Kuyambira ma module akale a ToF mpaka lidar mpaka DMS yapano, onse amagwiritsa ntchito gulu lapafupi la infrared:
TOF module (850nm/940nm)
LiDAR (905nm/1550nm)
DMS/OMS (940nm)
Panthawi imodzimodziyo, zenera la kuwala ndi gawo la njira ya kuwala kwa detector / receiver. Ntchito yake yayikulu ndikuteteza chinthucho ndikutumiza ma laser a wavelength inayake yomwe imatulutsidwa ndi gwero la laser, ndikusonkhanitsa mafunde ofananirako owunikira kudzera pazenera.
Zenerali liyenera kukhala ndi ntchito zotsatirazi:
1. Zowoneka zakuda kuphimba zida za optoelectronic kuseri kwa zenera;
2. Chiwonetsero chonse cha pamwamba pa zenera la kuwala ndi chochepa ndipo sichidzachititsa kuwonetseratu;
3. Ili ndi transmittance yabwino kwa gulu la laser. Mwachitsanzo, pa chowunikira chodziwika bwino cha 905nm laser, ma transmittance a zenera mu bandi ya 905nm amatha kufikira kupitilira 95%.
4. Sefa kuwala koyipa, sinthani chiŵerengero cha ma signal-to-phokoso a dongosolo, ndi kupititsa patsogolo luso lozindikira la lidar.
Komabe, LiDAR ndi DMS zonse ndi zinthu zamagalimoto, kotero momwe mawindo awindo angakwaniritsire zofunikira za kudalirika kwabwino, kutumizirana kwakukulu kwa bandi yowunikira kuwala, ndi maonekedwe akuda akhala vuto.
01. Chidule cha zothetsera zenera zomwe zili pamsika
Pali mitundu itatu:
Mtundu 1: Gawoli limapangidwa ndi zinthu zolowera mkati mwa infrared
Mtundu uwu wa zinthu ndi wakuda chifukwa umatha kuyamwa kuwala kowonekera ndikutumiza ma bandi apafupi ndi infrared, ndi ma transmittance pafupifupi 90% (monga 905nm mu bandi yapafupi ndi infrared) komanso chiwonetsero chonse cha 10%.
Mtundu uwu wa zinthu angagwiritse ntchito infuraredi kwambiri mandala utomoni magawo, monga Bayer Makrolon PC 2405, koma utomoni gawo lapansi ali osauka chomangira mphamvu ndi kuwala filimu, sangakhoze kupirira nkhanza kuyezetsa zachilengedwe kuyezetsa, ndipo sangathe yokutidwa ndi odalirika kwambiri ITO mandala Conductive filimu (ntchito magetsi ndi defogging), choncho nthawi zambiri amagwiritsidwa ntchito mu mazenera amtundu wa substrate ndi substrate. safuna Kutenthetsa.
Mukhozanso kusankha SCHOTT RG850 kapena Chinese HWB850 galasi wakuda, koma mtengo wa mtundu wa galasi wakuda ndi mkulu. Kutengera galasi la HWB850 mwachitsanzo, mtengo wake ndi woposa nthawi 8 kuposa magalasi owoneka bwino amtundu womwewo, ndipo zambiri zamtunduwu sizingadutse muyezo wa ROHS motero sizingagwiritsidwe ntchito pamawindo opangira ma lidar opangidwa ndi misa.
Type 2: kugwiritsa ntchito inki yotulutsa infrared
Inki yolowera yamtunduwu imatenga kuwala kowoneka bwino ndipo imatha kutumizira ma bandi apafupi ndi infrared, ndi ma transmittance pafupifupi 80% mpaka 90%, ndipo mulingo wonse wa transmittance ndi wotsika. Kuphatikiza apo, inkiyo ikaphatikizidwa ndi gawo lapansi la kuwala, kukana kwanyengo sikungadutse zofunikira zolimbana ndi nyengo yamagalimoto (monga kuyezetsa kutentha kwambiri), kotero inki yolowera infrared imagwiritsidwa ntchito kwambiri pazinthu zina zokhala ndi zofunikira zochepa zokana nyengo monga mafoni anzeru ndi makamera a infrared.
Type 3: kugwiritsa ntchito fyuluta yakuda yokutira yakuda
Zosefera zakuda ndi zosefera zomwe zimatha kutsekereza kuwala kowoneka bwino ndipo zimakhala ndi ma transmittance apamwamba pa band ya NIR (monga 905nm).
Zosefera zakuda zokutira zidapangidwa ndi silicon hydride, silicon oxide ndi zida zina zoonda zamakanema, ndipo zimakonzedwa pogwiritsa ntchito ukadaulo wa magnetron sputtering. Imadziwika ndi ntchito yokhazikika komanso yodalirika ndipo imatha kupangidwa mochuluka. Pakali pano, mafilimu wamba wakuda optical fyuluta nthawi zambiri amatenga mawonekedwe ofanana ndi filimu yopumira. Pansi pa ochiritsira pakachitsulo hydride magnetron sputtering filimu kupanga ndondomeko, kuganizira mwachizolowezi ndi kuchepetsa mayamwidwe pakachitsulo hydride, makamaka mayamwidwe wa pafupi infuraredi band, kuonetsetsa transmittance ndi mkulu mu 905nm gulu kapena magulu lidar ena monga 1550nm.
Nthawi yotumiza: Nov-22-2024
