Umgomo oyisisekelo we-ultrasonic laser esukela
I-Flowmeter yesiteshi evulekile ye-ultrasonicyilokhu: ngokuya ngenzwa ye-ultrasonic efakwe kumshini wokulinganisa ukugeleza kwe-weir (slot), i-single-chip microcomputer kumitha yokugeleza yesiteshi evulekile iklanyelwe ukukhipha isignali ethile ye-electronic frequency ukuze kukhuthazwe icrystallization ye-piezoelectric ku-probe Thumela isignali yedatha ye-ultrasonic yefrikhwensi ekhethekile, futhi uqale isibali sikhathi ngesikhathi sokuthumela bese uqala nje ukubala isikhathi. Isignali yedatha ye-ultrasonic isakazwa ngokusho kwento ewuketshezi elinganiselwe futhi ishaya isigxobo esivamile. Phakathi kwabo, ingxenye ethile yabangela ukunanela kokuqala, futhi ingxenye yasakazeka emanzini futhi. Ingxenye yokubonisa isakazeka ibheke emuva bese ingena ku-probe, ibangele ukuthi i-chip ye-probe inyakaze, okubangele ukuguqulwa komsindo, amandla e-kinetic emishini, namandla kazibuthe kagesi ukwenza uphenyo lukhiphe isignali yokuqala ye-elekthronikhi. Lapho igagasi le-ultrasonic lisakazeka futhi emanzini lifika emanzini, ngenxa yokuthi kukhona umhwamuko (igesi) ngaphezu kwamanzi, libangela i-reflection echo yesibili ongqimbeni lwesixhumi esibonakalayo somhwamuko, futhi i-echo ebonisiwe iyahlakazeka futhi ibuyele emuva i-piezoelectric crystal. I-probe ikhipha enye isignali ye-electronic. Okusho ukuthi, i-echo ebonisiwe yokuqala ibangelwa endaweni eyireferensi (induku evamile), futhi i-echo yesibili ebonisiwe ibangelwa isendlalelo esibonakalayo somhwamuko. Lapho i-probe ithola igagasi elibonisiwe, inqamula ngokushesha isikhathi. Ngalesi sikhathi, isikhathi siyarekhodwa. Idivayisi irekhoda isikhathi sokusabalala se-wave ye-ultrasonic ukusuka ekuthumeleni kuye kokwamukela. Futhi u-t, ngokwefomula H: ht/t0, (h isilinganiso sobude nobubanzi bomphezulu we-weir (umkhombe)) yi-aspect ratio ye-probe ye-flowmeter yesiteshi evulekile ukuya kuzinga loketshezi H.
Isilinganiso esinembile esingathinteki: Inzwa ayiluthinti uketshezi, futhi ngeke igugulwe futhi ingcoliswe amanzi angcolile. Inzwa iyisakhiwo segobolondo se-ABS esivaliwe, esimelana nama-alkali nokugqwala, futhi singasetshenziswa isikhathi eside endaweni yemvelo enomswakama futhi ebandayo; Kala uketshezi lwamanzi ngokushesha: Inzwa ikala ngokushesha imitha yezinga loketshezi lendawo yamanzi ewuketshezi. Ayisebenzisi imithombo emile, engagwema ukuvimba ipayipi elixhumayo ngenxa yokusetshenziswa kwemithombo emile, izinto eziqinile ezimisiwe emanzini angcolile, esihlabathini esihle, njll., okuholela emithonjeni emile kanye nemisele yokulinganisa Umzila wezinga lamanzi ethangi awuhambisani, noma ufanelekile. ukuze kube yiqhwa ebusika, kukhiqizwa imitha yezinga le-alamu engamanga, okubangela ukulinganiswa kokugeleza okungalungile; Ukuzivumelanisa nezimo kuyo yonke indawo: Setha amapharamitha ayinhloko wephaneli yensimbi ngokuya ngekhibhodi, engasetshenziswa kumaweirs okulinganisa amanzi ahlukahlukene. Amazinga ahlukene okufaka isicelo afana nokuhlanganiswa emiseleni yokunisela inhlabathi namapayipi kakhonkolo angaphansi komhlaba;
Ukusekelwa kwesevisi okuningiliziwe: Noma yimuphi umbhalo obonisa indlela yokufaka iphaneli yensimbi, indlela yepharamitha eyisisekelo, ukwakheka kanye nendlela yokufaka yokulinganisa kwamanzi, kanye nendlela yokulinganisa nokuqinisekisa yokuchezuka kokugeleza okuphelele; Ikhwalithi enokwethenjelwa: Ngemva kweminyaka yokukhiqiza, ukusebenza, nokuzwakala kwe
ama-flowmeters wesiteshi esivulekile se-ultrasonic, izicelo ezikhona lapho ziqinisekisile ukuthi izici zomkhiqizo zihlangabezana nezidingo zokulinganisa nokuqinisekiswa kwamanzi angcolile.
