Qhov teeb meem ntawm lub ntsuas dej ntws ultrasonic sensor attenuation yuav tshwm sim los ntawm cov laj thawj hauv qab no, thiab tuaj yeem siv cov kev daws teeb meem sib xws: Ua ntej, qhov laj thawj tsom xam ntawm cov yam ntxwv ntawm cov kua dej: muaj cov npuas lossis cov khoom tsis huv: thaum cov kua dej muaj ntau cov npuas lossis cov khoom tsis huv, lub teeb liab ultrasonic yuav tawg thiab nqus tau, ua rau lub teeb liab attenuation. Piv txwv li, hauv qee cov txheej txheem kev lag luam, cov kua dej yuav sib xyaw nrog huab cua los ua cov npuas, lossis muaj cov khoom tsis huv xws li cov khoom khov. Kev hloov pauv viscosity: Thaum lub viscosity ntawm cov kua dej siab, nws yuav tsim kev tiv thaiv ntau dua rau kev nthuav dav ntawm lub nthwv dej ultrasonic, uas ua rau qeeb qeeb qhov ceev ntawm lub teeb liab thiab ua rau lub zog attenuation nce ntxiv. Piv txwv li, thaum ntsuas cov roj viscosity siab lossis cov khoom siv tshuaj lom neeg, qhov teeb meem attenuation yooj yim tshwm sim. Teeb meem kev teeb tsa sensor: Qhov chaw teeb tsa tsis raug: Yog tias lub sensor tau teeb tsa hauv lub luj tshib ntawm cov kav dej, ze ntawm lub valve lossis hauv thaj chaw ntawm kev ntws tsis ruaj khov, nws yuav raug cuam tshuam los ntawm cov kua dej turbulence thiab eddy tam sim no, ua rau lub teeb liab attenuation. Piv txwv li, cov kua dej ntws ze ntawm lub luj tshib yog qhov nyuaj, thiab lub teeb liab ultrasonic yog qhov cuam tshuam rau kev cuam tshuam thaum lub sijhawm nthuav dav. Kev sib txuas tsis zoo: Rau cov sensors sab nraud clamped, qhov zoo thiab kev sib xws ntawm tus neeg sawv cev sib txuas yuav cuam tshuam rau qhov cuam tshuam ntawm kev sib txuas ntawm lub sensor thiab cov yeeb nkab. Yog tias lub coupler tsis siv sib npaug lossis qhov zoo tsis zoo, nws yuav ua rau poob loj ntawm lub teeb liab thaum lub sijhawm xa mus. Cov xwm txheej ntawm cov yeeb nkab: Cov khoom siv yeeb nkab: Cov khoom sib txawv ntawm cov yeeb nkab muaj cov teebmeem sib txawv ntawm cov yam ntxwv ntawm cov nthwv dej ultrasonic. Piv txwv li, qhov acoustic impedance ntawm cov yeeb nkab hlau thiab cov yeeb nkab yas yog txawv, uas yuav ua rau qhov kev xav thiab kev cuam tshuam ntawm cov nthwv dej ultrasonic hauv cov txheej txheem sib kis kom sib txawv, yog li cuam tshuam rau lub zog ntawm lub teeb liab. Cov xwm txheej ntawm phab ntsa sab hauv ntawm cov yeeb nkab: phab ntsa sab hauv ntawm cov yeeb nkab yog ntxhib, scaled lossis corroded, uas yuav tawg thiab lwj lub teeb liab ultrasonic thaum nws raug cuam tshuam rau hauv phab ntsa sab hauv ntawm cov yeeb nkab. Kev siv ntev ntawm phab ntsa sab hauv ntawm cov yeeb nkab yuav khaws cov av qias neeg, cuam tshuam rau kev sib kis teeb liab. Cov yam ntxwv ib puag ncig Kev cuam tshuam: Kev hloov pauv kub: Kev hloov pauv kub tuaj yeem cuam tshuam rau cov khoom siv lub cev ntawm cov kua dej thiab qhov ceev ntawm cov nthwv dej ultrasonic, uas yuav ua rau lub teeb liab attenuation. Hauv qee qhov chaw kub siab lossis qis, qhov cuam tshuam yog qhov pom tseeb dua. Kev cuam tshuam ntawm electromagnetic: Lub zog hluav taws xob nyob ib puag ncig yuav cuam tshuam rau lub teeb liab ntawm lub ultrasonic flowmeter, ua rau muaj teeb liab attenuation lossis distortion. Piv txwv li, nyob ze ntawm cov motors loj, transformers thiab lwm yam khoom siv, yooj yim rau electromagnetic cuam tshuam. Qhov thib ob, kev daws teeb meem rau cov yam ntxwv ntawm cov kua: kev teeb tsa cov khoom siv degassing: rau cov kua uas