Iinsetjenziswa zokukhwela yokulinganisa viscosity uketshezi. viscometer ukujikeleza

Viscosity uketshezi ahlukahlukene kukalwa amadivayisi ezikhethekile - viscometers. Ngokwe-izici kanye nomklamo kukhona izinhlobo eziningana amadivayisi idatha. One viscometer rotary uyakwazi ukuhlola permeability medium.

ezihlukahlukene zomculo

Izinsimbi zomculo ezazisetshenziswa ukukala viscosity ketshezi, kungenziwa zihlukaniswe ngamaqembu ezinkulu ezintathu:

• viscometer capillary.

• viscometer Mechanical.

• viscometer ukujikeleza.

Cabanga ngamunye izinhlobo kabanzi.

imishini

Isigaba viscometers mechanical simele Inani lamadivayisi ezahlukene, isimiso zazo kusekelwe izakhiwo mechanical uketshezi. Kungaba amamitha resonance, bubble, ibhola izinhlobo. Uma izinhlobo zokuqala ezimbili ezisetshenziswa kakhulu endaweni yokucwaninga, mithandazo utholakala ekhaya. isimiso sayo ukusebenza kusekelwe ukutholakala kaGalileo.

Ngaphakathi idivayisi kukhona "iKhabhinethi", lapho ibhola. Emva ukugcwalisa idivayisi ketshezi, viscosity kumele kunqunywe, ibhola uwa. Kukala isikhathi esiqondile adingekayo ibhola ukuba bawele pad contact. viscosity Isihlobo kunqunywa ngokuvumelana nesikhathi sokuphumula.

Amadivayisi ezifana capillary

Capillary viscometer kuhleliswa kuyinto tube mncane ububanzi ezaziwayo. liquid Test kugeleza le tube. Lolu ketshezi efanayo okuzovunyelwa tube futhi ngenhloso ububanzi emikhulu, ngaphakathi okudaliwe nomphumela capillary. Ngokuvamile, notshwala uketshezi amandla adonsela phansi (ie phezulu). Kodwa ingcindezi yokufakelwa kudalwa ezinye izinsimbi. It olinganise ngesikhathi lapho uketshezi elichithwe kokubili amashubhu. Ngaphezu kwalokho, umehluko yabo ibalwa. Inani viscosity kuyinto wakhona ukubaluleka lo mehluko.

lolu hlobo amadivayisi zilula, kodwa kufanele ube usayizi esikhulu. Omunye ethile yayo wukuthi isilinganiso viscosity elinganisiwe of uketshezi kumele singeqi 12 KPA · s. Lokhu value sifana uketshezi ageleze kahle. Okuningi uketshezi obukhulu, noma ukuba izigaxa, kulesi simo, singenakulinganiswa.

viscometer ukujikeleza: ukusebenza

Ukwakheka Izikali yalolu hlobo kuyinto isilinda okuyinto ufakwa sithombe. Iphanorama kwangaphakathi ezihambayo ngesikhathi Isivinini ezithile ngenxa actuator axhunyiwe.

Phakathi uMbhalo kanye sphere kuyinto isikhala eligcwele isivivinyo ketshezi. Kulesi simo ukumelana ezinyakazayo sphere kuyahlukahluka. Kulezi amadivayisi ke kukalwa ukumelana uketshezi ukwencika ijubane ukujikeleza. Lezi nemingcele awashintsheki ngenxa isivivinyo.

Ngaphakathi uMbhalo akuyena ngaso sonke isikhathi-sithombe. Kungaba kuthathelwe indawo disc Isigaxa ipuleti noma kwenye isilinda. Ibanga phakathi umzimba yangaphandle futhi kwangaphakathi kuyinto amamilimitha angu ezimbalwa, ukudala amandla ukuhilizisana. Inani ukumelana kunqunywa izinzwa. Lapho ezabathola, ngcono ukubaluleka. Ngakho, intengo iyunithi kuyokhula.

viscometer rotary i-uketshezi viscosity okuyinto zokhahlamba kusuka izinkulungwane izigidi Pa * s. isilinganiso sangaphakathi Ukujikeleza kubalulekile. Kuthinta ukunemba ukulinganisa. I ephansi ijubane, inembe more nesilinganiso. Amadivayisi nge speed ubuncane Ukujikeleza emincane kuqondile kakhulu, kodwa ezibizayo.

Izinhlobo viscometers rotary

Okungenhla-echazwe yokusebenza isimiso zedivayisi elinesimo viscometer Brookfield. Le yidivayisi kakhulu elula lokhu imitha hlobo. Kodwa hhayi ihamba njalo ngaphakathi emzimbeni. Kwezinye izimo, lo mbhalo yangaphandle liphenduka. Yingakho viscometer rotary kungaba izinhlobo ezimbili: i-cylinder esinqunyiwe kanye torsion amamitha.

Inner umzimba torsion viscometers imiswe okwesikhashana maphakathi umucu nokunwebeka. Lapho ligijima uMbhalo yangaphandle uqala ukunyakaza uketshezi elinganisiwe. Lapho-ke ijikeleziswa futhi isilinda elisontiwe. I engela twist of uMbhalo kwangaphakathi counterbalanced ngu torque we ujikelezisa ngomshikisho uketshezi.

Iphutha nesilinganiso kwenzeka ngenxa phansi uMbhalo wangaphakathi. Izazi ezihlukahlukene baye bazama ukuxazulula le nkinga e yayo. Ngokuvamile, phansi wenza ngilugweda. Uma ugcwalisa uketshezi concavity lomoya uhlala. Ngakho, ukungqubuzana phansi incipha. Ososayensi uBerthold Hatschek, Couette isilinda kwangaphakathi afakwe iringi unogada. Lokhu kunciphisa isiyaluyalu ka injongo yawo. Volorovich wasebenzisa isilinda okusezingeni eliphezulu kodwa emincane. Iphutha ngenxa phansi baba azinakwa. Ososayensi abaningana baye basebenzisa imishini lapho ibanga phakathi amasilinda lalilincane kakhulu. Phansi idivayisi hhayi agcwele uketshezi.

viscometer rotary ku nomklamo walo has a lot of ezahlukeneyo. Kodwa ngaso sonke isikhathi kunezinzuzo ezifana nezimo, isayizi esincane, ukunemba ongaphakeme futhi eziphansi. Ngenxa lezi izici ithuluzi futhi uye uthandwa kangaka.