Musiyano uripo pakati pemusiyano wenguva we ultrasonic flowmeter neDoppler ultrasonic flowmeter:

Nheyo yekuyera
Nzira yekusiyana kwenguva: pane musiyano wenguva apo mafungu eruzha anopararira daro rakafanana mumvura iri kumusoro nekumusoro, uye musiyano wenguva yekupararira unoenderana nekumhanya kwekuyerera kwemuviri wekuyerera wakayerwa. Mwero wekuyerera kwemvura unowanikwa nekuyera musiyano wenguva iyi, uye ipapo mwero wekuyerera unoverengerwa.
Nzira yeDoppler: Zvichibva paDoppler principle mu acoustics, frequency offset pakati pe reflective sound wave ne emission sound wave inoonekwa kuti ione kumhanya kwe fleets dziri mu fluid, kuitira kuti pave nekumhanya kwe flow uye flow rate ye fluid, zvichireva kuti pane zvinhu zvakamiswa zvakaita sema bubbles ne solid particles mumvura kuti zviratidze ultrasonic beam.
Mvura inoshanda
Nzira yekusiyanisa nguva: yakakodzera kuyerwa kwetsvina yakachena, shoma yemvura, senge mafuta asina kucheneswa, mafuta anorema, mvura yakachena, mvura isina ion, makemikari anonyungudutsa, nezvimwewo, kana mvura yacho iine huwandu hwakawanda hwemabubbles kana tsvina yakasimba, ichakanganisa kupararira kwemafungu e ultrasonic, zvichikanganisa kurongeka kwekuyera.
Nzira yeDoppler: inowanzoshandiswa kuyera mvura ine makore ine mabubbles, zvidimbu zvakaoma nezvimwe tsvina, zvakaita setsvina, matope, musanganiswa wemvura yemafuta, nezvimwewo, zvinoshandiswa zvakanyanya mumvura dzechisikigo, kurapwa kwemvura yakasviba mumaindasitiri nedzimwe nzvimbo.
Kururama kwekuyera
Nzira yekusiyanisa nguva: kururama kwacho kwakakwira, kusvika ku ±0.5%, uye kururama kwacho pakuyera kunokanganiswa nekururama kwezvikamu zvemagetsi zvinogadzirisa masaini uye kugadzikana kwekumhanya kweruzha.
Nzira yeDoppler: Kururama kwacho kunowanzova kwakaderera pane nzira yekusiyana kwenguva, kazhinji inenge ±2%, nekuti mhedzisiro yekuyera kwayo inobva pachiratidzo chakapararira chezvikamu zvakamiswa kana mabubbles mumvura, uye kupararira nekufamba kwezvikamu izvi kunogona kunge kusina kuenzana, izvo zvichave nemhedzisiro yakati pakururama kwekuyera.
Zvinodiwa zvepombi
Nzira yekusiyana kwenguva: mamiriro ekuyerera kwemvura mupaipi akanyanya kuomarara, mvura yacho inofanira kunge yakadzikama uye yakafanana, uye chikamu chepombi chakatwasuka chine zvinodiwa, kazhinji kureba kwechikamu chepombi chakatwasuka kumusoro hakusi pasi pegumi remadhayamita echikamu chepombi chakatwasuka pasi hakusi pasi pe5 madhayamita epombi.
Nzira yeDoppler: Zvinodiwa zvechikamu chepaipi hazvina kuomarara, nzvimbo yekuisa inochinjika zviri nyore, uye maitiro ekuyerera kwepaipi haanyanyi kukanganiswa.
Chimiro cheSensor uye kuiswa kwayo
Nzira yekusiyanisa nguva: peya imwe kana kupfuura yemasensa anowanzo shandiswa, zvichiteerana akaiswa kumusoro nepasi pepombi, uye nzira yekutumira nekugamuchira yesensa inofanirwa kuchengetedza Angle yakati ne axis yepombi kuti ive nechokwadi chekuti nguva yekutumira yechiratidzo che ultrasonic yakayerwa nemazvo. Panguva yekuisa, sensa inofanira kurongeka uye kugadziriswa kuti ive nechokwadi chekuti kugadzikana kwekutumira kwechiratidzo.
Nzira yeDoppler: Kushandiswa kwakajairika kwesensa ine musoro mumwe chete, kusanganisira kutumira nekugamuchira makristaro epiezoelectric, kunogona kuiswa pamadziro ekunze epaipi, kana kuti kunogona kuiswa zvakananga nekubatana nemvura, zviri nyore kuisa, uye hazvizokonzere kukuvara kwepaipi.
Kugona Kudzivisa Kupindira
Nzira yekusiyana kwenguva: zviri nyore kukanganisa kutenderera kwepombi, kuchinja kwekushisa kwemvura uye huwandu hwemvura nezvimwe zvinhu, kutenderera kwepombi kunogona kutungamira mukutsauka kwenzvimbo ye sensor, zvichikanganisa kunyatsoyera, uye shanduko yekupisa nehukuru hwemvura inokonzera shanduko yekumhanya kweruzha, muripo wekupisa uye zvimwe zviyero zvinodiwa kuti kuyera kuve kwakarurama.
Nzira yeDoppler: kugona kwakasimba kwekudzivirira kukanganiswa, kusanzwa kuzununguka kwemapaipi, uye nekuti musimboti wayo wekuyera wakavakirwa pakuchinja kweDoppler frequency, uye tembiricha nehuremu hwemvura hazvina hukama hwakawanda, saka inogona kuramba yakagadzikana mumamiriro ezvinhu akaomarara ekushanda.
Kuyera nzvimbo
Nzira yekusiyana kwenguva: Kuyera kwakafara, kunogona kuyera mwero wekufamba wakaderera kusvika pakuyerera kwakakwirira, kwakakodzera dhayamita dzakasiyana dzemapaipi, asi kune dhayamita huru dzemapaipi, kuyerwa kwemuyero wekufamba kwakakwirira, kunogona kuda simba rekutumira rakawanda uye tekinoroji yakaoma yekugadzirisa masaini.
Nzira yeDoppler: inowanzo shandiswa pakuyera mvura inoyerera zvishoma nezvishoma uye zviri pakati nepakati, yekuyerera kwemvura yakawanda, nekuti hukama huripo pakati peDoppler frequency shift uye flow rate haisi yakarongeka, zvinogona kukonzera kukanganisa kwakanyanya kwekuyera.