Indlela yokukhetha isilinganisi seentloko ezininzi ngokufanelekileyo

Umbhali: Smartweigh–Multihead Weighter

Isixhobo sokulinganisa i-multihead sisixhobo sokuguqula amandla kumbane esinokuguqula amandla kwiimpawu ze-elektroniki, kwaye iyona nxalenye ephambili ye-multihead weigher. Zininzi iintlobo zezivamvo ezinokugqibezela utshintsho lwamandla ombane, ngokubanzi lubandakanya uhlobo lwamandla okumelana noxinzelelo, uhlobo lwamandla emagnethi kunye ne-capacitive sensor. Ukubaluleka kohlobo lwamandla ombane yi-electronic analytical balance, i-sensor ye-capacitor yinxalenye ye-multihead weigher, kunye ne-resistance strain force type weight machine idla ngokusetyenziswa kwiimveliso ezininzi zomatshini wobunzima.

I-resistance strain ye-multihead weigher ilula kwisakhiwo, iphezulu ngokuchaneka, kwaye inoluhlu olubanzi lokusebenziseka, kwaye ingasetyenziswa kwindawo yendalo ehluphekileyo. Ke ngoko, i-resistance strain ye-multihead weigher ifumaneka kwi-multihead weigher. I-resistance strain ye-multihead weigher ikakhulu yenziwe nge-polyurethane elastomer, igeyiji yokumelana noxinzelelo kunye nombane wembuyekezo.

I-polyurethane elastomer yinxalenye egxininisiweyo ye-multihead weigher, eyenziwe ngentsimbi yekhabhoni ephezulu kunye neeprofayili ezikumgangatho ophezulu we-aluminium alloy. Igeyiji yokumelana noxinzelelo yenziwe ngefoyile yentsimbi efakwe kuhlobo lwedatha yegridi, kwaye iigeyiji ezine zokuxhathisa zincanyathiselwe kwi-polyurethane elastomer ngendlela yesakhiwo sebhulorho. Kwimeko yokungabi namandla, i-resistors ezi-4 zesiphaluka zebhulorho zinexabiso elifanayo, isiphaluka sebhulorho sikwimeko elungeleleneyo, kwaye imveliso i-zero.

Xa i-polyurethane elastomer ikhubazeke ngamandla, igeyiji yoxinzelelo lokumelana nayo ikhubazekile. Ngexesha lenkqubo yonke ye-polyurethane elastomer iphantsi kokunyanzeliswa kunye nokugoba, iigeji ezimbini zokumelana nazo zoluliwe, ucingo lwentsimbi luzoluliwe, kwaye ixabiso lokumelana liyanda, kwaye ezinye ezimbini ziphantsi kokunyanzeliswa, kwaye ixabiso lokumelana liyancipha. Ngale ndlela, isekethe yebhulorho elungelelanisiweyo yasekuqaleni ayiphumeli, kwaye kukho umahluko wombane osebenzayo kumacala omabini esekethe yebhulorho. Umahluko wamandla ombane osebenzayo unxulumene nobukhulu bamandla kwi-polyurethane elastomer. Jonga umahluko wamandla ombane osebenzayo ukuze ufumane ubungakanani bamandla oluvo, amandla ombane osebenzayo Emva kokuba isignali yedatha ikhangelwe kwaye ibalwe yipaneli yesixhobo, ukuze kusetyenziswe ngcono useto lwezakhelo ezahlukeneyo zeweigher, i-multihead weigher yenziwe ngeendlela ezahlukeneyo. iifom zesakhiwo, kwaye igama le-sensor lidla ngokubizwa ngokuhambelana noyilo lwayo.

Umzekelo, isivamvo setsheyini yokupakisha (ibhalansi yemoto ye-elektroniki ebalulekileyo), uhlobo lwe-cantilever beam (ibhalansi yomhlaba, isikali se-warehouse, ibhalansi yemoto ye-elektroniki), uhlobo lwekholomu (ibhalansi yemoto ye-elektroniki, isikali se-warehouse), uhlobo lwemoto (isikali), uhlobo lwe-s (warehouse). isikali) njl njl. Ukuba inzwa ikhethwe ngokufanelekileyo, inceda ekuphuculeni iimpawu zesilinganiselo se-multihead.

