四十年代初,随着冶金工业的快速冶炼方法的出现,采用了由电子管组装的第一台光电直读发射光谱仪进行快速分析。三十多年来,由于电子和计算技术的飞速发展,使光电直读发射光谱仪经历了电子管电路—晶体管电路—集成电路的发展,目前已有多种电子计算机—多光谱光电直读发射光谱仪成套商品出 In the early 1940s, with the advent of a rapid smelting process in the metallurgical industry, the first electro-optical direct-reading emission spectrometer assembled from a tube was used for rapid analysis. For more than thirty years, due to the rapid development of electronics and computing technology, the direct reading Emission Spectrometer (ETA) has undergone the development of a tube circuit, a transistor circuit, and an integrated circuit. At present, there are a variety of electronic computer-based multi-spectral optical direct reading emission spectrometers Out of the commodity