Daim ntawv thov teb ntawm Polarizing Microscopes
Polarization microscope yog ib qho cuab yeej tseem ceeb rau kev kawm thiab txheeb xyuas cov khoom nrog birefringence siv cov yam ntxwv ntawm lub teeb. Nws tuaj yeem siv rau kev soj ntsuam ib leeg polarization, kev soj ntsuam orthogonal polarization, thiab kev soj ntsuam lub teeb cone. Txoj kev hloov lub teeb zoo tib yam rau hauv lub teeb polarized rau daim iav tshuaj xyuas kom paub qhov txawv ntawm cov khoom puas yog ib qho refractive (isotropic) lossis birefringent (anisotropic). Birefringence yog ib qho tseem ceeb ntawm cov muaju. Yog li ntawd, polarizing microscopes yog dav siv nyob rau hauv teb xws li minerals thiab chemistry. Hauv biology, ntau cov qauv kuj muaj birefringence, uas yuav tsum tau siv cov polarizing microscopes kom paub qhov txawv. Hauv botany, xws li txheeb xyuas cov fibers, chromosomes, spindles, starch granules, cell phab ntsa, thiab seb puas muaj cov muaju hauv cytoplasm thiab cov ntaub so ntswg. Hauv cov nroj tsuag pathology, kev ntxeem tau ntawm cov kab mob feem ntau ua rau muaj kev hloov pauv hauv cov tshuaj lom neeg ntawm cov ntaub so ntswg, uas tuaj yeem txheeb xyuas los ntawm lub teeb pom kev zoo polarized. Polarized microscopy feem ntau yog siv rau hauv tib neeg thiab tsiaj cov kev tshawb fawb los txheeb xyuas cov pob txha, cov hniav, cov roj cholesterol, cov hlab ntsha, cov qog hlwb, cov nqaij ntshiv, thiab cov plaub hau. Niaj hnub no peb yuav qhia txog daim ntawv thov teb ntawm polarizing microscopes.
1. Nyob rau hauv lub teb ntawm biology, txawv fibrous protein lug nthuav qhia anisotropy tseem ceeb, thiab cov ncauj lus kom ntxaws txheej txheem ntawm molecules nyob rau hauv cov fibers yuav tau siv ib tug polarizing microscope. Xws li collagen, spindle fibers thaum faib cell, thiab lwm yam.
2. Kev txheeb xyuas ntau yam khoom siv roj ntsha thiab tsis muaj roj ntsha, xws li kev txheeb xyuas cov khoom siv hmoov txhuv nplej siab, kev txheeb xyuas cov khoom siv tshuaj, fiber ntau, kua siv lead ua kua, DNA siv lead ua, thiab lwm yam.
3. Geological thiab ntxhia tsom xam: xws li kev tsom xam ntawm cov ntxhia thiab muaju.
4. Kev tshuaj xyuas kev kho mob: xws li kev tsim pob zeb, uric acid crystal test, mob caj dab, thiab lwm yam.
