Sensor ea mocheso PZD: taolo ea mocheso le ts'ebetso ea heater

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Li-preheaters tsa enjene ho na le li-sensor tse hlokomelang mocheso oa se pholileng le ho laola ts'ebetso ea sesebelisoa.Bala ka hore na li-sensor tsa mocheso oa heater ke life, hore na ke mefuta efe, hore na li hlophisitsoe joang le hore na li sebetsa joang, mokhoa oa ho li nkela sebaka - bala sehloohong sena.

Sensor ea mocheso oa PZD ke eng?

Sensor ea mocheso ea PZD ke karolo ea sistimi ea taolo ea preheater ea enjene (heater ea enjine ea metsi, PZD), ntho e hlokolosi (ho metha transducer) bakeng sa ho metha mocheso oa sepholi.

Lintlha tse fumanoeng ho sebelisoa mochine oa mocheso li romelloa setsing sa taolo ea elektronike sa Railway, 'me motheong oa bona mocheso o buloa ka boomo, o fetola mekhoa ea oona ea ho sebetsa, kamehla kapa ho koala ha tšohanyetso.Mesebetsi ea li-sensor e itšetlehile ka mofuta oa tsona le sebaka sa ho kenya seporo.

 

Mefuta, moralo le molao-motheo oa ts'ebetso ea li-sensor tsa mocheso

Li-sensor tsa mocheso li arotsoe ka lihlopha ho ea ka molao-motheo oa ts'ebetso o behiloeng motheong oa mosebetsi oa bona, mofuta oa pontšo ea tlhahiso, moralo le ho sebetsa.

Ho latela molao-motheo oa ts'ebetso, li-sensor li kenyelletsa:

● Ho hanyetsa - li thehiloe ho thermistor (thermistor), ho hanyetsa ho itšetlehile ka mocheso.Ha mocheso o fetoha, ho hanyetsa ha thermistor ho eketseha kapa ho fokotseha, phetoho ena e ngotsoe mme e sebelisetsoa ho fumana mocheso oa hona joale;
● Semiconductor - li thehiloe ho lisebelisoa tsa semiconductor (diode, transistor kapa tse ling), litšobotsi tsa liphetoho tsa "pn" tse itšetlehileng ka mocheso.Ha mocheso o fetoha, tšobotsi ea hona joale-voltage ea "pn" junction (ho itšetleha ha hona joale ho motlakase) e fetoha, phetoho ena e sebelisetsoa ho fumana mocheso oa hona joale.

Li-sensor tse hanyetsang ke tsona tse bonolo le tse theko e tlaase, empa bakeng sa ts'ebetso ea tsona ho hlokahala ho sebelisa potoloho e fapaneng ea ho lekanya, e hlokang ho lekanya le ho lokisoa.Li-sensor tsa semiconductor li etsa hore ho khonehe ho etsa li-microcircuits tse sa utloisiseng mocheso ka potoloho e kopaneng ea ho lekanya e hlahisang lets'oao la dijithale ho tlhahiso.

Ho ea ka mofuta oa lets'oao la tlhahiso, ho na le mefuta e 'meli ea li-sensor tsa mocheso:

● Ka tlhahiso ea letšoao la analog;
● Ka tlhahiso ea lets'oao la dijithale.

Li-sensor tse bonolo ka ho fetisisa ke tse hlahisang lets'oao la dijithale - ha le khone ho sotha le liphoso, ho bonolo ho sebetsana le lipotoloho tsa sejoale-joale tsa dijithale, 'me lets'oao la dijithale le etsa hore ho be bonolo ho fetola sensor ho lekanya linako tse fapaneng tsa mocheso le ho fapana. mekhoa ea ho sebetsa.

Li-sensor tsa sejoale-joale tsa terene hangata li hahiloe motheong oa li-microcircuits tse sa utloisiseng mocheso ka lets'oao la tlhahiso ea dijithale.Motheo oa sensor e joalo ke nyeoe ea cylindrical e entsoeng ka tšepe e thibelang kutu (kapa e nang le seaparo se thibelang ho bola), ka hare ho eona ho kenngoa microcircuit e thibelang mocheso.Ka morao ho nyeoe ho na le sehokelo se tloaelehileng sa motlakase kapa sehokelo sa likhoele se tsoa le (li)hokello qetellong.Nyeoe e tiisitsoe, e sireletsa chip ho tloha metsing le litšusumetso tse ling tse mpe.Ka ntle ho nyeoe, ho na le groove bakeng sa ho kenya rabara kapa silicone O-ring, le gasket e eketsehileng e ka boela ea sebelisoa.Sensor e hanyetsanang e entsoe ka mokhoa o ts'oanang, empa e na le ntlo e moqotetsane e telele, eo qetellong ea eona ho nang le ntho e hlokolosi.

