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    • 3. 发明授权
    • Infrared radiation source, especially for a multi-channel gas analyzer
    • 红外辐射源,特别适用于多通道气体分析仪
    • US4922108A
    • 1990-05-01
    • US189654
    • 1988-05-03
    • Ulrich ModlinskiGerhard Wiegleb
    • Ulrich ModlinskiGerhard Wiegleb
    • G01J3/10H01K1/52
    • H01K1/52G01J3/108
    • In an infrared radiation source, especially for a multi-channel gas analyzer, a radiant body (3) is provided with a reflector (4) disposed behind it, and a window (5) of calcium-fluorite at least partially covering the radiant body (3) is provided, the radiant body (3) being partially surrounded at its rear by a cup-like case (6) whose circumferential margin is hermetically joined to the window (5) by an intermediate ring (19). The interior (7) of the radiant source can be pumped empty of air through a passage (8) in a tube connection (9) formed by the case (6) or provided with an oxidizing atmosphere, thereby achieving a high insensitivity to the position of the infrared radiation source.
    • 在红外线辐射源中,特别是对于多通道气体分析仪,辐射体(3)设置有设置在其后面的反射器(4)和至少部分覆盖辐射体的萤石窗(5) (3),所述辐射体(3)在其后部被杯状壳体(6)部分地包围,所述杯状壳体(6)的圆周边缘通过中间环(19)与所述窗口(5)气密接合。 辐射源的内部(7)可以被空气泵送通过由壳体(6)形成的管连接(9)中的通道(8)或具有氧化气氛,从而实现对位置的高不敏感性 的红外辐射源。