso sejubane sebhande lokudlulisa lokudonsa nokudonsa. Usayizi, umthwalo osebhandeni lokushayela uzinzile. Uma kuqhathaniswa nezinye izindlela zokudla, le ndlela inomphumela omuhle wangempela wokuqinisekiswa kwe-metrological kanye nokuhleleka.

Umdwebo wesimiso wesekethe yokuqinisekisa ukulinganisa kwesilinganiso sebhande le-elekthronikhi Qaphela: Imisebenzi yokondla kanye neyokulinganisa iqedwa emabhandeni amabili okudlulisa ngokulandelana. 1.2 Indlela yokuqinisekisa ukulinganisa okujikelezayo isetshenziswa emshinini wokuxuba oqhubekayo. imishini, umxube ojikelezayo wekhonkrithi, umxube ojikelezayo we-bitumen. Ngokuphathelene nokunemba kokuqinisekiswa kwe-metrological, kulesi sigaba, lolu hlobo lwemishini alukwazi ukuhlanganiswa ngezikhathi ezithile. Ngakho-ke, indlela yokuxuba okujikelezayo ayithandwa amakhasimende amaningi, okungenye yezizathu.

Imiboniso yesayensi ingabonisa ukuthi izinqubo zokuxuba nokucubungula ezinqunywa yilezi zindlela ezimbili zokuqinisekisa ukulinganisa zinezindawo zazo ezisebenzisekayo, futhi ukusetshenziswa kokuxuba okujikelezayo akufanele kubekwe engcupheni ngenxa yemikhawulo yesikhashana yezobuchwepheshe. Kulesi sigaba, ezweni lakithi, imishini yokuxuba ejikelezayo yonke ilinganiswa ngendlela yevolumu noma isikali sebhande le-elekthronikhi/isikali esijikelezayo. Ngawo-1970, ubuchwepheshe bokucubungula ukuxuba obuqhubekayo bethulwa buvela eYurophu ukuthuthukisa nokuklama. Kuze kube manje, kube kanje, futhi akukho ntuthuko kusukela ekuqaleni kuze kube sekupheleni. Eqinisweni, lezi zindlela ezimbili zokuqinisekisa ukulinganisa zingafinyelela ukunemba okuphezulu ekusetshenzisweni kwaseYurophu. Isibonelo, isikali sokuhlanganisa ibhande lokudlulisa sikaSchenck eFrance sinokunemba okunamandla kwezinongo okungu-2%.

Kodwa ezweni lakithi, akukuhle, ngoba kuncike ekuvinjelweni kokukhiqizwa kwezimboni okuyisisekelo njengokukhiqiza imishini nemishini kanye nezinto zokusetshenziswa ezweni lakithi. Kulesi sigaba, ukulinganisa nokunemba kokuqinisekisa kwezikali zebhande likagesi ezisetshenziswa ensimini yomgwaqo ezweni lakithi ngokuvamile kungama-5% kuphela, okungafani nokuqinisekiswa kokulinganisa umthamo, futhi ukuthembeka kwesikhathi eside kubuthakathaka. 2. Ukuguqulwa Kokulinganisa Okuqhubekayo——Isisindo samakhanda amaningi (i-English Loss-in-weight) sesikali sokunciphisa umuthi wesignali ehlukile (isimo esingenasisindo) saqala ukusetshenziswa kuyo yonke inqubo yokukhiqizwa kwezimboni ngawo-1990 ukuze kuqinisekiswe okuqhubekayo kwe-metrological.

