Ma ultrasound flow meters amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana poyesa kuyenda kwa madzi ndi mpweya.

Ma flow meter a ultrasound amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana poyesa kuyenda kwa madzi ndi mpweya. Chimodzi mwa ma flow meter odziwika bwino ndi Doppler flow meter. Mtundu uwu wa flow meter umagwiritsa ntchito Doppler effect poyesa kuyenda kwa madzi okhala ndi tinthu tomwe timayimitsidwa kapena thovu la mpweya. Ma flow meter a Doppler ndi othandiza kwambiri pakugwiritsa ntchito madzi kapena mpweya womwe uli ndi zinthu zosafunika kapena tinthu tolimba.

Pali mitundu yambiri ya ma ultrasound flow meters, iliyonse ili ndi mawonekedwe ake apadera komanso ntchito zake. Kuwonjezera pa Doppler flowmeters, mitundu ina ya ma ultrasound flowmeters ndi transit flowmeters ndi open channel flowmeters.

Ma flow meter nthawi zambiri amagwiritsidwa ntchito poyeretsa madzi pomwe madziwo alibe tinthu tomwe timapachikidwa kapena thovu la mpweya. Ma flow meter amenewa amagwira ntchito poyesa kusiyana kwa nthawi yomwe chizindikiro cha ultrasound chimayenda mmwamba ndi pansi mu madziwo. Poyerekeza nthawi yoyendera, kuchuluka kwa madziwo kumatha kudziwika bwino.

Koma ma flowmeter otseguka amagwiritsidwa ntchito poyesa kuyenda kwa madzi m'njira zotseguka monga mitsinje, mitsinje, ndi ngalande. Ma flowmeter amenewa amagwiritsa ntchito masensa a ultrasound poyesa mulingo ndi kuchuluka kwa madzi, zomwe zimathandiza kuti pakhale kuwerengera kolondola kwa madzi.

Mtundu uliwonse wa ultrasound flow meter uli ndi ubwino ndi zofooka zake, zomwe zimapangitsa kuti ugwiritsidwe ntchito mosiyanasiyana. Doppler flow meter ndi yabwino kwambiri pakugwiritsa ntchito komwe madzi kapena mpweya uli ndi zinthu zosafunika kapena tinthu tolimba, pomwe transit flow meter ndi yoyenera kwambiri pakugwiritsa ntchito madzi oyera. Open channel flowmeters, kumbali ina, idapangidwa makamaka kuti iyeze kuyenda kwa madzi m'njira zotseguka.

Kuwonjezera pa zinthu zomwe zimagwiritsidwa ntchito, ma ultrasound flow measure amapereka ubwino wambiri kuposa ukadaulo wachikhalidwe woyezera mayendedwe. Salowerera, zomwe zikutanthauza kuti sakhudzana ndi madzi kapena mpweya woyenda, zomwe zimachepetsa chiopsezo cha kuipitsidwa kapena kuwonongeka kwa flow meter. Ma ultrasound flow meters amaperekanso kulondola kwambiri ndipo amatha kuyeza mayendedwe ndi kutsika kochepa kwa mphamvu, zomwe zimapangitsa kuti akhale abwino kwambiri pantchito zosiyanasiyana zamafakitale.

Kuphatikiza apo, zoyezera kuyenda kwa madzi pogwiritsa ntchito ma ultrasound ndizosavuta kuyika ndi kusamalira, zomwe zimafuna nthawi yochepa yoti zikhazikitsidwe komanso kuyesedwa. Zimathanso kuyeza kuyenda kwa madzi mbali zonse ziwiri, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito komwe kuyenda kwa madzi kungasinthe pakapita nthawi.

Mwachidule, zoyezera kuyenda kwa madzi ndi mpweya (ultrasonic flow meter), kuphatikizapo Doppler, transit ndi open channel flow meter, zimapereka njira zosiyanasiyana komanso zodalirika zoyezera kuyenda kwa madzi ndi mpweya m'mafakitale osiyanasiyana. Mtundu uliwonse wa zoyezera kuyenda kwa madzi ndi mpweya uli ndi mawonekedwe akeake apadera, kotero ndikofunikira kusankha mtundu woyenera wa zoyezera kuyenda kutengera zofunikira za ntchitoyo. Chifukwa cha kusalowerera kwawo, kulondola kwambiri komanso kusavuta kuyiyika, zoyezera kuyenda kwa madzi ndi mpweya (ultrasonic flow meter) zimakhalabe chisankho chodziwika bwino choyezera kuyenda kwa madzi m'mafakitale osiyanasiyana.