Unokukhetha njani iNqanaba lokuThutha?

• Intshayelelo

Isidlulisi somlinganiselo wolwelo sisixhobo esinika umlinganiselo oqhubekayo wenqanaba lolwelo.Ingasetyenziselwa ukumisela inqanaba lolwelo okanye ulwelo oluninzi ngexesha elithile.Inokulinganisa inqanaba lolwelo losasazo olufana namanzi, ulwelo lwe-viscous kunye namafutha, okanye imidiya eyomileyo enje ngobuninzi obuqinileyo kunye nomgubo.

Isidlulisi sokulinganisa inqanaba lolwelo sinokusetyenziswa kwiimeko ezahlukeneyo zokusebenza ezinjengezikhongozeli, amatanki nkqu nemilambo, amadama kunye namaqula.Ezi zithuthi zidla ngokusetyenziswa ekuphatheni izinto, ukutya kunye nesiselo, amandla, imichiza, kunye namashishini okucoca amanzi.Ngoku makhe sijonge kwiimitha zomgangatho wolwelo ezininzi ezisetyenziswa ngokuqhelekileyo.

• Uluvo lwenqanaba lokuntywila

Ngokusekwe kumgaqo wokuba uxinzelelo lwe-hydrostatic lulingana nomphakamo wolwelo, isivamvo somgangatho ophantsi kwamanzi sisebenzisa isiphumo se-piezoresistive sesilicon esasaziweyo okanye isivamvo se-ceramic ukuguqula uxinzelelo lwe-hydrostatic lube ngumqondiso wombane.Emva kwembuyekezo yeqondo lokushisa kunye nokulungiswa komgca, iguqulwa ibe yi-4-20mADC imveliso yesignali esemgangathweni yangoku.Ingxenye ye-sensor ye-submersible hydrostatic pressure transmitter inokufakwa ngokuthe ngqo kulwelo, kwaye inxalenye yokuhambisa inokulungiswa ngeflange okanye isibiyeli, ukwenzela ukuba kube lula kakhulu ukuyifaka kunye nokusetyenziswa.

Isivamvo somgangatho ophantsi kwamanzi senziwe luhlobo oluphezulu lokuzibekelwa bucala olusasaziweyo lwesilicon, enokufakwa ngokuthe ngqo kwisikhongozeli okanye amanzi ukulinganisa ngokuchanekileyo umphakamo ukusuka ekupheleni kwesixhobo ukuya kumphezulu wamanzi, kunye nokukhupha inqanaba lamanzi nge-4 - 20mA yangoku. okanye RS485 uphawu.

• Uluvo lwenqanaba lemagnethi

Isakhiwo se-magnetic flap sisekelwe kumgaqo we-by-pass pipe.Umgangatho wolwelo kumbhobho oyintloko uhambelana naloo nto kwisixhobo sesikhongozeli.Ngokomthetho we-Archimedes, i-buoyancy eyenziwa yi-float magnetic kulwelo kunye nebhalansi yomxhuzulane idada kwinqanaba lolwelo.Xa umgangatho wolwelo wenqanawa ulinganisiwe unyuka kwaye uhla, i-rotary float kumbhobho oyintloko wemitha yomgangatho wolwelo nayo iyenyuka kwaye iwe.Intsimbi esisigxina yamagnetic kwindawo edadayo iqhuba ikholamu ebomvu nemhlophe kwisalathiso ukuba ijike i-180 ° ngeqonga lokudibanisa imagnethi.

Xa umgangatho wolwelo uphakama, i-float iyatshintsha ukusuka kumhlophe ukuya kubomvu.Xa umgangatho wolwelo uwela, i-float iyatshintsha ukusuka ebomvu ukuya kumhlophe.Umda omhlophe-bomvu bubude obuchanekileyo bomgangatho wolwelo oluphakathi kwisikhongozeli, ukuze kuqondwe inqanaba lenqanaba lolwelo.

• Isivamvo senqanaba lolwelo lwemagnethi

Ulwakhiwo lwesivamvo somgangatho wolwelo wemagnetostrictive luqulathe ityhubhu yentsimbi estainless (intonga yokulinganisa), ucingo lwemagnetostrictive (ucingo lwewaveguide), ifloat eshukumayo (enemagnethi esisigxina ngaphakathi), njalo njalo. yangoku kucingo lwe-waveguide, kunye ne-pulse yangoku umhlaba wemagnethi uya kwenziwa ujikeleze ucingo lwe-waveguide xa i-waves isasaza ecaleni kocingo lwe-waveguide.

I-float ilungiselelwe ngaphandle kwentonga yokulinganisa ye-sensor, kwaye i-float ihamba phezulu kwaye ihla kunye nentonga yokulinganisa kunye nokutshintsha kwinqanaba lolwelo.Kukho iseti yezangqa ezinozibuthe ezisisigxina ngaphakathi kwendawo edadayo.Xa intsimi yemagnethi yangoku idibana nesangqa semagnethi eveliswa kukudada, umhlaba wemagnethi ojikeleze indawo edadayo uyatshintsha, ukuze ucingo lwe-waveguide olwenziwe ngezinto zemagnetstrictive luvelise ipulse ejikelezayo kwindawo yokudada.I-pulse igqithiselwa ngasemva kunye nocingo lwe-waveguide kwisantya esisisigxina kwaye ifunyenwe yindlela yokufumanisa.Ngokulinganisa umda wexesha phakathi kokuhambisa i-pulse yangoku kunye ne-torsional wave, indawo ye-float inokuqinisekiswa ngokuchanekileyo, oko kukuthi, indawo yendawo yamanzi.