Isisindo se-Multihead kancane kancane sithatha indawo yezikali zebhande le-elekthronikhi, izikali ezijikelezayo, ngisho nezikali eziqongelelekayo. Njengendlela entsha nethuthukisiwe yokuqinisekisa ukulinganisa, isetshenziswa kancane kancane ezintweni zokusetshenziswa eziningi. 2.1 Umqondo oyisisekelo: Thatha ibhakede lokukala kanye nenhlangano yokudla njengomzimba wonke wesikali, sampula njalo isignali yedatha yesisindo se-net yomzimba wesikali ngokuya ngephaneli yethuluzi noma isofthiwe yekhompyutha ephezulu, bese ulinganisa isilinganiso sokushintsha kwesisindo se-net ngesikhathi seyunithi njengesivinini esisheshayo. Ukugeleza okuphelele, bese kuxazululwa ngobuchwepheshe ngokuya ngobuchwepheshe bokuhlunga behadiwe nesofthiwe ehlukahlukene, kungasetshenziswa njengenhloso yokuphatha. "ukugeleza okuphelele". Ukutholwa kwalokhu kugeleza okuphelele kubaluleke kakhulu futhi kuyisisekelo sokulinganisa okunembile nokuqinisekiswa kwesisindo se-multihead.

Indlela yakudala ichazwe ngokuningiliziwe esithombeni: indlela yokuqinisekisa isikali samakhanda amaningi, bese i-FC ibuyisela emuva i-algorithm yokwenza ngcono ngokuya ngombono we-PID, yenza ukubalwa kokusebenza kokugeleza okuphelele eduze kwethagethi iyonke, bese ikhipha isignali yedatha yokulungisa ukuze isebenze i-starter ethambile kanye nezinye iziphakeli ezidlidlizayo. 2.2 Ukusetshenziswa okuqondile kwesikali samakhanda amaningi esikali: Kusukela esimisweni esiyisisekelo, kungabonakala ukuthi ngeke ilimale izinguquko zemishini yemishini yomzimba wesikali kanye nesakhiwo sokudla. Ilinganisa kuphela iphutha lesisindo esiphelele (isisindo somehluko), futhi Uma kuqhathaniswa nendlela yokuqinisekisa i-metrological enamandla yendabuko, izinzuzo zayo zisobala. Lapho ithagethi yokulawula ingukugeleza okuphelele (t/h, kg/min), futhi izinto zokusetshenziswa zinokuthuthwa okuhle, futhi ukunemba kokuqinisekisa i-metrological kuyadingeka ukuthi kube phezulu, indlela yesimo esingenasisindo ingasetshenziswa njengohlelo oluhle kakhulu lokuqinisekisa i-metrological.

2.2.2 Inqubo yokukhiqiza isikali samakhanda amaningi: Inqubo yokukhiqiza isikali samakhanda amaningi 2.2.3 Izinto okumele zinakwe ohlelweni lokuklama lwesikali samakhanda amaningi, izici ezithinta ukunemba: isikali samakhanda amaningi sinezici zesikali sedatha esingaguquki kanye nesikali esiguquguqukayo. Ngakho-ke, ohlelweni lokuklama isofthiwe yesistimu, ibeka: 1. Ububanzi bezinga lokuthutha elifanele ngokuvamile bungu-60% kuya ku-70% womthamo wokuthutha olinganisiwe emsebenzini othile. Uma kusetshenziswa ushintsho lwesivinini sokuxhumana kanye nokushintshana, kungcono ukuphendula imvamisa yokucindezeleka engu-35-40Hz. Lokhu kuqinisekisa ukulungiswa okubanzi.

Futhi kungenxa yokwethenjelwa okungekuhle kwesofthiwe yesistimu lapho izinga lokuthutha liphansi kakhulu. 2. Ububanzi bokulinganisa benzwa buphakathi nendawo. Ngamanye amazwi, inzwa isebenzisa futhi u-60% ~ 70% wobubanzi bayo bokulinganisa ngokwefomula. Isignali yedatha inobubanzi bokuguqulwa, okuzuzisa kakhulu ukuthuthukisa ukunemba. 3. Uhlelo lokuklama uhlelo lwemishini kufanele luqinisekise ukuthi izinto zokusetshenziswa zijikeleza kahle, futhi luqinisekise nokuthi isikhathi sokudla sifushane, nokuthi ukudla akufanele kube kaningi kakhulu. Ngokuvamile, kunqunywe ukuthi ukudla kufanele kwenziwe njalo ngemizuzu emi-5-10.