Kukho iinkcukacha ezininzi kunye neemodeli zokumelana ne-multihead weighers, ukusuka kumakhulu aliqela eegram ukuya kwiitoni ezingamakhulu aliqela. Xa ukhetha umlinganiselo wokulinganisa i-multihead weigher, kufuneka icaciswe ngokobukhulu be-multihead weigher esetyenziswa ngokuqhelekileyo. Umgaqo wesithupha umi ngolu hlobo lulandelayo: umthwalo opheleleyo we-sensor (ubuninzi bomthwalo ovumelekileyo we-sensor nganye x inani le-sensor) = 1/2 ~ 2/3 yobunzima obukhulu be-multihead weigher.

Inqanaba lokuchaneka kwe-multihead weigher lahlulwe ngokwamanqanaba amane: a, b, c, kunye no-d. Amabanga ahlukeneyo anemida eyahlukeneyo yeempazamo. Abenzi boluvo boDidi A baxelwe ubukhulu becala.

Inani emva kwebakala limele ixabiso lokuqinisekisa i-metrological, inkulu idatha, ingcono umgangatho wenzwa. Umzekelo, i-C2 ithetha ibakala C, i-2000 ye-metrological verification values ​​​​C5 ithetha i-C grade, i-5000 ye-metrological verification values. Ngokucacileyo iC5 iphezulu kuneC2.

Amabakala aqhelekileyo e-sensor yi-C3 kunye ne-C5, kwaye ezi zimbini ze-sensors zingasetyenziselwa ukwenza i-multihead weighters kunye nebakala lokuchaneka kwe-III. Impazamo ye-multihead weigher ibangelwa ikakhulu yimpazamo yenkqubo ecacileyo, impazamo ye-lag, impazamo yokuphinda-phinda, ukuphumla koxinzelelo, impazamo eyongezelelweyo yobushushu beqondo elingu-0 kunye nempazamo eyongezelelekileyo yobushushu obulinganisiweyo. Izinzwa zedijithali eziye zavela kwiminyaka yakutshanje zibeka i-A / D yokuguqula umbane wesiphaluka kunye ne-CPU yombane wesiphaluka kwi-sensor. Imveliso ye-sensor ayisiyiyo i-analog ye-voltage data signal signal, kodwa i-net weight analog signal isonjululwe ngesisombululo, esinezi zinto zilandelayo: i-equation yomgca, kwaye inzwa nganye inokulinganiswa ngokuzimeleyo, kwaye ithuba lokulungelelanisa impazamo yeembombo ezine ngexesha elinye liphezulu kakhulu.

Intloko enkulu kwi-multihead weighers usebenzisa i-digital kunye ne-analog sensors yi-conerction ye-four adjustment error, edla ngokufuna ii-calibrations ezininzi ukucacisa, ixesha ngalinye ukuhambisa ubunzima obuqhelekileyo obuqhelekileyo, obuchitha ixesha kunye nomsebenzi onzima. 2. Ngenxa yokuba iphaneli yesixhobo inokubona iimpawu zedatha yazo zonke izinzwa, iingxaki zazo zonke izinzwa zingabonwa kwipaneli yesixhobo, esilungele ukulungiswa. 3. I-sensor yedijithali idlulisela umqondiso we-analog ngokusebenzisa i-interface ye-485, kwaye ukuhanjiswa kumgama omde ngaphandle kokuchaphazeleka.

Lahla iingxaki ezinzima kwaye zichaphazeleka zokuhanjiswa komqondiso we-pulse. 4. Iimpazamo ezahlukeneyo ze-sensor zinokuhlengahlengiswa ngokwe-microcontroller ngaphakathi kwe-digital sensor, ukwenzela ukuba ulwazi lwedatha ye-sensor ye-output luchaneke ngakumbi. I-multihead weigher ibizwa ngokuba yinkqubo ye-nervous central ye-multihead weigher, kwaye iimpawu zayo zichaza ubukhulu becala ukuchaneka kunye nokuthembeka kwe-multihead weigher.

Xa uyila i-multihead weigher, umbuzo wendlela yokusebenzisa abenzi boluvo uhlala udibana. I-multihead weigher ngokwenene sisixhobo esiguqula isignali yedatha esemgangathweni kwimveliso yesignali ye-elektroniki enokulinganiswa ngokuchanekileyo. Into yokuqala ekufuneka uyiqwalasele xa usebenzisa inzwa yindawo ethile yeofisi apho inzwa ikhona.

