- Sebenzisa indlela yesikhombisi sento engaphansi ukwethula amapharamitha obuchwepheshe e-iseli lokulayishaIndlela yendabuko ukusebenzisa inkomba yento encane. Inzuzo ukuthi incazelo engokoqobo icacile, futhi ibilokhu isetshenziswa iminyaka eminingi, futhi abantu abaningi bayayijwayele. Manje sesibala izinto zayo eziyinhloko kanje: *Inani eliphezulu lomkhawulo lobubanzi bokulinganisa elinikezwe umenzi wamandla alinganisiwe.
*Umphumela olinganisiwe (ukuzwela)
Umehluko phakathi kwesignali yokukhipha yenzwa lapho kufakwa umthwalo olinganiselwe nalapho kungekho mthwalo. Njengoba isignali yokukhipha yeseli yomthwalo ihlobene ne-voltage yokuvuselela esetshenzisiwe, iyunithi yokukhipha okulinganiselwe ivezwa ku-mV/V. Futhi ikubize ngokuthi ukuzwela.
*Ukubekezelela Ukuzwela
Iphesenti lomehluko phakathi kokukhipha okuzinzile kwangempela kwenzwa kanye nokukhipha okulinganiselwe okulinganiselwe okulinganiselwe okulinganayo okuhambisanayo nokukhipha okulinganiselwe okulinganiselwe okulinganiselwe okulinganiselwe. Isibonelo, ukuphuma okulinganiselwe kwangempela kweseli yomthwalo kungu-2.002mV/V, kanti ukuphuma okulinganiselwe okujwayelekile okuhambisanayo kungu-2mV/V, khona-ke ukubekezelela kwayo ukuzwela kungu: ((2.002–2.000)/2.000) *100%=0.1%
*Nku-linear
Ukuphambuka okukhulu phakathi komugqa oqondile okunqunywa yinani lokukhipha lokungabikho komthwalo kanye nenani lokukhipha kumthwalo olinganisiwe kanye nejika elilinganisiwe lomthwalo okhulayo yiphesenti yenani lokukhipha elilinganisiwe.
*UkulindaTukubekezelelana
Kancane kancane layisha kusukela ekungalayishweni kuya emthwalweni olinganisiwe bese ulayisha kancane kancane. Iphesenti lomehluko omkhulu phakathi kokulayisha nokukhipha umthwalo endaweni efanayo yomthwalo nenani lokukhipha elilinganisiwe.
*UkuphindaphindaEiphutha
Ngaphansi kwezimo ezifanayo zemvelo, layisha inzwa ngokuphindaphindiwe kumthwalo olinganisiwe bese uwuthulula. Iphesenti lomehluko omkhulu wenani lokukhipha endaweni efanayo yomthwalo ngesikhathi senqubo yokulayisha kumphumela olinganisiwe.
*Cukuphinda
Uma umthwalo ungaguquki (ngokuvamile uthathwa njengomthwalo olinganisiwe) kanye nezinye izimo zokuhlola zihlala zingashintshi, iphesenti lomkhiqizo weseli lomthwalo liyashintsha ngokuhamba kwesikhathi liye komkhiqizo olinganisiwe.
* UziroOukuphuma
Ngaphansi kokuvuselelwa kwe-voltage okunconywayo, inani lokukhipha lenzwa liyiphesenti lokukhipha okulinganiselwe lapho kungekho mthwalo osetshenziswayo.
*UkuvikelaRukuzibamba
Inani lokumelana kwe-DC phakathi kwesekethe yesenzwa ne-elastomer.
*Ii-nputRukuzibamba
Uma i-terminal yokukhipha isignali ivuliwe futhi inzwa ingalayishwanga, inani le-impedance lilinganiswa kusuka ku-terminal yokufaka yokunikezwa kwamandla.
*Ukuvimba Kokuphuma
I-impedance ilinganiswa kusukela ku-terminal yokukhipha isignali lapho i-terminal yokufaka yokuvuselela amandla ifinyeziwe futhi inzwa ingalayishwa.
*Izinga lokushisaCisinxephezeloRintukuthelo
Ngaphakathi kwalolu hlu lokushisa, umphumela olinganisiwe wesenzwa kanye nebhalansi engu-zero kunxeshezelwa ngokuqinile ukuze kungadluli uhla olubekiwe.
