Usoro dị iche iche nke ihe mmetụta oxygen ahụike bụ: sensọ electrochemical, fluorescent oxygen sensọ
1. Electrochemical oxygen sensọ
A na-ejikarị ihe ndị na-ahụta ikuku oxygen na-ahụ maka electrochemical iji tụọ ihe dị n'ime ikuku ikuku.A na-ejikọta ihe mmetụta ndị a na igwe RGM iji tụọ ntinye nke ikuku oxygen.Ha na-ahapụ mgbanwe kemịkalụ n'ime ihe nhụta, na-ebute mmepụta eletrik nke dabara na ọkwa oxygen.Ihe mmetụta electrochemical na-agbanwe ike kemịkalụ ka ọ bụrụ ike eletrik site na usoro oxidation na mbelata.Ọ na-enye mmepụta eletrik na ngwaọrụ ahụ nke ọma na pasent oxygen na cathode na anode.Ihe mmetụta oxygen na-arụ ọrụ dị ka isi iyi dị ugbu a, ya mere a na-eme nha voltaji site na ihe mgbochi ibu.Ihe mmepụta ihe nke ikuku oxygen na-adabere na ọnụego ikuku oxygen site na ihe mmetụta oxygen.
A na-atụkarị mmepụta nke ihe mmetụta electrochemical na microamps (a).Nke a dị ugbu a na-eme mgbe electrons na-agafe usoro oxidation na anode na ions na-agbasa n'ime ngwọta electrolyte site na usoro mbelata oxygen na cathode.
2. Fluorescent oxygen sensọ
Ihe mmetụta oxygen anya na-adabere n'ụkpụrụ nke fluorescence quenching oxygen.Ha na-adabere na iji isi iyi ọkụ, ihe nchọpụta ọkụ na ihe ndị na-egbuke egbuke na-emeghachi omume na ìhè.Igwe ikuku oxygen dabere na luminescence na-edochi ihe mmetụta oxygen electrochemical n'ọtụtụ mpaghara.
Ogologo oge a mara ụkpụrụ nke ikuku oxygen fluorescence quenching.Ụfọdụ ụmụ irighiri ihe ma ọ bụ ogige na-enwu (ya bụ, na-ebunye ike ọkụ) mgbe ekpughere ya na ìhè.Otú ọ dị, ọ bụrụ na mkpụrụ ndụ oxygen dị, a na-ebufe ike ọkụ na ikuku oxygen, na-eme ka ìhè dị ntakịrị.Site n'iji isi iyi ọkụ ama ama, ike ọkụ ahụ achọpụtara na-adaba na ọnụọgụ molekul oxygen dị na nlele.Ya mere, ka achọpụtara obere fluorescence, ka ikuku oxygen ga-adịrịrị na gas sample.
N'ụfọdụ sensọ, a na-achọpụta fluorescence ugboro abụọ n'ime oge a ma ama.Kama ịtụ ngụkọta fluorescence, a na-atụ mbelata nke fluorescence ka oge na-aga (ya bụ, fluorescence quenching).Usoro oge ire ere a na-enye ohere imepụta ihe mmetụta dị mfe.
Igwe ikuku oxygen fluorescent nke pipeline LOX-02-F bụ ihe mmetụta na-eji ọkụ ọkụ na-emenyụ oxygen iji tụọ ọkwa oxygen gburugburu.Ọ bụ ezie na ọ nwere otu usoro kọlụm ahụ na nha usoro 4 dị ka sensọ electrochemical, ọ naghị etinye oxygen ma nwee uru nke ogologo ndụ (afọ 5).Nke a na-eme ka ọ baa uru maka ngwaọrụ ndị dị ka mkpuchi nchekwa ikuku oxygen na-ebelata ọnụ ụlọ nke na-enyocha ọdịda mberede na ọkwa oxygen na gas abịakọrọ nke echekwara na ikuku ime ụlọ.
Oge nzipu: Eprel-14-2022