Lub hauv paus ntsiab lus ntawm Microscope Reading
Ib qho kev ntsuas qhov ntev uas siv lub tshuab tsom iav qhov muag kom nthuav dav, subdivide thiab nyeem cov kev kawm tiav ntawm cov kab tawm. Nws feem ntau yog siv los ua ib feem ntawm qhov ntsuas qhov ntsuas, ntsuas qhov ntev thiab lub tshuab ntsuas ntsuas, lossis ua ib feem ntawm lub tshuab jig tho txawv thiab jig sib tsoo tshuab, thiab lwm yam. Nws tuaj yeem siv ib leeg los ntsuas qhov me me. , xws li xov spacing, hardness testing Indentation txoj kab uas hla, tawg thiab lub qhov taub, thiab lwm yam. Nws division tus nqi muaj ob peb hom ntawm 10 microns, 1 micron thiab 0.5 microns.
Raws li cov ntsiab lus sib txawv, kev nyeem cov tshuab tsom iav feem ntau yog muab faib ua peb hom: nyeem ncaj qha, hom txav reticle thiab hom duab txav.
1. Direct-reading microscope: lub teev ntawm tus kab kav yog ib feem ntawm lub hom phiaj lens thiab tom qab ntawd ua duab rau ntawm lub reticle. Yog hais tias txoj kab sib nrug yog 1 hli, nws tau nthuav dav mus rau tib qhov kev ncua deb li 100 kev kawm tiav ntawm reticle. Los ntawm cov eyepiece (magnification) qhov kev kawm tiav ntawm 0.01 hli tuaj yeem nyeem tau.
2. Kos lub xov tooj ntawm tes nyeem microscope: Tig lub micro handwheel thaum ntsuas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm nyeem los ntawm movable reticle. Txhawm rau kom tsis txhob hnav ntawm cov xov precision (lossis lwm cov txheej txheem micro-txheej txheem) ntawm lub micro-handwheel, qee lub tshuab tsom iav ua rau ob kab kos rau ntawm lub reticle txav mus rau hauv ob chav Archimedes spirals (c hauv daim duab). Lub suab ntawm ob lub Archimedes kauv yog sib npaug rau 1/10 ntawm tus kav xov thiab xov pitch multiplied los ntawm magnification ntawm lub hom phiaj lens, thiab 100 sib npaug sib faib yog engraved rau nws puab lub voj voog, yog li tom qab nws ua raws li cov duab xov. , Qhov thib kaum tuaj yeem nyeem tau los ntawm cov reticle ruaj khov, thiab cov feem pua thiab txhiab tuaj yeem nyeem tau los ntawm cov reticle txav tau.
3. Duab xov tooj ntawm tes nyeem microscope: ntxiv cov khoom siv kho qhov muag (xws li lub dav hlau sib luag iav, kho qhov muag iav los yog lub lens nyiaj, thiab lwm yam) ntawm lub hom phiaj lens thiab lub reticle. Thaum hom kev kho qhov muag tau txav mus, cov duab kab ntawm kab kab yuav txav mus, thiab tom qab cov duab kab yog ua raws li ob npaug ntawm reticle ntawm lub reticle ruaj, cov reticle ruaj khov thiab cov reticle txav tau tuaj yeem nyeem los ntawm cov reticle ruaj khov thiab lub movable reticle feem. Nyeem tawm lub kaum, pua thiab txhiab.
Cov khoom lag luam uas nthuav dav cov kab ntsuas ntsuas los ntawm lub hom phiaj lens thiab ua haujlwm nws ntawm lub vijtsam video, thiab siv cov khoom siv reticle thiab micro txav mus rau subdivide thiab nyeem yog hu ua lub taub hau nyeem ntawv kho qhov muag. Nws tuaj yeem txo qhov qaug zog ntawm tib neeg lub qhov muag thaum tsom thiab nyeem ntawv, thiab nws qhov kev kawm tiav yog 10 microns, 2 microns thiab 1 micron.
