I-Smart Weigh izinikele ekuncedeni abathengi bandise imveliso ngexabiso elithotyiweyo.
Ulwimi
I-Smart Weigh izinikele ekuncedeni abathengi bandise imveliso ngexabiso elithotyiweyo.
Umbhali: Smartweigh–Multihead Weighter
Umboniso wedijithali we-weigher ye-multihead eyenzelwe kweli phepha sisixhobo sokulawula ukulinganisa ngokusekwe kwinzwa yoxinzelelo lwamandla kunye noyilo lwe-chip microcomputer enye njengesitshixo sokulawula. Uluhlu lokufumanisa luyi-0-10kg, kunye nokuchaneka komlinganiselo±I-2g, isikrini sokubonisa i-crystal ye-liquid sibonisa ulwazi lwedatha yokulinganisa echanekileyo, ukongeza, ulwazi lwedatha yokulinganisa echanekileyo inokuthunyelwa kwikhompyutheni yekhompyutheni ukuze ibonise ulwazi ngokwe-port ye-serial. Isoftware yenkqubo ineempawu zokuchaneka okuphezulu, iimpawu ezizinzileyo kunye nokusebenza okulula. Umzobo wesakhelo seskimu soyilo lwe-multihead weigher siboniswe kuMzobo 1 ngezantsi: 1. Umgaqo-siseko wesekethe yoqwalaselo lwe-hardware 1.1. Isixhobo sokulinganisa i-sensor resistor I-strain force yokulinganisa i-sensor iqulunqwe ngamalungu amaninzi abalulekileyo afana ne-resistance gauges, i-polyurethane elastomers kunye nokuhlolwa kweesekethe zobonelelo lwamandla. bumba.
I-polyurethane elastomer ibangela ukuguqulwa kwe-elastic phantsi kwamandla angaphandle, ukuze igeji yokumelana ne-resistance gauge encanyathiselwe kumphezulu wayo nayo ibangela ukuguquka. Emva kokuba igeyiji yokumelana noxinzelelo ikhubazekile, ixabiso layo lokumelana liya kutshintsha (ukwandisa okanye ukunciphisa), emva koko ngomlinganiselo ochanekileyo. amandla angaphandle abe ngumqondiso wombane. Jonga isiphaluka sonikezelo lwamandla njengoko kubonisiwe kuMfanekiso 2, kwaye utshintshe ukuchasana kwegeji yokumelana noxinzelelo kwimveliso yombane osebenzayo. Ngenxa yokuba ibhulorho ye-Wheatstone ineenzuzo ezininzi, ezinjengokukwazi ukucinezela umonakalo wokutshintsha kobushushu, ukucinezela impembelelo yamandla asecaleni, kunye nokujongana nengxaki yembuyekezo yesixhobo sokulinganisa ubunzima, ibhulorho yeWheatstone ifumene inzuzo enkulu inzwa yokulinganisa. ukusetyenziswa jikelele.
Uluvo lokulinganisa ngokubanzi lunemigca emine yokuphuma, kwaye ukuchasana kwemveliso ngokuqhelekileyo yi-350Ω, 480Ω, 700Ω, 1000Ω. Isiphelo segalelo ngokubanzi sithwala imbuyekezo ethile yeqondo lokushisa kunye novakalelo, kwaye i-input end resistor iya kuba phezulu kunokuphela kwemveliso. 20 ~ 100Ω, ngoko ke Sebenzisa i-digital multimeter ukulinganisa ixabiso lokumelana nokuchonga iitheminali zemveliso. 1.2. Umqondiso wedatha yemveliso yesekethe yokukhulisa ubunzima-uhlobo loluvo lobunzima (mV okanye nokuba ngu-μV ubunzima obunzima), kwaye kuhlala kukho ingxolo eninzi kunye nayo. Kwisiginali yedatha enjalo, inyathelo lokuqala kwisisombululo sesekethe yonikezelo lwamandla ngokubanzi kukukhetha iamplifier yesixhobo sokukhulisa isiginali encinci yedatha.
Isekethe yobonelelo lwamandla esixhobo sokukhulisa umbane inamandla okuchasa imowudi eqhelekileyo kunesekhethi yeamplifier yomqondiso olula. Eyona njongo ibaluleke kakhulu yokunyusa ayiloxabiso lokuzuza, kodwa kukuphucula ukuzinza kwamaza ombane. Kulo cwangciso loyilo, i-amplifier ye-instrumentation ithatha isakhiwo se-OP07 i-amplifiers ezintathu zokusebenza.
3 njengoko kubonisiwe kuMfanekiso. Xa i-R1=R2, R3=R4, Rf=R5, ixabiso lenzuzo yesekethe yonikezelo lwamandla ngu: G=(1+2R1/RG1) (Rf/R3). Inokubonwa kwi-formula yokubala ukuba uhlengahlengiso lwexabiso lokufumana isiphaluka sonikezelo lwamandla lunokugqitywa ngokutshintsha ixabiso lokumelana ne-RG1.
1. 3. I-A/D yokuguqula umbane wesekethe I-A/D converter ikhetha i-electronic scale-specific integrated icHX711, eyi-24-bit A/D converter edibeneyo ic eyenzelwe ngokukodwa izikali ze-elektroniki ezichanekileyo. Xa kuthelekiswa nezinye ii-IC ezidibeneyo zohlobo olufanayo, i-IC edibeneyo idibanisa ii-peripheral circuits eziyimfuneko kwezinye ii-ICs ezidibeneyo zohlobo olufanayo, kubandakanywa ukunikezelwa kwamandla okulawulwayo okulungelelaniswayo, i-oscillator yewashi kwi-chip, kunye nokunye okunjalo. Faka iswitshi ukuze ukhethe itshaneli yokhuseleko A okanye itshaneli yokhuseleko B ngokuthanda, kunye neamplifier yesilawuli senkqubo yesandi esiphantsi sidityaniswe phakathi kwezi zimbini.
Ixabiso lenzuzo yomlawuli wenkqubo yejelo lokhuseleko A yi-128 okanye i-64, kunye nenani elipheleleyo letyala elihambelanayo elipheleleyo lolwahlulo lophawu lokufaka uphawu lwedatha yophawu lwexabiso le-amplitude ngokulandelelana.±20m.
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