muaj npuas, koj tuaj yeem teeb tsa cov khoom siv degassing ntawm cov kav dej, xws li cov roj-kua sib cais, kom txo cov ntsiab lus ntawm cov npuas hauv cov kua thiab txo cov teeb liab attenuation. Piv txwv li, hauv qee cov txheej txheem tsim tshuaj lom neeg, qhov tseeb ntawm kev ntsuas ntawm ultrasonic flowmeters tuaj yeem txhim kho tau zoo los ntawm kev teeb tsa cov khoom siv degassing. Lim cov khoom tsis huv: Rau cov kua uas muaj cov khoom tsis huv, cov lim tuaj yeem teeb tsa kom tshem tawm cov khoom tsis huv xws li cov khoom khov hauv cov kua thiab txo qhov tawg thiab kev nqus ntawm cov teeb liab. Xaiv hom lim thiab kev lim kom raug raws li qhov xwm txheej ntawm cov kua thiab qhov loj ntawm cov khoom tsis huv. Kho cov kev ntsuas ntsuas: yog tias qhov viscosity ntawm cov kua hloov pauv ntau heev, cov kev ntsuas ntsuas ntawm lub ultrasonic flowmeter tuaj yeem hloov kho raws li qhov xwm txheej tiag tiag, xws li zaus, qhov nce, thiab lwm yam, kom hloov kho rau cov kua nrog viscosity sib txawv thiab txo cov teeb liab attenuation. Txhim kho kev teeb tsa sensor: Txhim kho qhov chaw teeb tsa: Nruab lub sensor rau hauv qhov chaw uas qhov ncaj ntawm cov kav dej ntev thiab qhov ntws ruaj khov, zam cov chaw cuam tshuam xws li lub luj tshib thiab cov li qub. Feem ntau, qhov ntev ntawm qhov ncaj ntawm cov kav dej yuav tsum muaj tsawg kawg yog 10 npaug ntawm qhov txoj kab uas hla ntawm cov kav dej, thiab qhov ntev ntawm qhov ncaj ntawm cov kav dej yuav tsum muaj tsawg kawg yog 5 npaug ntawm qhov txoj kab uas hla ntawm cov kav dej. Xyuas kom muaj kev sib txuas zoo: Rau cov sensors clamped sab nraud, siv cov neeg sawv cev sib txuas zoo thiab xyuas kom meej tias muaj kev siv sib xws. Thaum teeb tsa lub sensor, nws yog qhov tsim nyog los ua haujlwm kom raug raws li qhov yuav tsum tau ua ntawm phau ntawv qhia kom ntseeg tau tias lub sensor thiab cov kav dej tau nruj nreem tsis muaj qhov sib txawv ntawm huab cua. Xav txog cov xwm txheej ntawm cov kav dej: Xaiv cov khoom siv kav dej kom raug: hauv lub sijhawm ntws ultrasonic, raws li qhov xwm txheej thov tiag tiag los xaiv cov khoom siv kav dej uas muaj kev cuam tshuam tsawg dua rau kev nthuav dav ultrasonic. Piv txwv li, rau qee qhov kev ntsuas siab, koj tuaj yeem xaiv cov yeeb nkab hlau uas muaj qhov zoo dua acoustic impedance thiab cov kua sib phim. Ntxuav phab ntsa sab hauv ntawm cov kav dej: tsis tu ncua ntxuav thiab tswj cov kav dej, tshem tawm cov av qias neeg, nplai thiab xeb ntawm phab ntsa sab hauv, xyuas kom du thiab du ntawm phab ntsa sab hauv ntawm cov kav dej, thiab txo qhov teeb liab attenuation. Kev ntxuav tshuaj, kev ntxuav tshuab thiab lwm txoj hauv kev tuaj yeem siv. Txo qhov cuam tshuam ib puag ncig: kev them nyiaj kub: Rau cov chaw muaj kev hloov pauv kub loj, koj tuaj yeem siv lub ultrasonic flowmeter nrog lub luag haujlwm them nyiaj kub, lossis teeb tsa lub sensor kub kom ua tiav qhov kub thiab txias tiag tiag ntawm cov txiaj ntsig ntsuas thiab txo qhov cuam tshuam ntawm qhov kub thiab txias ntawm lub teeb liab. Kev tiv thaiv electromagnetic cuam tshuam: Ua cov kev ntsuas tiv thaiv, xws li siv cov xov hlau tiv thaiv los txuas cov sensors thiab converters, teeb tsa lub flow meter deb ntawm qhov chaw ntawm electromagnetic cuam tshuam, lossis teeb tsa electromagnetic shielding npog, thiab lwm yam, kom txo qhov cuam tshuam ntawm electromagnetic cuam tshuam ntawm lub teeb liab.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-03-2024