*Ithonya leZi-eroTumbuso
Izinguquko ku-zero balance ezibangelwa izinguquko ekushiseni okuzungezile. Ngokuvamile, zivezwa njengephesenti loshintsho lwe-zero balance kumphumela olinganisiwe lapho izinga lokushisa lishintsha ngo-10K.
*Ithonya leRi-atedOukuphumaTumbuso
Ushintsho lokukhishwa okulinganiselwe okubangelwa ushintsho lokushisa kwe-ambient.
Ngokuvamile, kuvezwa njengephesenti lomphumela olinganisiwe woshintsho lomphumela olinganisiwe olubangelwa yizinguquko zonke zokushisa ze-10K.
*UkusebenzaTumbusoRintukuthelo
Inzwa ngeke idale izinguquko eziyingozi ezihlala njalo kunoma yiziphi izinhlaka zayo zokusebenza ngaphakathi kwalolu hlu lokushisa
2. Amagama asetshenziswe ku-"International Recommendation No. OIML60". Ngokusekelwe kuhlelo luka-1992 lwe-"OIML No. 60 International Proposal", bhekisa kumapharamitha amasha obuchwepheshe e-"JJG669--90 Load Cell Verification Regulations":
* LayishaCu-ellOukuphuma
Ubukhulu obulinganiswayo (ubusi) obutholakala ngokuguqulwa kweseli yomthwalo bungalinganiswa.
*Ukuthweswa IziquVindlelaLi-oadCu-ell
Usayizi wengxenye eyodwa ngemva kobubanzi bokulinganisa beseli lomthwalo uhlukaniswe izingxenye ezilinganayo.
*UkuqinisekiswaDumbonoVindlelaLi-oadCu-ell (V)
Ngenhloso yokulinganisa ngokunemba, inani lesikali seli lomthwalo elivezwe kumayunithi esisindo lisetshenziswa ekuhlolweni kweseli lomthwalo.
*IMokuncaneVukuqinisekiswaDumbonoVindlela yeLi-oadCell (Vmin)
Ububanzi bokulinganisa beseli lomthwalo bungahlukaniswa ngenani elincane lokuhlukanisa lokuqinisekisa.
*OkungenaniSi-taticLi-oad (Fsmin)
Inani eliphansi lesisindo elingasetshenziswa kuseli yomthwalo ngaphandle kokudlula iphutha elikhulu elivunyelwe.
*UbuningiWi-eighting
Inani eliphakeme kakhulu lesisindo elingasetshenziswa kuseli yomthwalo ngaphandle kokudlula iphutha eliphakeme kakhulu elivunyelwe.
* Okungeyona i-linear (L)
Ukuphambuka phakathi kwejika lokulinganisa inqubo yeseli yomthwalo kanye nomugqa oqondile wethiyori.
*UkulindaEiphutha (H)
Umehluko omkhulu phakathi kokufundwa kokukhipha kweseli yomthwalo lapho kusetshenziswa izinga elifanayo lomthwalo; okunye kwakho ukufunda inqubo kusukela kumthwalo omncane omile, kanti okunye ukufunda okubuyayo kusukela ekulinganisweni okuphezulu.
*Ukuqhuma (Cp)
Uma umthwalo ungaguquki futhi zonke izimo zemvelo kanye nezinye izinto eziguquguqukayo nazo zigcinwa zingaguquki, ushintsho ekukhishweni komthwalo ogcwele weseli yomthwalo ngokuhamba kwesikhathi.
*OkungenaniSi-taticLi-oadOukuphumaRi-ecoveryPi-lant (CrFsmin)
Ngaphambi kokuba umthwalo usetshenziswe 1. Lapho wethula amapharamitha obuchwepheshe weseli lomthwalo ngendlela yokumelwa kwenkomba yento encane, indlela yendabuko ukusebenzisa inkomba yento encane. Inzuzo ukuthi incazelo ebonakalayo icacile, futhi ibilokhu isetshenziswa iminyaka eminingi, futhi abantu abaningi bayayijwayele. Manje sesibala izinto zayo eziyinhloko kanje: *Inani eliphezulu lomkhawulo lobubanzi bokukala elinikezwe umenzi wamandla alinganisiwe.
