Imitha ye-oxygen eyi-fluorescence iyithuluzi elisetshenziselwa ukukala ukugcwala komoyampilo oncibilikisiwe emanzini. I-oxygen encibilikile ingenye yemingcele ebalulekile emanzini. Kunomthelela obalulekile ekusindeni nasekuzalweni kabusha kwezinto eziphilayo zasemanzini. Kuphinde kube ngenye yezinkomba ezibalulekile zokukala izinga lamanzi. Imitha ye-oxygen encibilikisiwe ye-fluorescence inquma ukugcwala komoyampilo oncibilikisiwe emanzini ngokulinganisa ukushuba kwesignali ye-fluorescence. Inozwela kanye nokunemba okuphezulu futhi isetshenziswa kakhulu ekuqaphelweni kwemvelo, ukuhlola izinga lamanzi, ukufuywa kwezilwane zasemanzini kanye neminye imikhakha. Lesi sihloko sizokwethula ngokuningiliziwe isimiso sokusebenza, ukwakheka kwesakhiwo, ukusetshenziswa kanye nokusetshenziswa kwemitha ye-oxygen encibilikisiwe ye-fluorescence emikhakheni ehlukene.
1. Isimiso sokusebenza
Isimiso sokusebenza semitha ye-oxygen encibilikisiwe ye-fluorescence sisekelwe ekusebenzelaneni phakathi kwama-molecule e-oksijini nezinto ze-fluorescent. Umqondo oyinhloko uwukujabulisa izinto ze-fluorescent ukuze amandla esignali ye-fluorescent eziwukhiphayo alingane nokugcwala komoyampilo okuncibilikisiwe emanzini. Okulandelayo incazelo eningiliziwe yesimiso sokusebenza semitha ye-oxygen encibilikisiwe ye-fluorescence:
1. Izinto ezikhanyayo: Izinto ze-fluorescent ezizwela umoya-mpilo, njengodayi be-fluorescent abazwela umoya-mpilo, ngokuvamile zisetshenziswa kumamitha we-oxygen ancibilikisiwe we-fluorescence. Lezi zinto ze-fluorescent zinezinga eliphezulu le-fluorescence lapho ungekho umoya-mpilo, kodwa lapho umoya-mpilo ukhona, umoya-mpilo uzosabela ngokwekhemikhali nezinto ze-fluorescent, okubangele ukuthi amandla e-fluorescence abe buthaka.
2. Umthombo wokukhanya ovusa amadlingozi: Amamitha oksijini ancibilikisiwe e-Fluorescence ngokuvamile afakwe umthombo wokukhanya ovusa amadlingozi ukuze athokozise izinto ezikhanyayo. Lo mthombo wokukhanya ojabulisayo ngokuvamile uyi-LED (i-light emitting diode) noma i-laser yobude obuthile begagasi. Ubude begagasi bomthombo wokukhanya ovusa amadlingozi buvamise ukukhethwa phakathi kwebanga le-wavelength lokumuncwa lento ye-fluorescent.
3. Isitholi se-Fluorescence: Ngaphansi kwesenzo somthombo wokukhanya ovusa amadlingozi, into ye-fluorescent izokhipha isignali ye-fluorescence, ukuqina kwayo okuhambisana ngokuphambene nokugxiliswa komoyampilo oncibilikisiwe emanzini. Imitha ye-oxygen encibilikisiwe ye-Fluorometric ifakwe umtshina we-fluorescence ukukala ukushuba kwalesi siginali ye-fluorescent.
4. Ukubala kokugxiliswa komoyampilo: Amandla esignali ye-fluorescence acutshungulwa yisekhethi engaphakathi kwethuluzi, bese iguqulelwa inani lokugxiliswa komoyampilo encibilikisiwe. Leli nani livamise ukuvezwa ngama-milligram ilitha ngalinye (mg/L).
2. Ukwakheka kwesakhiwo
Ukwakheka kwesakhiwo semitha ye-oxygen encibilikisiwe ye-fluorescence ngokuvamile kuhlanganisa izingxenye eziyinhloko ezilandelayo:
1. Ikhanda lenzwa: Ikhanda lenzwa liyingxenye exhumene nesampula yamanzi. Ngokuvamile ihlanganisa i-fluorescent optical fiber ekhanyayo noma i-diaphragm ye-fluorescent. Lezi zingxenye zisetshenziselwa ukufaka izinto ze-fluorescent. Ikhanda lenzwa lidinga ukuklama okukhethekile ukuze kuqinisekiswe ukuthi into ye-fluorescent ixhumene ngokugcwele nesampula yamanzi futhi ayiphazanyiswa ukukhanya kwangaphandle.
