Dab tsi yog electrochemical gas sensor?

Dab tsi yog Electrochemical Gas Sensor

Vim li cas thiaj siv Electrochemical Gas Sensor?

Lub electrochemical sensor yog ib qho tseem ceeb ntawm cov khoomgas sensor. Electrochemistry feem ntau yog hais txog nws txoj haujlwm ua haujlwm.

Nws ua haujlwm los ntawm kev tsim cov tshuaj tiv thaiv nrog cov roj ntsuas thiab tsim hluav taws xob teeb liab proportional rau cov roj concentration.

Feem ntau electrochemical gas sensors yog nyob rau hauv diffusion hom, thiab cov pa roj qauv molecules nyob rau hauv ib puag ncig ib puag ncig ib txwm ntws los ntawm cov me me qhov nyob rau hauv pem hauv ntej ntawm lub sensor nkag mus rau lub sensor. Qee cov cuab yeej yuav muaj lub twj tso kua mis los kos cov qauv huab cua thiab roj rau hauv lub sensor, thiab tom qab ntawd saib xyuas nws.

Txhawm rau kom tsis txhob muaj kev cuam tshuam, kom ntseeg tau qhov tseeb ntawm kev saib xyuas, nyob rau hauv qhov pores ntawm Hoi feem nrog roj-permeable membrane barrier rau dej vapor, thiab lwm yam impurities rau hauv lub sensor. Kev ntsuas ntau thiab rhiab heev ntawm lub sensor tuaj yeem hloov pauv los ntawm kev kho qhov loj ntawm cov cua nkag thaum tsim.

Lub qhov cua loj tuaj yeem txhim kho qhov rhiab heev thiab kev daws teeb meem ntawm lub sensor, thaum lub tshuab cua me me tuaj yeem txo qhov rhiab heev thiab kev daws teeb meem, tab sis nce qhov ntsuas ntau.

Sim Electrochemical Gas Sensor los ntawm HENGKO Manufacture

Tam sim no, electrochemical sensors tau siv dav hauv kev nyab xeeb khoom noj, tshuaj lom neeg, tshuaj lom neeg lub neej, kev saib xyuas ib puag ncig, thiab lwm yam. Electrochemical sensors tuaj yeem ntes ozone, formaldehyde, carbon monoxide, ammonia, hydrogen sulfide, sulfur dioxide, nitrogen dioxide, oxygen thiab lwm yam roj. . HENGKO muaj ntau yam electrochemical sensors, xws li oxygen sensors, hydrogen sulfide sensors, carbon monoxide sensors, ammonia sensors, carbon dioxide sensors, thiab lwm yam.

Ntxiv rau, muajtawg-pov thawj discs, gas sensor ua pa plhaub,Gas sensor modules, roj sensor sojntsuam, gas detectorsuab thiab lub teeb tswb Cheebtsam, roj transmitter modules, roj sensor tswb accessories, thiab lwm yam. kom tau raws li cov kev xav tau ntawm txawv industries.

Qhov zoo tshaj plaws electrochemical sensor yog lub sensor uas kuaj pom oxygen. Tom qab tag nrho, qhov ntxov tshaj plaws electrochemical sensor yog thawj zaug siv rau kev soj ntsuam oxygen. Nws muaj kev xaiv zoo, kev ntseeg siab thiab lub neej ntev. Lwm cov electrochemical sensors raug cuam tshuam los ntawm lwm cov pa roj. Cov ntaub ntawv cuam tshuam yog suav nrog cov roj tsawg tsawg.

Hauv kev siv tswv yim, kev cuam tshuam kev cuam tshuam yuav siab heev, uas tuaj yeem ua rau kev nyeem ntawv tsis tseeb lossis ceeb toom tsis tseeb. Hengge explosion-proof high-precision anti-interference industrial oxygen sensor, kev ua haujlwm zoo, ruaj khov thiab txhim khu kev lag luam, ruaj khov thiab txij nkawm, kev ua haujlwm yooj yim, muaj zog tiv thaiv kev cuam tshuam, ntau yam: 0-30% VOL, raug: ± 3% (FS ), rov ua haujlwm: ≤ 2%, daws teeb meem: 1% VOL, lub sijhawm teb: ≤ 30 vib nas this, qib tiv thaiv tuaj yeem ncav cuag IP65 , IP66 .

Electrochemical sensorsmuaj tsawg heev uas yuav tsum tau rau kev khiav hauj lwm hwj chim, thiab ntawm tag nrho cov hom ntawm cov pa sensors, nws lub hwj chim noj yog tsawg tshaj plaws. Yog li ntawd, qhov no sensor yog dav siv nyob rau hauv tsawg qhov chaw. Feem ntau hais lus, lub neej expectancy ntawm electrochemical sensors yog 1-3 xyoo. Txawm li cas los xij, lub neej expectancy ntawm lub sensor feem ntau nyob ntawm ib puag ncig muaj kuab paug, kub thiab av noo uas nws raug. Yog li ntawd, tsis tu ncua kev tshawb nrhiav thiab kev saib xyuas ntawm electrochemical sensors yog cov kev ntsuas zoo kom ntev lawv lub neej.

Koj puas paub Yuav Ua Li Cas Electrochemical Sensor Ua Haujlwm?

