E loketse mochine oa khatello ea oli ea Dongfeng Cummins 4921489

1. Sensor ea khatello ke eng?

Sensor ea khatello ke sesebelisoa leha e le sefe se lemohang khatello e hlahisoang ke ntho kapa 'mele. Palo ea khatello ea sesebelisoa e ka baloa ka tšusumetso ea eona ho sensor. Li-sensor li ka ba tsa digital kapa tsa analog, empa ka tsela leha e le efe, li ka romela letšoao la ho bala la boleng bo itseng ba khatello sebakeng se hōle.

Lentsoe "sensor" hape ke lentsoe le akaretsang le le akaretsang ho isa bohōleng bo itseng, ho kenyelletsa le lisebelisoa tse ikhethang, tse kang li-transducer le li-transmitters. Ka mantsoe a mang, le hoja li-transducers tsohle tsa khatello e le li-sensor, hase li-sensors tsohle tsa khatello e leng li-transducer. U ka boela ua bua ka likarolo tsa tsamaiso ea tekanyo e amehang ka ho toba ke khatello e le "li-sensor", ho e-na le likarolo tse ikemetseng tsa tsamaiso tse fetolang tlhahisoleseding ena ka lipontšo tsa elektronike.

2. Sensor ea khatello e sebetsa joang?

Joaloka sesebelisoa sa electromechanical, sensor ea khatello e ka lemoha le ho shebella khatello ea tsamaiso ea mokelikeli ka ho fetola matla a 'mele ho sesebelisoa hore e be pontšo ea motlakase.

Sensor e rarahaneng ea khatello ke karolo ea tsamaiso e kholoanyane, e sa bale feela boemo ba khatello e sebelisoang tsamaisong, empa ha e le hantle e ikarabella bakeng sa ho shebella le ho laola tsamaiso ho arabela boemong ba khatello e fumanoeng. Ka phetoho ea khatello, tlhahiso ea pontšo ea sensor e tla boela e fetohe. Sena se ka 'na sa etsa hore litaolo tse lokiselitsoeng ho bulela, ho tima kapa ho lokisa boemo ba likarolo tsa sistimi libakeng tse ling tse fumanoeng.

3. Transducer ea khatello ke eng?

Pressure transducer ke mofuta oa sensor ea khatello, e bopiloeng ka karolo e hlokolosi ea khatello le karolo ea phetoho ea lets'oao. Transducer e fetola lets'oao la motlakase oa boemo bo tlase ho tsoa khatellong ea mochini o kenang (ho tloha khase kapa mokelikeli) ho ea ho proportional voltage kapa milliampere output. "Transduction" e bolela "phetoho".

4. Mosebetsi oa transducer oa khatello ke ofe?

Transducer e bala khatello ea tsamaiso ea mokelikeli. Joale, motlakase kapa tlhahiso ea hona joale ea transducer e ka fetisetsoa sebakeng se hole bakeng sa ho shebella le ho tsebisa taolo ea othomathike kapa ea matsoho ea sistimi. Mefuta ea tlhahiso ea analoge e kenyelletsa: 4–20 mA, 0–5 VDC, 0–10 VDC, 1Vac kapa 0.333Vac. Haeba u sebelisa mochine oa khatello ea dijithale (AKA pressure transmitter), lisebelisoa tsa elektronike tse tsoetseng pele haholo li ka fana ka mosebetsi oa ho romela melaetsa ka mekhoa ea puisano ea indasteri e kang Modbus kapa BACnet.

5. Li-transducer tsa khatello e omileng le e metsi

Transducer ea khatello e ommeng e lekanya phapang ea khatello sebakeng se omileng (joalo ka tsamaiso ea liphaephe tsa moea kapa tsa khase), ha transducer e nang le metsi e tla lumella ho utloa khatello tsamaisong ea metsi (joaloka pipeline).