Kwihlabathi lobushushuumlinganiselo wamandla, iimitha zobushushu ze-electromagnetic kunye neemitha zobushushu ze-ultrasonic zihlukile njengezixhobo ezimbini ezidumileyo neziphucukileyo kwezobuchwepheshe. Nangona injongo yazo efanayo yokulinganisa ngokuchanekileyo ukusetyenziswa kobushushu, zibonisa umahluko omkhulu kwimigaqo yazo yokusebenza, iimpawu zokusebenza, kunye neemeko zesicelo. Ukuqonda olu mahluko kubalulekile ekukhetheni isisombululo sokulinganisa ubushushu esifanelekileyo kwiinkqubo ezahlukeneyo zokufudumeza nokupholisa.
1. Imigaqo Yokusebenza
1.1 Iimitha zobushushu ze-Electromagnetic
Iimitha zobushushu ze-electromagnetic zisebenza ngokusekelwe kumthetho kaFaraday wokungenisa i-electromagnetic. Ngaphakathi kwimitha, kukho intsimi yemagnethi eveliswa zii-coils. Xa i-conductive heating medium, efana namanzi, idlula kwityhubhu yokulinganisa yemitha ithe nkqo kule ntsimi yemagnethi, amandla e-electromotive ayabangelwa. Ngokomthetho kaFaraday, ubukhulu balo mandla e-electromotive buhambelana ngokuthe ngqo nesantya sokuhamba kwe-medium kunye namandla entsimi yemagnethi. Ngokulinganisa le voltage ibangelwayo,umgangatho wohamboyesixhobo sokufudumeza sinokumiselwa. Ngokudityaniswa nokulinganisa umahluko wobushushu phakathi kwemibhobho yokuhambisa kunye neyokubuyisela, ukusetyenziswa kobushushu kungabalwa ngokuchanekileyo. Lo mgaqo wenza iimitha zobushushu ze-electromagnetic zibe novakalelo olukhulu ekuhambeni kolwelo oluqhubayo, kwaye zinokubonelela ngeziphumo zokulinganisa ezithembekileyo logama nje ulwelo lugcina umbane uqhuba.
1.2 I-UltrasonicIimitha zobushushu
Iimitha zobushushu ze-ultrasonic, kwelinye icala, zisebenzisa umgaqo wokusasazwa kwe-ultrasonic kulwelo. Ziquka ii-transducers ze-ultrasonic ezikhupha kwaye zifumana amaza e-ultrasonic. Kukho iindlela ezimbini eziphambili zokulinganisa ukuhamba: indlela yokuhamba - ixesha kunye nendlela ye-Doppler. Kwindlela yokuhamba - ixesha, amaza e-ultrasonic athunyelwa phezulu nasezantsi ngokusebenzisa i-flow medium. Umahluko kwixesha lokusasazwa kwamaza e-ultrasonic ahamba kwicala eliphezulu nelisezantsi uyalinganiswa. Lo mahluko wexesha unxulumene nesantya sokuhamba kwe-medium. Njengoko i-medium ihamba, i-ultrasonic wave ehamba ngezantsi iyakhawuleziswa, ngelixa leyo ihamba phezulu incitshiswa. Ngokubala lo mahluko wexesha kunye nokusebenzisa iifomyula ezifanelekileyo, izinga lokuhamba lingafunyanwa. Indlela ye-Doppler, esebenza ikakhulu kulwelo olunee-particles ezixhonyiweyo okanye amaqamza, ilinganisa ukutshintsha kwe-frequency yamaza e-ultrasonic abonakala kwezi particles zihambayo ukuze kuchongweisantya sokuhambaNgokufana neemitha zobushushu ze-electromagnetic, iimitha zobushushu ze-ultrasonic zikwalinganisa umahluko wobushushu phakathi kwemibhobho yokuhambisa kunye neyokubuyisela ukuze kubalwe ukusetyenziswa kobushushu.