2. Umthombo wokukhanya ovusa amadlingozi: Umthombo wokukhanya ovusa amadlingozi ngokuvamile utholakala engxenyeni engenhla yethuluzi. Idlulisela ukukhanya okuvusa amadlingozi ekhanda lenzwa nge-fiber optical noma i-optical fiber ukuze ijabulise izinto ze-fluorescent.
3. Umtshina we-fluorescence: Umtshina we-fluorescence utholakala engxenyeni engezansi yethuluzi futhi usetshenziselwa ukukala ukushuba kwesignali ye-fluorescence ekhishwa ekhanda lenzwa. Izitholi ze-fluorescence ngokuvamile zihlanganisa i-photodiode noma ishubhu ye-photomultiplier, eguqula amasignali okukhanya abe amasignali kagesi.
4. Iyunithi yokucubungula isignali: Ithuluzi lifakwe iyunithi yokucubungula isignali, esetshenziselwa ukuguqula ukuqina kwesiginali ye-fluorescence ibe inani lokugxiliswa komoyampilo oncibilikisiwe, futhi ilibonise esikrinini sensimbi noma ukuyikhiphela kukhompuyutha. noma idivayisi yokuqopha idatha.
5. Iyunithi yokulawula: Iyunithi yokulawula isetshenziselwa ukusetha amapharamitha okusebenza ensimbi, njengokushuba komthombo wokukhanya ovusa amadlingozi, ukuzuza komtshina we-fluorescence, njll. Lawa mapharamitha angalungiswa njengoba kudingeka ukuze kuqinisekiswe umoya-mpilo onembile oncibilikisiwe. izilinganiso zokuhlushwa.
6. Isibonisi nesixhumi esibonakalayo somsebenzisi: Amamitha we-oxygen ancibilikisiwe we-Fluorescence ngokuvamile afakwe isibonisi esisebenziseka kalula kanye nesixhumi esibonakalayo esisebenzayo sokubonisa imiphumela yokulinganisa, ukusetha amapharamitha nokusebenzisa ithuluzi.
3. Isetshenziswa kanjani
Isilinganiso sokugcwala komoyampilo esincibilikisiwe kusetshenziswa imitha ye-oxygen encibilikisiwe ye-fluorescence ngokuvamile kuhilela lezi zinyathelo ezilandelayo:
1. Ukulungiswa kwezinsimbi: Okokuqala, qiniseka ukuthi insimbi isesimweni esivamile sokusebenza. Hlola ukuthi umthombo wokukhanya ovusa amadlingozi kanye nomtshina we-fluorescence zisebenza kahle, isikhathi nosuku ithuluzi elalinganiswa ngalo, kanye nokuthi into ekhanyayo idinga ukushintshwa noma ihlanganiswe kabusha.
2. Iqoqo lesampula: Qoqa isampula lamanzi ukuze lihlolwe futhi uqinisekise ukuthi isampula lihlanzekile futhi alinakho ukungcola namabhamuza. Uma kunesidingo, isisefo singasetshenziswa ukususa okuqinile okumisiwe kanye nezinhlayiyana.
3. Ukufakwa kwenzwa: Gxilisa ngokuphelele ikhanda lenzwa kusampula yamanzi ukuze uqinisekise ukuthintana okugcwele phakathi kwento ye-fluorescent nesampula yamanzi. Gwema ukuthintana phakathi kwekhanda lenzwa nodonga lwesiqukathi noma phansi ukuze ugweme amaphutha.
4. Ukulinganisa kokuqala: Khetha okuthi Qala Ukukala kusixhumi esibonakalayo sokulawula sensimbi. Ithuluzi lizojabulisa ngokuzenzakalelayo into ye-fluorescent futhi lilinganise ukushuba kwesignali ye-fluorescent.
5. Ukurekhodwa kwedatha: Ngemva kokuqedwa kokulinganisa, ithuluzi lizobonisa imiphumela yokulinganisa yokugcwala komoyampilo encibilikisiwe. Imiphumela ingarekhodwa kumemori eyakhelwe ngaphakathi ethuluzini, noma idatha ingathunyelwa kudivayisi yangaphandle ukuze igcinwe futhi ihlaziywe.
