Nhau - Nheyo uye Basa reVanogadzirisa Tembiricha ye pH Meters uye Conductivity Meters

https://www.boquinstruments.com/ph8012-industrial-waste-water-ph-sensor-product/

mamita epHuyemita dzekufambisa mafambiro emhepoZvishandiso zvekuongorora zvinoshandiswa zvakanyanya mukutsvagisa kwesainzi, kutarisa zvakatipoteredza, uye maitiro ekugadzira maindasitiri. Kushanda kwazvo nemazvo uye kusimbiswa kwemetrological kunoenderana zvakanyanya nemhinduro dzekutarisa dzinoshandiswa. Kukosha kwepH uye kufambisa magetsi kwemhinduro idzi zvinokanganiswa zvakanyanya nekusiyana kwetembiricha. Sezvo tembiricha ichichinja, ma parameter ese ari maviri anoratidza mhinduro dzakasiyana, izvo zvinogona kukanganisa kunyatsojeka kwekuyera. Munguva yekuongororwa kwemetrological, zvakaonekwa kuti kushandiswa zvisina kunaka kwezvinogadzirisa tembiricha muzvishandiso izvi kunotungamira mukusiyana kukuru mumhedzisiro yekuyera. Uyezve, vamwe vashandisi havanzwisise misimboti iri pasi pekubhadhara tembiricha kana kuti vanokundikana kuona mutsauko uripo pakati pepH nemamita ekufambisa, zvichikonzera kushandiswa zvisirizvo uye data risingavimbike. Naizvozvo, kunzwisisa kwakajeka kwemisimboti uye musiyano uripo pakati penzira dzekubhadhara tembiricha dzezvishandiso izvi zviviri kwakakosha pakuona kuti kuyera kwakarurama.

I. Nheyo uye Mashandiro eVanopa Tembiricha

1. Kuripwa kwekupisa mu pH metres
Mukugadzirisa uye kushandisa pH metres, kuyerwa kusina kururama kunowanzo konzerwa nekushandiswa zvisina kunaka kwetembiricha inokwana. Basa guru re pH meter inokwana nderekugadzirisa mhinduro yeelectrode zvichienderana neNernst equation, zvichiita kuti pave nekuongorora kwakarurama pH yemhinduro patembiricha iripo.

Musiyano unowanikwa (mu mV) unobva mugadziriro yeelectrode yekuyera unoramba uripo pasinei nekupisa; zvisinei, kunzwisiswa kwemhinduro ye pH—kureva, shanduko ye voltage pa unit pH—kunosiyana nekupisa. Nernst equation inotsanangura hukama uhwu, ichiratidza kuti slope yemhinduro ye electrode inowedzera nekupisa kuri kukwira. Kana tembiricha inogadziriswa, chishandiso chinogadzirisa conversion factor zvinoenderana, zvichiita kuti pH inoratidzwa ienderane netembiricha chaiyo yemhinduro. Pasina tembiricha yakakwana, pH yakayerwa inoratidza tembiricha yakayerwa pane tembiricha yemuenzaniso, zvichikonzera zvikanganiso. Saka, tembiricha inobvumidza kuyerwa kwe pH kwakavimbika mumamiriro akasiyana ekupisa.

Muchina weKuongorora Mvura Inoraswa Mumaindasitiri (PH Analyzer)

2. Kubhadhariswa kweTembiricha muMamita eKufambisa Makomputa
Kufambiswa kwemagetsi kunoenderana nehuwandu hweionization ye electrolytes uye kufamba kwema ions mumushonga, zvese izvi zvinoenderana nekupisa. Sezvo tembiricha ichiwedzera, kufamba kwema ionic kunowedzera, zvichikonzera kuwanda kwe conductivity; zvakasiyana, tembiricha yakaderera inoderedza conductivity. Nekuda kwekuvimba uku kwakasimba, kuenzanisa zvakananga kuyerwa kwe conductivity kunotorwa patembiricha dzakasiyana hakuna zvakunoreva pasina standardization.

Kuti zvive nechokwadi chekuenzana, kuverenga kwe conductivity kunowanzo taridzwa ku tembiricha yakajairwa—inowanzo 25 °C. Kana tembiricha inodzikisa tembiricha yakadzimwa, chishandiso chinoshuma conductivity pa tembiricha chaiyo yemhinduro. Muzviitiko zvakadaro, kugadzirisa nemaoko uchishandisa coefficient yakakodzera yetembiricha (β) kunofanirwa kushandiswa kushandura mhedzisiro kuita tembiricha yereferensi. Zvisinei, kana tembiricha inodzikisa tembiricha yagoneswa, chishandiso chinozviita otomatiki shanduko iyi zvichibva pane coefficient yetembiricha yakafanotaurwa kana inogadziriswa nemushandisi. Izvi zvinogonesa kuenzanisa kwakafanana mumasampuli uye zvinotsigira kutevedzera mitemo yekudzora yakatarwa neindasitiri. Zvichienderana nekukosha kwayo, mita dzemazuva ano dze conductivity dzinenge dzakazara dzinosanganisira mashandiro e conductivity yetembiricha, uye maitiro ekuongorora metrological anofanirwa kusanganisira kuongorora kwechinhu ichi.

