Txij li thaum lub advent ntawm kem load cell siv cov nplaum kuj strain gauges nyob rau hauv thaum ntxov 1940s, tom qab ntau tshaj 60 xyoo ntawm kev txhim kho thiab kev loj hlob, cov qauv tsim, tsim txheej txheem, kev ua tau zoo qhia, stability, thiab kev ntseeg tau mus txog theem siab. Qib siab, nws tau siv dav hauv ntau yam khoom siv hluav taws xob hnyav thiab ntsuas ntsuas thiab tswj cov tshuab. Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis thiab kev txhim kho qib automation ntawm cov txheej txheem kev lag luam, tshwj xeeb tshaj yog kev tsim cov thev naus laus zis thiab cov ntaub ntawv thev naus laus zis, kev siv cov thev naus laus zis thev naus laus zis thiab cov tshuab digital hauv kev ntsuas ntsuas thiab tswj cov tshuab tau ua ntau thiab xav tau. Txhawm rau kom ua tiav cov khoom siv hluav taws xob digital thiab ntse ntse, lub ntsuas qhov ntsuas digital yog siv los ua txhaum ntawm cov kev txwv ntawm qhov ntsuas qhov ntsuas analog thiab lwm yam yuav tsum tau ua. Raws li peb txhua tus paub, cov tshuab ntsuas digital yuav tsum tau ntsuas lub cev hnyav thiab ntsuas ntsuas lub tshuab kom tso tawm hauv daim ntawv digital. Lub analog load cell tam sim no nyob rau hauv kev siv, vim hais tias ntawm lub kuj strain conversion hauv paus ntsiab lus, txiav txim siab hais tias txawm yuav ua li cas hom ntawm kev tiv thaiv strain gauge yog siv rau kev tsim, nws tsis tuaj yeem tsim cov teeb liab tawm nrog cov yam ntxwv ntawm nws tus kheej, thiab cov zis analog teeb liab me me, feem ntau, 20} 40mv; luv kis nrug deb; tsis zoo los tiv thaiv- muaj peev xwm cuam tshuam; complex hnyav zaub tswj cov cuab yeej; inconvenient installation thiab debugging thiab lwm yam congenital defects. Nws tsis tuaj yeem hloov mus rau cov kev xav tau digital thiab ntse ntawm cov cuab yeej ntsuas hluav taws xob. Yog li ntawd, tib neeg them nyiaj ntau dua rau qhov sib cuam tshuam ntawm cov khoom siv hluav taws xob analog hnyav thiab cov tshuab ntsuas digital thiab cov ntse ntse ntsuas lub cev. Qee tus nto moo txawv teb chaws hnyav load cell manufacturers tau ua ntau txoj haujlwm tshawb fawb txog qhov no thiab ua tiav cov thev naus laus zis. Raws li qhov tshwm sim, ntau yam khoom lag luam uas muaj kev ywj pheej muaj tswv yim muaj cai tau tsim.
Raws li thaum ntxov xyoo 1983, txhawm rau ua kom tau raws li qhov xav tau ntawm cov txheej txheem kev lag luam automation, American TOLEDO (tam sim no METTLER TOLEDO) lub tuam txhab tau qhia txog "digital" (DIGITAL) lub tswv yim thiab maj mam siv nws mus rau qhov hnyav. Kev cog lus rau kev tshawb fawb txog kev siv cov tshuab microprocessor thiab cov thev naus laus zis thev naus laus zis los ua ke nrog cov kab ke ib txwm muaj - hom load cell technology. Tom qab xyoo ntawm kev ua hauj lwm nyuaj, lub rocker - hom digital ntse load cell tau tsim. Lub tuam txhab US STS kuj tau qhia txog kev sib koom ua ke digital ntse uas hnyav load cell ntawm 1988 National Weighing Apparatus Exhibition. Ob leeg yog ua raws li cov hauv paus ntsiab lus ntawm analog load hlwb, siv cov cuab yeej hluav taws xob niaj hnub thiab khoos phis tawj software technology los tsim cov hom tshiab ntawm cov khoom thauj. Ntawd yog, ntau tshaj 10 yam xws li amplification, filtering, A/D conversion, microprocessor chip, and temperature{10}}sensitive components are added to the analog load cell. Kev siv cov nplai hloov dua siab tshiab, kev lim dej digital, digital zeroing, digital them nyiaj, thiab lwm yam thev naus laus zis thiab txheej txheem tsim khoom tiav. Cov txheej txheem tsim khoom, kuaj cov khoom, cov txheej txheem kuaj, thiab txhawb nqa cov cuab yeej ntsuas ntawm cov khoom siv hluav taws xob ntse yog qhov sib txawv ntawm cov qauv ntawm cov khoom siv analog. Yog li ntawd, lub digital txawj ntse hnyav load cell yog ib qhov system project ua ke tshawb fawb thiab tsim nrog cov cuab yeej ntsuas.
Lub digital ntse load cell muaj lub teeb liab tso zis loj. Lub teeb liab digital yog ib pawg ntawm siab thiab qis - theem teeb liab nrog cov qauv thiab cov kev sib xyaw ua ke, feem ntau ± SV; muaj zog tiv thaiv - muaj peev xwm cuam tshuam xws li hluav taws xob hluav taws xob hluav taws xob hluav taws xob hluav taws xob hluav taws xob; ntev lub teeb liab kis tau tus mob, dav dav Nws tuaj yeem ncav cuag 150m, thiab nws tuaj yeem tshaj 600m nrog cov khoom siv hluav taws xob ntxiv; nws yog ib qho yooj yim rau nruab thiab debug; Nws yog ib qho yooj yim kom paub txog kev txawj ntse tswj thiab lwm yam ntxwv, uas tag nrho overcomes lub shortcomings ntawm analog hnyav load hlwb. Nws yog lub tshuab ntsuas hluav taws xob digital, ntsuas qhov ntsuas tsis siv neeg, thiab tswj qhov system, uas yuav tsum tsis siv neeg Qhov kev xaiv thawj zaug rau ntsuas qhov ntsuas qhov ntsuas, ntau yam batching scales nrog cov qauv nyuaj, ntim ntsuas, thiab super- cov khoom siv hluav taws xob loj.
Los ntawm qhov kev xav ntawm ntau yam, qauv, thiab siv cov cuab yeej siv hluav taws xob, cov khoom siv hluav taws xob digital tsis tuaj yeem hloov pauv cov khoom lag luam analog. Nyob rau hauv ib lub sij hawm ntev ntawm lub sij hawm nyob rau hauv lub neej yav tom ntej, analog load hlwb tseem yuav yog kev loj hlob ntawm load hlwb. Thiab lub ntsiab ntawm daim ntawv thov. Tab sis peb yuav tsum xyuam xim rau thiab kawm txog cov kev txawj ntse ntawm cov khoom siv hluav taws xob digital thiab nws daim ntawv thov hauv cov tshuab ntsuas digital.
