Cov khoom xa tawm theem, tseem hu ua cov khoom ntsuas theem, yog cov khoom siv tseem ceeb uas siv los ntsuas qhov siab ntawm cov kua, cov khoom siv slurries, lossis cov khoom khov hauv cov thoob dej, cov hlab dej, thiab cov pas dej thoob plaws hauv kev lag luam. Kev saib xyuas theem kom raug yog qhov tseem ceeb rau kev tswj cov txheej txheem, kev tswj cov khoom muag, kev nyab xeeb, thiab kev ua haujlwm zoo. Txij li cov chaw ua roj thiab cov chaw tsim tshuaj mus rau cov chaw kho dej thiab cov chaw ua zaub mov, cov khoom xa tawm theem ua haujlwm ua tus txha nqaj qaum ntawm cov kab ke hauv kev lag luam thiab hauv nroog, ua rau muaj kev txiav txim siab raws li cov ntaub ntawv thiab tiv thaiv kev phom sij ntawm kev ua haujlwm.
Cov khoom siv ntsuas theem tau muab faib ua ntau hom raws li lawv cov hauv paus ntsiab lus ua haujlwm, txhua yam tau tsim los rau cov kev xav tau tshwj xeeb ntawm daim ntawv thov. Cov hom feem ntau suav nrog ultrasonic, radar, hydrostatic (raws li siab), capacitive, thiab float-type transmitters. Ultrasonic thiab radar transmitters yog cov khoom siv tsis sib cuag, zoo tagnrho rau cov chaw nyuaj lossis corrosive uas tsis xav tau kev sib cuag ncaj qha nrog cov khoom siv. Hydrostatic thiab capacitive transmitters ua haujlwm los ntawm kev sib cuag nrog cov khoom siv, muab kev ntsuas siab rau cov kua dej, thaum cov khoom siv ntab yog cov nqi tsim nyog rau cov ntawv thov yooj yim, qis-siab.
Cov khoom siv xa mus rau theem uas tsis sib cuag, xws li cov qauv ultrasonic thiab radar, siv cov thev naus laus zis siab heev los ntsuas theem yam tsis muaj kev sib cuag lub cev. Cov khoom siv xa mus rau theem ultrasonic tso tawm cov suab nrov siab mus rau qhov chaw nruab nrab; cov nthwv dej uas cuam tshuam tau raug kuaj pom, thiab lub sijhawm ya tau hloov mus ua cov ntaub ntawv theem. Cov khoom siv xa mus rau theem radar siv cov nthwv dej electromagnetic, muab kev ua tau zoo dua hauv cov plua plav, cov pa dej ntau, lossis cov chaw tsis muaj zog, vim tias lawv tsis cuam tshuam los ntawm qhov kub thiab txias, siab, lossis cov khoom nruab nrab. Cov hom no siv dav hauv cov thoob dej khaws cov tshuaj lom neeg volatile, roj av nyoos, lossis cov khoom khov loj xws li cov nplej thiab thee.
Cov khoom siv sib txuas lus qib siab yog qhov zoo dua rau cov ntawv thov uas xav tau qhov tseeb thiab ruaj khov siab. Cov khoom siv hydrostatic ntsuas qhov siab uas cov kua dej tso tawm, nrog rau qhov siab ncaj qha rau qib (P = ρgh, qhov twg ρ yog qhov nruab nrab, g yog lub ntiajteb txawj nqus, thiab h yog qhov siab ntawm qib). Lawv tsim nyog rau dej, roj, thiab cov slurries hauv cov hlab kaw lossis qhib. Cov khoom siv capacitive ntes tau qhov hloov pauv ntawm capacitance ntawm ob lub electrodes los ntawm kev hloov pauv ntawm qib, ua haujlwm zoo nrog cov kua conductive thiab tsis-conductive, suav nrog cov kua viscous xws li cov nplaum thiab xim.
Qhov ua tau ntau yam ntawm cov khoom xa tawm ua rau lawv tsis tseem ceeb hauv ntau yam kev lag luam. Hauv kev lag luam roj thiab roj av, cov khoom xa tawm radar saib xyuas cov roj nyoos thiab cov khoom lag luam ua tiav hauv cov thoob khib nyiab, ua kom muaj kev nyab xeeb thiab kev taug qab cov khoom muag raug. Cov chaw tsim tshuaj siv cov khoom siv tiv taus corrosion lossis radar transmitters los ntsuas cov tshuaj lom neeg txaus ntshai, tiv thaiv kev xau thiab ua kom ua raws li cov qauv kev nyab xeeb. Cov chaw kho dej vam khom cov khoom xa tawm hydrostatic thiab ultrasonic los tswj cov pas dej thiab cov thoob khib nyiab dej khib nyiab, txhawb nqa cov txheej txheem kho kom zoo.
Kev xaiv lub transmitter theem zoo yuav tsum xav txog cov yam tseem ceeb, suav nrog hom nruab nrab (kua, khoom khov, lossis slurry), kub, siab, viscosity, thiab tej yam ib puag ncig. Piv txwv li, cov transmitters hom ntab tsis haum rau cov kua viscosity siab uas yuav txhaws cov khoom txav mus los, thaum cov transmitters radar zoo tagnrho rau cov tank kub thiab siab. Kev teeb tsa kom zoo, xws li zam kev cuam tshuam uas cuam tshuam rau kev xa cov teeb liab, thiab kev ntsuas tsis tu ncua yog qhov tseem ceeb kom tswj tau qhov tseeb ntawm kev ntsuas thiab kev ntseeg tau ntawm cov khoom siv.
Nrog kev nce qib ntawm thev naus laus zis ntse, cov khoom siv niaj hnub no sib txuas cov txheej txheem sib txuas lus digital (piv txwv li, HART, Modbus, NB-IoT) thiab kev sib txuas huab, ua kom muaj kev saib xyuas deb, kev tshuaj xyuas cov ntaub ntawv tiag tiag, thiab kev txij nkawm kwv yees. Qhov kev ua haujlwm ntse no txo cov nqi ua haujlwm tes, txhim kho kev ua haujlwm zoo, thiab txo qis lub sijhawm tsis ua haujlwm. Raws li kev lag luam txais yuav automation thiab kev tsim khoom ntse, cov khoom siv theem txuas ntxiv mus hloov pauv, ua ib feem tseem ceeb ntawm cov txheej txheem kev lag luam ntse, tsav tsheb kev ruaj khov thiab kev nyab xeeb hauv kev ntsuas qib thoob ntiaj teb.
Lub sijhawm tshaj tawm: Lub Ib Hlis-16-2026