Njengendawo ebalulekile yokutshala izitshalo, ukuchelela kanye nokuphathwa kwezinga lamanzi emasimini e-paddy kudlala indima ebalulekile kwikhwalithi kanye nesivuno sokukhiqizwa kwerayisi. Ngokuthuthuka kwezolimo zesimanje, ukusetshenziswa kahle nokuphathwa kwemithombo yamanzi sekuyinto esemqoka. Imitha yezinga elinamandla kancane kancane isiphenduke inketho ekahle yokuqapha izinga lamanzi ensimini ye-paddy ngenxa yokunemba kwayo okuphezulu, ukuzinza nokuqina. Lesi sihloko sizoxoxa ngesimiso sokusebenza, izinzuzo zohlelo lokusebenza, amacala angokoqobo kanye namathemba okuthuthukiswa kwemitha yezinga le-capacitive yamasimu e-paddy.
1. Isimiso sokusebenza semitha yezinga le-capacitive
Isimiso sokusebenza semitha yezinga le-capacitive sisekelwe ekushintsheni kwe-capacitance. Lapho izinga le-liquid le-liquid medium lishintsha, i-dielectric constant ehambisanayo ye-liquid ithinta i-capacitance ye-capacitor, ngaleyo ndlela ibona ukulinganiswa kwezinga le-liquid. Izinyathelo eziqondile zimi kanje:
Isakhiwo se-Capacitor: Imitha yezinga le-Capacitive ngokuvamile iqukethe ama-electrode amabili, eyodwa yawo i-probe kanti enye ngokuvamile intambo yaphansi noma isitsha ngokwaso.
Ukushintsha okungaguquki kwe-Dielectric: Ukushintsha kwezinga le-liquid kuzodala ukuguqulwa kwendawo phakathi kwama-electrode. Uma izinga le-liquid likhuphuka noma lehla, i-dielectric constant ezungeze i-electrode (njenge-dielectric constant of air ingu-1, futhi i-dielectric constant of water icishe ibe ngu-80) iyashintsha.
Isilinganiso somthamo: Imitha yeleveli ihlale iqapha ukushintshwa kwamandla ngokusebenzisa isekethe, bese iyiguqulela ekuphumeni kwezinombolo kweleveli yoketshezi.
Okukhipha isignali: Imitha yeleveli ngokuvamile idlulisela inani leleveli yoketshezi elilinganisiwe kusistimu yokulawula noma idivayisi yokubonisa ngesignali ye-analog (efana ne-4-20mA) noma isignali yedijithali (efana ne-RS485).
2. Izici zemitha yezinga le-capacitive yamasimu we-paddy
Ukuklanywa kanye nokusetshenziswa kwemitha yezinga le-capacitive emasimini e-paddy kucabangela ubunjalo bendawo yensimu ye-paddy. Izici zayo zibonakala ngokuyinhloko kulezi zici ezilandelayo:
Ikhono eliqinile lokulwa nokuphazamiseka: Imvelo emkhakheni we-paddy iyinkimbinkimbi, futhi imitha yezinga le-capacitive ngokuvamile isebenzisa ama-circuits anti-interference lapho iklama ukuqinisekisa ukuzinza okuphezulu ngaphansi komswakama kanye nokushintsha kwesimo sezulu.
Ukulinganisa okunembayo okuphezulu: Imitha yeleveli ye-capacitive inganikeza ukunemba kokulinganisa izinga lamanzi lezinga lemilimitha, elifanele ukuphathwa kahle kokunisela nemithombo yamanzi.
Izinto ezimelana nokugqwala: Ezisimini zerayisi, imitha yezinga idinga ukumelana nokugqwala okuvela emanzini, inhlabathi namanye amakhemikhali, ngakho-ke uphenyo ngokuvamile lwenziwa ngezinto ezimelana nokugqwala (njengensimbi engagqwali, ipulasitiki, njll.).
Kulula ukuyifaka nokuyinakekela: Imitha yezinga le-capacitive ilula ekwakhiweni, ayithathi isikhala esiningi sokufakwa, futhi kulula ukuyinakekela, iyenza ifanelekele ukusetshenziswa ezindaweni zasemaphandleni.
