1. ?????????? ???????
?????????? ???????, ?????? ?????????? ????? ??????? ?????? ????? ????? ????, ?????? ????? ?????? ????? ????. ???????? ????? (0 ??, ???????, - 273.15 ℃) ???? ?????? ???? ?????? ???? ???? ??? ?????, ?????? ????????? ???????? ????????????? ??? ???? ??? ?????? ??????? ?????? ????.
?????????? ???? ?????????? ?????????? ????????? ???????? ?????????????? ????? ????? ???, 0.8μm ?? 50μm ?????????? ????????????, ?? ???????? ???????????????? ???? ??? (0.4μm ?? 0.8μm).
?? ????????? ??? ????????? ?????????? ????? ??? ????
λ = ??/??, ???? ?? ?? ?????? 3.0 × 108 ??/?? ??? λ ?? ??? ??? ??? λ ?? ????????? ???.
??????????: ???????? ????????? ????????? ?????? 4x1014Hz ~ 8x1014Hz ??????? ???.
2. ?????????? ??????? - ????????? ?????
???????? ??????? ??????? ????? ???? ?????? ?????????? ??????? ????? ????? ??? ???? ???? ???????????? ?????? ???????????? ??????.
????????, ???? ?????????? ?????? "?????????? ??????? ????????? ?????" ???????.
????? - ?????, ????? - ????? ??? ???? - ????? ?????????? ????????, ????? ????????? ??????? ???????? 0.7 ~ 2.5μm, 3 ~ 5μm ??? 8 ~ 14μm ????;
??? -???? - ????? ?????????? ?????????? ??? ??? 8 ~ 14μm ???.
3. ?????????? ????? ????? ????:
①. ?????????? ?????: ???????????? ????? ??????? ?????????????? ????????? ?????? ?????????? ???? ??????? ?????????? ??? ???? ???????? ?????????? ?????? ????.
②. ?????????? ???????? ????????: ???????????? ?????????? ??????????? ??????? ???????? ?????????? ??????? ???????? ?????????? ??????????? ??????????? ??????????? ????????? ?????????? ?????? ????.
③. ???????????? ???: ???????????? ??????????? ???????? ????????? ?????????? ?????? ?????.
④. ???????? ???: ???????????? ???????? ?????? ??????? ?????? ??????????? ?????? ????????? ?????????? ?????? ????.
⑤. ?????????? ????????????? ?????? ???? ???? ?????????? ??????? ?????? ????????? ?????????? ???????????? ?????? ????.
4. ?????????? ??? (??????)
???? - ?????????? (??????) ??? (?.8μ ?? ~ ?μ ??) ????? ?????????? ???????????? ?????????? ?????? ???????? ?????? ??????? ???? ??? ??? ?????? ??????? ???????? ?????? ????????????? ???????? ??????? ????? ?????? ????????;?
???????? ?????? ?????, ?????? ?????? ????? ??????????? ????, ?????? ????? ?????? ?????????? ???? ???????? ??????? ??????? ??????????? ?????;
?????????:?
?????, ??????? ?????? ????? ??????? - ?????????? ????? ????? ??? ?????, ?????????? ??? ????, ???? ??? ??????, ??? ?????????? ???????????? ????? ?????? ??? ????, ??????? ??????? ?????? ??? ?????????? ?????? ???????????? ?????? ????;?
??? - ????????? ??????? ??????? ?????????? ????? ??? ???, ????????????? ??????????? ??? ??? ??? ??????????? ??????;
4. ????? ????? ?????????? (?????????????)?
????? ????? ?????????? (?????????????) ???????? ????????????? ??? ??? ?????? ??? ??? ??????? ???? ??? ????????? ???????? ??????? ???? ?????????? ???????????????? ??????????? ??? ????? ??? ????;?
???????? ?????, ???? ??? ??????? ??????? ??????? ??????? ????????????? ???????????? ?????? ?????? ????;?
?????????????????? ????? ??? ?????????????? ?????? ???????? ?????? ????? ???;?
500 ?? 3000 ?????? ???????? ???????? ?????????????? ?????? ?????? ??? ??????? ???? ?????. ?????? ?????? 500 ~ 3000 between ??????? ???;?
?????????:?
???, ???? ??? ?????????? ???? ??????????? ?????????????? ?????? ??? ????;?
