LADP-1 Njira Yoyesera ya CW NMR - Advanced Model
Nuclear magnetic resonance (NMR) ndi mtundu wa kusintha kwamphamvu komwe kumachitika chifukwa chamagetsi yamagetsi yamagetsi yamagetsi yamagetsi. Popeza maphunzirowa adachitika mu 1946, njira ndi maluso a nyukiliya yamagetsi (NMR) adapangidwa mwachangu ndipo amagwiritsidwa ntchito kwambiri chifukwa atha kulowa mkati mwazinthuzo osawononga chitsanzocho, ndikukhala ndi mwayi wofulumira, kulondola komanso kukwera chisankho. Masiku ano, adutsa kuchokera ku fizikiki kupita ku chemistry, biology, geology, chithandizo chamankhwala, zida ndi zina, akuchita mbali yayikulu pakufufuza ndi kupanga zasayansi.
Kufotokozera
Gawo losankha: pafupipafupi mita, gawo lokonzekera lokha la oscilloscope
Njira yoyeserera yamagetsi yamagetsi yamagetsi yopitilira muyeso (CW-NMR) imakhala ndi maginito ophatikizana komanso makina akuluakulu. Maginito okhazikika amagwiritsidwa ntchito kupangira maginito oyambira pamagetsi osunthika pamagetsi, opangidwa ndi ma coil awiri, kuti athe kusintha maginito onse ndikubwezera kusinthasintha kwa maginito komwe kumadza chifukwa cha kusiyanasiyana kwa kutentha.
Chifukwa pamagetsi ochepa amagetsi okha ndi omwe amafunikira gawo lamagetsi lamagetsi, vuto lotenthetsera makina limachepetsedwa. Chifukwa chake, makina amatha kugwiritsidwa ntchito mosalekeza kwa maola angapo. Ndi chida choyesera choyesera ma laboratories apamwamba a fizikiya.
Zofunika
|
Kufotokozera |
Mfundo |
| Muyeso woyesedwa | H ndi F |
| SNR | > 46 dB (H-mtima) |
| Mafupipafupi a Oscillator | 17 MHz mpaka 23 MHz, yosinthika mosalekeza |
| Area wa mzati maginito | Awiri: 100 mm; mtunda: 20 mm |
| Matalikidwe a ma NMR (pachimake pachimake) | > 2 V (H-mtima); > 200 mV (F-mtima) |
| Kusagwirizana kwa maginito | kuposa 8 ppm |
| Kusintha mitundu yamagawo yamagetsi yamagetsi | 60 Gauss |
| Chiwerengero cha mafunde a coda | > 15 |
Yesani
1. Kuwona chodabwitsa cha nyukiliya yamagetsi (NMR) ya hydrogen nuclei m'madzi ndikufanizira kukopa kwa ayoni;
2. Kuyesa magawo a hydrogen nuclei ndi fluorine nuclei, monga spin maginito ratio, Lande g factor, etc.
