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    • 6. 发明专利
    • Infrared gas analyzer
    • 红外气体分析仪
    • JP2004053432A
    • 2004-02-19
    • JP2002211919
    • 2002-07-22
    • Horiba Ltd株式会社堀場製作所
    • SATAKE TSUKASATAKADA HIDEJI
    • G01N21/35G01N21/3504G01N21/359G01N21/61
    • PROBLEM TO BE SOLVED: To provide an infrared gas analyzer that has a detection section with a simple configuration and sensitively detects a single component gas. SOLUTION: In the infrared gas analyzer, a light source 2 is provided at one end of a cell 1 where a sample gas SG is supplied; a thermal infrared sensor 8 for measurement and a thermal infrared sensor 9 for comparison are provided at the other end in parallel; and light with a specific wavelength enters each infrared sensor via a filter 5. The filter is integrated for the thermal infrared sensor for measurement and that for comparison and the section shape of the filter is a quadrangle . In an optical axis 10 in a parallelogram, two vertical surfaces 5a, 5d are coated with a reflection protecting film. Then, the surface 5b in surfaces 5b, 5c that are adjacent to the surfaces 5a, 5d and are slanted to the optical axis by a specific angle cuts on light having the shortest wavelength in a plurality of absorption peaks in the component to be measured, allows the light to enter the thermal infrared sensor for measurement. The other surface 5c enables light being reflected on the surface 5b to enter the thermal infrared sensor for comparison. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供具有简单结构的检测部分并且敏感地检测单一组分气体的红外线气体分析仪。 解决方案:在红外线气体分析仪中,在供给样品气体SG的电池1的一端设置有光源2, 平行地设置用于测量的热红外传感器8和用于比较的热红外传感器9, 并且具有特定波长的光通过滤光器5进入每个红外传感器。滤光器被集成用于热红外传感器用于测量,并且用于比较,并且滤光器的截面形状是四边形。 在平行四边形的光轴10中,两个垂直表面5a,5d涂覆有反射保护膜。 然后,表面5b,5c的与表面5a,5d相邻并且以特定角度向光轴倾斜一定角度的表面5b切割在待测量部件中的多个吸收峰中具有最短波长的光, 允许光进入热红外传感器进行测量。 另一个表面5c使得能够在表面5b上反射的光进入热红外传感器进行比较。 版权所有(C)2004,JPO