??????, ???????? ??? ???????? ???????? ?????? ?????????? ???? ?????????? ????????? ?????? ??? ????;?
??????? ??????????? ??????? ??? ??? ??????? ????????;?
?????? ????????? ?????? ??? ????.
5. ??? ????? ?????????? (?????????????)?
?????:?
High sensitivity and resolution: Cooled detector with low noise, thermal sensitivity (NETD) <20mK, and excellent detail resolution;?
Strong atmospheric penetration: MWIR has high transmittance in specific atmospheric windows (e.g., 3-5 μm), and is suitable for long-distance observation because it is less affected by interference from fog, smoke and soot.
???? - ?????? ?????? ?????????: ????????????????? ??????, ??? - ??????? ???????????????? ?????????????? ??? ?????? ????, ???????? ????????? ???? ??????? ???? ????? ???? ??? “????? ????? ??? ??????” ?? ?????? ??? ????.
???? ???????? ??????: ???? ??? ??? ?????? ?????? ?????? ?????? ?????????? ?????.
?????? ???????? ???: ??? ???????? ?????? ????? ????????, 100 ?????? ???? ????? ??? ??? ????.
????:?
???? ??????????? ??? ??????????: ????? ?????????? ????????? ????, ???? ????, ???? ?????? ????, ????? ???? 5 - ????????? ????? ??????? ??????????????? 10 ?? ????.
?????? ??????? ??? ????? ????: ??????????? ???????? ?????? ???? ??????, ???? ????????????????? ???? ??? ???? - ??????? ?????????? ?????? ??? ?????? ??? - ?? (????????: ???? ??????), ???????? ?? ??? ?????????? ?????? ????.
?????????? ???????: ?????? ???????? ??? ?????? ?????? ????????? ????? ????? ??? ??? -???????????????? ??? ??????????? ??? ?????.
???????????? ??????: ???????? ???????? (???. ????????? ?????????? ?????? 10,000 ???) ???? ??? ?????? ?????? ????? ?????????????? ???????? ????, ???????? ??????? ????? ?????.
?????????:?
???? ??????, ??? ?????, ?????????? ??? ??????? ???????????? ???????????;?
???????????? ??????????, ???????? ?????????? ??? ??? ???????? (????????).
6. ???? ????? ?????????? (?????????????)?
?????:?
????????????? ???????? ????, ??? ????????: ??????????? ????????, ???? ?????? ????, ???? ????, ???? ???, ???????? ????? ??? ????.
??????????? ?????? ?????? ???????????: ???????? ????????? ??????? ?????? (- 40 ?????? ???????? ~+85 ?????? ????????), ???? ???? - ?????? ???, ????????? ?????? ????????? ????, ???? - ?????????, ????? ????? ???? ???????????? ?????.
??? ????? ???? ??? ????? ??????: ????? ???? 1 ??????? ????? ?????????? ??? (???. ??? ??? ??????????? ????? ??????? ??????), ???????? ???? 100,000 ???????????, ???? ??? ?????? ????.
???? - ?????? ??????: ???? ??? ?????????? ???????? ???????? ??? ????, ??? ??? ??? (????? ??????????????????? ??????) ????? ?????? ???????? ????? ??????, ???????? ???????? ????? ??? ??? ????????? ?????.
????:?
Low sensitivity: usually 30~50mK, lower than cooling type (<20mK), weak detail resolution, easy to overexpose high-temperature targets (need dynamic range adjustment).
Slow response speed: frame rate is usually ≤60Hz, not suitable for ultra-high-speed dynamic scenes (such as ballistic tracking).
?????????????? ?????? ?????????: ????? ??????????? ????????? ????????? (??? ?? ????, ?????? ?????????), ???? ????? ???? ???????? ??????????? ????????? ??????.
???? ????????? ?????????? ???????: ????????? ???? (???????? ?????, ?? -???? ???) ???? ??????? (> 1 ????) ???? - ????? ????????????? ???? ???? ????? ??? ??????????? ?????? ????? - ????? ????????????? ?????? ???.
?????????:?
??????????: ???????? ????? ??????, ??????? ?????? ??????, ?????????? ????? ??????? ???? - ??, ???????? ?????? ??????, ???? ??????? ??????, ????? ???? ??????, ????????? ??? ??? ????.
?????: ?????? - ???????? ???? ?????? ????????, ??? - ????? ?????? ??????.