Umkhiqizi Wamathuluzi Okuthutha Ingcindezi I-Lefoo

Izindlela Zokuncintisana Zama-LEFOO Amadlulisi-Mfutho kanye Namasensa

Isidlulisi-mfutho iyithuluzi elikhipha isignali kagesi ephumayo (ma noma i-microvolt) ehluka ngokomfutho eliwutholayo. Lapho umfutho uphoqelelwa ku-chip yekristalu ngaphakathi kwensensa futhi ikristalu eguqukile ikhiqiza isignali. Isignali izodluliselwa ngentambo iye kusibonisi noma imonitha engabonisa isignali ngenani. Isibonelo: 4ma=0, 12ma=50 psi, 20ma=100 psi... Amasensa omfutho asetshenziselwa ukuhlola umfutho wegesi, uketshezi, noma omunye umkhathi.

Njengabakhiqizi bamasensa omfutho,Ukulawulwa komfutho we-LEFOObakha izinhlobo eziningi zama-transducer amasensa omfutho ngezindleko eziphansi kanye nezintengo ezinhle. I-transducer yesensa yomfutho ihlanganisa inzwa yomfutho ohlukene wezinga lamanzi, inzwa yomfutho we-vacuum ophelele, inzwa yomfutho yokushisa kwegumbi ehlakaniphile, inzwa yomfutho we-hydraulic yedijithali yezimboni, inzwa yomfutho ye-piezoresistive, inzwa yomfutho we-pneumatic enesibonisi, inzwa yomfutho ye-OEM, njll.

Amasensa Omfutho vs Ama-Transducer Omfutho vs Amadlulisi-Mfutho | Ubuchwepheshe be-LEFOO Buchaziwe

I-transducer yesensa yomfutho iyithuluzi elakhiwe isensa yomfutho kanye nesikhulisi sesignali, ai-transducer yomfuthoizohumusha idatha elinganisiwe ibe isignali kagesi ye-analog eqine kakhudlwana engafundwa futhi iboniswe kusibonisi ngesilawuli sohlelo. Isidlulisi-mfutho iyithuluzi eliguqula isignali kagesi esezingeni eliphansi evela kusensa noma i-transducer ibe yizinga eliphezulu noma uhlobo lwedatha olutholakalayo ukuze ludluliselwe amabanga amade. Njengokuphuma kwedijithali okungu-4-20 mA noma u-485. Lokhu kuphuma kungadlulisa amabanga amade. Abanye abadlulisi banganikeza idatha eyengeziwe mayelana nethuluzi noma inqubo elinganiswayo njengengxenye yokuxhumana. Isignali ye-voltage (1-5, 1-10) iyisignali ezinzile kunazo zonke ezimeni ezinomsindo kagesi njengezimboni ezihlobene namandla.

Ukuqonda Umfutho Ophelele, Umfutho We-gauge, kanye Nomfutho Ohlukene Ngamasensa e-LEFOO

Umfutho ungamandla akhona phezu kwendawo ngeyunithi ngayinye yendawo. Kunezinhlobo ezintathu zezilinganiso zomfutho: umfutho ophelele, umfutho we-gauge, kanye nomfutho ohlukene. Umfutho ophelele ubhekiswa esikhaleni se-vacuum (umfutho womoya ongu-zero). Ekusebenzeni, amasensa omfutho we-piezoresistive ophelele alinganisa umfutho ngokuhambelana nesithenjwa se-vacuum esiphezulu esivaliwe ngemuva kwe-diaphragm yawo yokuzwa. Umfutho ophelele uyisamba somfutho we-gauge (Pg) kanye nomfutho womkhathi (Paytm). Isifinyezo se-(Kpa: I-Pascal Eyinkulungwane), i-Bar noma i-PSIA (Amaphawundi Ngeyintshi Eyisikwele Ophelele). Isensa yomfutho ophelele kanye ne-altimeter ziyizinketho ezinhle zokuqapha isimo sezulu. Ngokuvamile umfutho womkhathi ojwayelekile = 101.325 pascal = 14.7 psi = 1.01 bar.

Umfutho we-gauge ungumfutho wangempela endaweni ye-vacuum. iyisifinyezo se-PAG (Ama-Pascals Gauge) noma i-PSIG (Amaphawundi Ngeyintshi Eyisikwele Gauge). Umfutho we-gauge ulinganiswa ngokuhambelana nomfutho womkhathi wendawo. Izimo zezulu kanye nezinguquko zokuphakama kuthonya ngokuqondile i-gauge. Umfutho we-gauge muhle emfutheni ongaphezu komfutho womkhathi, futhi mubi emfutheni ongaphansi kwawo. Umfutho womkhathi omaphakathi osezingeni lolwandle ungama-101.325 kpa. Umfutho We-gauge = Umfutho Ophelele - Umfutho Womkhathi. I-Kpa, i-Bar, i-PSI zisetshenziselwa ukuchaza inani lomfutho we-gauge. Ngokwesibonelo esivamile, ekuphileni kwethu kwansuku zonke, singase sipompe amathayi ethu ezimoto ukusuka ku-32 kuye ku-40 PSI ngomfutho we-gauge.

Umfutho ohlukene ufana nomfutho we-gauge, ulinganiswa ngokusekelwe kumfutho womkhathi. Umfutho ohlukene wakhiwe umfutho ophakeme kanye nomfutho ophansi, futhi ngokuvamile usetshenziselwa ukuqapha izihlungi emapayipini noma emathangini lapho zivalekile. Umfutho ohlukene ngokuvamile uyisifinyezo se-PAD (Ama-Pascals Ahlukene) noma i-PSID (Amaphawundi Ngeyintshi Eyisikwele Ahlukene, i-Kpa, ne-Bar). Umfutho ohlukene usetshenziswa futhi ku-bhayela, umfutho ophakeme noma umfutho woketshezi noma ukuhlola izinga, kanye nomfutho ophansi ekuhlolweni komfutho womoya. Imifutho emibili izokhombisa ukuthi mangaki uketshezi asele ku-bhayela.

Amayunithi omfutho yi-Pascal (Pa, N/m²), amaphawundi ngeyintshi eyisikwele (PSI), umfutho womkhathi (atm), kanye ne-bar. (I-Bar), iyintshi ye-mercury (inch Hg), imilimitha ye-mercury (mm Hg, torr), njll. I-PSI kanye ne-Bar yizo ezisetshenziswa kakhulu ezimbonini zamasensa. Umfutho Woketshezi uchazwa njengamandla oketshezi ngeyunithi ngayinye yendawo ezungezile. Isibonelo, umfutho (P) ungumsebenzi wamandla (F) nendawo (A). P = F / A, (umfutho we-gauge woketshezi = pgh)