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一、绪言在钢铁产品制造工业中使用的原材料和判断产品钢种等方面,开展不取样,在现场直接进行无损、快速分析是很需要的。但目前钢铁产品的钢种成分含量范围窄、品种多,即使判断钢种也需要准确分析。从无损、快速的条件考虑,以发射光谱分析法为宜。用发射光谱法时,因为不取样,需要使激发和分光检测部份独立设置,将火花放电辐射光向分光部份传输。为了传输辐射光,考虑使用具有可挠性的光纤比通常用透镜系统改变光轴更为有利。将光纤作为传输火花辐射光的手段应用于发射光谱分析的报导,目前已有几篇文章,但关于适合传输火花辐射光的光纤材料及结构进行基础研究的报告不多,而且,尚未见到钢铁试样用光纤传输火花辐射光时各元素定量精度的报导。另一方面,光纤的研究开发以光通信为
I. INTRODUCTION It is necessary to conduct non-destructive and rapid analysis directly on site without regard to the raw materials used in the steel products manufacturing industry and the steel grades for judgment products. However, at present, the content of steel components of steel products is narrow in scope and variety, and even the steel grades are judged to need accurate analysis. From non-destructive, fast conditions to the emission spectrometry is appropriate. Emission spectrometry method, because it does not sample, you need to make the excitation and spectral detection part of the independent set, the spark discharge radiation to the spectral part of the transmission. In order to transmit radiant light, it is more advantageous to consider using a flexible optical fiber than to change the optical axis generally with a lens system. There are currently several articles on the application of optical fiber as a means of transmitting sparking radiation to emission spectroscopy. However, there are only a few reports on the basic research on optical fiber materials and structures suitable for transmitting spark-emitting light, and no steel Specimens with optical fiber transmission of spark radiation when the quantitative accuracy of the elements reported. On the other hand, the optical fiber research and development to optical communications