Cov yam ntxwv thiab ntsuas txoj cai ntawm acid-base concentration meter
Txoj kev tshawb nrhiav tsis sib cuag hauv paus tshem tawm cov kev xeb, kev ua qias tuaj thiab polarization los ntawm cov xov xwm muaj zog corrosive ntawm electrodes.
Qhov zaus hloov pauv excitation fais fab mov thiab resonant Circuit Court thiab nws cov cim teeb liab qauv qauv yog siv los hloov ib zaus excitation txoj kev, thiaj li hais tias cov zis voltage ntawm lub transformer nrhiav tau ntau pua zaus. Lub ndlwg-los ntawm lub sensor txais cov qauv qis-kub sib nqus thiab ferromagnetic shielding, thiab tsis muaj zero-point drift tshwm sim, uas zoo heev txhim kho qhov raug, rhiab heev thiab stability ntawm lub ntsuas.
Lub plhaub taum tag nrho cov yas kaw tau tuaj yeem siv tau ntev hauv qhov chaw hnyav xws li av noo, plua plav thiab corrosion.
Siv lub microcontroller (MCU) thiab ib qho kev sib txuas sib txuas sib txuas ua ke, qhov tso zis hluav taws xob ntawm qhov ntsuas hluav taws xob thiab cov zis tam sim no ntawm lub ntsuas kub ntsuas tau ua tiav digitally qauv, suav, thiab tso tawm, thiab nws tuaj yeem paub qhov kub-precision kub them, cov zaub hauv zos. thiab tej thaj chaw deb kis tau tus nqi concentration. tawm
(4-20) mA tus qauv teeb liab tso zis, uas tuaj yeem txuas tau yooj yim rau ntau yam khoom siv thiab hloov kho cov cuab yeej thiab khoos phis tawj, thiab cov neeg siv kuj tuaj yeem xaiv (0-10) mA lossis (0-20) mA tso zis hom
Ntsuas lub hauv paus ntsiab lus ntawm acid-base concentration meter:
Kev ntsuas lub hauv paus ntsiab lus: Lub ntsuas hluav taws xob siv lub ntsuas hluav taws xob ntsuas hluav taws xob rau kev ntsuas (cov khoom siv electrode yog platinum), txhawm rau kom tsis txhob electrode polarization, lub ntsuas hluav taws xob tsim hluav taws xob muaj zog sine yoj teeb liab thiab ntxiv rau cov electrode, tam sim no ntws los ntawm lub ntsuas hluav taws xob. electrode muaj feem xyuam rau cov concentration ntawm cov ntsuas ntsuas nyob rau hauv kev faib ua feem, tam sim no ntws los ntawm lub electrode yog ntsuas los ntawm lub preamplifier thiab hloov mus rau hauv ib tug voltage teeb liab, thiab lub voltage teeb liab qhia txog tus concentration tus nqi yog tau tom qab kev pab cuam tswj amplification, theem- rhiab nrhiav thiab lim; lub microprocessor hloov cov teeb liab kub thiab cov teeb liab concentration Alternate sampling, tom qab ua hauj lwm thiab kub them nyiaj ua hauj lwm, hloov dua siab tshiab thiab tso tawm kom pom raws li qhov ntsuas concentration tus nqi thiab real-time kub tus nqi ntawm 25 degree.
Lub hauv paus ntsiab lus ntawm kev them nyiaj kub tsis siv neeg: qhov concentration ntawm cov tshuaj ntsuas tsis yog-linearly proportional rau nws cov conductivity, thiab cov conductivity ntawm cov tshuaj hloov vim qhov kub thiab txias, thiab qhov kub thiab txias yuav tsum tau them. Cov yam ntxwv kub ntawm ntau yam kev daws teeb meem sib txawv, thiab nws yog ua los ntawm microprocessor. Cov txheej txheem cuam tshuam tau nrawm thiab raug, paub txog kev ua haujlwm ntawm kev siv nyiaj kub tsis siv neeg.
