91九色视频在线观看视频,一区二区美女又爽又粉嫩,蜜臀一区二区三区日韩,五月婷婷激情人妻在线,久久精品视频免费播放国产,亚洲欧美偷拍自拍另类,久久a v中文字幕,中文字幕在线乱码人妻app,日本一区二区三区精彩视频

The direct reading spectrometer is essentially an atomic emission spectrometer. The reason why it is called direct reading is that compared to spectrographs and early emission spectrometers, before the 1970s, computers did not use it. All the photoelectric converted current signals were read using digital tubes, and then curves were drawn on logarithmic conversion paper to calculate the content value. After the application of computer technology in spectrometers, all data processing was completed by computers, which can directly convert the content. Therefore, a more vivid term is called direct reading, abbreviated as direct reading.

The analysis technology of the carbon silicon analyzer in front of the furnace is based on the solidification temperature curve of the formation process of cast iron structure. The instrument analyzes the solidification temperature curve and obtains the characteristic points of the curve under different compositions. Based on the characteristic points of the curve, the carbon equivalent CE%, carbon content C%, silicon content Si%, spheroidization rate SG%, tensile strength RM, eutectic degree SC, hardness HB and other properties of molten iron are calculated.

The sixth generation SPECTROMAXx direct reading spectrometer adopts a new regression calculation mode for the working detection line of elements, and the new application report data reflects the trend of industrial development.

Direct reading spectroscopic analyzer uses electric spark excitation to generate discharge, and then uses a detector to perform computer analysis on the generated spectrum to obtain the content of various elements in the metal sample. Compared with previous years, direct reading spectroscopic analyzer has made rapid development in both cognition and application. What we are talking about here is the development of portable direct reading spectrometers.