Doppler ultrasonic flowmeter siv lub physics ntawm Doppler nyhuv, nyob rau hauv tej kua ntws nyob rau hauv lub xub ntiag ntawm discontinuity yuav tsum reflected ultrasonic teeb liab zaus hloov (uas yog, teeb liab theem sib txawv), los ntawm kev ntsuas lub theem sib txawv, qhov txaus tus nqi yuav ntsuas.Kev hloov pauv zaus yog ib qho kev ua haujlwm ntawm qhov ntws ntawm tus nqi, uas yog lim los ntawm Circuit Court los tsim ib qho kev ruaj khov, rov ua dua, thiab cov kab qhia tawm.Cov kev tsis sib xws no yuav raug tshem tawm cov npuas, cov khoom khib nyiab, lossis cov cuam tshuam vim muaj kuab paug.Cov sensors tsim thiab tau txais cov cim qhia ultrasonic, thiab cov txheej txheem xa tawm cov cim qhia los muab cov txiaj ntsig analog rau cov dej ntws thiab cov khoom sib sau.Lanry Instruments Doppler ultrasonic flowmeter muaj qhov tshwj xeeb digital filtering thev naus laus zis thiab zaus hloov kho demodulation thev naus laus zis, tuaj yeem hloov kho lub teeb liab tau txais waveform, nws tuaj yeem ntsuas lub hauv ob sab phlu ntawm cov kav dej, thiab cov raj xa dej tsis zoo.Txhawm rau txhim kho lub sensor, cov dej ntws thiab qis ntawm qhov chaw teeb tsa yuav tsum muaj cov kav dej ncaj nraim.Feem ntau, cov dej ntws xav tau 10D ntawm cov yeeb nkab ncaj, thiab cov dej hauv qab xav tau 5D ntawm cov yeeb nkab ncaj.D yog txoj kab uas hla.
Doppler ultrasonic flowmeters tshwj xeeb yog tsim los rau kev ntsuas cov kua uas muaj ntau cov impurities xws li cov khoom siv los yog npuas los yog cov kua qaub.Feem ntau siv hauv cov teb hauv qab no:
1) Cov dej phwj tuaj qub, cov dej phwj muaj roj, dej khib nyiab, dej qias neeg, thiab lwm yam.
2) Cov ntaub ntawv ua kua uas muaj cov khoom thiab cov npuas hauv cov txheej txheem tsim khoom, xws li tshuaj lom neeg slurry, kua paug pov tseg, thiab lwm yam.
3) Cov kua uas muaj cov hmoov av thiab cov khoom, xws li cov kua slag, roj av drilling cov kua dej, chaw nres nkoj dredging, thiab lwm yam.
4) Txhua yam turbid slurry, xws li pulp, pulp, roj crude, thiab lwm yam.
5) Lub on-line installation yog pluggable, uas yog tshwj xeeb tshaj yog haum rau ntsuas tus thawj dej phwj ntws ntawm cov yeeb nkab loj txoj kab uas hla.
6) Field flow calibration thiab flow test of the above work medium, and field calibration of other flowmeters.
Post lub sij hawm: Aug-20-2021