公开(公告)号：US5747820A

公开(公告)日：1998-05-05

申请号：US499177

申请日：1995-07-07

Applicant: Kai Karlsson ,  Timo Merilainen ,  Kurt Weckstrom ,  Seppo Poikolainen

Inventor： Kai Karlsson ,  Timo Merilainen ,  Kurt Weckstrom ,  Seppo Poikolainen

IPC: G01J3/10

CPC classification number: G01J3/108

Abstract: The invention relates to an infrared radiation source for a gas analyzer and a method for generating infrared radiation. The infrared radiation source comprises a body (6), thermal insulation material (5) adapted inside the body (6), a radiant element (1) fitted inside the insulation material (5), elements (2, 3) for feeding electric energy to said radiant element (1), and a channel (7) formed in said body (6) and said thermal insulation material (5) in order to pass the radiation generated by said radiant element (1) to the gas under measurement. According to the invention, at least the thermal insulation material (5) adapted in close proximity to the radiant element (1) has a low thermal conductivity and the emissivity of the radiant surface (11) adapted in close proximity to the radiant element (1) is greater than 0.5 at the operating temperature of the source.

Abstract translation: 本发明涉及一种用于气体分析仪的红外辐射源和一种产生红外辐射的方法。 所述红外辐射源包括主体（6），适于所述主体（6）内部的绝热材料（5），安装在所述绝缘材料（5）内的辐射元件（1），用于馈送电能的元件（2,3） 到所述辐射元件（1）和形成在所述主体（6）和所述绝热材料（5）中的通道（7），以便将由所述辐射元件（1）产生的辐射传递到被测气体。 根据本发明，至少适于靠近辐射元件（1）的绝热材料（5）具有低热导率，辐射表面（11）的辐射率适合于辐射元件（1）附近 ）在源的工作温度下大于0.5。