6. Ukuhlanza nokunakekela: Ngemva kokulinganisa, hlanza ikhanda lenzwa kusenesikhathi ukuze ugweme insalela yento ye-fluorescent noma ukungcola. Linganisa ithuluzi njalo ukuze uhlole ukusebenza kwalo nokuzinza ukuze uqinisekise imiphumela yokulinganisa enembile.
4. Izinkambu zokufaka isicelo
Amamitha we-oxygen e-fluorescence asetshenziswa kabanzi emikhakheni eminingi. Okulandelayo ezinye izinkambu eziyinhloko zohlelo lokusebenza:
1. Ukuqapha indawo ezungezile: Amamitha oksijini ancibilikisiwe e-Fluorescence asetshenziselwa ukuqapha ukugcwala komoyampilo oncibilikisiwe emanzini emvelo, emifuleni, emachibini, ezilwandle nakwamanye amanzi ukuze kuhlolwe izinga lamanzi emizimbeni yamanzi kanye nempilo yezinhlelo zemvelo.
2. I-Aquaculture: Ekufuyweni kwezinhlanzi nezimfanzi, ukugcwala komoyampilo okuncibilikisiwe kungenye yemingcele ebalulekile. Amamitha we-oxygen ancibilikisiwe we-fluorescence angasetshenziswa ukuqapha ukugcwala komoyampilo oncibilikisiwe emachibini okuzalanisa noma imizimba yamanzi ukuze kuqinisekiswe ukusinda nokukhula kwezilwane ezifuywayo. .
3. Ukwelashwa kwamanzi: Imitha ye-oxygen encibilikisiwe ye-Fluorescence ingasetshenziswa ukuqapha ukugcwala komoyampilo oncibilikisiwe phakathi nokwelashwa kwamanzi angcolile ukuze kuqinisekiswe ukuthi amanzi angcolile ahlangabezana nezindinganiso zokukhipha.
4. Ucwaningo lwasolwandle: Ocwaningweni lwesayensi yasolwandle, amamitha we-oxygen ancibilikisiwe we-fluorescence asetshenziselwa ukukala ukugcwala komoyampilo oncibilikisiwe emanzini olwandle ekujuleni okuhlukile nasezindaweni ukutadisha imvelo yasolwandle kanye nemijikelezo yomoya-mpilo wasolwandle.
5. Ucwaningo lwaselabhorethri: Amamitha we-oxygen ancibilikisiwe we-Fluorescence nawo avame ukusetshenziswa ocwaningweni lwesayensi yezinto eziphilayo, ezemvelo nezemvelo ezindaweni zokucwaninga ukuze kuhlolwe amandla okuchithwa komoyampilo kanye nokusabela kwebhayoloji ngaphansi kwezimo ezihlukene.
6. Isithunzi somkhiqizo: Ukukhetha abakhiqizi bemitha ye-oxygen abaziwayo nabahlonishwayo, njenge-YSI, Hach, Lianhua Technology, Thermo Fisher Scientific, njll., kungathuthukisa ukwethembeka kwethuluzi kanye nekhwalithi yesevisi yangemuva kokuthengisa.
Imitha ye-oxygen encibilikisiwe ye-fluorescence iyithuluzi elinemba okuphezulu, elizwela kakhulu elisetshenziselwa ukukala ukugcwala komoyampilo oncibilikisiwe emanzini. Umgomo wayo wokusebenza usekelwe ekusebenzelaneni kwezinto ezikhanyayo nomoya-mpilo, futhi inezinhlobonhlobo zezinhlelo zokusebenza, ezihlanganisa ukuqapha imvelo, ukufuywa kwezilwane zasemanzini, ukuhlanzwa kwamanzi, ucwaningo lwasolwandle kanye nocwaningo lwaselabhorethri. Ngenxa yalesi sizathu, amamitha we-oxygen ancibilikisiwe we-fluorescence adlala indima ebalulekile ekugcineni ibhalansi yemvelo yamanzi kanye nokuvikela imithombo yamanzi.
Insimbi ephathekayo ye-fluorescent ye-fluorescent ye-Lianhua ethi LH-DO2M (V11) isebenzisa ama-electrode ensimbi engagqwali avalwe ngokugcwele, anesilinganiso esingangeni manzi se-IP68. Kulula ukuyisebenzisa futhi ingumsizi onamandla ekutholeni indle, amanzi angcolile namanzi aselabhorethri. Ibanga lokulinganisa le-oxygen encibilikile lingu-0-20 mg/L. Asikho isidingo sokwengeza i-electrolyte noma ukulinganisa okuvamile, okunciphisa kakhulu izindleko zesondlo.
Isikhathi sokuthumela: Apr-12-2024