Idivayisi yokudlulisa yezikhungo ezisekelayo kufanele iqinisekise ukusebenza okuzinzile kanye nesimo esihle somugqa. 2.2.4 Ithuba lokusebenzisa: Ngokuthuthuka okusheshayo kohlelo lokulawula idivayisi kagesi, isisindo samakhanda amaningi sisekelwe ekukhetheni ubuchwepheshe obusha, futhi ukunemba kokuqinisekiswa kwe-metrological kukhushulwe kusuka ku-0.3% kuya ku-0.5%. Isihluthulelo salobu buchwepheshe obusha ukusetshenziswa kwezinzwa zesisindo sokubonisa sedijithali.

2.2.4.1 Ukusetshenziswa kwenzwa yokulinganisa isibonisi sedijithali: Ukuze kuhlanganiswe kangcono nesidingo sokulinganisa okuguquguqukayo nokunembile, kubaluleke kakhulu ukusetshenziswa njengenzwa yokhiye wesofthiwe yesistimu emishinini yokulinganisa. Ikakhulukazi endaweni lapho uhlelo kumele lube nobuhlakani khona, idatha esheshayo noma engaqondile yenzwa ibalulekile. Ngalesi sikhathi, ukungaqiniseki kokulinganisa okunembile kanye nesilinganiso sokulinganisa esinembile ngokuvamile kuyizinto ezimbili ezihlukile, futhi kunzima ukuzicabangela zombili. Isimo esithile sikhethwa njengesivumelwano. Embonini yokulinganisa, izinzwa eziningi zendabuko zedijithali ze-analog zikhiqizwa futhi zisetshenziswe ezweni lakithi kulesi sigaba, futhi umphumela wesignali ye-pulse mncane.

Uma sithatha inzwa yesisindo enokukhipha okuphelele kanye nesimiso esiyisisekelo samandla okucindezela i-resistor njengesibonelo, ukuphuma okukhulu okuvamile kungu-30-40mV. Ngakho-ke, isignali yedatha ithintwa kalula yimvamisa yomsakazo, futhi ibanga lokudlulisa lekhebula nalo lifushane, ngokuvamile lingaphakathi kwamamitha ayishumi. Emishinini yokukala isitsha (isikali sokulinganisa isikali se-silo), imishini yokukala yesikhulumi sesevisi noma ibhuloho lesikali (isikali seloli kagesi noma isikali sesitimela) kusetshenziswa izinzwa eziningana ezilandelanayo, isofthiwe yesistimu yedatha ingasetshenziswa ukuqedela "ukuzilinganisa".

Lokhu kungenxa yesofthiwe yesistimu yezinzwa zedijithali eneziteshi eziningi, ayikho inkinga yokumelana okufana. Ikhasimende lifaka ikheli eliningiliziwe, isisindo kanye nokuzwela kwenzwa ngayinye, futhi isikali singasebenza ngokuzenzakalela ngokuphelele. "Amakhona amane" noma "umphetho" Kulinganisiwe, asikho isidingo sokulungisa njalo uhlamvu ngokuphindaphindiwe. Ekulingiseni kwesistimu, ngemva kokuba izinzwa eziningana zixhunywe ndawonye, ​​izici zenzwa ngayinye azisakwazi ukuhlukaniswa kwezinye. Lapho kulinganiswa, isisindo esijwayelekile kufanele sikhululwe kunzwa ngayinye bese kusetshenziswa isihlukanisi se-voltage ku-terminal. Yenza ukulungiswa.