*KulinganisweOukuphuma (ukuzwela)
Umehluko phakathi kwesignali yokukhipha yenzwa lapho kufakwa umthwalo olinganiselwe nalapho kungekho mthwalo. Njengoba isignali yokukhipha yeseli yomthwalo ihlobene ne-voltage yokuvuselela esetshenzisiwe, iyunithi yokukhipha okulinganiselwe ivezwa ku-mV/V. Futhi ikubize ngokuthi ukuzwela.
*Ukubekezelela Ukuzwela
Iphesenti lomehluko phakathi kokukhipha okuzinzile kwangempela kwenzwa kanye nokukhipha okulinganiselwe okulinganiselwe okulinganiselwe okulinganayo okuhambisanayo nokukhipha okulinganiselwe okulinganiselwe okulinganiselwe okulinganiselwe. Isibonelo, ukuphuma okulinganiselwe kwangempela kweseli yomthwalo kungu-2.002mV/V, kanti ukuphuma okulinganiselwe okujwayelekile okuhambisanayo kungu-2mV/V, khona-ke ukubekezelela kwayo ukuzwela kungu: ((2.002–2.000)/2.000) *100%=0.1%
*Nku-linear
Ukuphambuka okukhulu phakathi komugqa oqondile okunqunywa yinani lokukhipha lokungabikho komthwalo kanye nenani lokukhipha kumthwalo olinganisiwe kanye nejika elilinganisiwe lomthwalo okhulayo yiphesenti yenani lokukhipha elilinganisiwe.
*UkulindaTukubekezelelana
Kancane kancane layisha kusukela ekungalayishweni kuya emthwalweni olinganisiwe bese ulayisha kancane kancane. Iphesenti lomehluko omkhulu phakathi kokulayisha nokukhipha umthwalo endaweni efanayo yomthwalo nenani lokukhipha elilinganisiwe.
*UkuphindaphindaEiphutha
Ngaphansi kwezimo ezifanayo zemvelo, layisha inzwa ngokuphindaphindiwe kumthwalo olinganisiwe bese uwuthulula. Iphesenti lomehluko omkhulu wenani lokukhipha endaweni efanayo yomthwalo ngesikhathi senqubo yokulayisha kumphumela olinganisiwe.
*Cukuphinda
Uma umthwalo ungaguquki (ngokuvamile uthathwa njengomthwalo olinganisiwe) kanye nezinye izimo zokuhlola zihlala zingashintshi, iphesenti lomkhiqizo weseli lomthwalo liyashintsha ngokuhamba kwesikhathi liye komkhiqizo olinganisiwe.
* UziroOukuphuma
Ngaphansi kokuvuselelwa kwe-voltage okunconywayo, inani lokukhipha lenzwa liyiphesenti lokukhipha okulinganiselwe lapho kungekho mthwalo osetshenziswayo.
*UkuvikelaRukuzibamba
Inani lokumelana kwe-DC phakathi kwesekethe yesenzwa ne-elastomer.
*Ii-nputRukuzibamba
Uma i-terminal yokukhipha isignali ivuliwe futhi inzwa ingalayishwanga, inani le-impedance lilinganiswa kusuka ku-terminal yokufaka yokunikezwa kwamandla.
*Ukuvimba Kokuphuma
I-impedance ilinganiswa kusukela ku-terminal yokukhipha isignali lapho i-terminal yokufaka yokuvuselela amandla ifinyeziwe futhi inzwa ingalayishwa.
*Izinga lokushisaCisinxephezeloRintukuthelo
Ngaphakathi kwalolu hlu lokushisa, umphumela olinganisiwe wesenzwa kanye nebhalansi engu-zero kunxeshezelwa ngokuqinile ukuze kungadluli uhla olubekiwe.
*Ithonya leZi-eroTumbuso
Izinguquko ku-zero balance ezibangelwa izinguquko ekushiseni okuzungezile. Ngokuvamile, zivezwa njengephesenti loshintsho lwe-zero balance kumphumela olinganisiwe lapho izinga lokushisa lishintsha ngo-10K.
*Ithonya leRi-atedOukuphumaTumbuso
Ushintsho lokukhishwa okulinganiselwe okubangelwa ushintsho lokushisa kwe-ambient.
Ngokuvamile, kuvezwa njengephesenti lomphumela olinganisiwe woshintsho lomphumela olinganisiwe olubangelwa yizinguquko zonke zokushisa ze-10K.
