Taw qhia rau Kev Ntsuas Cov Kua Dej thiab Khoom Los ntawm Abbe Refractometer

Aug 03, 2023

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Taw qhia rau Kev Ntsuas Cov Kua Dej thiab Khoom Los ntawm Abbe Refractometer

 

(1) Kev txiav txim siab ntawm cov kua pob tshab thiab cov pob tshab:

Ntxiv ib lub tshuab nqus dej huv rau saum npoo ntawm qhov refracting prism nrog cov kua ntsuas, npog lub prism tuaj, thiab kaw kom nruj nrog lub tes tuav. Cov txheej txheem ua kua yog xav tau


Uniform, tag nrho ntawm kev pom, tsis muaj npuas. Qhib lub hnub ci, kaw lub reflector, kho qhov pom ntawm qhov muag, thiab ua kom pom cov duab ntawm cov plaub hau kom pom tseeb. Thaum lub sij hawm no, tig lub handwheel thiab nrhiav txoj hauj lwm ntawm lub teeb tsaus ciam teb nyob rau hauv lub eyepiece teb ntawm saib. Tom qab ntawd, tig lub handwheel kom lub ciam teb tsis muaj xim. Fine kho lub handwheel ua rau ciam teb nyob rau hauv nruab nrab ntawm lub crosshair. Tom qab ntawd, tig lub condenser kom tsim nyog. Tus nqi tso tawm hauv qab ntawm qhov muag qhov muag pom yog qhov ntsuas qhov ntsuas ntawm cov kua ntsuas.


(2) Abbe refractometer rau ntsuas pob tshab khoom:

Yuav tsum muaj lub tiaj polishing nto ntawm cov khoom kuaj. Qhib lub teeb inlet prism, ntxiv 1-2 tee ntawm bromonaphthalene rau polishing nto ntawm lub refracting prism, thiab so lub polished nto ntawm cov khoom kuaj kom huv si thiab muab tso rau sab saum toj kom muaj kev sib cuag zoo. Lub sijhawm no, nws tuaj yeem muab tso rau hauv lub qhov muag


Cov txheej txheem kev khiav hauj lwm rau kev nrhiav ciam teb, aiming, thiab nyeem ntawv nyob rau hauv qhov kev pom yog raws li tau piav ua ntej.


(3) Kev txiav txim siab ntawm cov pob tshab pob tshab:

Lub tiaj polished nto kuj yuav tsum tau rau ntawm cov khoom kuaj semi pob tshab. Thaum ntsuas, polished nto ntawm cov khoom yog coated nrog brominated naphthalene ntawm lub refractive prism, thiab lub reflector yog qhib thiab lub kaum sab xis yog kho siv lub reflected beam. Txoj kev ua haujlwm tshwj xeeb yog tib yam li saum toj no.


(4) Ntsuas qhov concentration ntawm qab zib hauv sucrose:

Kev ua haujlwm yog tib yam li thaum ntsuas qhov ntsuas qhov ntsuas ntawm cov kua. Nyob rau ntawm lub sijhawm no, kev nyeem ntawv tuaj yeem nyeem ncaj qha los ntawm ib nrab sab saud ntawm tus nqi tso tawm hauv qhov kev pom, uas yog feem pua ​​​​ntawm cov piam thaj concentration hauv cov tshuaj sucrose.

 

1 Sugar Content Measuring Instrument

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