2. Ukuchaneka kokulinganisa kunye nobuthathaka
2.1 Iimitha zobushushu ze-Electromagnetic
Iimitha zobushushu ze-electromagnetic zihlala zibonelela ngokuchaneka okuphezulu kunye nokuzinza, ngakumbi kwiilwelo ezicocekileyo neziqhuba umbane. Ukuchaneka kwazo akuchaphazeleki kangako zizinto ezifana nokuxinana kolwelo kunye noxinano, lo gama nje ulwelo luhlala luqhuba umbane. Zinokufikelela kwinqanaba lokuchaneka ukusuka ku-±0.5% ukuya ku-±1% phantsi kweemeko eziqhelekileyo zokusebenza. Nangona kunjalo, ukuba ulwelo luqulethe inani elikhulu lezinto ezingahambisi umbane, ezifana namaqamza omoya okanye iinxalenye ezingezizo eziqhuba umbane, zinokuphazamisa intsimi yemagnethi kwaye zinciphise ukuchaneka kokulinganisa.
2.2 Iimitha zobushushu ze-Ultrasonic
Ukuchaneka kweemitha zobushushu ze-ultrasonic kuxhomekeke kwizinto ezahlukeneyo, kubandakanya umgangatho wee-transducers ze-ultrasonic, umgangatho wofakelo, kunye neempawu zolwelo olulinganisiweyo. Kwiimeko ezifanelekileyo, ngolwelo olucocekileyo kunye nofakelo olufanelekileyo, iimitha zobushushu ze-ultrasonic ezisebenzisa indlela ye-transit-time zinokufikelela ukuchaneka okumalunga ne-±1% ukuya kwi-±2%. Nangona kunjalo, ubukho bezinto eziqinileyo ezixhonyiweyo, isikali, okanye amaqamza omoya kulwelo bunokuphazamisa ukusasazeka kwamaza e-ultrasonic, okukhokelela kwiimpazamo zokulinganisa. Iimitha zobushushu ze-ultrasonic zohlobo lwe-Doppler, ezifanelekileyo ngakumbi kulwelo olungcolileyo, ngokubanzi zinochaneko oluphantsi xa kuthelekiswa nohlobo lwe-transit-time, ngokuqhelekileyo malunga ne-±2% ukuya kwi-±5%.
3. Imizekelo yokusetyenziswa
3.1 I-ElectromagneticIimitha zobushushu
Iimitha zobushushu ze-electromagnetic zifanelekile kakhulu kwizicelo apho isixhobo sokufudumeza sicocekile kwaye siqhuba kakuhle, njengakwiinkqubo zokufudumeza eziphakathi ezinamanzi acociweyo, iinkqubo zokufudumeza izakhiwo zanamhlanje, kunye neenkqubo zoshishino ezinee-conductive fluids. Azikhuthazwa ukuba zisetyenziswe kunye nee-non-conductive fluids okanye ii-fluids ezinomthamo ophezulu wokungcola okungenakho ukuqhubela phambili, njengoko oku kunokubangela ukungaphumeleli kokulinganisa. Ukongeza, ngenxa yesakhiwo sazo, iimitha zobushushu ze-electromagnetic zifuna ubude obuthile beepayipi ezithe tye ngaphambi nasemva kokufakwa ukuqinisekisa iimeko zokuhamba ezizinzileyo, ezinokunciphisa ukusetyenziswa kwazo kwiindawo ezithile ezixineneyo.
