Tsamaisong ea mokelikeli oa indasteri, tlhoko ea lisebelisoa tsa ho lekanya tse kopanyang ho nepahala le tšitiso e fokolang ea ts'ebetso e entse hore li-flowmeter tsa ultrasonic li fetole papali. Ho fapana le lisebelisoa tsa setso tsa ho lekanya phallo—tse kang li-turbine metres tse hlokang likarolo tsa kahare ho sebelisana le maro, kapa li-di-pressure metres tse fapaneng tse behang kotsing ea ho koaloa le ho silafala—li-flowmeter tsa ultrasonic li sebetsa ntle le ho kenella phaepheng kapa ho ama mokelikeli ka booona. Moralo ona o sa hlaseleng, o kopantsoeng le theknoloji e tsoetseng pele ea ts'ebetso ea matšoao, o li lumella ho fana ka data e nepahetseng haholo, ho sebetsana le lintlha tsa bohloko bo boholo liindastering tse tlohang kalafong ea metsi ho ea ho oli le khase, le tlhahiso ea meriana.
Molao-motheo oa mantlha oa li-flowmeter tsa ultrasonic o ho sebelisa mokhoa oa maqhubu a molumo ho bala lebelo la mokelikeli. Mefuta e mengata ea indasteri e itšetlehile ka mahlale a mabeli a bohlokoa: nako ea transit le phello ea Doppler, e 'ngoe le e 'ngoe e etselitsoe mefuta e itseng ea mokelikeli empa e shebane ka ho lekana le ho se kenelle. Li-flowmeter tsa ultrasonic tsa transit li sebelisa li-transducer tse peli tse kentsoeng ka ntle holim'a phaephe, e 'ngoe e fetisa 'me e 'ngoe e amohela matšoao a ultrasound. Ha mokelikeli o phalla ka phaepheng, lets'oao le tsamaeang ka lehlakoreng la phallo (tlase) le nka nako e nyane ho fihla ho moamoheli, ha lets'oao le tsamaeang khahlanong le phallo (holimo) le nka nako e telele. Methara e bala phapang ea nako pakeng tsa matšoao ana a mabeli, ebe e sebelisa data ena - hammoho le bophara ba phaephe le thepa ea mokelikeli - ho bala sekhahla sa phallo ka ho nepahala ho makatsang, hangata ka hare ho ±0.5% ea boleng ba 'nete bakeng sa metsi a hloekileng.
Bakeng sa maro a nang le dikarolwana tse leketlileng kapa dipululana (tse kang metsi a ditshila, ditshila, kapa oli e tala), ho ratwa di-flowmeter tsa ultrasonic tsa Doppler-effect. Disebediswa tsena di ntsha maqhubu a modumo a maqhubu a hodimo a tlolang dikarolwana tse mokelikeling; maqhubu a bonahatswang a ba le phetoho ya maqhubu (e tsejwang e le phello ya Doppler) ho latela lebelo la dikarolwana, le amanang ka ho toba le sekgahla sa phallo ya mokelikeli. Esita le ka dikarolwana tsena, di-Doppler metres di boloka ho nepahala ka ho sefa lerata la bokamorao, ho netefatsa hore dipalo tse tshepahalang ntle le ho hloka ho sitisa phallo ya mokelikeli kapa ho pepesetsa dikarolo dinthong tse kgopang kapa tse senyang.
Tsela eo di-flowmeter tsa ultrasonic di sa hlaseleng ka yona e tlisa melemo e mengata e sebetsang e ntlafatsang bokgoni le katleho ya ditjeo. Ho kenya ha ho hloke ho kgaola diphaephe, ho tjheseletsa, kapa ho kwala—ditsebi di hokela di-transducer feela kantle ho phaephe, ho fokotsa nako ya ho sebetsa ho tloha matsatsing (bakeng sa dimithara tsa setso) ho ya ho dihora kapa esita le metsotso. Sena se bohlokwa haholo diindastering tse kang tlhahiso ya motlakase, moo ho sitisa phallo ya metsi a pholileng ho ka lebisang ho kgaoheng ho turang. Ho feta moo, kaha ha ho na dikarolo tsa ka hare, dimithara tsa ultrasound di qoba mathata a kang ho tsofala, ho kwala, kapa tshilafalo ya mokelikeli—mathata a hlaselang turbine kapa dimithara tse ntle tsa ho falla. Ka mohlala, tlhahisong ya meriana, sena se bolela hore ha ho kotsi ya hore dikarolwana tsa tshepe tse tswang dikarolong tse tsofetseng di kenelle ho ba tse hlwekileng haholo, ho netefatsa hore di latela melao e thata ya taolo.
Ho nepahala ho hoholo ke matla a mang a hlalosang, a kgonehang ke kgatelopele tshebetsong ya matshwao a dijithale le theknoloji ya sensor. Di-flowmeter tsa sejwalejwale tsa ultrasonic di ka fetola diphetoho tse kang mocheso, kgatello, le thepa ya phaephe (mohlala, tshepe, PVC, kapa koporo) ka nako ya sebele, di lokisa diphoso tse ka bang teng tsa matshwao le ho boloka ho nepahala maemong a fetohang a tshebetso. Mohlala, ditsamaisong tsa kabo ya metsi, di ka lemoha esita le ho dutla ho honyenyane kapa ho fetofetoha ha phallo, di thusa ditshebeletso tsa motlakase ho fokotsa tshenyo ya metsi le ho ntlafatsa tshebetso ya marangrang. Indastering ya oli le kgase, bokgoni ba tsona ba ho lekanya maro a nang le viscosity e phahameng ka ho nepahala bo netefatsa ho lefisa ho nepahetseng bakeng sa ho tsamaisa mafura le ho thibela tahlehelo ya lekeno ho tswa diphosong tsa tekanyo.
Kantle ho lits'ebetso tsa indasteri, li-flowmeter tsa ultrasonic le tsona li ntse li hohela tlhokomelo libakeng tsa bolulo le tsa khoebo—joalo ka li-meter tsa metsi tse bohlale tse nolofalletsang ho beha leihlo tšebeliso hole—ka lebaka la moralo oa tsona o moqotetsane le litlhoko tse tlase tsa tlhokomelo. Ha botsitso bo ntse bo fetoha ntho ea bohlokoa lefatšeng ka bophara, bokhoni ba tsona ba ho latela tšebeliso ea mokelikeli ka tšebeliso e fokolang ea matla (tse ngata li sebetsa ka libeteri tse nang le matla a tlase) bo eketsa ho hohela ha tsona.
Qetellong, di-flowmeter tsa ultrasonic di hlalosa botjha tekanyo ya mokelikeli ka ho kopanya boiketlo bo sa hlaseleng ka ho nepahala ho hoholo. Ka ho tlosa mefokolo ya disebediswa tsa setso—ho tloha nakong ya ho se sebetse ha ho kenngwa ho isa dikotsing tsa tšilafalo—ha di ntlafatse feela bokgoni ba tshebetso empa hape di tshehetsa ho latela melao, ho boloka ditjeo, le botsitso ho pholletsa le diindasteri. Ha theknoloji e ntse e tswela pele ho hatela pele, ho nepahala ha tsona le ho tenyetseha ha tsona di tla hola feela, di tiise karolo ya tsona jwalo ka lejwe la motheo la ditsamaiso tsa tsamaiso ya mokelikeli tsa sejwalejwale.
Nako ea poso: Loetse-25-2025