Ii-Clamp-on Doppler flowmeterszilungele kuphela ulwelo olunenani elithile lee-acoustic scatterers, zixhomekeke kumgaqo we-Doppler effect ukulinganisa isantya sokuhamba ngokubona utshintsho lwemvamisa kumaza esandi abonakaliswa zi-scatterers (umz., amasuntswana, amaqamza) kulwelo. Nazi iintlobo ezithile zolwelo kunye neemeko ezibalulekileyo zokusetyenziswa kwazo:
Iindidi zolwelo ezifanelekileyo eziphambili
1. Ulwelo oluneziqwenga eziqinileyo
Imidiya Eqhelekileyo:
Indle, udaka, i-pulp yeminerali, i-pulp yephepha, amanzi amdaka emizi-mveliso (aqulethe amasuntswana anjenge-sediment, inkunkuma, imicu, enesayizi yamasuntswana angama-≥30 μm).
Ulwelo olugcwele amasuntswana kwishishini lokutya (umz., ijusi yeziqhamo ene-pulp, iisosi, iziselo eziqulethe iinkozo).
Izinto ezixutyiweyo kwishishini leekhemikhali (umz., imixube yee-catalyst particles, i-pigment slurry).
Iimfuno eziphambili:
Uxinzelelo lwamasuntswana kufuneka lube yi-≥100 ppm ukuqinisekisa imiqondiso yokubonakalisa i-acoustic eyaneleyo.
I-acoustic impedance yamasuntswana kufuneka yahluke kakhulu kweyolwelo (umz., amasuntswana aqinileyo abonisa iziphumo ezingcono zokubonakalisa ngenxa yokwahluka okukhulu kwe-impedance emanzini).
2. Ulwelo oluneebhamuza
Imidiya Eqhelekileyo:
Ukuhamba kwegesi-ulwelo okunezigaba ezimbini (umz., ulwelo lwenkqubo yemizi-mveliso olunamaqamza omoya, ulwelo lokubilisa ibhiya).
Ulwelo oluxutyiweyo okanye olunomoya (umz., ukungcola okuvela kwiitanki zomoya xa kucocwa amanzi amdaka).
Izinto ekufuneka ziqwalaselwe:
Amaqamza kufuneka asasazwe ngokulinganayo kulwelo, kuthintelwe "iiqela zegesi" okanye igesi ekhululekileyo kakhulu (enokubangela ukusasazeka kwesignali engaguqukiyo).
3. Ulwelo oluyi-Turbid okanye oluyi-Opaque
Imeko eziqhelekileyo:
Ulwelo apho iindlela zokulinganisa ezibonakalayo (umz., ii-magnetic flowmeters) zingasebenzi kakuhle ngenxa yokungakwazi ukungena kakuhle (umz., izisombululo zeekhemikhali ezinombala omnyama, amanzi anodaka).
Iintlama okanye ii-emulsions kwishishini lokutya (umz., isosi yetshokholethi, iioyile ezixutyiweyo).
Ixesha lokuthumela: Juni-04-2025