Umsebenzi wokuqapha okukude: Amamitha weleveli amaningi we-capacitive wamasimu elayisi afakwe amamojula okuxhumana angenantambo, angakwazi ukubona ukuqapha okukude nokuphathwa kwedatha, futhi athuthukise izinga lobuhlakani bokuphathwa kokunisela.
3. Izinzuzo zokufaka isicelo zamamitha e-capacitive level emasimini erayisi
Ukuphathwa kwemithombo yamanzi: Ngokuqapha ngesikhathi sangempela izinga lamanzi emasimini elayisi, abalimi bangahlulela ngokunembile izidingo zokunisela, banciphise ukumosheka kwamanzi, futhi bathuthukise ukusebenza kahle kokusetshenziswa kwamanzi.
Khulisa isivuno sezitshalo: Ukulawulwa kwezinga lamanzi ngokwesayensi kungakhuthaza ukukhula nokuthuthukiswa kwerayisi, kuqinisekise ukutholakala kwamanzi anele, futhi kugweme ukuncipha kokukhiqizwa okubangelwa ukushoda kwamanzi noma ukunqwabelana kwamanzi.
Ukulima okuhlakaniphile: Ukuhlanganisa ubuchwepheshe bezinzwa kanye ne-inthanethi Yezinto, ama-level metres angafakwa ohlelweni lokuphathwa kwezolimo jikelele ukuze kwakhe isixazululo sokunisela esihlakaniphile futhi kuzuzwe ukunemba kwezolimo.
Ukuthatha izinqumo okusekelwa yidatha: Ngokuqapha nokuhlaziya idatha yezinga lamanzi isikhathi eside, abalimi nabaphathi bezolimo bangenza izinqumo zesayensi ezengeziwe, bathuthukise izindlela zokulima kanye nesikhathi, futhi bathuthukise izinga lokuphatha ezolimo lilonke.
4. Amacala angempela
Icala 1: Ukuphathwa kwezinga lamanzi ensimini yerayisi eVietnam
Ensimini yerayisi eVietnam, abalimi ngokwesiko bathembele ekuhloleni izinga lamanzi okwenziwa ngesandla ukuze baniselwe. Le ndlela ayisebenzi kahle futhi ijwayele ukuba namaphutha ngenxa yokwahlulela okuzimele. Ukuze kuthuthukiswe ukusebenza kahle kokusetshenziswa kwemithombo yamanzi, abalimi banqume ukwethula ama-capacitive level metres njengemishini yokuqapha izinga lamanzi.
Ngemva kokufaka imitha yezinga le-capacitive, abalimi bangakwazi ukuqapha izinga lamanzi ensimini yerayisi ngesikhathi sangempela futhi bathole idatha yezinga lamanzi nganoma yisiphi isikhathi ngokuxhuma okungenantambo ngamaselula namakhompyutha. Uma izinga le-liquid liphansi kunevelu emisiwe, uhlelo lukhumbuza abalimi ngokuzenzakalelayo ukuthi banisele. Ngalesi sixazululo esihlakaniphile, abalimi baye banciphisa kakhulu ukuchithwa kwamanzi futhi bakhulisa ukukhiqizwa kwerayisi ngo-10%.
Icala 2: Uhlelo lokunisela oluhlakaniphile lwamasimu erayisi e-Myanmar
Ipulazi elikhulu eMyanmar lethule i-capacitive level meter futhi layihlanganisa nezinye izinzwa ukuze kwakhiwe uhlelo oluhlakaniphile lokulawula ukuchelela. Lolu hlelo lulungisa ngokuzenzakalelayo inani lamanzi okunisela ngokuqapha idatha ngokunembile njengezinga lamanzi, umswakama wenhlabathi kanye nezinga lokushisa.
Kuphrojekthi yokuhlola yepulazi, imitha yezinga le-capacitive ithole izinga lokushisa elikhuphukayo kanye nokwehla komswakama wenhlabathi, futhi uhlelo lwaqala ngokuzenzakalelayo ukuchelela ukuze kuqinisekiswe ukuthi amasimu elayisi athola amanzi anele phakathi nenkathi eyomile. Ngenxa yalokho, umjikelezo wokukhula kwerayisi wafinyezwa, izinhlobo eziningi zazuzwa ngempumelelo ngesizini eyodwa, futhi ukukhiqizwa okuphelele kwepulazi kukhuphuke ngo-15%.
