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根据滤光片通带的半宽度与其中心波长的比值,分为窄带滤光片、中带滤光片、宽带滤光片。红外窄带滤光片主要用于各种气体及火焰等探测。

产片型号及性能参数

(1)窄带滤光片——火焰探测

Name

Description

Transmission Range

Tp (%)

NBP 4.3 μm / 600 nm

Silicon NBP

Band pass

≥70/≥75/≥80

NBP 3.8 μm / 200 nm

Silicon NBP

Band pass

≥70/≥75/≥80

NBP 3.9 μm / 200 nm

Silicon NBP

Band pass

≥70/≥75/≥80

NBP 4.48 μm / 620 nm

Silicon NBP

Band pass

≥70/≥75/≥80

NBP 4.8 μm / 200 nm

Silicon NBP

Band pass

≥70/≥75/≥80

NBP 5.2 μm / 200 nm

Silicon NBP

Band pass

≥70/≥75/≥80



(2)窄带滤光片——各种气体探测



Name [CWL/HPBW]

Gas

Tolerance of CWL [nm]

Tolerance of HPBW [nm]

Tp (%)

NBP 3.90 μm / 90 nm Reference

-

±30

±20

≥70/≥75/≥80

NBP 3.95 μm / 90 nm narrow

-

±30

±20

≥70/≥75/≥80

NBP 3.33 μm / 160 nm Methane

CH4

±20

±20

≥70/≥75/≥80

NBP 3.40 μm / 120 nm HC

HC

±30

±20

≥70/≥75/≥80

NBP 4.30 μm / 600 nm Flame

flame

±30

±30

≥70/≥75/≥80

NBP 4.26 μm / 90 nm CO2 narrow

CO2

±20

±20

≥70/≥75/≥80

NBP 4.26 μm / 180 nm CO2 standard

CO2

±20

±20

≥70/≥75/≥80

NBP 4.27 μm / 170 nm CO2 high AOI

CO2

±30

±20

≥70/≥75/≥80

NBP 4.45 μm / 60 nm CO2 long path

CO2

±20

±20

≥70/≥75/≥80

NBP 4.66 μm / 180 nm CO centered

CO

±40

±20

≥70/≥75/≥80

NBP 4.74 μm / 140 nm CO flank

CO

±20

±20

≥70/≥75/≥80

NBP 5.30 μm / 180 nm NOX

NOX

±40

±20

≥70/≥75/≥80

NBP 7.30 μm / 200 nm SO2

SO2

±40

±30

≥70/≥75/≥80