1. Electromagnetic flowmeter:
Electromagnetic flowmeteryog ib qho cuab yeej rau ntsuas cov kua conductive ua raws li Faraday txoj cai ntawm electromagnetic induction.
Lub tshuab electromagnetic flowmeter muaj cov yam ntxwv zoo heev, uas tuaj yeem daws cov teeb meem uas lwm cov flowmeters tsis yooj yim rau kev thov, xws li kev ntsuas cov dej qias neeg thiab kev xeb.
2. Turbine flowmeter:
Turbine flowmeteryog hom tseem ceeb ntawm kev ceev flowmeter. Nws siv ntau lub ntsej muag rotor (turbine) kom paub qhov nruab nrab ntawm cov kua dej thiab muab cov ntws los yog tag nrho cov nyiaj los ntawm nws. Feem ntau, nws yog tsim los ntawm ob qhov chaw, ib lub sensor thiab cov zaub, thiab nws kuj tuaj yeem ua rau hauv ib hom.
Turbine flowmeters, zoo hloov pauv flowmeters, thiab huab hwm coj flowmeters raug xa mus rau peb hom flowmeters nrog siab repeatability thiab siab raug, raws li ib qho ntawm kaum hom flowmeters.
3. Vortex flowmeter:
Lub vortex flowmeteryog ib lub 'meter' nyob rau hauv uas tsis yog-streamline vortex generator muab tso rau hauv cov kua, thiab cov kua yog alternated nyob rau hauv ob sab ntawm lub generator tso tawm ob series ntawm tsis tu ncua staggered vortices. Vortex flowmeters tuaj yeem muab faib ua hom kev ntxhov siab, hom kab mob, hom capacitive, hom thermal, hom vibrating, hom photoelectric thiab hom ultrasonic raws li txoj kev tshawb nrhiav zaus.
4. Ultrasonic flowmeter:
Ultrasonic flowmeteryog ib lub 'meter' uas ntsuas tus nqi ntws los ntawm kev txheeb xyuas cov nyhuv ntawm cov kua dej ntws ntawm cov nqaj ultrasonic (los yog ultrasonic pulse). Raws li lub hauv paus ntsiab lus ntawm kev kuaj pom lub teeb liab, ultrasonic flowmeters tuaj yeem muab faib ua qhov sib txawv ntawm qhov sib txawv ntawm txoj kev (ncaj sij hawm sib txawv txoj kev, lub sij hawm sib txawv txoj kev, theem sib txawv txoj kev thiab zaus txawv txoj kev), beam hloov txoj kev, Doppler txoj kev, cross-correlation txoj kev, thiab spatial filtering method Thiab suab nrov txoj cai, thiab lwm yam.
Ultrasonic flowmeters yog tib yam li electromagnetic flowmeters. Vim tias tsis muaj qhov cuam tshuam hauv cov dej ntws ntawm qhov ntsuas, lawv yog cov tsis muaj kev cuam tshuam cov flowmeters. Lawv yog ib hom flowmeter haum rau kev daws teeb meem kev ntsuas qhov nyuaj, tshwj xeeb tshaj yog nyob rau hauv qhov loj-inch flow ntsuas. Qhov zoo.