Kuki Amazu ya LiDAR Amazu ashyuha? Ese PVDF ated Aluminiyumu yubatswe neza?

Imodoka yigenga, sisitemu yo gufasha abashoferi bo murwego rwa 3 (ADAS), hamwe na tagisi ya robo-bishingikiriza cyane kumasenge yubatswe na bamperi ihuriweho na LiDAR (Light Detection and Ranging) . Gukora ubudahwema kumuvuduko mwinshi, moteri ya optique ya LiDAR (diode ya laser, APDs, hamwe na emitter yohereje) itanga imitwaro myinshi yumuriro mugihe ufata imirasire yizuba idahwema nubushyuhe bwibidukikije.

Ubushyuhe bwa Thermal, laser optique power degradation, hamwe na transceiver drift nuburyo bwo kunanirwa muburyo bwimodoka LiDAR. PVDF ​ PVDF​ ​

Impamvu zitera LiDAR Ubushyuhe bukabije

Ibinyabiziga bya LiDAR bikorera imbere byuzuye, bifunze inzu ya IP67 / IP69K yashyizwe hejuru yinzu yimodoka cyangwa grilles imbere:

Imitego yubushyuhe bwimbere (ASIC / Laser Power): Imiyoboro myinshi 905nm cyangwa 1550nm ya laser array itanga ubushyuhe bwibanze (20 W - 50 W). Ubushyuhe bwo hejuru butera lazeri diode yumurambararo ugenda, bigabanya intera igaragara hamwe nukuri-igicu.

Imirasire y'izuba yo hanze: Inzu ya plastiki yijimye cyangwa inzu isanzwe ipfa gukuramo ingufu z'ubushyuhe bukabije bw'izuba (1000 W / m² imirasire y'izuba), bigatuma ubushyuhe bw'imbere mu nzu burenga imipaka (> 85 ° C).

Kugereranya: Amazu asanzwe apfa-na PVDF Amazu yubatswe ya Aluminium

Ibikoresho by'amazu ya LiDAR

Matrix iri hepfo igereranya ibikoresho byimiturire yimodoka gakondo PVDF impapuro za aluminiyumu zometseho LiDAR ikwirakwiza ubushyuhe:

Ibyingenzi Byumwuga Mubyimodoka LiDAR Ubushyuhe bwo Gukwirakwiza

Ibibazo

Q1: Kuki aluminiyumu yambaye ubusa idahagije kugirango imodoka LiDAR igabanuke? 

Igisubizo: Bare aluminiyumu ifite ubushyuhe buke cyane ( ε ≈ 0.10 - 0,20 ), bivuze ko idashobora gukwirakwiza ubushyuhe mubidukikije. Byongeye kandi, aluminiyumu yambaye ubusa ikurura ubushyuhe bwizuba kandi ikababazwa na okiside yo mu kirere mugihe runaka.

Q2: Nigute PVDF ating gutwika ubushyuhe bwa LiDAR munsi yizuba ryinshi?

: PVDFIgisubizo ​ ​​​ ​​

Q3: Kashe cyangwa gushushanya byimbitse bizasenya PVDF gutwikira kumpapuro za aluminium?

: PVDF.  Inganda Oya  Igisubizo

Q4: Nigute PVDF yometse kuri aluminiyumu igereranya na aluminiyumu ya anodize kuri LiDAR?

Igisubizo: Mugihe anodizing yongerera imbaraga hejuru yubutaka, hejuru ya anodize yambaye ubusa itanga ubushyuhe buke bwizuba kandi birashobora kurwara UV igabanuka cyangwa imiti ivuye mumashanyarazi ya alkaline. PVDF ats ibifuniko bitanga ubudahangarwa bwimiti, kurwanya UV, hamwe nizuba rya NIR.

Q5: Urashobora PVDF amazu yubatswe ya aluminiyumu ashobora gukoreshwa muri sisitemu ya LiDAR ikonje?

Igisubizo: Yego. Ububiko bwa aluminiyumu butanga ubushyuhe bwinshi (160−200 W / m⋅K) kugirango buhure neza na plaque ikonje imbere, mugihe urwego PVDF urwego rwinshi rushobora gukonjesha mu kirere.

Umwanzuro

PVDF impapuro zometse kuri aluminiyumu zitanga ubushyuhe bukomeye bwo gutunganya amazu ya LiDAR yimodoka, ikomatanya imirasire yizuba ryinshi, gukonjesha imishwarara yumuriro, hamwe nubushyuhe bwigihe kirekire bwimodoka.

Kugirango uhindure ibikoresho byatoranijwe kubinyabiziga bya LiDAR:

Kugaragaza cyane-Emissivitike PVDF Aluminiyumu yubatswe ( ε > 0.90): Manda 3003-H14 cyangwa 5052-H32 impapuro za aluminiyumu zometseho izuba ryerekana izuba PVDF amakoti yo hejuru (25μm - 35μm).

Kugenzura Imirasire y'izuba (aₛ <0.25): Menya neza ko abatanga ibicuruzwa batanga raporo zerekana ibintu byerekana ko NIR igaragara hejuru ya 700 nm - 2500 nm.

Kugenzura Ikimenyetso cya Bend Radius (1T - 2T): Shimangira ibipimo bifatika bifatika ( ASTM D3359 cross-hatch 5B) kugirango habeho gukuraho zeru mugihe cyo gutangiza kashe yimiturire.