Biological microscope eyepiece micrometer qauv
Thaum siv lub tshuab kuaj kab mob lom, qee zaum yuav tsum ntsuas qhov ntev ntawm cov khoom pom. Txij li cov khoom nyob rau hauv kev soj ntsuam me me heev, nws tsis tuaj yeem ntsuas nws ncaj qha nrog cov cuab yeej ntsuas, yog vim li cas peb thiaj li yuav tsum tau siv lub tshuab ntsuas qhov tshwj xeeb micrometer. Txhawm rau ntsuas qhov ntev ntawm cov khoom yuav tsum tau kuaj xyuas, koj yuav tsum tau siv ob lub cuab yeej, ib qho yog mounted rau hauv lub eyepiece, hu ua eyepiece micrometer; ib daim ntawm cov cab kuj, yog ib daim npog tshwj xeeb, koj tuaj yeem pom hauv nruab nrab ntawm thaj chaw me me, uas yog kos nrog cov nplai me me, qhov dav dav dav ntawm 1 hli, tag nrho ntawm 100 hlwb, uas yog, nrug ntawm txhua lub xov tooj yog 10um, nws yog lub luag haujlwm ntawm kev txiav txim siab qhov ntev ntawm cov khoom. Nws yog siv los txiav txim qhov ntev ntawm lub qhov muag micrometer nyob rau hauv biomicroscope.
Nyob rau hauv kev siv, peb yuav tsum tau thawj eyepiece micrometer mus rau hauv lub eyepiece raj, lub tshwj xeeb kev ua hauj lwm yog: thawj zaug rub lub eyepiece los ntawm lub tshuab ntsuas, deb ntawm lub lens (uas yog, peb feem ntau saib qhov chaw ntawm kev soj ntsuam) nyob rau hauv lub kawg ntawm ib tug. iav-zoo li lub voj voog, unscrewing nws, thiab ces lub eyepiece micrometer rau hauv uas, them sai sai mus rau sab pem hauv ntej ntawm lub teb ntawm saib yuav tsum tau muab tso rau ntawm lub diaphragm, thiab ces screwed rov qab mus rau lub eyepiece yuav muab rov qab. Qee qhov microscopes tsis raug tso cai kom muab tshem tawm vim lawv cov qauv raug, thiab xav tau cov khoom siv tshwj xeeb uas muaj micrometer kav. Tom qab ntawd muab tus pas ntsuas micrometer tso rau ntawm tus nqa khoom theem, kho qhov ua kom pom tseeb ntawm lub tshuab ntsuas kom paub tias koj tuaj yeem pom qhov tseeb ntawm tus pas ntsuas. Nyob rau ntawm no, kho kom ib kawg ntawm ob tug kav nyob rau hauv tag nrho scale overlap, thiab ces nrhiav rau lwm kawg ntawm lub overlap nyob rau hauv dab tsi qhov chaw, suav tus naj npawb ntawm lawv overlap ib feem ntawm daim phiaj yuav xam tau lub eyepiece. microscope micrometer nyob rau hauv cov ntaub ntawv ntawm magnification ntawm qhov tseeb magnification.
Cov mis tshwj xeeb yog raws li nram no:
Eyepiece micrometer ib thav duab=(tus naj npawb ntawm overlaps ntawm lub rooj kav X 10) ÷ tus naj npawb ntawm overlaps ntawm lub eyepiece kav. Raws li qhia saum toj no, qhov sib tshooj ntawm lub rooj nplai yog 4 thav ntawv, thiab sib tshooj ntawm lub qhov muag micrometer yog 10 thav ntawv. Los ntawm qhov no, koj tuaj yeem xam qhov ntev ntawm lub qhov muag micrometer ib daim phiaj: (4X10)/10=4um.
Tom qab txiav txim siab qhov ntev uas sawv cev los ntawm txhua lub xov tooj ntawm lub qhov muag micrometer, tshem tawm lub rooj kav thiab siv nws tom qab los txiav txim qhov ntev ntawm cov khoom raug tshuaj xyuas. Txij li thaum lub tshuab microscope muaj ob peb lub hom phiaj lo ntsiab muag, txhua qhov muaj qhov sib txawv, qhov ntev ntawm lub qhov muag micrometer txawv ntawm qhov sib txawv, yog li nws yuav tsum tau rov ntsuas dua thaum hloov qhov magnification.