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Sekema sa terene se nang le pontšo ea libaka tsa ho kenya mocheso le li-sensor tse futhumatsang

Ho sa tsotelehe moralo, li-sensor tsa mocheso oa PZD li arotsoe ka mefuta e meraro ho latela ho sebetsa ha tsona:

● Li-sensor tsa mocheso - tse sebelisetsoang ho lekanya mocheso oa mokelikeli o tsoang o phallang ho tloha ho futhumatsang ho ea tsamaisong e pholileng ea mochine oa matla;
● Overheating sensor - e sebelisetsoang ho lekanya mocheso oa mokelikeli o kenang o kenang mocheso ho tloha tsamaisong e pholileng ea mochine oa matla;
● Universal - e ka sebetsa e le sensor ea mocheso bakeng sa mokelikeli o tsoang le o kenang.

Sensor ea mocheso ea mokelikeli o tsoang e kentsoe ka lehlakoreng la phala ea mokelikeli oa mocheso oa heater, e sebelisoa ke sistimi ea taolo ho bulela le ho tima heater ha mocheso o itseng oa enjene o fihla (hangata ho tloha ho 40 ho isa ho tse 40). 80 ° C, ho itšetlehile ka lenaneo le khethiloeng le mokhoa oa ho sebetsa oa terene).Kaha sensor ena e sebelisetsoa ho shebella le ho laola heater, e bitsoa feela mocheso oa mocheso.

Sensor e futhumatsang e kentsoe ka lehlakoreng la phallo ea mokelikeli oa preheater, e sebelisetsoa ho tima sesebelisoa ka bo eona ha pholileng e chesa haholo.Haeba, ka lebaka le leng kapa le leng, sesebelisoa sa taolo se sa tima mocheso ha mocheso o fihla ho feta 80 ° C, joale potoloho e sireletsang e qala, e timang preheater ka likhoka, e thibela enjene ho chesa haholo.

Li-sensor tsa Universal li ka etsa mesebetsi ea lisebelisoa tsena ka bobeli, li kentsoe pompong ea metsi kapa e kenang, 'me li hlophisitsoe ho latela mesebetsi eo li e abetsoeng.

Li-preheaters tsa sejoale-joale, ho sebelisoa li-sensor tse peli - mocheso le mocheso o feteletseng.Letšoao la bona le feptjoa ka likenyelletso tse tsamaellanang tsa yuniti ea taolo ea terene, ha lets'oao le tsoang ho sensor ea mocheso (mokelikeli o tsoang) le ka sebelisoa ho bonts'a tlhahisoleseling ponts'ong ea phanele ea taolo ka phaposing ea baeti / koloi ea koloi, le pontšo e tsoang ho kutlo overheating ka sebelisoa ho tsebisa ka enjene overheating.

 

Khetho le ho nkela sebaka sa li-sensor tsa mocheso

Li-heaters tsa morao-rao li na le mekhoa ea ho itlhahloba e tsebisang mokhanni ka ho se sebetse hantle ha li-sensors tsa mocheso ka lets'oao la ponts'o ea phanele ea taolo kapa ka ho khantša LED.Maemong 'ohle, haeba ho belaelloa hore ho na le ho se sebetse hantle, hoa hlokahala ho hlahloba botšepehi ba likhokahano tsa motlakase le sensor - mokhoa oa ho etsa sena o bontšoa litaelong tsa ho sebetsa le ho lokisoa ha terene.Haeba ho fumanoa ho se sebetse hantle, mochine oa mocheso o lokela ho nkeloa sebaka, ho seng joalo mocheso o ke ke oa sebetsa ka tloaelo.

Bakeng sa ho nkela sebaka, hoa hlokahala ho khetha li-sensor tsa linomoro tseo tsa lethathamo le mefuta e bontšitsoeng litaelong tsa seporo.Kajeno, bahlahisi ba bangata ba fana ka li-analogue tsa lisebelisoa tse ratoang ka ho fetisisa, tse thusang haholo khetho ea bona.Leha ho le joalo, ha u khetha, u ke ke ua tšepa morekisi ka bofofu - u lokela ho etsa bonnete ba hore sensor e ncha e na le mofuta o nepahetseng oa sehokelo 'me e na le gasket ka kit.

Ho nkeloa sebaka ha mocheso le li-sensor tse futhumatsang mocheso ho etsoa ho latela litaelo tsa terene, empa ho sa tsotelehe mohlala oa heater, mosebetsi ona o tlameha ho etsoa feela ka enjene e emisitsoeng e nang le liteishene tse tlositsoeng betri le kamora ho ntša metsi ho tsoa ho pholileng. tsamaiso.Ha u kenya sensor e ncha, ho hlokahala hore u hlokomele polarity ea ho hokahanya ha likhokahano tsa motlakase, 'me ka mor'a hore u tlatse se pholileng, u fe moea tsamaiso.

Ka khetho e nepahetseng le phetoho ea sensor ea mocheso, mocheso oa enjene o tla sebetsa ka botšepehi le ka nepo maemong 'ohle.


Nako ea poso: Aug-21-2023