Onlyabouta kaum xyoo tom qabHooke txoj haujlwm, Christiaan Huygens (1629-1695) kuj tau tsim ib qho qauv ntawm cov txheej txheem schlieren siv thaj tsam nyob deb-tsaus [26]. Huygens tam sim no nto moo, tau kawg, rau nws qhov kev tshawb pom hnub qub, ntsuas lub sij hawm, kinetic zog mis, thiab lub ntsiab lus tseem ceeb kho qhov muag hu ua nws (Sect.
Leej twg invented schlieren imaging?
Inventor August Toepler [17] txhob txwm muab lub cuab yeej rau lub npe catchy: txoj kev ntawm streaks (Schlieren hauv German). Hauv paus, schlieren optics muaj peev xwm txheeb xyuas cov kev hloov pauv hauv qhov ntsuas qhov cuam tshuam n ntawm qhov nruab nrab los ntawm lub teeb ci dhau mus.
Txoj kev schlieren yog dab tsi?
Schlieren kev yees duab zoo ib yam li cov txheej txheem duab ntxoov ntxoo thiab tso siab rau qhov tseeb tias lub teeb rays yog khoov thaum twg lawv ntsib kev hloov pauv ntawm cov kua dej. Schlieren systems yog siv los pom qhov ntws tawm ntawm qhov chaw ntawm ib qho khoom…
Schlieren imaging system yog dab tsi?
Schlieren imaging systems muab cov txheej txheem muaj zog kom pom kev hloov pauv lossis tsis sib xws hauv qhov ntsuas huab cualossis lwm yam xov xwm pob tshab. Nws yog dav siv nyob rau hauv aeronautical engineering los yees duab qhov ntws ntawm huab cua ncig cov khoom.
Dab tsi yog qhov txawv ntawm duab ntxoov ntxoo thiab schlieren?
Schlieren ntsuas lub kaum sab xis me me ntawm deflection ntawm lub teeb ci thaum nws tawm los ntawm ntu kev xeem. Shadowgraph ntsuas deflection nrog rau tawm ntawm lub teeb teeb ntawm lub dav hlau tawm ntawm lub cuab yeej.