Oku kubaluleke kakhulu ekusetyenzisweni okufanelekileyo kweenzwa, kwaye kuhambelana nokuba inzwa inokusebenza ngokufanelekileyo kunye nolunye ukhuseleko kunye nobomi benkonzo, kunye nokuthembeka kunye nokhuseleko lwabo bonke oomatshini bobunzima. Umonakalo obangelwa yimeko yendalo kwi-sensor inemiba ilandelayo: (1) Ubushushu obuphezulu bendalo bubangela ukuba inzwa inyibilikise into yokugquma, i-welding spot, kunye notshintsho lwesakhiwo kuxinzelelo lwe-thermal ye-polyurethane elastomer. Izinzwa ezisebenza kwindawo yobushushu obuphezulu bendalo zihlala zikhetha izinzwa zokumelana nobushushu, kwaye kufuneka zongeze ukufakwa kwe-thermal, ukupholisa kwamanzi, ukupholisa umoya kunye nezinye izixhobo.

(2) Iingozi zomsi kunye nokufuma kwiimpazamo ze-short-circuit of sensors. Kwimeko yendalo apha, kufuneka kusetyenziswe inzwa engangeni moya kakhulu. Iinzwa ezahlukeneyo zineendlela zokutywina ezahlukeneyo, kwaye ukusebenza kokutywinwa kwahluke kakhulu.

Ukutywinwa ngokubanzi kubandakanya ukuzaliswa kwe-sealant kunye nezixhobo zoomatshini zokugquma iphepha lerabha, ukuwelda kombane (umatshini we-arc welding, njl.njl. i-electron beam welding) yokutywinwa kokutywinwa kunye nokuzaliswa kwe-nitrogen yokuvala ukupakishwa kwe-vacuum. Ukususela kwisiphumo sangempela sokutywinwa, ukutywinwa kwe-welding yombane kuyona nto ibhetele, kwaye idosi yokuzaliswa kunye nokutywinwa imbi. Kuba inzwa esebenza kwindawo ecocekileyo neyomileyo yendalo kwigumbi, unokukhetha inzwa ngokutywinwa kwe-adhesive. Kuba isivamvo esisebenza kwindawo yendalo kunye nokufuma okuphezulu kunye nomsi, kufuneka ukhethe i-pulse shock absorber heat seal okanye i-Pulse shock absorber welding seal, i-vacuum yokupakisha i-nitrogen egcwele inzwa.

3 isigqumathelo sepleyiti yentsimbi, enokunganyangeki kakuhle komhlwa kunye nokusebenza kakuhle kokutywinwa. isivamvo. (4) Ubungozi bommandla wemagnethi kwisiphumo sophawu lwedatha yesiphithiphithi. Kule meko, ipropathi ekhuselayo ye-sensor yesisombululo ijongwa ngokungqongqo ukubona ukuba inokhuseleko olubalaseleyo lwe-electromagnetic.

5 Ke ngoko, abenzi boluvo abasebenza kwindawo enokutsha, enokutsha, kunye noqhushumbo lwendalo lucacisa ngokucacileyo iimpawu zohlobo lobungqina boqhushumbo: izinzwa zobungqina bokuqhuma kufuneka zisetyenziswe kwindawo ezinokutsha, ezinokutsha kunye neziqhumayo. Ukutywinwa kokutywinwa kolu hlobo lwenzwa akufanele kuqwalaselwe kuphela ukuqina, kodwa kwakhona kuqwalaselwe ngokupheleleyo amandla anyanzeliswayo ohlobo lokuqhuma kunye nobungqina bomswakama, obungenamanzi kunye nokuqhuma kwentambo yentambo.

Okwesibini, ukukhethwa kwenani elipheleleyo labenzi boluvo kunye noluhlu lokulinganisa: ukukhethwa kwenani elipheleleyo leenzwa kuxhomekeke kwinjongo ephambili ye-multihead weigher, inqanaba leengongoma ezixhasayo zomzimba wesikali (inani lamanqaku axhasayo kufuneka zisekelwe kwindawo yombindi womxhuzulane kwisikali somzimba wejiyometri edibanayo kunye nebenchmark yendawo ethile yeziko lomxhuzulane) . Ngokuqhelekileyo, ezinye ii-fulcrum zesikali zisebenzisa ezinye izinzwa, kodwa izikali ezizodwa ezifana nezikali ze-electronic hook zikhetha kuphela inzwa enye, kwaye ezinye izikali zokudibanisa ubunjineli be-electromechanical kufuneka zisebenzise ngokucacileyo inani labenzi boluvo ngokwemeko ethile. Ukukhethwa koluhlu lokulinganisa lwenzwa lunokuvavanywa ngokwezinto ezifana nobukhulu bomlinganiselo, inani leenzwa, ubunzima bomlinganiselo ngokwawo, kunye nobunzima besondo obunokwenzeka kunye nomthwalo.