Icala 3: Isizinda sezithombo zelayisi e-Indonesia
Esisekelweni sezithombo zerayisi e-Indonesia, ukuze kuqinisekiswe ukuzinza kwezinga lamanzi ngesikhathi sesiteji sezithombo, umphathi wethula imitha yezinga le-capacitive. Isisekelo sihlala siqapha izinga lamanzi, sihlanganisa okokusebenza nesistimu enkulu yokuhlaziya idatha, futhi silungisa njalo izinga lezinga lamanzi.
Ngokusebenzisa idatha yesikhathi sangempela, abaphathi bathole ukuthi izinga eliphansi kakhulu lamanzi lizophazamisa izinga lokusinda kwezithombo, kanti izinga eliphezulu lamanzi lizoholela kalula ezifweni nasezilokazaneni zezinambuzane. Ngemva kwezinyanga ezimbalwa zokulungisa iphutha nokwenza kahle, ukulawulwa kwezinga lamanzi ekugcineni kwafinyelelwa ngokunembile, futhi izinga lempumelelo lokutshalwa kwezithombo lenyuke ngo-20%, elithole impendulo enhle yemakethe.
5. Amathemba entuthuko
Ngokuthuthuka okuqhubekayo kobuchwepheshe bezolimo, amathuba okusetshenziswa kwamamitha wezinga le-capacitive amasimu elayisi abanzi. Indlela yentuthuko yesikhathi esizayo ibonakala kakhulu kulezi zici ezilandelayo:
Ukuhlanganiswa okuhlakaniphile: Hlanganisa amamitha eleveli ye-capacitive nezinye izinzwa (njengezinzwa zokushisa nomswakama, izinzwa zokuswakama kwenhlabathi, njll.) zibe inkundla yokuphatha ezolimo ehlakaniphile ukuze kuzuzwe ukuqapha nokuphatha okuphelele.
Ubuchwepheshe bokuxhumana okungenantambo: Ngokuthuthukiswa kobuchwepheshe be-inthanethi Yezinto, amaleveli amamitha azosebenzisa kabanzi ubuchwepheshe bokuxhumana okungenazintambo ukuze enze ukufakwa kube lula, kuthuthukiswe ukusebenza kahle kokudluliswa kwedatha, futhi abone ukuqapha okukude.
Ukuhlaziywa kwedatha kanye nokusetshenziswa: Ngobuchwepheshe obuthuthukisiwe obufana nedatha enkulu kanye nobuhlakani bokwenziwa, ukuhambisana kwedatha yesilinganiso sezinga loketshezi kuyenziwa ukuze kuhlinzekwe ukwesekwa okwengeziwe ngezinqumo zokukhiqiza ezolimo.
Ukuqamba okusha okuqhubekayo: Abakhiqizi badinga ngokuqhubekayo ukuthuthukisa izinto ezintsha kanye nobuchwepheshe obusha ukuze bathuthukise ikhono lokulwa nokuphazamiseka, impilo kanye nokunemba kwamamitha weleveli ye-capacitive ukuze kuhlangatshezwane nezidingo zezindawo ezihlukene nabasebenzisi.
Isiphetho
Imitha yezinga le-paddy enikezelwe yi-capacitive level idlala indima ebaluleke kakhulu kwezolimo zesimanje. Ukusetshenziswa kwawo ekuqapheni izinga lamanzi akuthuthukisi nje kuphela ukusetshenziswa kahle kwemithombo yamanzi, kodwa futhi kunikeza ukusekelwa okusebenzayo kwezobuchwepheshe kwezolimo ezinembayo. Ngokuthuthuka kwesayensi nobuchwepheshe kanye nentuthuko yesimanje yezolimo, ama-capacitive level metres azoqhubeka nokudlala izinzuzo zawo eziyingqayizivele ukuze asize intuthuko esimeme yokukhiqizwa kwerayisi futhi andise ukukhiqizwa kanye nemali engenayo yabalimi.
Isikhathi sokuthumela: Apr-16-2025