Momwe Laser Ranging Imagwirira Ntchito

Malinga ndi mfundo yoyambira, pali mitundu iwiri ya njira zoyambira za laser: nthawi yowuluka (TOF) yoyambira komanso yosakhala nthawi yaulendo. Palipulsed laser kuyambirandi laser-based laser kuyambira nthawi yakuuluka.

Pulse rangeing ndi njira yoyezera yomwe idagwiritsidwa ntchito koyamba pofufuza ndi kupanga mapu ndiukadaulo wa laser. Chifukwa laser divergence angle ndi yaying'ono, nthawi ya laser pulse ndi yaifupi kwambiri, ndipo mphamvu yanthawi yomweyo ndi yayikulu kwambiri, chifukwa chake imatha kufikira kutalika kwambiri. Kawirikawiri, cholinga chogwirizanitsa sichikugwiritsidwa ntchito, koma kufalikira kwa chizindikiro cha kuwala ndi cholinga choyezera kumagwiritsidwa ntchito poyesa mtunda.

Mfundo ya pulsed rangeing njira imamveka bwino. Wotchi yothamanga kwambiri imayendetsa kauntala kuti iwerenge nthawi pakati pa kutumiza ndi kulandira ma pulse, zomwe zimapangitsa kuti nthawi yowerengera ikhale yaying'ono kwambiri kuposa nthawi yomwe ili pakati pa kutumiza ndi kulandira ma pulse kuti zitsimikizire kulondola kokwanira, kotero njira yoyambira iyi ndi yoyenera kwa nthawi yayitali- kuyeza mtunda.

Mbali yotulutsa ya laser pulsed ndi yaying'ono, mphamvu imakhazikika mumlengalenga, ndipo mphamvu yanthawi yomweyo ndi yayikulu. Kugwiritsa ntchito makhalidwe amenewa, osiyanasiyana sing'anga ndi mtunda wautalilaser rangefinders, lidars, etc. akhoza kupangidwa. Pakali pano, pulsed laser kuyambira muyeso wa topographic ndi geomorphological, kufufuza nthaka, kuyeza zomangamanga zomangamanga, muyeso wa kutalika kwa ndege, magalimoto ndi zopinga zolepheretsa,muyeso wa mtunda wa mafakitalendi zina zaukadaulo.

Phase laser kuyambirandikugwiritsa ntchito mafupipafupi a gulu la wailesi kuti asinthe matalikidwe a mtengo wa laser ndikuyesa kuchedwa kwa gawo komwe kumapangidwa ndi kuwala kosinthika kupita mmbuyo ndi mtsogolo ku mzere woyezera, kenako kutembenuza mtunda woimiridwa ndi kuchedwa kwa gawo malinga ndi kutalika kwa mawonekedwe. wa kuwala modulated. Izi zikutanthauza kuti, nthawi yofunikira kuti kuwala kuyendere uku ndi uku kudzera pamzere wofufuzira imayesedwa ndi njira ina. Phase laser kuyambira nthawi zambiri amagwiritsidwa ntchito m'munda wolondola kwambiri. Chifukwa cha kulondola kwake kwakukulu, kawirikawiri mu dongosolo la millimeters, kuti awonetsere bwino chizindikirocho ndikuchepetsa chandamale choyezera ku mfundo inayake yogwirizana ndi kulondola kwa chida, chipangizo choyambira ichi chimakhala ndi chiwonetsero chotchedwa cooperative chandamale. mbale.

Gawo la laser kuyambira nthawi zambiri limakhala loyenera kuyeza mtunda waufupi komanso wapakati, ndipo kuyeza kwake kumatha kufika mamilimita. Iyinso ndi njira yomwe ili yolondola kwambiri pakalipano. Kuyambira kwa gawo ndikuwongolera mphamvu ya kuwala kwa mafunde otulutsa kuwala ndi chizindikiro chosinthidwa, ndikuyesa nthawi mosadukiza poyesa kusiyana kwa gawo, komwe kumakhala kovuta kwambiri kuposa kuyeza mwachindunji nthawi yaulendo wobwerera.

Ngati mukufuna kudziwa zambiri zaukadaulo ndi zinthu zokhudzana ndi kuyambira kwa laser, chonde titumizireni.

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