Ngokuqhelekileyo, ukusondela koluhlu lokulinganisa lwenzwa kumthwalo wenzwa nganye, ukuphakama kokuchaneka komlinganiselo. Nangona kunjalo, kwizicelo ezithile, ngaphezu kokubizwa ngokuba zizinto, kukwakho ubunzima besikali ngokwaso, ubunzima betare, ubunzima bevili kunye nomothuko wokungcangcazela. Ngoko ke, xa usebenzisa uluhlu lokulinganisa inzwa, izinto ezininzi kufuneka ziqwalaselwe ukuqinisekisa ukhuseleko kunye nobude obude benzwa.

Indlela yokubala yokulinganisa uluhlu lwenzwa luye lwacaciswa emva kovavanyo oluninzi emva kokuqwalasela izinto ezahlukahlukeneyo ezibeka ingozi kumzimba wesikali. Ifomula ibalwa ngolu hlobo lulandelayo: C=K-0K-1K-2K-3(Wmax+W)/N. C- Uluhlu olulinganisiweyo lwesivamvo somntu ngamnye W- Ubunzima bomlinganiselo ngokwawo Wmax- Ibizwa ngokuba lelona xabiso liphezulu lobunzima bobunzima bento N- Inani lilonke leefulcrum ezikhethwe sisikali K-0- I-inshurensi yorhwebo index, ngokubanzi 1.2 ~ 1.3 K-1- of the intermediary Shock index K-2-scale gravity center point offset index K-3-air pressure index.

Ngokomzekelo, kwisikali somgangatho we-elektroniki we-30t, ubunzima obukhulu bungama-30t, ubunzima bomlinganiselo ngokwawo ngu-1.9t, ii-sensors ezi-4 zikhethiwe, kwaye ngokwemeko ethile ngelo xesha, isalathisi se-inshurensi yorhwebo K-0 = 1.25 , isalathisi sempembelelo K-1=1.18, kunye nombindi womxhuzulane zikhethiwe. Isalathiso sokutenxa kwindawo K-2-=1.03, isalathisi soxinzelelo lomoya K-3=1.02 Isisombululo: Ngokwendlela yokubala yoluhlu lomlinganiselo wenzwa: c=K-0K-1K-2K-3(Wmax+W)/N. c=1.25×1.18×1.03×1.02×(30+1.9)/4=12.36t. Ngoko ke, uluhlu lokulinganisa lwe-sensor yi-15t (umthamo wokulayisha we-sensor ngokuqhelekileyo kuphela i-10T, 15T, 20t, 25t, 30t, 40t, 50t, njl., ngaphandle kokuba yinto ekhethekileyo yokwenza ngokwezifiso).

Ngokwamava omsebenzi, umsebenzi womatshini wobunzima uphakathi komlinganiselo we-30% ~ 70%, kodwa umatshini wobunzima onempembelelo enkulu kuyo yonke inkqubo yesicelo, efana nebhalansi yengoma eguqukayo, ibhalansi yemoto ye-elektroniki eguqukayo, engenastainless. isikali seplate yensimbi, njl., Xa usebenzisa inzwa, ngokubanzi ukwandisa uluhlu lwayo lokulinganisa, ukuze inzwa isebenze ngaphakathi kwe-20% ukuya kwi-30% yoluhlu lokulinganisa. Kwakhona, imimandla yesicelo yeendidi zoluvo kufuneka ithathelwe ingqalelo. Isitshixo ekukhethweni kwefom ye-sensor luhlobo lobunzima kunye nokusekwa kwendawo yangaphakathi, ukuqinisekisa ukulungelelanisa okufanelekileyo, ubunzima bunokwethenjelwa, ngakolunye uhlangothi, iingcebiso zomenzi kufuneka ziqwalaselwe. Abavelisi ngokubanzi bafuna intsimi yesicelo se-sensor ngokokunyamezela kwe-sensor, iiparamitha zokusebenza, indlela yofakelo, ifom yesakhiwo, i-polyurethane elastomer imathiriyeli kunye nezinye iimpawu Abenzi boluvo be-Beam bafanelekile ukuqokelela intsimbi kunye nokukhulula izinzwa zekhonkco ezifana nezikali zezinto eziphathekayo, izikali zebhanti ze-elektroniki kunye nokuhlola. izikali.

