M'mawonekedwe a kuwala monga laser rangeing, LiDAR, ndi kuzindikira chandamale, Er: Magalasi otumizira magalasi amagwiritsidwa ntchito kwambiri pazochitika zankhondo ndi za anthu wamba chifukwa cha chitetezo cha maso ndi kudalirika kwakukulu. Kuphatikiza pa kugunda kwamphamvu, kuchuluka kwa kubwereza (ma frequency) ndikofunikira kwambiri pakuwunika momwe ntchito ikuyendera. Zimakhudza laser's liwiro la kuyankha, kachulukidwe ka data, ndipo imagwirizana kwambiri ndi kasamalidwe ka kutentha, kapangidwe ka magetsi, komanso kukhazikika kwadongosolo.
1. Kodi Ma frequency a Laser ndi otani?
Mafupipafupi a laser amatanthauza kuchuluka kwa ma pulse omwe amatulutsidwa pa nthawi imodzi, yomwe imayesedwa mu hertz (Hz) kapena kilohertz (kHz). Imadziwikanso kuti kuchuluka kwa kubwereza, ndi chizindikiro chofunikira kwambiri cha ma lasers othamanga.
Mwachitsanzo: 1 Hz = 1 laser pulse pamphindikati, 10 kHz = 10,000 laser pulse pamphindikati. Zambiri Er:Magalasi agalasi amagwira ntchito mumayendedwe a pulsed, ndipo ma frequency awo amalumikizidwa kwambiri ndi mawonekedwe otulutsa, sampling system, ndi target echo processing.
2. Common Frequency Range of Er:Magalasi a Magalasi
Kutengera ndi laser'Mapangidwe apangidwe ndi zofunikira pakugwiritsa ntchito, Er: Ma transmitters agalasi agalasi amatha kugwira ntchito kuchokera pakuwombera kamodzi (kutsika mpaka 1 Hz) mpaka makumi a kilohertz (kHz). Ma frequency apamwamba amathandizira kusanthula mwachangu, kutsata mosalekeza, komanso kupeza zambiri za data, komanso kumapangitsa kuti pakhale zofunikira kwambiri pakugwiritsa ntchito mphamvu, kuyang'anira kutentha, komanso moyo wa laser.
3. Zinthu Zofunika Kwambiri Zokhudza Kubwerezabwereza
①Pump Source ndi Power Supply Design
Magwero a mapampu a laser diode (LD) ayenera kuthandizira kusinthasintha kothamanga komanso kupereka mphamvu yokhazikika. Ma module amphamvu ayenera kukhala omvera kwambiri komanso ogwira mtima kuti azitha kuyendetsa pafupipafupi / kuzimitsa.
②Thermal Management
Kukwera kwafupipafupi, kutentha kumapangidwa pa nthawi ya unit. Masinki otenthetsera bwino, kuwongolera kutentha kwa TEC, kapena zida zoziziritsa za microchannel zimathandizira kutulutsa kokhazikika ndikukulitsa moyo wautumiki wa chipangizochi.
③Q-Switching Njira
Passive Q-switching (mwachitsanzo, kugwiritsa ntchito makhiristo a Cr:YAG) nthawi zambiri amakhala oyenera ma laser otsika, pomwe ma Q-switching (mwachitsanzo, okhala ndi ma acousto-optic kapena ma electro-optic modulators monga ma cell a Pockels) amathandizira magwiridwe antchito apamwamba kwambiri ndikuwongolera kosinthika.
④Module Design
Mapangidwe apamutu a laser ophatikizika, osapatsa mphamvu mphamvu amatsimikizira kuti mphamvu ya pulse imasungidwa ngakhale pama frequency apamwamba.
4. Mafupipafupi ndi Kugwiritsa Ntchito Mafananidwe Malangizo
Zochitika zosiyanasiyana zogwiritsira ntchito zimafuna maulendo osiyanasiyana ogwiritsira ntchito. Kusankha kubwereza koyenera ndikofunikira kuti muwonetsetse kuti mukuchita bwino. M'munsimu muli zina zomwe zimagwiritsidwa ntchito nthawi zambiri komanso zovomerezeka:
①Kutsika Kwambiri, Njira Yamphamvu Yamphamvu (1-20Hz)
Ndikoyenera kwa ma laser aatali oyambira komanso mawonekedwe a chandamale, pomwe kulowa ndi kukhazikika kwamphamvu ndikofunikira.
②Mafupipafupi Apakati, Mayendedwe Amphamvu Apakati (50-500Hz)
Oyenera kutengera mafakitale, kuyenda, ndi machitidwe omwe ali ndi zofunikira pafupipafupi.
③Kuthamanga Kwambiri, Mphamvu Zochepa (> 1 kHz)
Zoyenera kwambiri pamakina a LiDAR ophatikizira kusanja kosiyanasiyana, kupanga ma point cloud, ndi 3D modelling.
5. Zochitika Zamakono
Pamene kuphatikiza kwa laser kukupitilirabe, m'badwo wotsatira wa Er:Glass transmitters ukuyenda motere:
①Kuphatikizira kubwereza kwapamwamba ndi kutulutsa kokhazikika
②Kuyendetsa mwanzeru komanso kuwongolera pafupipafupi
③Mapangidwe opepuka komanso osagwiritsa ntchito mphamvu zochepa
④Zomanga ziwiri zowongolera pafupipafupi komanso mphamvu, zomwe zimathandizira kusintha kosinthika (mwachitsanzo, kusanthula / kuyang'ana / kutsatira)
6. Mapeto
Mafupipafupi ogwiritsira ntchito ndi gawo lalikulu pakupanga ndi kusankha kwa Er: Glass laser transmitters. Simangodziwa momwe kapezedwera deta komanso mayankho amachitidwe amakhudzidwira komanso zimakhudza mwachindunji kasamalidwe kamafuta ndi nthawi yayitali ya laser. Kwa opanga, kumvetsetsa bwino pakati pa ma frequency ndi mphamvu-ndikusankha magawo omwe amagwirizana ndi pulogalamuyo-ndizofunikira pakuwongolera magwiridwe antchito adongosolo.
Khalani omasuka kulankhula nafe kuti mudziwe zambiri zamitundu yathu yosiyanasiyana ya Er:Glass laser transmitter yokhala ndi ma frequency ndi mawonekedwe osiyanasiyana. Ife'bwerani kukuthandizani kuti mukwaniritse zosowa zanu zamaluso pakuyambira, LiDAR, kusakatula, ndi kugwiritsa ntchito chitetezo.
Nthawi yotumiza: Aug-05-2025