*UkusebenzaTumbusoRintukuthelo
Inzwa ngeke idale izinguquko eziyingozi ezihlala njalo kunoma yiziphi izinhlaka zayo zokusebenza ngaphakathi kwalolu hlu lokushisa
2. Amagama asetshenziswe ku-"International Recommendation No. OIML60". Ngokusekelwe kuhlelo luka-1992 lwe-"OIML No. 60 International Proposal", bhekisa kumapharamitha amasha obuchwepheshe e-"JJG669--90 Load Cell Verification Regulations":
* LayishaCu-ellOukuphuma
Ubukhulu obulinganiswayo (ubusi) obutholakala ngokuguqulwa kweseli yomthwalo bungalinganiswa.
*Ukuthweswa IziquVindlelaLi-oadCu-ell
Usayizi wengxenye eyodwa ngemva kobubanzi bokulinganisa beseli lomthwalo uhlukaniswe izingxenye ezilinganayo.
*UkuqinisekiswaDumbonoVindlelaLi-oadCu-ell (V)
Ngenhloso yokulinganisa ngokunemba, inani lesikali seli lomthwalo elivezwe kumayunithi esisindo lisetshenziswa ekuhlolweni kweseli lomthwalo.
*UkulinganisaSi-ensor*OkungenaniVukuqinisekiswaDumbonoVi-alue (i-Vmin)
Inani elincane kakhulu lesikali sokuqinisekisa elingalinganiswa ububanzi bokulinganisa iseli lomthwalo.
*OkungenaniSi-taticLi-oad (Fsmin)
Inani eliphansi lesisindo elingasetshenziswa kuseli lomthwalo ngaphandle kokudlula iphutha elikhulu elivunyelwe.
*UbuningiWi-eighting
Inani eliphezulu lesisindo elingasetshenziswa kuseli lomthwalo ngaphandle kokudlula iphutha eliphezulu elivunyelwe.
* Okungeyona i-linear (L)
Ukuphambuka phakathi kwejika lokulinganisa inqubo yeseli yomthwalo kanye nomugqa oqondile wethiyori.
*UkulindaEiphutha (H)
Umehluko omkhulu phakathi kokufundwa kokukhipha kweseli yomthwalo lapho kusebenza izinga elifanayo lomthwalod. OEsinye sazo inqubo yokufunda eqala kumthwalo omncane omile, kanti esinye ukufunda okubuyayo okuqala kusisindo esiphezulu.
*Ukuqhuma (Cp)
Uma umthwalo ungaguquki futhi zonke izimo zemvelo kanye nezinye izinto eziguquguqukayo nazo zigcinwa zingaguquki, ushintsho ekukhishweni komthwalo ogcwele weseli yomthwalo ngokuhamba kwesikhathi.
*OkungenaniSi-taticLi-oadOukuphumaRi-ecoveryPi-lant (CrFsmin)
Umehluko phakathi kokukhishwa okuncane komthwalo omile weseli yomthwalo okulinganiswe ngaphambi nangemva kokusetshenziswa komthwalo.
*UkuphindaphindaEiphutha (R)
Ngaphansi komthwalo ofanayo kanye nezimo ezifanayo zemvelo, umehluko phakathi kokufundwa kokukhishwa kweseli yomthwalo otholwe ekuhlolweni okuningana okulandelanayo.
*IIithonya leTumbuso kuMokuncaneSi-taticLi-oadOukuphuma (Fsmin)
Ushintsho phakathi kokukhishwa okuncane komthwalo omile ngenxa yokushintsha kwezinga lokushisa elizungezile.
*Ithonya leTi-emperature ivuliweOukuphumaSukuqina komzimba (St)
Izinguquko ekuzweleni kokukhipha ngenxa yezinguquko ekushiseni okuzungezile.
*UkulinganisaRintukuthelo Li-oadCu-ell
Ububanzi benani elilinganisiwe (ikhwalithi) lapho umphumela wokulinganisa ungeke udlule khona iphutha elikhulu elivunyelwe.
*KuphephileLukulingisaLi-oad
Umthwalo omkhulu ongasetshenziswa kuseli lomthwalo. Ngalesi sikhathi, iseli lomthwalo ngeke likhiqize ukuzulazula okungapheli ngaphezu kwenani elicacisiwe ngokwezimpawu zokusebenza.
