Cov ntsuas dej ntws ultrasonicyog cov cuab yeej tseem ceeb siv los ntsuas qhov ntws ntawm cov kua dej hauv ntau yamcov ntawv thov, xws li cov chaw kho dej, cov kav dej, thiab kev ua tshuaj lom neeg. Cov 'meter' no siv cov nthwv dej ultrasonic los txiav txim siab qhov ceev ntawm cov dej ntws thiab xam tus nqi ntws. Txhawm rau kom muaj zog rau cov 'meter' no thiab xyuas kom lawv ua haujlwm zoo, ntau hom voltage yuav raug siv, tshwj xeebVAC (Volts Alternating Current)thiabVDC (Volts Tam Sim No Ncaj Qha)Tiam sis koj paub li cas thaum twg siv VAC lossis VDC? Tsab xov xwm no yuav piav qhia txog qhov sib txawv ntawm ob hom voltage no thiab coj koj mus rau thaum twg txhua yam haum rau koj lub ultrasonic flow meter.
1. To taub VAC (Alternating Current) thiab VDC (Direct Current)
Ua ntej yuav siv VAC lossis VDC hauv cov ntsuas dej ultrasonic, nws yog ib qho tseem ceeb kom nkag siab txog qhov sib txawv ntawm ob hom hluav taws xob no:
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VAC (Volts Alternating Current)Hauv ib lub voj voog AC, lub zog hluav taws xob hloov pauv lossis thim rov qab ib ntus. Qhov no yog hom hluav taws xob uas muab rau feem ntau cov tsev thiab cov lag luam. Lub zog hluav taws xob hloov pauv ntawm cov voj voog zoo thiab tsis zoo, tsim ib lub waveform uas hloov pauv kev taw qhia tas li.
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VDC (Volts Tam Sim No Ncaj Qha)Hauv ib lub voj voog DC, lub zog hluav taws xob ntws mus rau hauv ib qho kev taw qhia tas mus li. Lub zog hluav taws xob DC feem ntau yog muab los ntawm cov roj teeb lossis cov khoom siv fais fab DC, thiab tam sim no ntws tas mus li hauv ib qho kev taw qhia yam tsis thim rov qab.
2. Thaum Twg Yuav Siv VAC Hauv Ultrasonic Flow Meters
Cov ntsuas dej ntws ultrasonic uas siv VAC feem ntau yog siv rau hauv cov xwm txheej uas lub zog yuav tsum tau txuas nrog lub grid hluav taws xob lossis thaum lub ntsuas dej ntws yog ib feem ntawm lub kaw lus loj dua uas ua haujlwm ntawm AC fais fab. Nov yog qee qhov xwm txheej uas VAC tsim nyog:
2.1Kev Lag Luam thiab Kev Lag Luam Ib puag ncig
Ntau lub tshuab ua lag luam thiab kev lag luam siv lub zog AC rau ntau yam khoom siv, suav nrog cov ntsuas dej ultrasonic. Yog tias lub ntsuas dej yog ib feem ntawm lub tshuab uas ua haujlwm ntawm lub zog AC, xws li hauv lub Hoobkas lossis lub chaw kho dej loj, VAC yog qhov kev xaiv tsim nyog.
2.2Cov Ntawv Thov Muaj Zog Siab
Qee cov ntsuas dej ntws ultrasonic yuav xav tau ntau lub zog los tsav cov khoom ntxiv, xws li cov sensors loj lossis cov transmitters. Hauv cov xwm txheej no, VAC feem ntau siv vim nws muaj peev xwm muab cov qib zog siab dua uas xav tau rau cov kab ke zoo li no.
2.3Kev Xa Hluav Taws Xob Ntev
Hauv cov xwm txheej uas lub ntsuas dej yuav tsum tau nyob deb ntawm qhov chaw muab hluav taws xob, VAC feem ntau ua haujlwm tau zoo dua rau kev xa hluav taws xob mus deb vim tias AC muaj peev xwm mus deb nrog kev poob hluav taws xob tsawg dua.
2.4Kev Sib Tw nrog Grid Power
VAC feem ntau yog siv thaum lub ntsuas dej ntws yuav tsum tau txuas ncaj qha rau lub zog fais fab (piv txwv li, 110V lossis 220V AC). Qhov no yog ib txwm muaj nyob rau hauv cov chaw lag luam lossis lwm qhov chaw uas lub zog AC yog tus qauv.
3. Thaum Twg Yuav Siv VDC Hauv Ultrasonic Flow Meters
Cov ntsuas dej ntws ultrasonic uas siv VDC feem ntau siv rau hauv cov ntawv thov tshwj xeeb, qhov twg lub ntsuas yuav tsum ua haujlwm hauv cov chaw uas muaj cov kev xav tau hluav taws xob tshwj xeeb. VDC feem ntau raug xaiv rau nws qhov ruaj khov thiab kev ntseeg tau hauv cov chaw siv hluav taws xob tsawg thiab cov chaw nqa tau. Nov yog qee qhov xwm txheej uas VDC tsim nyog:
3.1Cov Ntsuas Dej Siv Roj Teeb
Rau cov ntsuas dej ntws ultrasonic uas siv tau rau kev siv hauv thaj teb lossis kev teeb tsa ib ntus, VDC yog qhov kev xaiv zoo tshaj plaws. Cov tshuab siv roj teeb siv hluav taws xob DC los muab lub zog tsim nyog rau kev ua haujlwm. Cov ntsuas no feem ntau siv rau hauv cov ntawv thov xws li:
- Kev soj ntsuam dej zoo hauv cov chaw nyob deb nroog
- Kev ntsuas dej ntws ib ntus hauv kev tsim kho lossis kev kho dua tshiab
3.2Cov Ntawv Thov Qis-Power
Hauv cov ntawv thov uas siv hluav taws xob tsawg uas lub ntsuas dej ultrasonic xav tau siv hluav taws xob tsawg, VDC yog qhov zoo dua. Ntau lub ntsuas dej niaj hnub no tau tsim los kom siv hluav taws xob tau zoo, thiab lub zog DC ua kom lub kaw lus tsuas siv hluav taws xob ntau npaum li qhov xav tau, uas pab ua kom lub roj teeb siv tau ntev thiab txo kev siv hluav taws xob.
