Isimiso sokusebenza kwesikhathi sokuhamba
Isimiso Sokulinganisa:
Isimiso Sokuxhumana Kwesikhathi Sokuhamba sisebenzisa iqiniso lokuthi isikhathi sokundiza kwesignali ye-ultrasonic sithinteka yijubane lokugeleza kwe-carrier medium. Njengomuntu obhukudayo ohamba ngendlela yakhe emfuleni ogelezayo, isignali ye-ultrasonic ihamba kancane phezulu kunokwehla.
OkwethuAmamitha okugeleza e-ultrasonic e-TF1100sebenza ngokwalesi simiso sesikhathi sokuthutha:
Vf = Kdt/TL
Kuphi:
Ijubane le-VcFlow
K: Okuhlala Njalo
i-dt: Umehluko ngesikhathi sokundiza
TL: Isikhathi Sokuhamba Esigcwele Ulaka
Uma i-flow meter isebenza, ama-transducer amabili adlulisa futhi athole izimpawu ze-ultrasonic ezikhuliswa yi-multi beam ehamba kuqala phansi bese ikhuphuka. Ngenxa yokuthi umsindo we-ultra uhamba ngokushesha phansi kunowe-upstream, kuzoba nomehluko wesikhathi sokundiza (dt). Uma ukugeleza kumile, umehluko wesikhathi (dt) u-zero. Ngakho-ke, uma nje sazi isikhathi sokundiza kokubili phansi naphezulu, singabala umehluko wesikhathi, bese kuba yijubane lokugeleza (Vf) ngale ndlela elandelayo.
Indlela ye-V
Indlela ye-W
Indlela ka-Z
Isimiso sokusebenza kwe-Doppler
IDF6100I-flowmeter yochungechunge isebenza ngokudlulisa umsindo we-ultrasonic kusuka ku-transducer yayo edlulisa umsindo, umsindo uzoboniswa yizibonisi ze-sonic eziwusizo ezilengiswe ngaphakathi koketshezi futhi ziqoshwe yi-transducer ethola umsindo. Uma izibonisi ze-sonic zihamba ngaphakathi kwendlela yokudlulisa umsindo, amaza omsindo azoboniswa ngemvamisa eshintshiwe (imvamisa ye-Doppler) kusuka kumvamisa odlulisiwe. Ukushintsha kwemvamisa kuzohlobana ngqo nesivinini senhlayiya ehambayo noma ibhamuza. Lokhu kushintsha kwemvamisa kuhunyushwa yithuluzi futhi kuguqulwe kube amayunithi okulinganisa ahlukahlukene achazwe ngumsebenzisi.
Kumelwe kube nezinhlayiya ezinkulu ngokwanele ukubangela ukubonakaliswa okude - izinhlayiya ezinkulu kune-100 micron.
Uma ufaka ama-transducer, indawo yokufaka kumele ibe nobude obanele bepayipi eliqondile phezulu naphansi komfula. Ngokuvamile, ipayipi elingaphezulu lidinga i-10D kanti ipayipi elingezansi lidinga ipayipi eliqondile elingu-5D, lapho u-D ewububanzi bepayipi.
Isimiso sokusebenza kwesivinini sendawo
I-DOF6000Imitha yokugeleza kwesiteshi esivulekile yochungechunge isebenzisa i-Continuous Mode Doppler ukuthola ijubane lamanzi, isignali ye-ultrasonic idluliselwa ekugelezeni kwamanzi bese kwamukelwa futhi kuhlaziywe ama-echo (ukubonakaliswa) okuvela ezinhlayiyeni ezilengiswe ekugelezeni kwamanzi ukuze kukhishwe i-Doppler shift (ijubane). Ukudluliselwa kuyaqhubeka futhi ngesikhathi esifanayo nokwamukelwa kwesignali ebuyisiwe.
