Mu ukadaulo wamakono wa optoelectronic, ma laser a semiconductor amaonekera bwino chifukwa cha kapangidwe kake kakang'ono, kugwira ntchito bwino kwambiri, komanso kuyankha mwachangu. Amagwira ntchito yofunika kwambiri m'magawo monga kulumikizana, chisamaliro chaumoyo, kukonza mafakitale, ndi kuzindikira/kusinthasintha. Komabe, pokambirana za magwiridwe antchito a ma laser a semiconductor, gawo limodzi looneka ngati losavuta koma lofunika kwambiri—ntchito yozungulira—nthawi zambiri limanyalanyazidwa. Nkhaniyi ikuyang'ana kwambiri lingaliro, kuwerengera, tanthauzo, ndi kufunika kogwira ntchito kwa ntchito yozungulira mu makina a laser a semiconductor.
1. Kodi Kuyenda kwa Ntchito N'chiyani?
Duty cycle ndi chiŵerengero chopanda dimension chomwe chimagwiritsidwa ntchito kufotokoza kuchuluka kwa nthawi yomwe laser ili mu "on" mkati mwa nthawi imodzi ya chizindikiro chobwerezabwereza. Nthawi zambiri imafotokozedwa ngati peresenti. Fomula ndi iyi: Duty Cycle=(Pulse Width/Nthawi ya Kugunda) × 100%. Mwachitsanzo, ngati laser imatulutsa kugunda kwa 1-microsecond pa microsecond iliyonse 10, nthawi yogwira ntchito ndi iyi: (1 μs/10 μs)×100%=10%.
2. N’chifukwa Chiyani Kuyenda kwa Ntchito N’kofunika?
Ngakhale kuti ndi chiŵerengero chabe, kayendedwe ka ntchito kamakhudza mwachindunji kayendetsedwe ka kutentha kwa laser, nthawi yogwira ntchito, mphamvu yotulutsa, ndi kapangidwe ka dongosolo lonse. Tiyeni tigawane kufunika kwake:
① Kusamalira Kutentha ndi Chipangizo Moyo Wonse
Mu ntchito zoyendetsedwa ndi ma pulse amphamvu kwambiri, nthawi yochepa yogwirira ntchito imatanthauza nthawi yayitali "yopuma" pakati pa ma pulse, zomwe zimathandiza kuti laser izizire. Izi ndizothandiza makamaka pakugwiritsa ntchito mphamvu zambiri, komwe kuwongolera nthawi yogwirira ntchito kungachepetse kupsinjika kwa kutentha ndikuwonjezera moyo wa chipangizocho.
② Mphamvu Yotulutsa ndi Kulamulira Mphamvu Yowonekera
Kuzungulira kwa ntchito yapamwamba kumabweretsa kutulutsa kwapakati kwa kuwala, pomwe kuzungulira kwa ntchito yochepa kumachepetsa mphamvu yapakati. Kusintha kayendedwe ka ntchito kumalola kusintha mphamvu yotulutsa popanda kusintha mphamvu ya peak drive.
③ Kuyankha kwa Dongosolo ndi Kusintha kwa Chizindikiro
Mu machitidwe olumikizirana ndi kuwala ndi LiDAR, kayendedwe ka ntchito kamakhudza mwachindunji nthawi yoyankhira ndi njira zosinthira. Mwachitsanzo, mu pulsed laser ranging, kukhazikitsa kayendedwe koyenera ka ntchito kumathandizira kuzindikira chizindikiro cha echo, ndikuwonjezera kulondola kwa muyeso komanso pafupipafupi.
3. Zitsanzo za Kugwiritsa Ntchito Nthawi Yogwira Ntchito
① LiDAR (Kuzindikira ndi Kuyang'ana kwa Laser)
Mu ma module a laser a 1535nm, kasinthidwe ka kugunda kwa mtima kosagwira ntchito kwambiri komanso kokwera kwambiri nthawi zambiri kamagwiritsidwa ntchito kuonetsetsa kuti maso azitha kuzindikira kutali komanso kuti maso awo akhale otetezeka. Nthawi zambiri ma circuit cycle amayendetsedwa pakati pa 0.1% ndi 1%, kulinganiza mphamvu ya peak yapamwamba ndi ntchito yotetezeka komanso yozizira.
② Ma laser a Zachipatala
Mu ntchito monga chithandizo cha khungu kapena opaleshoni ya laser, machitidwe osiyanasiyana a ntchito amabweretsa zotsatira zosiyanasiyana za kutentha ndi zotsatira zochiritsira. Machitidwe amphamvu a ntchito amayambitsa kutentha kosalekeza, pomwe machitidwe ochepa a ntchito amathandiza kuchotsedwa kwa mpweya nthawi yomweyo.
③ Kukonza Zinthu Zamakampani
Pa kuyika chizindikiro ndi kuwotcherera pogwiritsa ntchito laser, kayendedwe ka ntchito kamakhudza momwe mphamvu imayikidwa mu zipangizo. Kusintha kayendedwe ka ntchito ndikofunikira kwambiri powongolera kuya kwa cholembera ndi kulowa kwa kuwotcherera.
4. Kodi Mungasankhe Bwanji Nthawi Yoyenera Yogwirira Ntchito?
Kuchuluka kwa ntchito yabwino kwambiri kumadalira pa ntchito yeniyeni ndi mawonekedwe a laser:
①Kuyenda Kochepa kwa Ntchito (<10%)
Zabwino kwambiri pakugwiritsa ntchito ma pulse afupi komanso okwera kwambiri monga kuyika chizindikiro pa ranking kapena kulondola.
②Nthawi Yogwira Ntchito Yapakati (10%–50%)
Yoyenera makina a laser obwerezabwereza.
③Kuzungulira Kwambiri (>50%)
Kuyandikira ntchito ya mafunde osalekeza (CW), yomwe imagwiritsidwa ntchito m'mapulogalamu monga kupompa kwa kuwala ndi kulumikizana.
Zinthu zina zofunika kuziganizira ndi monga kuthekera kotulutsa kutentha, magwiridwe antchito a driver circuit, komanso kukhazikika kwa kutentha kwa laser.
5. Mapeto
Ngakhale kuti ndi yaying'ono, nthawi yogwirira ntchito ndi gawo lofunika kwambiri pakupanga makina a laser a semiconductor. Sizimakhudza kokha ntchito yogwira ntchito komanso kukhazikika kwa nthawi yayitali komanso kudalirika kwa makinawo. Pakukonza ndi kugwiritsa ntchito laser mtsogolo, kuwongolera molondola komanso kugwiritsa ntchito mosavuta nthawi yogwirira ntchito kudzakhala kofunikira kwambiri pakukweza magwiridwe antchito a makinawo ndikupangitsa kuti pakhale zatsopano.
Ngati muli ndi mafunso ambiri okhudza kapangidwe ka laser parameter kapena mapulogalamu, musazengereze kulankhula nafe kapena kusiya ndemanga. Tili pano kuti tikuthandizeni!
Nthawi yotumizira: Julayi-09-2025