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公开(公告)号:US5220173A
公开(公告)日:1993-06-15
申请号:US778963
申请日:1991-11-21
Applicant: Svein O. Kanstad
Inventor: Svein O. Kanstad
CPC classification number: G01J3/108 , B41J2/32 , G01N21/3504 , G01N2201/06186
Abstract: Pulsating infrared radiation source 50, which is so thin as to make its thermally stored energy less than the energy radiated during each pulse. This makes the source cooled by its own heat emission. Such sources have thicknesses commensurate with the wavelengths of infrared radiation. To avoid interference effects, the source's optical thickness may be made to equal a multiple of half wavelengths of the desired radiation. With the source mounted in a housing 53, efficient radiative cooling is obtained using windows 54 and 55 to each side. This makes it possible to extract infrared radiation from either face of the source.
Abstract translation: PCT No.PCT / NO90 / 00086 Sec。 371日期1991年11月21日 102(e)1991年11月21日PCT PCT 1990年5月22日PCT公布。 WO90 / 14580 PCT公开 日期1990年11月29日。脉冲红外辐射源50,其薄到使得其储热能量小于每个脉冲期间辐射的能量。 这使得源通过其自身的热量被冷却。 这些源具有与红外辐射波长相当的厚度。 为了避免干扰效应,源的光学厚度可以被制成等于期望辐射的半波长的倍数。 当源安装在壳体53中时,使用每侧的窗口54和55获得有效的辐射冷却。 这使得可以从源的任一面提取红外辐射。
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公开(公告)号:US4620104A
公开(公告)日:1986-10-28
申请号:US545388
申请日:1983-09-28
Applicant: Per-Erik Nordal , Svein O. Kanstad
Inventor: Per-Erik Nordal , Svein O. Kanstad
CPC classification number: G01J3/108 , H05B3/26 , H05B2203/011 , H05B2203/013 , H05B2203/032
Abstract: Infrared radiation source arrangement, in particular for use in infrared spectral analysis. To an electrically insulating substrate (2) there is applied one and preferably at least two separate electrically conductive films (2a, 2b) adapted to be heated by application of a time dependent electric current thereto. Tow or more films may form a radiation group (array) in which each film (2a, 2b) is adapted to be energized separately with electric current from an electric drive circuit (1) for applying a time dependent, preferably pulse shaped electric current to the film or films, so that infrared radiation pulses are emitted. The electric current is time controlled in order that the radiation pulses from the respective films may be distinguished from each other in a detector (6). The thickness of the substrate and the thermal conductivity, specific heat and density of the substrate material are so chosen that the thermal time constant is adapted to the pulse frequency range of the drive circuit.
Abstract translation: PCT No.PCT / NO83 / 00006 Sec。 371日期1983年9月28日第 102(e)1983年9月28日PCT提交1983年2月16日PCT公布。 第WO83 / 03001号公报 日期:1983年9月1日。红外辐射源安排,特别用于红外光谱分析。 对于电绝缘基板(2),应用一个并且优选至少两个独立的导电膜(2a,2b),其适于通过对其施加时间依赖性电流而被加热。 拖拉或更多的膜可以形成辐射群(阵列),其中每个膜(2a,2b)适于用来自电驱动电路(1)的电流分开地通电,用于将时间依赖的,优选地脉冲形的电流施加到 膜或膜,以便发射红外辐射脉冲。 时间控制电流,以便可以在检测器(6)中将来自各个膜的辐射脉冲彼此区分开来。 衬底的厚度以及衬底材料的热导率,比热和密度被选择为使热时间常数适应于驱动电路的脉冲频率范围。
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