Ezinhlelweni zokubona ezifana ne-laser ranging, i-LiDAR, kanye nokuqashelwa kwethagethi, ama-Er:Glass laser transmitters asetshenziswa kabanzi kokubili kwezempi kanye nezinhlelo zokusebenza zomphakathi ngenxa yokuphepha kwamehlo awo kanye nokuthembeka okuphezulu. Ngaphezu kwamandla okushaya kwenhliziyo, izinga lokuphindaphinda (imvamisa) liyipharamitha ebalulekile yokuhlola ukusebenza. Lithinta i-laser'isivinini sempendulo, ubuningi bokutholwa kwedatha, futhi kuhlobene eduze nokuphathwa kokushisa, ukwakheka kokunikezwa kwamandla, kanye nokuqina kwesistimu.
1. Iyini imvamisa ye-laser?
Imvamisa ye-laser ibhekisela enanini lama-pulse akhishwa ngeyunithi yesikhathi, ngokuvamile alinganiswa nge-hertz (Hz) noma i-kilohertz (kHz). Eyaziwa nangokuthi izinga lokuphindaphinda, iyinkomba yokusebenza ebalulekile yama-pulse lasers.
Isibonelo: 1 Hz = 1 i-laser pulse ngomzuzwana, 10 kHz = 10,000 i-laser pulses ngomzuzwana. Iningi lama-laser e-Er:Glass asebenza ngemodi ye-pulsed, futhi imvamisa yawo ihlobene kakhulu ne-output waveform, i-system sampling, kanye ne-target echo processing.
2. Ububanzi Obuvamile Bemvamisa Ye-Er: Ama-Laser Engilazi
Kuye nge-laser'Ngokuphathelene nomklamo wesakhiwo kanye nezidingo zohlelo lokusebenza, ama-Er:Glass laser transmitters angasebenza kusukela kumodi yokudubula okukodwa (ephansi njenge-1 Hz) kuze kufike kumashumi ama-kilohertz (kHz). Amaza aphezulu asekela ukuskena okusheshayo, ukulandelela okuqhubekayo, kanye nokutholwa kwedatha eningi, kodwa futhi abeka izidingo eziphakeme ekusetshenzisweni kwamandla, ukuphathwa kokushisa, kanye nokuphila kwesikhathi se-laser.
3. Izici Eziyinhloko Ezithinta Izinga Lokuphindaphinda
①Umklamo Womthombo Wephampu Nokunikezwa Kwamandla
Imithombo yephampu ye-laser diode (LD) kumele isekele ukuguqulwa kwesivinini esikhulu futhi inikeze amandla azinzile. Amamojula kagesi kufanele aphendule kahle futhi asebenze kahle ekusingatheni imijikelezo yokuvula/yokuvala njalo.
②Ukuphathwa Kokushisa
Uma imvamisa iphakeme, kulapho kukhishwa khona ukushisa okuningi ngeyunithi ngayinye. Ama-heat sink asebenza kahle, ukulawulwa kokushisa kwe-TEC, noma izakhiwo zokupholisa ze-microchannel zisiza ukugcina umkhiqizo ozinzile futhi zandise impilo yesevisi yedivayisi.
③Indlela Yokushintsha i-Q
Ukushintsha kwe-Q okungasebenzisi i-Passive (isb., ukusebenzisa amakristalu e-Cr:YAG) ngokuvamile kufaneleka kuma-laser anemvamisa ephansi, kuyilapho ukushintsha kwe-Q okusebenzayo (isb., ngama-modulators e-acousto-optic noma e-electro-optic afana namaseli e-Pockels) kwenza ukusebenza kwemvamisa ephezulu kube nokulawula okuhleliwe.
④Umklamo Wemojuli
Imiklamo yekhanda le-laser eyinkimbinkimbi neyonga amandla iqinisekisa ukuthi amandla okushaya kwenhliziyo agcinwa ngisho noma kumaza aphezulu.
4. Izincomo Zokufaniswa Kwemvamisa Nokusetshenziswa
Izimo ezahlukene zohlelo lokusebenza zidinga amaza okusebenza ahlukene. Ukukhetha izinga lokuphindaphinda elifanele kubalulekile ekuqinisekiseni ukusebenza okuhle kakhulu. Ngezansi kunezinye izimo zokusetshenziswa ezivamile kanye nezincomo:
①Imvamisa Ephansi, Imodi Yamandla Aphezulu (1)–20 Hz)
Kuhle kakhulu ekuhlukaniseni kwe-laser yebanga elide kanye nokuqokwa kwethagethi, lapho ukungena kanye nokuqina kwamandla kubalulekile.
②Imvamisa Ephakathi, Imodi Yamandla Ephakathi (50)–500 Hz)
Ifanelekela ukuzulazula kwezimboni, ukuzulazula, kanye nezinhlelo ezinezidingo zemvamisa ephakathi nendawo.
③Imvamisa Ephakeme, Imodi Yamandla Aphansi (>1 kHz)
Ifaneleka kakhulu izinhlelo ze-LiDAR ezifaka phakathi ukuskena kwe-array, ukukhiqizwa kwamafu ephuzu, kanye nokumodela kwe-3D.
5. Izitayela Zobuchwepheshe
Njengoba ukuhlanganiswa kwe-laser kuqhubeka nokuthuthuka, isizukulwane esilandelayo sama-Er:Glass laser transmitters siyashintsha ngezindlela ezilandelayo:
①Ukuhlanganisa amazinga aphezulu okuphindaphinda nomphumela ozinzile
②Ukushayela okuhlakaniphile nokulawula imvamisa enamandla
③Idizayini elula futhi esetshenziswa ngamandla aphansi
④Ukwakhiwa kokulawula okubili kokubili imvamisa namandla, okuvumela ukushintshashintsha kwemodi okuguquguqukayo (isb., ukuskena/ukugxila/ukulandelela)
6. Isiphetho
Imvamisa yokusebenza iyipharamitha eyinhloko ekwakhiweni nasekukhethweni kwama-transmitter e-laser e-Er:Glass. Ayinqumi nje kuphela ukusebenza kahle kokutholwa kwedatha kanye nempendulo yesistimu kodwa futhi ithinta ngqo ukuphathwa kokushisa kanye nesikhathi sokuphila se-laser. Kwabathuthukisi, ukuqonda ibhalansi phakathi kwemvamisa namandla—kanye nokukhetha amapharamitha afanela uhlelo lokusebenza oluthile—kuyisihluthulelo sokwenza ngcono ukusebenza kwesistimu.
Zizwe ukhululekile ukuxhumana nathi ukuze ufunde kabanzi mayelana nohlu lwethu olubanzi lwemikhiqizo yokudlulisa i-laser ye-Er:Glass enemvamisa ehlukahlukene kanye nemininingwane.'Silapha ukuzokusiza uhlangabezane nezidingo zakho zobungcweti ekuhleleni, ekuqondiseni i-LiDAR, ekuzulazuleni, kanye nasezinhlelweni zokuvikela.
Isikhathi sokuthunyelwe: Agasti-05-2025