Ekugqibeleni, umgangatho wokuchaneka kwenzwa kufuneka ukhethwe. Inqanaba lokuchaneka kwenzwa libandakanya ukungahambi kakuhle kwenzwa, ukuphumla koxinzelelo, ukulungiswa kokuphumla koxinzelelo, i-lag, ukuphindaphinda, ukuvakalelwa kunye nezinye izibonakaliso zokusebenza. Xa usebenzisa inzwa, kungekhona nje imigaqo echanekileyo yokutyunjwa kombane, kodwa kunye neendleko zayo kufuneka ziqwalaselwe.

Ukukhethwa kwamanqanaba oluvo kufuneka kuthathelwe ingqalelo ezi khrayitheriya zimbini zilandelayo. Isalathisi sokulinganisa sibonisa isiphumo sobunzima bolwazi emva kokuba isignali yedatha yemveliso ye-multihead weigher iba nkulu kwaye ukuguqulwa kwe-A / D kusonjululwe. Ke ngoko, isignali yedatha yemveliso ye-multihead weigher kufuneka ibe nkulu kunobungakanani bemeko yegalelo elichazwe yipaneli yesixhobo. Uvakalelo lwemveliso ye-multihead weigher iziswe kwifomula ehambelanayo phakathi kwenzwa kunye nepaneli yesixhobo, kwaye isiphumo sokubala kufuneka sibe sikhulu kunovakalelo lwegalelo oluchazwe yipaneli yesixhobo.

Ifomyula ehambelanayo ye-multihead weigher kunye nepaneli yesixhobo: uvakalelo oluphumayo lwemitha yobunzima * amandla ombane ombane wenkuthazo * ubungakanani besikali, iqondo le-myopia yemitha yobunzima * inani labenzi boluvo * uluhlu lokulinganisa yoluvo. Ngokomzekelo, umatshini wokupakisha wobungakanani onobunzima be-25kg kunye nesikali esine-myopia enkulu ye-1000 yokulinganisa imilinganiselo khetha i-3 L-BE-25 i-sensor kunye noluhlu lokulinganisa lwe-25kg kunye novakalelo lwe-2.0±I-0.008mV / V, khetha ipaneli yesixhobo se-AD4325 kwizikali kunye nebhulorho ye-arch yombane yoxinzelelo lwe-12V. Ibuza ukuba ngaba umenzi woluvo okhethiweyo uzakudityaniswa nedeshibhodi.

Isisombululo: Uvakalelo lwegalelo lephaneli yesixhobo se-AD4325 yi-0.6μV/d, ngoko ke ngokwendlela yokulinganisa phakathi kweweigher ye-multihead kunye nesixhobo solawulo, isiginali yedatha ethile yegalelo lesixhobo solawulo yi-2.×12×25/1000×3×25=8μV/d>0.6μV/d. Ngoko ke, i-weigher ye-multihead ekhethiweyo inokuthathela ingqalelo ukulawulwa kwe-input sensitivity yepaneli yesixhobo, esinokudibaniswa nokukhethwa kwepaneli yesixhobo. 2. Qwalasela imimiselo malunga nokuchaneka kwezihloko ze-elektroniki.

Ukubonakaliswa kwe-elektroniki kuqulunqwe ikakhulu ngamacandelo amathathu: isikali, inzwa kunye nesixhobo sombane. Xa ukhetha ukuchaneka kwe-multihead weigher, ukuchaneka kwe-multihead weigher kuphezulu kancinci kunexabiso elibaliweyo lethiyori esisiseko. Ithiyori esisiseko idla ngokulinganiselwe ngenxa yezizathu ezicacileyo, njengezikali. Amandla oxinzelelo lwesikali ahlupheke kancinci, iimpawu zepaneli yesixhobo zilungile kakhulu, indawo yeofisi yesikali igqithise kunye nezinye izinto.

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