3.3Cov Khoom Siv Rhiab Los Yog Cov Khoom Siv Uas Muaj Kev Ntsuas Zoo
VDC ruaj khov dua li VAC, uas txhais tau tias nws zoo dua rau cov khoom siv rhiab heev. Yog tias lub ntsuas dej ultrasonic yog ib feem ntawm lub kaw lus ntsuas qhov tseeb uas qhov kev hloov pauv ntawm lub zog hluav taws xob tuaj yeem cuam tshuam rau kev nyeem ntawv, kev siv VDC ua kom muaj kev ua tau zoo dua thiab raug. Qhov no tseem ceeb heev hauv chav kuaj lossis chaw tshawb fawb.
3.4Cov Tshuab Siv Hluav Taws Xob Los Ntawm Hnub Ci
Ntau lub ntsuas dej ultrasonic nyob rau hauv cov chaw nyob deb lossis tawm ntawm lub network yog siv los ntawm cov vaj huam sib luag hnub ci, uas muab hluav taws xob DC. Cov kab ke no feem ntau siv rau hauv cov chaw saib xyuas dej hauv nroog lossis cov ntawv thov saib xyuas ib puag ncig uas tsis muaj hluav taws xob AC.
4. Cov Yam Tseem Ceeb Yuav Tsum Xav Txog Thaum Xaiv VAC lossis VDC rau Ultrasonic Flow Meters
Thaum txiav txim siab seb puas yuav siv VAC lossis VDC hauv koj lub ultrasonic flow meter teeb tsa, ntau yam yuav tsum tau coj mus rau hauv tus account:
4.1Kev Muaj Fais Fab
- VACYog tias koj qhov chaw twb muaj hluav taws xob AC lossis hluav taws xob hauv network lawm, VAC yog qhov kev xaiv zoo tshaj plaws rau kev muab hluav taws xob tas mus li.
- VDCYog tias koj siv lub tshuab uas siv roj teeb, lossis yog tias koj daim ntawv thov siv tau yooj yim lossis nyob rau hauv qhov chaw deb uas tsis muaj hluav taws xob AC, VDC yog qhov kev xaiv zoo dua.
4.2Cov Kev Xav Tau Fais Fab ntawm Lub Meter
- VACYog tias lub ntsuas dej ultrasonic xav tau lub zog siab dua rau kev ua haujlwm, VAC yuav yog qhov kev xaiv zoo tshaj plaws, tshwj xeeb tshaj yog tias lub kaw lus suav nrog cov khoom sib xyaw ua ke.
- VDCRau cov ntawv thov uas tsis muaj zog lossis thaum xav tau kev siv roj teeb, VDC ua haujlwm tau zoo dua thiab siv tau zoo dua.
4.3Tej Yam Ib puag ncig
- VACYog tias lub ntsuas dej ntws tau teeb tsa rau hauv qhov chaw lag luam lossis chaw ua lag luam nrog cov chaw siv hluav taws xob AC ruaj khov, VAC yog qhov kev xaiv tsim nyog.
- VDCRau sab nraum zoov, tawm ntawm lub network, lossis kev teeb tsa nyob deb, VDC feem ntau yog qhov kev xaiv zoo tshaj plaws, tshwj xeeb tshaj yog tias muaj cov vaj huam sib luag hnub ci lossis roj teeb koom nrog.
4.4Kev Tseeb thiab Kev Ruaj Ntseg
- VACCov tshuab hluav taws xob AC tuaj yeem muaj kev hloov pauv uas yuav cuam tshuam rau kev ua haujlwm ntawm qee hom ultrasonic flow meters.
- VDC: Lub zog DC muab cov hluav taws xob ruaj khov dua, uas yog qhov tseem ceeb rau kev ntsuas qhov ntws kom raug, txhim khu kev qha hauv cov chaw muaj kev cuam tshuam.
5. Xaus lus
Hauv kev xaus, qhov kev xaiv ntawm VAC thiab VDC hauv cov ntsuas dej ultrasonic nyob ntawm qhov xav tau tshwj xeeb ntawm daim ntawv thov. VAC feem ntau yog siv rau hauv kev lag luam lossis kev lag luam uas muaj hluav taws xob AC, thiab lub ntsuas dej yuav tsum ua haujlwm ntawm cov qib hluav taws xob siab dua lossis hla kev deb. Ntawm qhov tod tes, VDC zoo tagnrho rau cov khoom siv nqa tau, cov roj teeb siv hluav taws xob, cov ntawv thov hluav taws xob qis, lossis cov xwm txheej uas qhov ruaj khov ntawm qhov hluav taws xob tseem ceeb.
Kev nkag siab txog koj cov kev xav tau fais fab, qhov chaw, thiab cov kev xav tau ntawm lub ntsuas dej ntws yuav pab koj xaiv hom voltage tsim nyog rau koj lub ntsuas dej ntws ultrasonic, kom ntseeg tau tias muaj kev ntsuas raug thiab txhim khu kev qha.
Lub sijhawm tshaj tawm: Lub Peb Hlis-03-2025