Ngesikhathi somjikelezo wokulinganisa i-Ultraflow QSD 6537 ikhipha isignali eqhubekayo futhi ilinganisa izimpawu ezibuya kuma-scatterers noma kuphi nakuphi eduze komugqa. Lezi zixazululwa ngesivinini esimaphakathi esingahlotshaniswa nesivinini sokugeleza kwesiteshi ezindaweni ezifanele.
Umamukeli osethuluzini uthola izimpawu ezibonisiwe futhi lezo zimpawu zihlaziywa kusetshenziswa amasu okucubungula izimpawu zedijithali.
Ukulinganiswa Kokujula Kwamanzi – I-Ultrasonic
Ukuze kulinganiswe ukujula, i-Ultraflow QSD 6537 isebenzisa i-Time-of-Flight (ToF) Ranging. Lokhu kuhilela ukudlulisa ukuqhuma kwesignali ye-ultrasonic phezulu emanzini kanye nokukala isikhathi esithathwa yi-echo kusuka ebusweni okufanele yamukelwe yithuluzi. Ibanga (ukujula kwamanzi) lihambisana nesikhathi sokuhamba kanye nesivinini somsindo emanzini (kulungiswe izinga lokushisa kanye nobuningi).
Ukulinganiswa kokujula okuphezulu kwe-ultrasonic kunqunyelwe ku-5m.
Ukulinganisa Ukujula Kwamanzi - Ingcindezi
Izindawo lapho amanzi equkethe khona imfucumfucu noma amabhamuza omoya amaningi zingase zingafaneleki ukulinganiswa kokujula kwe-ultrasonic. Lezi zindawo zifaneleka kangcono ukusebenzisa ingcindezi ukuthola ukujula kwamanzi.
Ukulinganisa ukujula okusekelwe ekucindezelweni kungasebenza nasezindaweni lapho ithuluzi lingenakutholakala khona phansi kwesiteshi sokugeleza noma lingenakufakelwa ngokuvundlile.
I-Ultraflow QSD 6537 ifakwe inzwa yokucindezela okuphelele enamabha amabili. Inzwa itholakala ebusweni obungezansi bethuluzi futhi isebenzisa isici sokuzwa ukucindezeleka kwedijithali esikhokhelwa izinga lokushisa.
Lapho kusetshenziswa khona izinzwa zokucindezela kokujula, ukushintshashintsha kwengcindezi yomoya kuzodala amaphutha ekujuleni okubonisiwe. Lokhu kulungiswa ngokususa ingcindezi yomoya ekucindezelweni kokujula okulinganisiwe. Inzwa yokucindezela ye-barometric iyadingeka ukwenza lokhu. Imojula yesinxephezelo sokucindezela yakhelwe ku-Calculator DOF6000 ezobe isinxephezelisa ngokuzenzakalelayo ukushintshashintsha kwengcindezi yomoya ukuqinisekisa ukuthi kufezwa isilinganiso sokujula esinembile. Lokhu kwenza i-Ultraflow QSD 6537 ibike ukujula kwamanzi kwangempela (ingcindezi) esikhundleni sokucindezela kwe-barometric kanye nekhanda lamanzi.
Izinga lokushisa
Inzwa yokushisa yesimo esiqinile isetshenziswa ukukala izinga lokushisa lamanzi. Ijubane lomsindo emanzini kanye nokusebenza kwawo kuthinteka izinga lokushisa. Ithuluzi lisebenzisa izinga lokushisa elilinganisiwe ukuze libuyisele ngokuzenzakalelayo lokhu kuguquguquka.
Ukuqhuba Ugesi (EC)
I-Ultraflow QSD 6537 ifakwe amandla okukala ukuhanjiswa kwamanzi. Kusetshenziswa ukucushwa kwama-electrode amane aqondile ukwenza isilinganiso. Kudlula ugesi omncane emanzini bese kulinganiswa i-voltage ethuthukiswa yilo gesi. Ithuluzi lisebenzisa la manani ukubala ukuhanjiswa kwamanzi okungalungisiwe.