Yuav ua li cas kho lub polarizer ntawm lub tshuab tsom polarization
Hauv kev ua haujlwm tiag tiag, cov lus qhia kev vibration ntawm sab sauv thiab sab polarizers ntawm lub tshuab ntsuas polarizing yuav tsum yog orthogonal rau ib leeg, lossis nyob rau sab hnub tuaj-sab hnub poob lossis sab qaum teb-sab qab teb, thiab yuav tsum ua raws li cov lus qhia kab rov tav thiab ntsug ntawm eyepiece crosshairs. . Qee lub sij hawm tsuas yog ib qho qis polarizer yog siv rau kev soj ntsuam, thiab kev co kev taw qhia ntawm lub polarizer qis yuav tsum tau txiav txim siab, yog li cov polarizer yuav tsum tau ntsuas thaum ua haujlwm.
1. Kev txheeb xyuas qhov muag ntawm cov plaub muag crosshairs
Xyuas seb cov eyepiece crosshairs yog orthogonal thiab ua raws li kev co kev taw qhia ntawm sab sauv thiab sab polarizers. Nyob rau tib lub sijhawm, xaiv ib daim ntawm biotite nrog kev ua tiav tiav heev, txav mus rau qhov chaw ntawm lub ntsej muag crosshair, tso cov cleavage seam sib npaug mus rau ib qho ntawm cov hlaws, sau cov lej ntawm cov nplai ntawm cov khoom theem, thiab tom qab ntawd tig qhov kev sib tw. khoom theem kom lub cleavage seam yog parallel rau ib qho ntawm cov crosshairs. Nyob rau lwm cov crosshair, sau cov scale naj npawb ntawm cov khoom theem. Qhov sib txawv ntawm ob tus lej ntsuas yog 90 degree, qhia tias cov plaub hau yog orthogonal.
2. Kev txiav txim siab thiab kho qhov kev co kev taw qhia ntawm lub polarizer qis
Biotite yog siv los xyuas cov kev taw qhia kev vibration ntawm polarizer vim biotite yog cov pob tshab pob tshab uas muaj cov yam ntxwv zoo nyob rau hauv ib lub teeb polarized. Ua ntej, nrhiav ib daim ntawm biotite uas yog cleaved thiab meej, txav mus rau hauv nruab nrab ntawm lub eyepiece crosshair, thawb tawm lub sab sauv polarizer, tig lub theem rau ib tug tig, thiab soj ntsuam qhov kev hloov ntawm cov xim ntawm biotite, vim biotite muaj. lub zog nqus ntawm vibrational teeb nyob rau hauv cov kev taw qhia ntawm cleavage. Yog li ntawd, thaum cov xim ntawm biotite nce mus txog nws qhov tob tshaj plaws, cov kev taw qhia ntawm cov cleavage seam yog cov kev taw qhia kev vibration ntawm qis polarizer.
3. Orthogonal kho ntawm sab sauv thiab sab polarizers
Tom qab cov kev taw qhia ntawm lub hauv qab polarizer raug kho, tshem tawm daim ntawv, thawb nyob rau hauv lub polarizer sab sauv, thiab saib seb lub teb ntawm saib yog dub kiag li, uas yog, seb nws yog nyob rau hauv ib tug extinction xeev. Yog tias nws yog dub kiag li, nws txhais tau hais tias cov kev taw qhia kev co ntawm lub sab sauv thiab sab polarized teeb yog orthogonal rau ib leeg. Txwv tsis pub, lub sab sauv polarizer yuav tsum tau calibrated, uas yog, tig lub sab sauv polarizer kom txog rau thaum lub teb ntawm saib mus txog rau lub darkest theem. Thaum rotating, koj yuav tsum xub loosen lub nres ntsia hlau ntawm lub sab sauv polarizer, thiab ces zawm nws tom qab kho nws.
