I-LMEC-11 Measuring Liquid Viscosity – Falling Sphere Method

Incazelo emfushane:

I-liquid viscosity coefficient, eyaziwa nangokuthi i-liquid viscosity, ingenye yezakhiwo ezibalulekile zoketshezi, ezinezinhlelo zokusebenza ezibalulekile kwezobunjiniyela, ubuchwepheshe bokukhiqiza kanye nemithi.Indlela yebhola eliwayo ifaneleka kakhulu ekufundiseni kokuhlolwa kwabafundi abasha kanye nabafundi be-sophomores ngenxa yento yayo ebonakalayo ebonakalayo, umqondo ocacile kanye nemisebenzi eminingi yokuhlola kanye nokuqukethwe kokuqeqeshwa.Kodwa-ke, ngenxa yethonya lesitophuwashi elenziwa mathupha, i-parallax nebhola eliwa phakathi nendawo, ukunemba kokulinganisa isivinini esiwayo akubanga phezulu esikhathini esidlule.Leli thuluzi aligcini nje ngokugcina ukusebenza nokuqukethwe kokuhlola kwedivayisi yokuqala yokuhlola, kodwa futhi yengeza isimiso nendlela yokusebenzisa isibali sikhathi se-laser photoelectric, esinweba ububanzi bolwazi, sithuthukise ukunemba kokulinganisa, futhi sifake ukwenziwa kwesimanje kokufundisa kokuhlola.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izici

1. Yamukela isikhathi sesango le-laser photoelectric, isikhathi sokulinganisa esinembe kakhudlwana.
2. Ngenkomba yokulinganisa indawo yesango likagesi wesithombe, ngenkinobho yokuqala ukuvimbela ukulinganiswa kabi.
3. Thuthukisa idizayini yepayipi lebhola eliwayo, imbobo engaphakathi engu-2.9mm, umumo webhola eliwayo ungalungiswa kahle, ukuze amabhola ensimbi amancane nawo akwazi.
usike kahle i-laser beam, wandise isikhathi sokuwa futhi uthuthukise ukunemba kokulinganisa.

Izivivinyo
1. Ukufunda indlela yokuhlola yokulinganisa isikhathi kanye nesivinini sokunyakaza kwento ngenzwa ye-laser photoelectric.
2. Ukulinganisa i-viscosity coefficient (i-viscosity) yamafutha kusetshenziswa indlela yebhola eliwayo ngefomula ye-stokes.
3. Ukubheka izimo zokuhlola zokulinganisa i-viscosity coefficient yoketshezi ngendlela yebhola eliwayo nokwenza izilungiso uma kudingekile.
4. Tadisha ithonya lama-diameter ahlukene amabhola ensimbi enqubweni yokulinganisa kanye nemiphumela.
Imininingwane

Incazelo	Imininingwane
Ububanzi bebhola lensimbi	2.8mm & 2mm
I-Laser photoelectric timer	Isixazululo esingu-99.9999s esingu-0.0001s, esinenkomba yokumisa yesango lesithombe sikagesi
Isilinda esiwuketshezi	1000ml ukuphakama mayelana 50cm
Iphutha lokulinganisa i-liquid viscosity coefficient	Ngaphansi kuka-3%