Doppler ultrasonic flowmeter imagwiritsa ntchito fiziki ya Doppler effect, pakuyenda kulikonse kwamadzimadzi ngati pali kusagwirizana kudzawonetsedwa kusintha kwa ma frequency a signal ultrasound (ndiko kuti, kusiyana kwa gawo la chizindikiro), poyesa kusiyana kwa gawo, kuthamanga kwa madzi kumatha kuyezedwa. Kusintha kwa ma frequency ndi ntchito yolunjika ya kuthamanga kwa madzi, komwe kumasefedwa kudzera mu dera kuti kupange chizindikiro chokhazikika, chobwerezabwereza, komanso cholunjika. Kusagwirizana kumeneku kungakhale thovu loyimitsidwa, zolimba, kapena ma interfaces chifukwa cha kusokonezeka kwa madzi. Masensa amapanga ndikulandira zizindikiro za ultrasonic, ndipo ma transmitters amakonza zizindikiro kuti apereke zotsatira za analog kuti ziwonetsedwe ndi cumulant. Lanry Instruments Doppler ultrasonic flowmeter ili ndi ukadaulo wapadera wosefera wa digito ndi ukadaulo wosintha ma frequency, womwe umapanga chizindikiro cha mafunde cholandiridwa, umatha kuyeza mzere wa payipi, ndipo kugwedezeka kwa payipi sikuli kovuta kwambiri. Kuti muyike sensa, malo oyambira ndi otsika a malo oyika ayenera kukhala ndi gawo lalitali lolunjika la payipi. Nthawi zambiri, pamwamba pa mtsinje pamafunika 10D ya payipi yolunjika, ndipo pansi pa mtsinje pamafunika 5D ya payipi yolunjika. D ndiye m'mimba mwake wa payipi.
Ma Doppler ultrasonic flowmeters apangidwa mwapadera kuti ayesere madzi okhala ndi zonyansa zambiri monga tinthu tolimba kapena thovu kapena madzi odetsedwa pang'ono. Amagwiritsidwa ntchito makamaka m'magawo otsatirawa:
1) Zimbudzi zoyambirira, zimbudzi zokhala ndi mafuta, madzi otayira, madzi odetsedwa ozungulira, ndi zina zotero.
2) Zinthu zamadzimadzi zokhala ndi tinthu ndi thovu popanga mafakitale, monga mankhwala osungunuka, zinyalala zapoizoni, ndi zina zotero.
3) Madzi okhala ndi matope ndi tinthu tating'onoting'ono, monga madzi otayira, madzi obowola mafuta, kupukuta ndi madoko, ndi zina zotero.
4) mitundu yonse ya matope otayirira, monga zamkati, zamkati, mafuta osakonzedwa, ndi zina zotero.
5) Kukhazikitsa pa intaneti kungathe kutsegulidwa, komwe ndikoyenera kwambiri poyesa kuyenda kwa zinyalala koyambirira kwa mapaipi akuluakulu.
6) Kuyesa kayendedwe ka madzi m'munda ndi njira yogwiritsira ntchito yomwe ili pamwambapa, ndi kuyesa kayendedwe ka madzi m'munda kwa zida zina zoyezera madzi.
Nthawi yotumizira: Ogasiti-20-2021