Rau cov lus nug no, ua ntej peb yuav tsum paub qee cov ntaub ntawv yooj yim xws li lub hauv paus ntsiab lus, cov khoom, cov kauj ruam ua haujlwm

kuj yuav tsum paub qee yam nrov ntawm electrochemical sensors. ces cia saib cov ntsiab lus raws li hauv qab no:

Electrochemical sensors tau dav siv los kuaj xyuas thiab ntsuas ntau yam tshuaj lom neeg los ntawm kev siv cov qauv ntawm electrochemistry. Nov yog cov ntsiab lus dav dav ntawm lawv ua haujlwm li cas:

1. Txoj Cai Tseem Ceeb:

Electrochemical sensors ua haujlwm los ntawm kev ntsuas qhov hluav taws xob muaj peev xwm lossis tam sim no uas tshwm sim vim muaj tshuaj lom neeg cov tshuaj tiv thaiv ntawm qhov chaw electrode.

2. Cov Ntsiab Cai:

* Ua Haujlwm Electrode (WE): Qhov no yog qhov uas cov tshuaj tiv thaiv electrochemical ntawm kev txaus siab tshwm sim. Cov khoom siv thiab cov khoom saum npoo ntawm cov electrode no yog qhov tseem ceeb rau kev ua haujlwm sensor.
* Siv Electrode (RE): Nws muab cov ntaub ntawv siv tau ruaj khov tiv thaiv qhov ua haujlwm electrode lub peev xwm ntsuas.
* Counter Electrode (CE lossis Auxiliary Electrode): Nws ua tiav cov hluav taws xob hluav taws xob, tso cai rau tam sim no los ntawm kev ua haujlwm thiab txee electrodes.
* Electrolyte: Ib qho nruab nrab uas pab txhawb kev txav ntawm ions thiab txhawb cov tshuaj tiv thaiv electrochemical ntawm cov electrodes.

3. Cov kauj ruam ua haujlwm:

* Tawm rau Analyte: Thaum lub hom phiaj molecule (los yog analyte) raug rau cov electrode ua hauj lwm, nws undergoes ib tug electrochemical cov tshuaj tiv thaiv - nws yog oxidized (loses electrons) los yog txo (tau electrons).
* Kev hloov hluav taws xob: Cov tshuaj tiv thaiv hluav taws xob no cuam tshuam nrog kev hloov hluav taws xob ntawm cov tshuaj ntsuam xyuas thiab cov electrode, tsim cov teeb liab ntsuas hluav taws xob.
* Kev ntsuas hluav taws xob: Cov teeb liab tsim hluav taws xob (txawm tias muaj qhov sib txawv lossis qhov tam sim no) yog tom qab ntsuas qhov ruaj khov siv los ntawm kev siv electrode.
* Kev txhais cov ntaub ntawv: Qhov loj ntawm lub teeb liab hluav taws xob no ncaj qha cuam tshuam rau qhov concentration ntawm cov tshuaj ntsuam xyuas. Los ntawm kev sib piv cov teeb liab mus rau lub calibration nkhaus los yog siv paub tus cwj pwm ntawm tus analyte, nws concentration yuav txiav txim tau.

4. Hom Electrochemical Sensors:

* Potentiometric Sensors: Ntsuas qhov sib txawv ntawm qhov ua haujlwm thiab siv electrodes. pH meters yog ib qho piv txwv.
* Amperometric Sensors: Ntsuas qhov tam sim no tshwm sim los ntawm cov tshuaj tiv thaiv electrochemical ntawm cov tshuaj ntsuam xyuas ntawm cov electrode ua haujlwm. Glucose meters feem ntau siv amperometric sensors.
* Impedimetric Sensors: Ntsuas qhov impedance lossis tsis kam hloov hauv electrochemical cell thaum muaj kev cuam tshuam nrog cov tshuaj ntsuam xyuas.
* Conductometric Sensors: Ntsuas qhov kev hloov pauv ntawm cov tshuaj electrolyte thaum muaj kev cuam tshuam nrog cov tshuaj ntsuam xyuas.

5. Qhov zoo ntawm Electrochemical Sensors:

* High rhiab heev thiab selectivity.
* Lub sijhawm teb ceev ceev.
* Muaj peev xwm ua haujlwm hauv cov theem ua kua thiab roj.
* Muaj peev xwm ua haujlwm hauv turbid lossis xim xim.
* Feem ntau portable thiab haum rau kev soj ntsuam lub sijhawm.

6. Kev txwv:

* Cov sensors tuaj yeem ua fouled lossis lom los ntawm cov khoom paug, cuam tshuam rau lawv txoj haujlwm.
* Drift nyob rau hauv cov ntaub ntawv siv electrode muaj peev xwm ua rau yuam kev.
* Qee qhov yuav tsum tau calibration ib ntus kom tswj tau qhov tseeb.

Zuag qhia tag nrho, kev ua haujlwm ntawm electrochemical sensors nyob ntawm qhov tsim tshwj xeeb, cov ntaub ntawv siv, thiab qhov xwm txheej ntawm cov tshuaj tiv thaiv electrochemical ntawm lub hom phiaj ntsuas. Lawv cov kev siv ntau yam nthuav tawm los ntawm kev saib xyuas ib puag ncig thiab kev kuaj mob kho mob mus rau kev lees paub zaub mov zoo thiab dhau mus.