Los ntawm qhov ntxov tshaj plaws ToF modules rau lidar mus rau DMS tam sim no, lawv txhua tus siv lub ze-infrared band:
TOF module (850nm / 940nm)
LiDAR (905nm / 1550nm)
DMS/OMS (940nm)
Tib lub sijhawm, lub qhov rais kho qhov muag yog ib feem ntawm txoj kev kho qhov muag ntawm tus ntes / txais. Nws lub luag haujlwm tseem ceeb yog los tiv thaiv cov khoom thaum kis lub laser ntawm ib lub wavelength tshwj xeeb emitted los ntawm lub laser qhov chaw, thiab sau cov coj reflected lub teeb tsis nyob rau hauv lub qhov rais.
Lub qhov rais no yuav tsum muaj cov haujlwm hauv qab no:
1. Visually tshwm dub los npog cov khoom siv optoelectronic tom qab lub qhov rais;
2. Lub zuag qhia tag nrho nto reflectivity ntawm lub qhov rais optical yog tsawg thiab yuav tsis ua kom pom tseeb xav;
3. Nws muaj kev xa tawm zoo rau lub laser band. Piv txwv li, rau feem ntau 905nm laser ntes, qhov kev xa tawm ntawm lub qhov rais hauv 905nm band tuaj yeem ncav cuag ntau dua 95%.
4. Lim teeb pom kev zoo, txhim kho lub teeb liab-rau-suab nrov piv ntawm lub kaw lus, thiab txhim kho qhov muaj peev xwm nrhiav tau ntawm lidar.
Txawm li cas los xij, LiDAR thiab DMS yog ob qho khoom siv tsheb, yog li yuav ua li cas cov khoom siv lub qhov rais tuaj yeem ua tau raws li qhov yuav tsum tau muaj kev ntseeg tau zoo, kev xa tawm siab ntawm lub teeb ci band, thiab cov tsos dub tau dhau los ua teeb meem.
01. Cov ntsiab lus ntawm qhov kev daws teeb meem tam sim no ntawm kev ua lag luam
Muaj peb hom:
Hom 1: Lub substrate yog ua los ntawm cov khoom siv infrared
Cov khoom siv no yog xim dub vim tias nws tuaj yeem nqus pom lub teeb thiab xa cov kab nyob ze-infrared, nrog rau kev xa tawm ntawm li 90% (xws li 905nm nyob ze-infrared band) thiab tag nrho qhov cuam tshuam txog li 10%.
Cov khoom siv no tuaj yeem siv infrared siab pob tshab resin substrates, xws li Bayer Makrolon PC 2405, tab sis cov resin substrate muaj kev sib txuas tsis zoo nrog cov yeeb yaj kiab kho qhov muag, tsis tuaj yeem tiv taus qhov hnyav ib puag ncig kev sim, thiab tsis tuaj yeem plated nrog ITO pob tshab Conductive zaj duab xis (siv rau hluav taws xob thiab defogging) feem ntau yog siv rau hauv cov khoom siv tsis zoo. radar khoom qhov rais uas tsis xav tau cua sov.
Koj tuaj yeem xaiv SCHOTT RG850 lossis Suav HWB850 iav dub, tab sis tus nqi ntawm hom iav dub no yog siab. Noj HWB850 iav ua piv txwv, nws tus nqi yog ntau dua 8 npaug ntawm cov iav kho qhov muag zoo tib yam, thiab feem ntau ntawm cov khoom lag luam no tsis tuaj yeem dhau ROHS tus qauv thiab yog li tsis tuaj yeem siv rau lub qhov rais loj-tsim lidar.
Hom 2: siv infrared transmissive number case
Hom infrared penetrating number case no absorbs pom lub teeb thiab muaj peev xwm kis tau ze-infrared bands, nrog ib tug transmittance ntawm li 80% mus rau 90%, thiab tag nrho transmittance theem yog tsawg. Ntxiv mus, tom qab tus number case tau ua ke nrog cov khoom siv kho qhov muag, cov huab cua tiv thaiv tsis tuaj yeem dhau qhov kev xav tau ntawm kev tsav tsheb nruj (xws li kev ntsuas kub siab), yog li infrared nkag mus inks feem ntau yog siv rau lwm cov khoom uas tsis tshua muaj huab cua tiv thaiv xws li cov xov tooj ntse thiab cov koob yees duab infrared.
Hom 3: siv dub coated optical lim
Cov lim dej coated dub yog lub lim uas tuaj yeem thaiv lub teeb pom kev thiab muaj kev xa tawm siab ntawm NIR band (xws li 905nm).
Cov lim dej dub coated yog tsim nrog silicon hydride, silicon oxide thiab lwm yam ntaub ntawv nyias nyias, thiab npaj siv cov tshuab magnetron sputtering. Nws yog tus cwj pwm los ntawm kev ua haujlwm ruaj khov thiab txhim khu kev qha thiab tuaj yeem ua haujlwm loj. Tam sim no, cov xim dub optical lim cov yeeb yaj kiab feem ntau siv cov qauv zoo ib yam li cov yeeb yaj kiab-txiav. Nyob rau hauv cov pa silicon hydride magnetron sputtering zaj duab xis tsim txheej txheem, qhov kev txiav txim siab ib txwm yog los txo qhov nqus ntawm silicon hydride, tshwj xeeb tshaj yog qhov nqus ntawm qhov ze-infrared band, kom ntseeg tau tias muaj kev sib kis tau zoo hauv 905nm band lossis lwm lidar bands xws li 1550nm.
Post lub sij hawm: Nov-22-2024
