Hauv cov tshuab kho qhov muag xws li laser ntau, LiDAR, thiab lub hom phiaj lees paub, Er: iav laser transmitters tau siv dav hauv kev siv tub rog thiab pej xeem vim lawv qhov muag kev nyab xeeb thiab kev ntseeg siab. Ntxiv nrog rau lub zog pulse, qhov rov ua dua (ntau zaus) yog qhov tseem ceeb rau kev ntsuas kev ua haujlwm. Nws cuam tshuam rau lub laser's cov lus teb ceev, cov ntaub ntawv tau txais kev ceev, thiab muaj feem xyuam nrog kev tswj xyuas thermal, kev tsim hluav taws xob, thiab kev ruaj ntseg.
1. Dab tsi yog qhov zaus ntawm Laser?
Laser zaus yog hais txog tus naj npawb ntawm cov pulses tawm hauv ib chav tsev ntawm lub sijhawm, feem ntau ntsuas hauv hertz (Hz) lossis kilohertz (kHz). Kuj tseem hu ua tus nqi rov ua dua, nws yog qhov ntsuas kev ua haujlwm tseem ceeb rau cov lasers pulsed.
Piv txwv li: 1 Hz = 1 laser pulse ib ob, 10 kHz = 10,000 laser pulses ib ob. Feem ntau Er: iav lasers ua haujlwm nyob rau hauv hom mem tes, thiab lawv cov zaus txuas nrog rau cov zis waveform, cov qauv qauv, thiab lub hom phiaj echo ua.
2. Ntau zaus ntawm Er: iav Lasers
Nyob ntawm lub laser's structural tsim thiab daim ntawv thov yuav tsum tau, Er: iav laser transmitters muaj peev xwm ua hauj lwm los ntawm ib tug txhaj tshuaj hom (tsawg li 1 Hz) mus txog kaum ntawm kilohertz (kHz). Ntau zaus txhawb nqa ceev scanning, nruam taug qab, thiab cov ntaub ntawv ntom ntom, tab sis lawv kuj ua rau muaj kev xav tau ntau dua ntawm kev siv hluav taws xob, kev tswj xyuas thermal, thiab laser lub neej.
3. Yam tseem ceeb cuam tshuam rau tus nqi rov ua dua
①Pump Source thiab Power Supply Design
Laser diode (LD) cov twj tso kua mis yuav tsum txhawb kev hloov kho siab thiab muab lub zog ruaj khov. Fais fab modules yuav tsum tau teb zoo heev thiab muaj txiaj ntsig los ua haujlwm nquag rau / tawm mus.
②Thermal Management
Qhov siab dua qhov zaus, qhov kub ntau yog generated ib lub sij hawm. Ua kom muaj cua sov ua kom zoo, TEC tswj qhov kub thiab txias, lossis microchannel cua txias qauv pab tswj cov zis ruaj khov thiab txuas ntxiv lub cuab yeej kev pab cuam lub neej.
③Q-Hloov txoj kev
Passive Q-switching (piv txwv li, siv Cr: YAG crystals) feem ntau haum rau cov lasers tsawg zaus, thaum ua haujlwm Q-hloov (xws li, nrog acousto-optic lossis electro-optic modulators xws li Pockels hlwb) ua haujlwm ntau dua nrog kev tswj xyuas.
④Module Tsim
Compact, lub zog-npaum laser lub taub hau tsim kom ntseeg tau tias lub zog pulse yog khaws cia txawm nyob rau hauv high zaus.
4. Ntau zaus thiab daim ntawv thov kev pom zoo
Txawv daim ntawv thov scenarios yuav tsum tau sib txawv ua hauj lwm zaus. Kev xaiv tus nqi rov ua dua yog qhov tseem ceeb los ua kom pom kev ua haujlwm zoo. Hauv qab no yog qee qhov kev siv thiab cov lus pom zoo:
①Tsawg zaus, Siab zog hom (1-20 Hz)
Qhov zoo tshaj plaws rau qhov ntev-ntev laser ntau yam thiab lub hom phiaj tsim, qhov twg nkag mus thiab lub zog ruaj khov yog qhov tseem ceeb.
②Nruab Nrab Zaus, Nruab Nrab Zog Hom (50-500 Hz)
Haum rau kev lag luam ntau yam, navigation, thiab cov tshuab nrog cov kev xav tau nruab nrab.
③Ntau zaus, Tsawg Zog Hom (> 1 kHz)
Qhov zoo tshaj plaws rau LiDAR systems uas suav nrog array scanning, taw tes huab tiam, thiab 3D qauv.
5. Kev Siv Tshuab
Raws li kev koom ua ke ntawm laser txuas ntxiv mus, tiam tom ntej ntawm Er: iav laser transmitters yog hloov zuj zus mus rau hauv cov lus qhia hauv qab no:
①Kev sib txuas ntau dua tus nqi rov qab nrog cov khoom tso tawm ruaj khov
②Kev tsav tsheb ntse thiab dynamic zaus tswj
③Lub teeb yuag thiab kev siv hluav taws xob tsawg
④Dual-control architectures rau ob zaus thiab lub zog, ua kom yooj yim hloov pauv (xws li, scanning / tsom / nrhiav)
6. Cov lus xaus
Kev khiav hauj lwm zaus yog qhov tseem ceeb ntawm kev tsim thiab xaiv ntawm Er: iav laser transmitters. Nws txiav txim siab tsis yog tsuas yog qhov ua tau zoo ntawm cov ntaub ntawv tau txais thiab cov lus tawm tswv yim tab sis tseem cuam tshuam ncaj qha rau kev tswj xyuas thermal thiab laser lifespan. Rau cov neeg tsim khoom, nkag siab qhov sib npaug ntawm zaus thiab lub zog—thiab xaiv cov kev txwv uas haum rau cov ntawv thov tshwj xeeb—yog tus yuam sij rau optimizing system kev ua tau zoo.
Xav tias dawb hu rau peb kom paub ntau ntxiv txog peb ntau yam ntawm Er: iav laser transmitter khoom nrog ntau zaus thiab specifications. Peb'rov tuaj ntawm no los pab koj ua tau raws li koj cov kev xav tau hauv kev ua haujlwm xws li LiDAR, kev taw qhia, thiab kev siv tiv thaiv.
Post lub sij hawm: Aug-05-2025