Ukulinganisa nokuqapha ingcindezi kuyingxenye ebalulekile yezinqubo zesimanje zezimboni. Ingcindezi okufanele ilinganiswe ingachazwa njengezigaba ezahlukene ngokusekelwe ekubhekiseleni kokulinganisa. Nakuba ukulinganisa ingcindezi yegeji kunganele ukusetshenziswa okuningi kwezimboni, ngezinye izikhathi sebenzisa ithuluzi elibonisa ingcindezi ephelele liyadingeka.
Ukucindezela Okuphelele kanye Nokukala Ukucindezela
Umkhathi womhlaba unesisindo futhi udala ingcindezi ngokwawo. Inani lengcindezi yomkhathi libizwa nangokuthi ingcindezi ye-ambient, ehlukahluka cishe ku-101.325kPa (umkhathi ojwayelekile) ngokwezinga kanye nezimo zezulu. Umehluko oyinhloko wengcindezi engapheli kanye nengcindezi yegeji usekutheni ingcindezi yomkhathi ifakiwe yini. Indawo yokubhekisela yengcindezi yegeji ingcindezi yomkhathi kanti yengcindezi engapheli iyindawo ye-vacuum lapho ingcindezi yomkhathi ingekho nhlobo. Ngakho-ke ukufundwa kwengcindezi engapheli empeleni kubonisa isamba sengcindezi yomkhathi kanye nengcindezi yegeji.
Ingcindezi ivame ukulinganiswa ngokulinganisa ukuguquguquka kwento yokuzwa, lapho uhlangothi olulodwa lwento luvezwa ku-reference kanti olunye uhlangothi luthintana ne-process medium. Kwi-gauge pressure sensor, uhlangothi lwe-diaphragm olungathintani ne-medium luvulelwa ukucindezela okuzungezile, okuhlinzeka ngokufundwa kwengcindezi ye-gauge okuwumehluko wengcindezi phakathi kwenqubo kanye nengcindezi yomoya. Nge-absolute pressure sensor, i-diaphragm ivezwa ekamelweni le-absolute vacuum elivalwe unomphela. Njengoba i-vacuum evalwe isetshenziswa njengendawo yokubhekisela, ukuguquguquka kwe-diaphragm akuthintwa umoya.
Njengoba izikhungo zezimboni zivame ukuba nokuphakama okufanayo futhi ukusetshenziswa kwazo kwengcindezi akuthinteki yizinguquko zengcindezi yomoya, ukulinganisa ingcindezi ejwayelekile kunembile ngokwanele ezinqubweni eziningi. Kodwa-ke, izimo ezikhethekile zidinga ingcindezi ephelele, engancikile ekushintsheni kwengcindezi yomoya. Ama-transmitter aphelele avame ukubonakala emikhakheni yokucubungula amakhemikhali, izindiza, i-HVAC, ngokuvamile ngenxa yezizathu ezilandelayo ezivamile:
- ✦ Le nqubo idinga ukugcina isimo se-vacuum noma isimo sokucindezela esiphansi kakhulu, okudinga ukulinganiswa kokucindezela okuphelele ukuze kugcinwe inani eliqondile.
- ✦ Inqubo incike ekususeni igesi noma ekukhipheni igesi futhi idinga ukwazi amandla aphelele asele ekamelweni ukuze inqume ukuthi inqubo isiqediwe nini.
- ✦ Isitsha sisebenza ngaphansi kwe-vacuum ukuze kwehliswe izinga lokubila eliphakathi nendawo futhi ukulawula okunembile kwengcindezi ephelele kubalulekile.
- ✦ Ngesikhathi sokuhlolwa kwenjini, ingcindezi eku-intake manifold ivame ukuba ngaphansi kwengcindezi yomoya futhi iyadingeka ekubalweni kwesisindo somoya.
Shanghai Wangyuanungumkhiqizi onolwazi kanye nomhlinzeki wezinsimbi zokulinganisa iminyaka engaphezu kwengu-20. I-Wangyuan inikeza uhla oluphelele lweama-pressure transmitterukuze uthole izixazululo zokulinganisa okuhlanganisa ingcindezi ephelele, i-gauge kanye ne-differential pressure. Uma unemibuzo mayelana nokukhethwa kwama-absolute pressure transmitters, sicela ukhululeke ukuxhumana nathi.
Isikhathi sokuthunyelwe: Feb-27-2026