*Ithonya leTumbuso kanyeHubumnene buvuliweMokuncaneSi-taticLi-oadOukuphuma (FsminH)
Ushintsho lokukhishwa komthwalo omncane omile ngenxa yokushintsha kwezinga lokushisa kanye nomswakama.
*Ithonya leTumbuso kanyeHubumnene buvuliweOukuphumaSukuqina
Izinguquko ekuzweleni kokukhipha ngenxa yezinguquko ekushiseni nasekuswakameni.
Ngaphezu kwalokho, ku-"JJG699-90 Load Cell Verification Regulations", kufakwe nepharamitha yobuchwepheshe, okungukuthi
*OkungenaniLi-oad (Fmin)
Inani lesisindo eliseduze nomthwalo omncane omile weseli yomthwalo ongafinyelelwa yidivayisi ekhiqiza amandla.
Kungenxa yokuthi ukulinganiswa kwenzwa kuhlala kwenziwa ku-dynamometer, futhi kunzima ukulinganisa ngqo ukusebenza kwephuzu lomthwalo elincane elingaguquki. Elinye iphuzu, "Isiphakamiso Samazwe Ngamazwe se-OIML60" senzelwe ngokukhethekile amaseli omthwalo, futhi indawo yaso yokuqala yokuhlola amaseli omthwalo ukuzivumelanisa nezidingo zezinsimbi zokukala.
, ngemva kokulinganisa umehluko phakathi kokukhishwa okuncane komthwalo omile weseli yomthwalo.
*UkuphindaphindaEiphutha (R)
Ngaphansi komthwalo ofanayo kanye nezimo ezifanayo zemvelo, umehluko phakathi kokufundwa kokukhishwa kweseli yomthwalo otholwe ekuhlolweni okuningana okulandelanayo.
*IIithonya leTumbuso kuMokuncaneSi-taticLi-oadOukuphuma (Fsmin)
Ushintsho phakathi kokukhishwa okuncane komthwalo omile ngenxa yokushintsha kwezinga lokushisa elizungezile.
*Ithonya leTi-emperature ivuliweOukuphumaSukuqina komzimba (St)
Izinguquko ekuzweleni kokukhipha ngenxa yezinguquko ekushiseni okuzungezile.
*UkulinganisaRintukutheloLi-oadCu-ell
Ububanzi benani elilinganisiwe (ikhwalithi) lapho umphumela wokulinganisa ungeke udlule khona iphutha elikhulu elivunyelwe.
*KuphephileLukulingisaLi-oad
Umthwalo omkhulu ongasetshenziswa kuseli lomthwalo. Ngalesi sikhathi, iseli lomthwalo ngeke likhiqize ukuzulazula okungapheli ngaphezu kwenani elicacisiwe ngokwezimpawu zokusebenza.
*Ithonya leTumbuso kanyeHubumnene buvuliweMokuncaneSi-taticLi-oadOukuphuma (FsminH)
Ushintsho lokukhishwa komthwalo omncane omile ngenxa yokushintsha kwezinga lokushisa kanye nomswakama.
*Ithonya leTumbuso kanyeHubumnene buvuliweOukuphumaSukuqina
Izinguquko ekuzweleni kokukhipha ngenxa yezinguquko ekushiseni nasekuswakameni.
Ngaphezu kwalokho, ku-"JJG699-90 Load Cell Verification Regulations", ipharamitha yobuchwepheshe nayo ifakiwe ohlwini..
*OkungenaniLi-oad (Fmin)
Inani lesisindo eliseduze nomthwalo omncane omile weseli yomthwalo ongafinyelelwa yidivayisi ekhiqiza amandla.
Kungenxa yokuthi ukulinganiswa kwenzwa kuhlala kwenziwa ku-dynamometer, futhi kunzima ukulinganisa ngqo ukusebenza kwephuzu lomthwalo elincane elingaguquki. Elinye iphuzu, "Isiphakamiso Samazwe Ngamazwe se-OIML60" senzelwe ngokukhethekile amaseli omthwalo, futhi indawo yaso yokuqala yokuhlola amaseli omthwalo ukuzivumelanisa nezidingo zezinsimbi zokukala.
Isikhathi sokuthunyelwe: Mashi-30-2023