PRIMENA NUKLEARNE MAGNETNE REZONANCIJE ZA MERENjE PROTOKA IZOLACIONE TEČNOSTI

CIGRE 35 (2021) (стр. 1189-1197) 

АУТОР(И) / AUTHOR(S): Nenad M. Kartalović, Saška D. Đekić, Saša B. Đekić, Dušan P. Nikezić, Uzahir R. Ramadani

Е-АДРЕСА / E-MAIL: dusan@vin.bg.ac.rs

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DOI: 10.46793/CIGRE35.1189K

САЖЕТАК / ABSTRACT:

U radu se razmatra primena nuklearne magnetne rezonancije za merenje protoka izolacione tečnosti. Rad je eksperimentalnog karaktera. Protokomeri na bazi nuklearne magnetne rezonancije su izuzetno precizni. Kombinovana merna nesigurnost može biti 0.1 %. Takva vrednost merne nesigurnosti ukazuje da se radi o određivanju determinističke a ne stohastičke veličine. Ovako visok stepen pouzdanosti metode je teoretski i matematički objašnjen. U radu je prikazana merna šema za merenje protoka. Izvršeno je merenje protoka vode na principu nuklearne magnetne rezonancije i na bazi tricijumske vode (koja se smatra najtačnijom klasičnom metodom). Dobijeni rezultati pokazuju da je merenje protoka na bazi nuklearne magnetne rezonancije tačnije (naročito pri većim protocima). Ovo je objašnjeno većom inercijalnom masom molekula tricijumske vode HTO od mase standardne vode H2O i mogućim prelazom tricijumske vode u H3HeO. Na ovaj način je dokazano da je trasiranje vode na osnovu NMR jedino pravo trasiranje vode vodom. Rezultati rada dokazuju da trasiranje vode triciranom ili teškom vodom nije trasiranje vode vodom što je objašnjeno različitim inercijalnim masama.

КЉУЧНЕ РЕЧИ / KEYWORDS:

nuklearna magnetna rezonancija, protokomer, izolacione tečnosti

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