Doppler flowmeter yog ib hom ultrasonic flowmeter uas siv Doppler effect los ntsuas qhov ceev ntawm cov kua. Cov khoom siv no siv rau ntau yam lag luam, suav nrog dej thiab dej khib nyiab, roj thiab roj av, thiab kev ua tshuaj lom neeg. Txawm li cas los xij, kev siv Doppler ultrasonic flow meters yuav tsum ua tau raws li qee qhov yuav tsum tau ua kom ntseeg tau tias qhov ntsuas tau raug thiab ntseeg tau.
- Cov yam ntxwv ntawm kua:
Ib qho ntawm cov kev cai tseem ceeb rau kev siv Doppler flowmeter yog tias cov kua uas ntsuas yuav tsum muaj cov khoom me me lossis cov pa npuas tsawg kawg nkaus. Qhov no yog vim tias Doppler effect vam khom cov khoom me me lossis cov npuas hauv cov kua uas cuam tshuam cov nthwv dej ultrasound. Yog li ntawd, qhov muaj cov pa npuas lossis cov khoom khov hauv cov kua yog qhov tseem ceeb rau kev ua haujlwm zoo ntawm Doppler flowmeter. - Qhov ceev tsawg kawg nkaus:
Lwm qhov tseem ceeb uas yuav tsum tau ua yog qhov ceev tsawg kawg nkaus ntawm cov kua dej. Doppler flowmeters yog qhov tseeb tshaj plaws thaum ntsuas cov nqi ntws siab dua. Yog li ntawd, nws yog qhov tsim nyog los xyuas kom meej tias qhov nrawm ntawm cov kua dej uas ntsuas tau yog nyob rau hauv qhov ntau uas tau teev tseg los ntawm Doppler flowmeter. Yog tias qhov ceev poob qis dua qhov tsawg kawg nkaus, qhov tseeb ntawm kev ntsuas yuav raug cuam tshuam. - Kev ceev faj txog kev teeb tsa:
Kev teeb tsa lub ntsuas dej Doppler kom raug yog qhov tseem ceeb rau kev ntsuas kom raug. Cov ntsuas dej yuav tsum tau teeb tsa rau qhov twg cov qauv dej tau tsim tag nrho, txhais tau tias cov dej ntws sib npaug thoob plaws tag nrho cov kav dej. Tsis tas li ntawd, yuav tsum muaj ib ntu kav dej ncaj uas ntev txaus rau sab saud thiab sab hauv qab ntawm lub cuab yeej kom ntseeg tau tias cov qauv dej ntws ruaj khov. Txhua yam kev cuam tshuam lossis kev cuam tshuam hauv cov dej ntws yuav cuam tshuam rau kev ua haujlwm ntawm Doppler flowmeter. - Cov khoom siv yeeb nkab thiab qhov loj:
Cov khoom siv thiab qhov loj ntawm cov yeeb nkab uas cov kua ntws los kuj cuam tshuam rau kev ua haujlwm ntawm Doppler flowmeter. Cov khoom siv yeeb nkab yuav tsum sib xws nrog ultrasonic, uas tso cai rau cov nthwv dej ultrasonic nkag mus rau hauv phab ntsa yeeb nkab thiab cuam tshuam nrog cov kua ntws. Tsis tas li ntawd, qhov loj ntawm cov yeeb nkab yuav tsum nyob hauv qhov ntau uas tau teev tseg los ntawm cov chaw tsim khoom kom ntseeg tau tias muaj kev ntsuas raug. - Kev kho thiab txij nkawm:
Kev ntsuas thiab kev saib xyuas tsis tu ncua yog qhov yuav tsum tau ua rau kev siv Doppler flowmeters kom raug. Kev ntsuas kom ntseeg tau tias lub 'meter' ntsuas tau qhov tseeb, thaum kev saib xyuas pab kom cov khoom siv ua haujlwm tau zoo tshaj plaws. Nws yog ib qho tseem ceeb uas yuav tsum ua raws li cov lus qhia ntawm lub chaw tsim khoom kom ntseeg tau tias kev ntsuas tau zoo.
Hauv kev xaus, Doppler flow meters yog cov cuab yeej muaj txiaj ntsig zoo rau kev ntsuas cov kua dej ntws hauv ntau yam kev siv hauv kev lag luam. Txawm li cas los xij, nws yog ib qho tseem ceeb kom ua tau raws li cov kev cai tshwj xeeb kom ntseeg tau tias muaj kev ua haujlwm raug thiab txhim khu kev qha ntawm cov khoom siv no. Los ntawm kev xav txog cov yam ntxwv xws li cov yam ntxwv ntawm cov kua, cov nqi ntws tsawg kawg nkaus, kev txiav txim siab txog kev teeb tsa, cov ntaub ntawv yeeb nkab thiab qhov loj me, thiab kev ntsuas thiab kev saib xyuas, cov neeg siv tuaj yeem ua kom muaj txiaj ntsig zoo tshaj plaws ntawm Doppler ultrasonic flow meters hauv kev ua haujlwm. Kev ua raws li cov kev cai no yuav pab ua kom muaj qhov tseeb ntawm kev ntsuas ntws thiab pab txhim kho kev ua haujlwm zoo thiab kev tsim khoom ntawm cov txheej txheem kev lag luam.
Lub sijhawm tshaj tawm: Tsib Hlis-19-2024