Ifanele inzwa yengcindezi kawoyela ye-Dongfeng Cummins 4921489

1. Iyini inzwa yokucindezela?

Inzwa yokucindezela inoma iyiphi idivayisi ethola ukucindezela okwenziwa kuyo ngento noma umzimba. Inani lokucindezela kudivayisi lingalinganiswa ngethonya layo kunzwa. Izinzwa zingaba yidijithali noma i-analog, kodwa nganoma iyiphi indlela, zingathumela isignali yokufunda yenani elithile lokucindezela endaweni ekude.

Igama elithi “inzwa” liphinde libe yigama elivamile nelivamile ngokwezinga elithile, okuhlanganisa amathuluzi aqondile, njengama-transducer nama-transmitters. Ngamanye amazwi, nakuba wonke ama-transducer okucindezela kuyizinzwa, akuzona zonke izinzwa zokucindezela ezingama-transducer. Ungaphinda ubhekisele ezingxenyeni zesistimu yokulinganisa ezithintwa ngokuqondile ingcindezi ngokuthi "izinzwa", esikhundleni sezingxenye ezizimele zesistimu eziguqula lolu lwazi lube amasiginali kagesi.

2. Inzwa yokucindezela isebenza kanjani?

Njengesisetshenziswa se-electromechanical, inzwa yokucindezela ingakwazi ukubona futhi iqaphe ukucindezela kusistimu yoketshezi ngokuguqula amandla aphathekayo kudivayisi abe isignali kagesi.

Inzwa yokucindezela eyinkimbinkimbi iyingxenye yesistimu enkulu, engafundi kuphela izinga lokucindezela elisetshenziswa ohlelweni, kodwa empeleni inesibopho sokuqapha nokulawula uhlelo ekuphenduleni izinga lokucindezela elitholiwe. Ngokushintsha kwengcindezi, ukuphuma kwesiginali kwenzwa nakho kuzoshintsha. Lokhu kungase kuqalise izilawuli ezilungiselelwe ukuvula, ukuvala noma ukulungisa izinga lezingxenye zesistimu kwamanye amaphoyinti athile atholiwe.

3. Iyini i-pressure transducer?

I-Pressure Transducer iwuhlobo lwenzwa yokucindezela, eyakhiwe isici esizwela ukucindezela kanye nesici sokuguqula isignali. I-transducer iguqula isignali kagesi yezinga eliphansi isuka kumfutho womshini wokufaka (isuka kugesi noma uketshezi) iye kuvolthi elinganayo noma okukhiphayo kwe-milliampere. "Transduction" kusho "ukuguqulwa".

4. Uyini umsebenzi we-pressure transducer?

I-transducer ifunda ingcindezi ohlelweni lwamanzi. Khona-ke, i-voltage noma okukhiphayo kwamanje kwe-transducer kungadluliselwa endaweni eyihlane ukuze kuqashwe futhi kwaziswe ukulawula okuzenzakalelayo noma okwenziwa ngesandla kwesistimu. Izinhlobo zokuphuma kwe-analogi zifaka: 4–20 mA, 0–5 VDC, 0–10 VDC, 1Vac noma 0.333Vac. Uma usebenzisa i-digital pressure transducer (i-AKA pressure transmitter), okokusebenza kwe-elekthronikhi okuthuthuke kakhulu kungahlinzeka ngomsebenzi wokuthumela amasignali ngezivumelwano zokuxhumana zezimboni ezifana ne-Modbus noma i-BACnet.

5. Ama-transducer okucindezela okomile nokumanzi

I-transducer yokucindezela okomile ikala umehluko wengcindezi endaweni eyomile (njengesistimu yepayipi yomoya noma yegesi), kuyilapho i-transducer ye-pressure medium emanzi izovumela ukuzwa ingcindezi ohlelweni olumanzi (njengepayipi).