Ukulinganisa izinga kungaba yipharamitha ebalulekile yokusebenza ezimbonini ezisukela ku-oyela negesi kuya ekuphathweni kwamanzi. Phakathi kobuchwepheshe obuhlukahlukene obutholakalayo, ama-pressure kanye nama-differential pressure (DP) transmitters asetshenziswa kabanzi njengamadivayisi okuqapha izinga loketshezi. Embindini wawo, ukulinganisa izinga okusekelwe ekucindezelweni okusekelwe esimisweni sokucindezela kwe-hydrostatic, amandla asetshenziswa uketshezi oluphumulile ngenxa yamandla adonsela phansi. Ukucindezela kunoma yiliphi iphuzu kukholamu yoketshezi kuhambelana nokuphakama okungaphezu kwalelo phuzu, ubuningi balo, kanye nokusheshisa kwamandla adonsela phansi. Ubudlelwano buvezwa yifomula:
P = ρ × g × h
Kuphi:
P = Ukucindezela kwe-Hydrostatic
ρ = Ubuningi boketshezi
g = Ukusheshisa kwamandla adonsela phansi
h = Ukuphakama kwekholomu yoketshezi
Inzwa yokucindezela ebekwe phansi kwethangi ingalinganisa le ngcindezi, bese ibala izinga loketshezi bese iyiguqula ibe isignali kagesi ngesekethe inqobo nje uma kwaziwa ukuthi ingakanani i-medium density.
Zombili iziThuthi Zokucindezela kanye neziThuthi Zokuhlukahluka zingasetshenziswa ekulinganisweni kwezinga, kodwa ukusetshenziswa kwazo kuyahlukahluka ngokuya ngesimo sokusebenza:
Umthumeli Wokucindezela
Ukulinganisa:Ingcindezi ehlobene nengcindezi yomoya.
Isimo sokusetshenziswa:Ilungele amathangi avulekile noma iziteshi lapho ubuso boketshezi buvezwa khona emoyeni. Isibonelo, echibini, ukuphuma komthumeli kuhambisana ngokunembile nezinga lamanzi.
Ukufakwa:Ifakwe esisekelweni sethangi noma ifakwe ngaphansi koketshezi.
Umthumeli Wokucindezela Okuhlukile (DP)
Ukulinganisa:Umehluko phakathi kwezingcindezi ezimbili: ingcindezi ye-hydrostatic phansi kwethangi kanye nengcindezi engaphezu kobuso boketshezi.
Isimo Sokusetshenziswa:Kubalulekile kumathangi avaliwe/acindezelwe lapho ingcindezi yangaphakathi (evela kumagesi, umusi, noma i-vacuum) ithinta khona ukulinganiswa. Ukulinganiswa kwe-DP kuyakwazi ukubuyisa ukuphambuka nokuqinisekisa idatha yezinga elinembile.
Ukufakwa:Uhlangothi olunengcindezi ephezulu luxhuma esisekelweni sethangi kanti uhlangothi olunengcindezi ephansi luxhuma esiqongweni sethangi.
Ukusethwa kokhiye ekulinganisweni kwezinga okusekelwe ekucindezelweni
Umkhuba Wokufaka:Ama-transmitter kufanele afakwe ezingeni eliphansi kakhulu loketshezi ukuze kugwenywe ukulinganiswa okomile. Isakhiwo nesimo sesikebhe kufanele siqinisekise ukuthi izinzwa ezicwiliswayo zingacwiliswa njalo phansi. Amapayipi omugqa we-impulse we-DP transmitter kumele angabi nama-blockage, ukuvuza kanye nama-gas bubbles.
Isimo Sezemvelo Nesiphakathi:Ukuxhumeka kwe-capillary okude kungasetshenziswa ukuhlukanisa izinzwa ekushiseni ukuvimbela umonakalo we-elekthronikhi ovela ekushiseni okukhulu koketshezi. Ukuxhumeka kwenqubo ngezivalo ze-diaphragm noma izinto ezingamelani nokugqwala kungavikela izinzwa kusuka kuketshezi olunamandla. Isilinganiso sokucindezela kwe-transmitter kufanele sidlule ingcindezi yokusebenza ephezulu kufaka phakathi izimo zokuqhuma.
Isici Esithuthukisiwe Nokuhlanganiswa:Ubuchwepheshe besimanje bungaqaliswa ukuthuthukisa ukuthembeka kwethuluzi. Ukuxhumana okuhlakaniphile kuvumela ukuhlanganiswa okubushelelezi nezinhlelo zokulawula kanye nokuxilongwa kwesikhathi sangempela okuxwayisa iphutha noma ukuvaleka. Ama-transmitter ahlukahlukene alinganisa izinga kanye nokushisa ngasikhathi sinye angenza kube lula ukufakwa futhi anciphise izindleko.
Ama-pressure kanye nama-differential pressure transmitters angamathuluzi ahlukahlukene okulinganisa amazinga, anikeza ukusebenza kahle kwezindleko kanye nokuzivumelanisa nezimo kuyo yonke imboni.Shanghai Wangyuanungumkhiqizi onolwazi ohileleke embonini yezinsimbi zomculo. Singajabula ukuzwa kuwe, uma udinga izixazululo zokuqapha izinga.
Isikhathi sokuthunyelwe: Feb-11-2025