Sensor yeMarara eMaindasitiri eKufambisa Mvura

II. Kufunga Nezvekushanda kwe pH uye Conductivity Meters neTembiricha Compensation

1. Nhungamiro dzekushandisa pH Meter Temperature Compensators
Sezvo chiratidzo chemV chakayerwa chisingasiyane nekupisa, basa remugadziri wekupisa nderekugadzirisa slope (conversion coefficient K) yemhinduro ye electrode kuti ienderane nekupisa kwazvino. Saka, zvakakosha kuve nechokwadi chekuti kupisa kwemhinduro dzebuffer dzinoshandiswa panguva yekuenzanisa kunoenderana nekwemuenzaniso uri kuenzaniswa, kana kuti kuenzaniswa kwekupisa kwakarurama kunoshandiswa. Kukundikana kuita izvi kunogona kukonzera zvikanganiso zvakarongwa, kunyanya kana uchiyera sampuli dziri kure nekupisa kwekuenzanisa.

2. Nhungamiro dzekushandisa Conductivity Meter Temperature Compensators
Chiyero chekugadzirisa tembiricha (β) chinoita basa rakakosha mukushandura mafambiro emhepo akayerwa kuita tembiricha yekutarisa. Mhinduro dzakasiyana dzinoratidza β dzakasiyana—semuenzaniso, mvura dzechisikigo dzinowanzova neβ inosvika 2.0–2.5 %/°C, nepo acids kana mabhesi akasimba anogona kusiyana zvakanyanya. Zvishandiso zvine ma coefficients ekugadzirisa akagadzika (semuenzaniso, 2.0 %/°C) zvinogona kukonzera zvikanganiso pakuyera mhinduro dzisiri dzemhando yepamusoro. Kune mashandisirwo akanyatsojeka, kana coefficient yakavakirwa mukati isingakwanise kugadziriswa kuti ienderane neβ chaiyo yemhinduro, zvinokurudzirwa kudzima basa rekugadzirisa tembiricha. Pane kudaro, yera tembiricha yemhinduro nemazvo uye ita kugadzirisa nemaoko, kana kuchengetedza sample pa25 °C chaiyo panguva yekuyera kuti usade kubhadharwa.

III. Nzira dzeKukurumidza dzeKuongorora Matambudziko muZvinokonzera Tembiricha

1. Nzira Yekukurumidza Yekuongorora pH Meter Tembiricha Compensators
Kutanga, gadzirisa pH meter uchishandisa mhinduro mbiri dze buffer kuti uone slope chaiyo. Wobva wayera mhinduro yechitatu yakasimbiswa pasi pemamiriro ezvinhu akabhadharwa (nekubhadharwa kwekupisa kwakabvumidzwa). Enzanisa kuverenga kwakawanikwa ne pH inotarisirwa patembiricha chaiyo yemhinduro, sezvakatsanangurwa mu "Verification Regulation ye pH Meters." Kana kutsauka kukadarika kukanganisa kwakanyanya kunobvumirwa kwekirasi yekururama kwechishandiso, tembiricha inogona kunge isiri kushanda zvakanaka uye inoda kuongororwa nenyanzvi.

2. Nzira Yekukurumidza Yekutarisa Yekutsinhanisa Tembiricha yeConductivity Meter
Yera conductivity uye tembiricha yemhinduro yakagadzikana uchishandisa mita ye conductivity ine tembiricha yakabatidzwa. Nyora kukosha kwe conductivity kwakabhadharwa kwakaratidzwa. Zvadaro, dzima conductivity yetembiricha uye nyora conductivity isina kubikwa patembiricha chaiyo. Uchishandisa coefficient inozivikanwa yetembiricha yemhinduro, verenga conductivity inotarisirwa patembiricha yereferensi (25 °C). Enzanisa kukosha kwakaverengerwa nekuverenga kwakabhadharwa kwechishandiso. Kusiyana kukuru kunoratidza kukanganisa kunogona kuitika mu algorithm ye conductivity yetembiricha kana sensor, zvichiita kuti zviome kuongororwa ne laboratory ye metrology yakabvumidzwa.

Mukupedzisa, mabasa ekubhadharisa tembiricha muma pH metres nema conductivity metres anoshanda zvakasiyana zvachose. Mu pH metres, conductivity inogadzirisa reaction sensitivity ye electrode kuti iratidze mhedzisiro yetembiricha yenguva chaiyo zvichienderana neNernst equation. Mu conductivity metres, conductivity inoita kuti kuverenga kuve kwakajairika kune reference tembiricha kuti zvigone kuenzanisa cross-sample. Kuvhiringidza nzira idzi kunogona kutungamira mukududzira kusina kunaka uye kunaka kwedata kwakakanganisika. Kunzwisisa kwakakwana kwenheyo dzadzo kunovimbisa kuyerwa kwakarurama uye kwakavimbika. Pamusoro pezvo, nzira dzekuongorora dzakatsanangurwa pamusoro dzinobvumira vashandisi kuita ongororo dzekutanga dze compensator performance. Kana paine zvisina kunaka zvikaonekwa, kutumirwa kwechishandiso nekukurumidza kuti chiongororwe che metrological verification kunokurudzirwa zvikuru.

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Nguva yekutumira: Zvita-10-2025