Ukusebenza Doppler

Isiphumo Doppler yenye lwezona zinto zimangalisayo ukufunda iimpawu iziganeko otshangatshangiswayo. iyafika jikelele imisela ukuba namhlanje ezisekelwe oku koko namawaka-waka izixhobo ezahlukeneyo kwiinkalo ezahlukeneyo zezinto ezenziwa luluntu. Ziyenzeka, nto leyo ke ogama imbeko discoverer yayo, kwafunyaniswa yi yamachiza yaseOstriya zamaKristu Doppler kwasekuqaleni kwenkulungwane ye-yeshumi elinesithoba. imilinganiselo Doppler olwenziwe iipropati amaza ezifunyenwe yi umamkeli lo mthombo eshukumayo nezinto zokubhala.

Ukuba sicinga isiphumo Doppler ngendlela elula, kufanele kuqatshelwe ukuba isenzeko ebonakalayo sichaza utshintsho kwi-frequency uphawu malunga nemali intshukumo umthombo umqondiso ephuma kwisamkeli ofumana kuyo. Umzekelo, iliza iphuma ezinye imvelaphi, iyeyiphi kumaza athile esingatshintshiyo, ziya kwamkelwa yi umdlali sele kwi rhoqo eyahlukileyo ukuba ngexesha sicatshulwa yayo umthombo kunye ngumamkeli zatshintsha xa kuthelekiswa yabo isikhundla omnye komnye, oko isusiwe. Kweli nani kuya kwandisa okanye ukwenzeka nciphisa luxhomekeke indlela apho umthombo ihambisa kuthelekiswa kwisamkeli. Ngenxa isiphumo Doppler, asinakukwazi achaze ukuba xa umdlali eshenxela kude kumthombo - ixabiso njalo otshangatshangiswayo kunciphisa. Ukuba yomfumani besondela umthombo radiation yomtshangatshangiso, ngoko emlinganisweni amaza ukunyuka otshangatshangiswayo. Ngako oko, kule mithetho kuphothulwe ukuba umthombo kwamaza kwaye ufumana ngexesha sicatshulwa balo lithe ukutshintsha indawo yayo, ngoko ke ixabiso njalo yomtshangatshangiso iya kuhlala injalo.

Ezibalulekileyo kwaye elinye igatya leyo ubonakalise isiphumo Doppler. Lo mhlaba ubukhulu elithile na ukuphikisana kunye nemithetho ye kwezinto. Isibakala sokuba utshintsho frequency lifezekiswa hayi kuphela ngokushukumisa okanye hayi akwamkele kunye nomthombo imitha, kunye nento yokuba sihamba. Imilinganiselo lubonise ukuba shift frequency imiselwa apho enye into eshukumayo, i buqapheleke, i ezincane divergence yomfumani kunye sesiqhelo icala umthombo kwi intshukumo Velocity otshangatshangiswayo. Enyanisweni, kwiimeko apho kukho nto ibonakalisa isiphumo Doppler, akukho ukuphikisana kunye imfundiso ka alubonisi phezulu, kuba apha kubalulekile nentshukumo yomfumani kunye nomthombo kunye nohlobo intshukumo kwamaza kwindawo eliphakathi elastic apho ihamba.

Nelo futhe Iipropati Doppler ubonisa kwakhona ngokunxulumene ukuze ive amaza imvelaphi, kunye amaza, ngaphandle kokuba kwimeko amaza zobungakanani offset simanga komntu akuxhomekekanga ekuzithandeleni umthombo okanye lihamba receiver.

njani le isiphumo kunokuba abstract, yabona, kunjalo, kulula ngokwaneleyo. Umzekelo, ifuthe Doppler kwi umsindo kubonakala, ukuba ngqo - ukuva, ngexesha xa simi a jam lwezithuthi, uva elidlulayo siren ngezithuthi likaxakeka. Ngokuqinisekileyo bonke iqatshelwe into yokuba ukuba imoto kuyeza - isandi a Siren izandi indlela enye ukuphakama, xa imoto likufikela - isandi siren ngezantsi. It nje engqina amaxabiso utshintsho amaza uphawu ive.

Great ukubaluleka Doppler frequency nendima eyidlalayo radar, ngokumalunga amaza. Ngokusekelwe kulo msebenzi isiphumo zonke radars kunye nezinye izixhobo ukubhaqa lihamba izinto kwiinkalo ezininzi ezahlukeneyo zezinto ezenziwa luluntu.

iimpahla zazo kusetyenziswa iteknoloji zonyango ukuqingqwa yokumpompoza kwegazi, njengoko waziwa kakuhle, nkqubo efana Doppler echocardiography. Ngokwesiseko kwesiphumo Doppler, wakha izixhobo yokukhangela ngenxa neempahla kwamanzi, kunye nokusetyenziswa kwayo bezulu umlinganiselo umoya amandla kunye nesantya intshukumo ye iingqimba zamafu.

Nakuba imilinganiselo yakhe ngeenkwenkwezi usebenzisa ifuthe Doppler. Ngoko ke, lo shift likhulu spectra bezinto ezahlukeneyo yasezulwini, kumiselwa izinga intshukumo kwisithuba, ingakumbi, kanye ngenxa yale nguqu ithe hypothesized ukwandisa iphela.