Mamita oyenda ali ndi ntchito zosiyanasiyana m'makampani opanga makina, pakuyezera ma media osiyanasiyana monga madzi, mafuta, ndi gasi.Lero, ndikuwonetsa mbiri yachitukuko cha ma flow metres.
Mu 1738, a Daniel Bernoulli adagwiritsa ntchito njira yopondereza yosiyanitsira kuyeza kuyenda kwamadzi potengera equation yoyamba ya Bernoulli.
Mu 1791, Italy GB Venturi adaphunzira kugwiritsa ntchito machubu a venturi kuyeza kuyenda ndikusindikiza zotsatira.
Mu 1886, American Herschel inagwiritsa ntchito ulamuliro wa Venturi kuti ukhale chipangizo choyezera choyezera madzi.
M'zaka za m'ma 1930, njira yogwiritsira ntchito mafunde omveka poyesa kuthamanga kwa madzi ndi mpweya inawonekera.
Mu 1955, Maxon flowmeter ntchito njira lamayimbidwe mkombero anayambitsa kuyeza otaya mafuta ndege.
Pambuyo pa zaka za m'ma 1960, zida zoyezera zidayamba kukula molunjika komanso pang'ono.
Pakadali pano, ndi chitukuko chaukadaulo wophatikizika wozungulira komanso kugwiritsa ntchito ma microcomputer ambiri, kuthekera kwa kuyeza koyenda kwapitilizidwa bwino.
Tsopano pali electromagnetic flowmeters, turbine flowmeters, vortex flowmeters, akupanga flowmeters, zitsulo rotor flowmeters, orifice flowmeters.
Nthawi yotumiza: Dec-15-2021