3.2 Iimitha zobushushu ze-Ultrasonic
Iimitha zobushushu ze-ultrasonic ziguquguquka ngakumbi ngokweemeko zesicelo. Uhlobo lwexesha lokuthutha lufanelekile kwiimveliso zolwelo ezicocekileyo kwaye lusetyenziswa kakhulu kwiinkqubo zokufudumeza zokuhlala, kwiinethiwekhi zokufudumeza zesithili, nakwiinkqubo zokubonelela ngamanzi. Iimitha zobushushu ze-ultrasonic zohlobo lwe-Doppler zinokuphatha iimveliso ezinamaqhekeza axhonyiweyo okanye amaqamza, nto leyo eyenza ukuba zisebenze kwiinkqubo zoshishino apho ulwelo lunokuba nokungcola, njengezityalo zonyango lwamanzi amdaka okanye ezinye iinkqubo zokwenza iimveliso ezinolwelo olungcolileyo. Ngaphezu koko, iimitha zobushushu ze-ultrasonic azifuni ubude obuthe tye bepayipi njengeemitha zobushushu ze-electromagnetic, nto leyo eyenza zibe lukhetho olulula ngakumbi lokufakelwa kwiindawo ezixineneyo.
4. Ukugcinwa Nokuqina
4.1 I-ElectromagneticIimitha zobushushu
Iimitha zobushushu ze-electromagnetic zihlala zinesakhiwo sangaphakathi esilula esingenazo iindawo ezishukumayo, nto leyo enciphisa umngcipheko wokuguguleka koomatshini. Nangona kunjalo, ityhubhu yokulinganisa inokuba phantsi kokugqwala kunye nokukhula ngokuhamba kwexesha, ingakumbi xa ijongene nolwelo olunezinto ezirhabaxa okanye amanqanaba aphezulu eeminerali. Ukuhlolwa rhoqo kunye nokucocwa kwetyhubhu yokulinganisa kuyimfuneko ukugcina ukuchaneka kokulinganisa. Ukongeza, iikhoyili ze-electromagnetic kunye nee-electrodes kufuneka zikhuselwe kuphazamiseko lombane kunye nomonakalo womzimba.
4.2 I-UltrasonicIimitha zobushushu
Iimitha zobushushu ze-ultrasonic nazo azinazo iindawo ezihambayo, nto leyo enegalelo ekuthembekeni kwazo ixesha elide. Eyona ngxaki iphambili yokugcinwa kweemitha zobushushu ze-ultrasonic kukusebenza kwee-transducers ze-ultrasonic. Ekuhambeni kwexesha, ii-transducers zinokonakala ngenxa yezinto ezifana nokuguquguquka kobushushu, ukubola kweekhemikhali, okanye ukungcangcazela koomatshini. Ukulinganiswa rhoqo kunye nokuhlolwa kwee-transducers kuyafuneka ukuqinisekisa ukulinganiswa ngokuchanekileyo. Nangona kunjalo, xa kuthelekiswa neemitha zobushushu ze-electromagnetic, iimitha zobushushu ze-ultrasonic ngokubanzi azichaphazeleki kakhulu kukubola kolwelo kunye nokukhula, nto leyo eyenza zihlale ixesha elide kwezinye iindawo ezinzima zolwelo.
Ukuqukumbela, iimitha zobushushu ze-electromagnetic kunye neemitha zobushushu ze-ultrasonic nganye ineengenelo kunye nemida yayo. Iimitha zobushushu ze-electromagnetic zigqwesile ekulinganiseni ulwelo olucocekileyo, oluqhubayo ngokuchanekileyo okuphezulu, ngelixa iimitha zobushushu ze-ultrasonic zibonelela ngokuguquguquka okukhulu kwiimeko zokusetyenziswa kwaye zilungelelaniswa ngakumbi neemeko ezahlukeneyo zolwelo. Xa ukhetha phakathi kwezi zimbini, izinto ezifana nohlobo lwesixhobo sokufudumala, ukuchaneka kokulinganisa okufunekayo, indawo yokufaka, kunye neemfuno zokugcinwa kufuneka ziqwalaselwe ngononophelo ukuqinisekisa ukusebenza kakuhle kobushushu -inkqubo yokulinganisa.
Ixesha leposi: Meyi-27-2025