Pawg Neeg Saib Xyuas Kev Tshawb Fawb Txog Kev Tshawb Fawb thiab thev naus laus zis txhais tau tias nws yog: ib qho cuab yeej uas qhia txog qhov ntsuas qhov ntsuas thiab / lossis tag nrho cov kua dej hauv lub sijhawm xaiv. Hauv cov ntsiab lus yooj yim, nws yog ib qho cuab yeej siv los ntsuas qhov ntws ntawm cov kua hauv lub raj xa dej lossis qhib channel.
Flowmeters tau muab faib ua qhov sib txawv siab flowmeters, rotor flowmeters, throttling flowmeters, slit flowmeters, volumetric flowmeters, electromagnetic flowmeters, ultrasonic flowmeters, thiab lwm yam. Classified los ntawm nruab nrab: kua flowmeters thiab gas flowmeters.