Kumasistimu okubonayo afana ne-laser range, i-LiDAR, nokuqashelwa okuqondiwe, i-Er:Izidluliseli ze-laser zengilazi zisetshenziswa kakhulu kukho kokubili izinhlelo zokusebenza zezempi nezomphakathi ngenxa yokuphepha kwazo kwamehlo nokuthembeka okuphezulu. Ngaphezu kwamandla okushaya kwenhliziyo, izinga lokuphindaphinda (imvamisa) liyipharamitha ebalulekile yokuhlola ukusebenza. Ithinta i-laser's isivinini sokuphendula, ukuminyana kokutholwa kwedatha, futhi ihlobene eduze nokuphathwa kwe-thermal, idizayini yokunikezwa kwamandla, nokuzinza kwesistimu.
1. Iyini Imvamisa Ye-Laser?
Imvamisa ye-laser ibhekisela enanini lama-pulses akhishwa ngeyunithi ngayinye yesikhathi, ngokuvamile ikalwa nge-hertz (Hz) noma i-kilohertz (kHz). Eyaziwa nangokuthi izinga lokuphindaphinda, iyinkomba yokusebenza eyinhloko yama-laser ashayayo.
Isibonelo: 1 Hz = 1 i-laser pulse ngomzuzwana, 10 kHz = 10,000 laser pulses ngomzuzwana. Iningi le-Er:Ama-laser engilazi asebenza ngemodi ye-pulsed, futhi imvamisa yawo ixhumene eduze ne-waveform ephumayo, amasampula esistimu, kanye nokucubungula kwe-echo okuqondiwe.
2. Ibanga Lemvamisa Elivamile le-Er:Ama-Glass Lasers
Kuye nge-laser'Idizayini yesakhiwo kanye nezidingo zohlelo lokusebenza, Er:Izidlulisi ze-laser zengilazi zingasebenza ukusuka kumodi yokushutha okukodwa (okuphansi njengo-1 Hz) kufika emashumini e-kilohertz (kHz). Amafrikhwensi aphezulu asekela ukuskena okusheshayo, ukulandelela okuqhubekayo, nokutholwa kwedatha eminyene, kodwa futhi abeka izidingo eziphakeme ekusebenziseni amandla, ukuphathwa okushisayo, kanye nempilo yonke ye-laser.
3. Izinto Ezibalulekile Ezithinta Izinga Lokuphindaphinda
①Umthombo Wephampu kanye Nomklamo Wokuhlinzeka Ngamandla
Imithombo yephampu ye-laser diode (LD) kufanele isekele ukushintshashintsha kwesivinini esiphezulu futhi inikeze amandla azinzile. Amamojula wamandla kufanele aphendule kakhulu futhi asebenze kahle ukuphatha imijikelezo evamile yokuvula/yokuvala.
②Ukuphatha Okushisayo
Lapho imvamisa iphezulu, kukhiqizwa ukushisa okwengeziwe ngesikhathi seyunithi ngayinye. Amasinki okushisa asebenzayo, ukulawulwa kwezinga lokushisa kwe-TEC, noma izakhiwo zokupholisa ze-microchannel zisiza ukugcina okukhiphayo okuzinzile nokwelula impilo yesevisi yedivayisi.
③Q-Ukushintsha Indlela
I-Passive Q-switching (isb, ukusebenzisa amakristalu e-Cr:YAG) ngokuvamile ifaneleka ama-laser anemvamisa ephansi, kuyilapho i-Q-switching esebenzayo (isb., ngamamojula we-acousto-optic noma ama-electro-optic afana namaseli e-Pockels) kunika amandla ukusebenza kwefrikhwensi ephezulu ngokulawula okuhlelekayo.
④I-Module Design
Imiklamo yekhanda ye-laser ehlangene, eyonga amandla iqinisekisa ukuthi amandla okushaya kwenhliziyo ayagcinwa noma kumaza aphezulu.
4. Izincomo Zokufanisa Imvamisa kanye Nezicelo
Izimo zohlelo lokusebenza ezihlukene zidinga amaza okusebenza ahlukene. Ukukhetha izinga lokuphindaphinda elilungile kubalulekile ukuze kuqinisekiswe ukusebenza kahle. Ngezansi ezinye izimo ezivamile zokusetshenziswa nezincomo:
①Imvamisa ephansi, Imodi Yamandla Aphezulu (1-20Hz)
Ilungele ukuhluka kwe-laser yebanga elide nokuqokwa okuqondisiwe, lapho ukungena nokuzinza kwamandla kubalulekile.
②Imvamisa Emaphakathi, Imodi Yamandla Amaphakathi (50-500Hz)
Ifanele ububanzi bezimboni, ukuzulazula, namasistimu anezidingo zokuvama okumaphakathi.
③Imvamisa ephezulu, Imodi Yamandla Aphansi (>1 kHz)
Ifaneleka kakhulu izinhlelo ze-LiDAR ezibandakanya ukuskena kwamalungu afanayo, ukukhiqizwa kwamafu okukhomba, nokumodela kwe-3D.
5. Amathrendi Ezobuchwepheshe
Njengoba ukuhlanganiswa kwe-laser kuqhubeka nokuthuthuka, isizukulwane esilandelayo se-Er:Glass laser transmitters sithuthuka ngalezi zikhombisi-ndlela ezilandelayo:
①Ukuhlanganisa izilinganiso eziphakeme zokuphindaphinda nokuphumayo okuzinzile
②Ukushayela okuhlakaniphile nokulawula imvamisa okuguquguqukayo
③Idizayini yokusebenzisa amandla angasindi futhi aphansi
④Izakhiwo ezilawula kabili zazo zombili imvamisa namandla, zivumela ukushintsha kwemodi eguquguqukayo (isb, ukuskena/ukugxila/ukulandelela)
6. Isiphetho
Imvamisa yokusebenza ipharamitha ewumgogodla ekwakhiweni nasekukhethweni kwe-Er:Glass laser transmitters. Ayinqumi kuphela ukusebenza kahle kokutholwa kwedatha kanye nempendulo yesistimu kodwa futhi ithinta ngokuqondile ukuphathwa kokushisa nempilo ye-laser. Konjiniyela, ukuqonda ibhalansi phakathi kwefrikhwensi namandla-bese ukhetha amapharamitha afanele uhlelo oluthile-kuyisihluthulelo sokuthuthukisa ukusebenza kwesistimu.
Zizwe ukhululekile ukusithinta ukuze ufunde kabanzi mayelana nohlu lwethu olubanzi lwemikhiqizo ye-Er:Glass laser transmitter enamaza ahlukahlukene kanye nezicaciso. Thina'silapha ukuze sikusize uhlangabezane nezidingo zakho zobungcweti ku-range, LiDAR, navigation, kanye nezinhlelo zokusebenza zokuvikela.
Isikhathi sokuthumela: Aug-05-2025