Ngenxa yokuthi kukhona ukuhlolwa kwe-t okubhangqiwe lapho kulungiswa, kuphinda kaningana. Kusofthiwe yesistimu yedatha, inzwa ngayinye ivunyelwe ukuhlolwa ngayinye. Ngakho-ke, isikhathi sokulungisa izindleko eziphelele zesofthiwe yesistimu ngenzwa yedijithali siyingxenye eyodwa kwezine kuphela yokulingisa kwesistimu.

Kungenziwa kusetshenziswa isofthiwe yesistimu yedatha "ezixilongayo", okungukuthi, ukugeleza kohlelo lokuxilonga kuhlola njalo ukuthi isignali yedatha yenzwa ngayinye iphelile, ukuthi umkhiqizo udlule kakhulu, njll. Uma kunenkinga, umlayezo noma i-alamu iboniswa ngokuzenzakalelayo kudeshibhodi noma iphaneli yokulawula iphaneli, futhi amakhasimende angasebenzisa okhiye kuphaneli yokulawula ukuthola inzwa ngayinye, ukuhlonza imbangela yenkinga ngamunye futhi enze ukuxazulula izinkinga okuvamile. Lolu hlobo lokuhlonza ngokwahlulela kanye nomsebenzi ojwayelekile wokuhlanza amaphutha kusobala ukuthi luyinzuzo ebalulekile kumakhasimende, futhi kunzima ukukhohlwa nokunciphisa izindleko ekulingiseni isofthiwe yesistimu yenzwa ye-analog.

Embonini yokulinganisa, isinqumo se-displacement coefficient SPWM yesofthiwe evamile yesistimu yenzwa yokulingisa singama-bits ayi-16, futhi kukhona izibalo ezitholakalayo ezingama-50,000; kuyilapho isinqumo sesikrini senzwa ngayinye kusofthiwe yesistimu yedatha singama-bits angama-20, kukhona izibalo ezitholakalayo eziyi-1,000,000. Ngakho-ke, isofthiwe yesistimu enezinzwa zedijithali ezine ingakhiqiza isinqumo sesikrini esingama-4,000,000. Izinzuzo zalolu hlobo lwephikseli ephezulu zifaneleka kakhulu ezindaweni lapho isisindo sohlaka lwesikali sikhulu kakhulu futhi isisindo sento esikaliwe sincane.

Isibonelo: emishinini yokulinganisa izinongo, ngezinye izikhathi uhlobo oluthile lwezinto zokusetshenziswa eresiphi eyimfihlo lubalelwa engxenyeni encane kuphela, kodwa izidingo zokunemba zisephezulu kakhulu. Lokhu kunzima futhi ukukufeza ekulingiseni kwesistimu yendabuko. 3. Ukusetshenziswa kwe-rotary mixer kanye nomthelela wamathemba emakethe Ngenxa yokuthi ukulinganisa nokuqinisekisa i-rotary mixer eShayina kuhlala ngendlela yendabuko, amathuba okusebenzisa ukumaketha nokukhuthazwa kwe-multihead weigher azoba banzi kakhulu. , Inqubo yokuxuba eqhubekayo ye-bitumen inoshintsho oluguquguqukayo, futhi ukulawulwa okunembile kokugeleza okuphelele kungakhiqiza ingxube efanelekile kakhulu.

Ngenxa yokuthi i-rotary mixer inesakhiwo esilula kanye nezindleko zokulungisa eziphansi, uma isilinganiso senhlanganisela yomkhiqizo sesilawulwa ngokuqinile, sizoshintsha isimo samanje sesabelo semakethe esiphansi se-rotary mixer. Ikakhulukazi, imishini nemishini ekhulayo yokukhiqiza edingekayo emikhakheni yobunjiniyela bemigwaqo kanye namandla kagesi anenani elihle, futhi isisindo se-multihead siwukuthuthukiswa okubalulekile kokuthuthukisa ukunemba kokuqinisekiswa kwe-metrological.

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