Nrog rau kev txhim kho nyob rau hauv ob qho tib si txheej txheem thiab instrumentation nyob rau hauv ob lub xyoo dhau los, NMR tau dhau los ua ib tug ntawm cov haib tshaj thiab ntau yam spectroscopic cov tswv yim rau kev tsom xam ntawm chemistry, physics, cov ntaub ntawv science, biomedicine, life science.

rhiab heev thiab kev daws teeb meem yog cov cim tseem ceeb tshaj plaws ntawm NMR system. Nyob rau hauv qhov kev ntsuam xyuas zaum kawg, cov no muaj feem xyuam rau homogeneity thiab stability ntawm lub magnetic teb.

NMR spectrometers feem ntau yog siv high-field Superconducting hlau nplaum uas them taus ruaj khov sab nraud magnetic teb muaj peev xwm tau txais cov ntaub ntawv rau lub sijhawm ntev. Yog tias qhov chaw sab nraud yog tsim los ntawm cov hlau nplaum tas mus li, ib yam li cov ntaub ntawv nrog lub rooj zaum NMR spectrometers, daim teb tuaj yeem tsis ruaj khov. Cov khoom siv hlau nplaum tas mus li muaj cov yam ntxwv kub coefficients - txhais tau tias lub spectrometer's magnetic teb yuav teb rau qhov kev hloov ntawm qhov kub thiab txias.

Siv cov khoom siv hlau nplaum ua haujlwm ruaj khov, tsis muaj tub yees, tus nqi qis, tus nqi tu qis, txuag ntau pua txhiab tus nqi ua haujlwm txhua xyoo

Tom qab ua tib zoo tsim thiab tsim khoom, lub zog ruaj khov yog tsawg dua 1PPM / Teev, thiab homogeneity tsawg dua 1ppm yam tsis muaj shimming.