Video: Dab tsi yog qhov precision ntawm ib lub tog raj kheej kawm tiav?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Qhov kev faib tsawg tshaj plaws ntawm qhov no kawm tiav lub tog raj kheej yog 1ml. Yog li ntawd, peb qhov kev nyeem ntawv yuam kev yuav yog 0.1 mL lossis 1/10 ntawm qhov sib faib tsawg tshaj plaws. Kev nyeem ntawv tsim nyog ntawm qhov ntim yog 36.5 0.1 mL. Tus nqi sib npaug yuav yog 36.6 mL lossis 36.4 mL.
Yog li ntawd, dab tsi yog qhov precision ntawm 10 mL kawm tiav lub tog raj kheej?
Txoj cai dav dav ntawm tus ntiv tes xoo yog: koj tuaj yeem kwv yees ib tus lej ntxiv dhau qhov kev faib tsawg tshaj plaws ntawm qhov ntsuas ntaus ntawv. Yog koj saib a 10mL kawm tiav lub tog raj kheej , piv txwv li, qhov tsawg tshaj plaws kawm tiav yog kaum ntawm a milliliter (0.1 mL ). Qhov ntawd txhais tau tias thaum koj nyeem qhov ntim, koj tuaj yeem kwv yees mus rau qhov chaw ntau pua (0.01 mL ).
Tsis tas li ntawd, uas muaj ntau dua qhov tseeb ntawm 10 mL kawm tiav lub tog raj kheej lossis 50 ml kawm tiav lub tog raj kheej? Teb thiab piav qhia: Lub kawm tiav lub tog raj kheej nrog rau feem ntau subdivisions ntawm lub mL cov qhab nia yog qhov tseeb tshaj plaws. Feem ntau qhov no yuav yog 50 mL kawm tiav lub tog raj kheej.
Raws li txoj cai, dab tsi yog qhov tseeb dua lub beaker lossis kawm tiav lub tog raj kheej?
Qhov txawv ntawm a Beaker & ib Kawm tiav lub tog raj kheej . Ob leeg kawm tiav cylinders thiab beakers yog cov khoom kuaj iav uas muaj cov haujlwm tshwj xeeb. Kawm tiav cylinders feem ntau yog tseeb dua ntawm kev nyeem cov ntim ntawm cov kua hauv. Beakers yog zoo dua rau nplawm thiab sib tov kua.
Dab tsi yog qhov tsis paub meej ntawm 100 mL kawm tiav lub tog raj kheej?
0.5-1.0 mL
Pom zoo:
Lub luag haujlwm ntawm ib lub tog raj kheej ua haujlwm yog dab tsi?
Ib lub tog raj kheej ua yeeb yam yog lub cav uas cov kua ua haujlwm ntawm ib sab nkaus xwb. Nws ua haujlwm raws li qhov hnyav ntawm lwm lub tog raj kheej, lossis lub zog ntawm lub log, uas ua rau kom tsav lub piston rov qab mus rau lwm qhov. Cov hom thooj voos kheej kheej no feem ntau pom muaj nyob rau hauv cov tshuab reciprocating
Dab tsi yog qhov nyias nyias lub tog raj kheej?
Thaum lub raj nyias nyias los yog lub tog raj kheej raug rau sab hauv lub hoops thiab longitudinal stress yog tsim nyob rau hauv phab ntsa. Rau qhov sib npaug ntawm cov phab ntsa nyias hauv qab phab ntsa thickness tsawg dua 1/20 ntawm lub raj lossis lub tog raj kheej txoj kab uas hla
Dab tsi txaus ntshai zoo kawg li nws yog qhov peb yuav tsum tau khawb trenches thiab sim cov roj npog qhov ncauj qhov ntswg ntawm no vim muaj kev sib cav nyob hauv lub tebchaws nyob deb ntawm cov neeg uas peb tsis paub dab tsi?
Qhov txaus ntshai npaum li cas, zoo heev, zoo kawg yog tias peb yuav tsum tau khawb trenches thiab sim roj-qhov ncauj qhov ntswg ntawm no vim muaj kev sib cav nyob rau hauv ib lub teb chaws nyob deb ntawm cov neeg uas peb tsis paub dab tsi. Nws zoo nkaus li tseem tsis yooj yim dua tias kev sib cav uas twb tau hais tseg hauv txoj cai yuav tsum yog kev ua tsov rog
Vim li cas koj thiaj siv lub tog raj kheej kawm tiav es tsis txhob siv lub beaker?
Cov cylinders kawm tiav yog tsim los rau kev ntsuas qhov tseeb ntawm cov kua dej nrog qhov yuam kev me dua li beakers. Lawv yog nyias dua li lub beaker, muaj ntau ntau cov qhab nia kawm tiav, thiab tsim kom muaj nyob rau hauv 0.5-1% yuam kev. Yog li ntawd, tus txheeb ze ntawm tus beaker no yog qhov tseem ceeb rau yuav luag txhua qhov chaw kuaj
Koj puas tuaj yeem ua kom sov lub tog raj kheej kawm tiav?
Lub tog raj kheej kawm tiav tuaj yeem ua kom sov? Yog lawm, txawm hais tias cov qauv iav, uas yog ua los ntawm borosilicate iav, tuaj yeem siv cua sov ntau dua li lub tog raj kheej yas. Borosilicate iav cylinders tuaj yeem tiv taus qhov kub ntawm 329 ° F (165 ° C) thiab tseem tiv taus thermal shock