• Isivamji seNqanaba leNqanaba loMathiriyeli weRadio Frequency Admittance

Ukwamkelwa kwamaza kanomathotholo bubuchwephesha obutsha bolawulo oluphuhliswe ukusuka kulawulo lwenqanaba le-capacitive, oluthembeke ngakumbi, oluchaneke ngakumbi kwaye lusebenza ngakumbi.Kukuphuculwa kobuchwephesha bolawulo lwenqanaba le-capacitive.
Oku kubizwa ngokuba yi-radio frequency admittance ithetha ukuphinda-phinda kokuphazamiseka kombane, okwenziwa licandelo elichasayo, icapacitive component kunye ne-inductive component.Irediyo yerediyo ngumaza wamaza erediyo yemitha yenqanaba lolwelo oluphezulu, ke ngoko ukwamkelwa kwamaza kanomathotholo kunokuqondwa njengokulinganisa ukwamkelwa ngamaza onomathotholo aphuma phezulu.

Xa isixhobo sisebenza, inzwa yesixhobo yenza ixabiso lokungena kunye nodonga kunye nomlinganiselo ophakathi.Xa umgangatho wezinto eziphathekayo utshintsha, ixabiso lokuvuma liyatshintsha ngokufanelekileyo.Iyunithi yesekethe iguqula ixabiso lokuvuma elilinganisiweyo kwimveliso yenqanaba lesixhobo ukuze kuqondwe umlinganiselo wenqanaba lezinto.

• imitha yenqanaba le-ultrasonic

Imitha yenqanaba le-ultrasonic sisixhobo senqanaba ledijithali esilawulwa yi-microprocessor.Kwimilinganiselo, i-pulse ultrasonic wave ithunyelwa yinzwa, kwaye i-wave wave ifunyenwe yi-sensor efanayo emva kokubonakaliswa ngendawo yezinto, kwaye iguqulelwe kwisignali yombane.Umgama phakathi kwenzwa kunye nento ephantsi kovavanyo ibalwa ngexesha phakathi kwezandi zesandi ezithumela kunye nokufumana.

Iingenelo azikho inxalenye eshukumayo yomatshini, ukuthembeka okuphezulu, ukufakela okulula kunye nokufanelekileyo, ukulinganisa okungenalo uqhagamshelwano, kwaye akuchatshazelwa yi-viscosity kunye nokuxinana kolwelo.

Ukungalungi kukuba ukuchaneka kuncinci, kwaye uvavanyo lulula ukuba lube nommandla oyimfama.Akuvumelekanga ukulinganisa isitya soxinzelelo kunye ne-volatile medium.

• Imitha yenqanaba lerada

Imowudi yokusebenza yemitha yenqanaba lolwelo lweradar isasaza ebonisa ukwamkela.I-eriyali yemitha yenqanaba lolwelo lweradar ikhupha amaza ombane, abonakaliswa ngumphezulu wento elinganisiweyo emva koko yamkelwe yi-eriyali.Ixesha lamaza e-electromagnetic ukusuka ekugqithiseni ukuya ekufumaneni lilingana nomgama wenqanaba lolwelo.Imitha yenqanaba lolwelo lwe-radar irekhoda ixesha lamaza e-pulse, kwaye isantya sokuhanjiswa kwamaza ombane we-electromagnetic sihlala sihleli, emva koko umgama ukusuka kwinqanaba lolwelo ukuya kwi-eriyali ye-radar unokubalwa, ukuze wazi inqanaba lolwelo lwenqanaba lolwelo.

Kwisicelo esisebenzayo, kukho iindlela ezimbini zemitha yenqanaba lolwelo lweradar, ezizezi, ukumodareyitha okuqhubekayo kwamaza kunye ne-pulse wave.Imitha yenqanaba lolwelo kunye netekhnoloji emoduliweyo eqhubekayo eqhubekayo inosetyenziso lwamandla aphezulu, inkqubo yocingo emine kunye nesekethe ye-elektroniki entsonkothileyo.Imitha yenqanaba lolwelo kunye neteknoloji ye-radar pulse wave inosetyenziso oluphantsi lwamandla, inokunikwa amandla ngenkqubo yocingo ezimbini ze-24 VDC, kulula ukufikelela kuyo ukhuseleko lwangaphakathi, ukuchaneka okuphezulu kunye noluhlu olubanzi lwesicelo.

• Imitha yenqanaba leradar ekhokelwayo

Umgaqo osebenzayo we-radar wave level transmitter iyafana naleyo ye-radar level gauge, kodwa ithumela i-microwave pulses ngentambo yoluvo okanye intonga.Umqondiso ubetha umphezulu wolwelo, emva koko ubuyela kwi-sensor, kwaye emva koko ufikelele kwi-transmitter house.Izinto zombane ezidityanisiweyo kwizindlu zothumelo zimisela inqanaba lolwelo ngokusekwe kwixesha elithathayo ukuze umqondiso uhambe ecaleni kwenzwa kwaye ubuye kwakhona.Ezi ntlobo zothutho lwamanqanaba zisetyenziswa kwizicelo zamashishini kuzo zonke iinkalo zobugcisa benkqubo.