X ray fluorescence The phenomenon in which a substance is irradiated by primary X-rays or other photon sources and excited to produce secondary X-rays. It contains only characteristic X-rays and no continuous X-rays. Primary, secondary, and primary X-rays are excited to produce primary, secondary, and tertiary X-ray fluorescence, respectively. Direct Reading SpectrometerDirect Reading Spectrometer, suitable for outdoor name kind of applications, no matter whether it is used for internal analysis of pressure vessels, in-situ analysis of pipelines or workshop analysis, there is no problem. Because it is hermetically sealed in a temperature stabilized thermostatic enclosure, the general transportation and operation of the equipment can be done by just one person. The spectrometer is designed to achieve the highest analytical accuracy, the new dual spectral chamber enables the application of optimal spectral lines, and the 36 measurement channels enable the instrument to analyze a wide range of matrices such as Fe, Ni, Cu, A1, Ti, etc. The spectrometer is equipped with an ultra-high sensitivity, which allows it to be used in a wide range of analytical applications. The spectrometer is equipped with an ultra-high sensitivity photomultiplier tube, which gives the detector a dynamic range over the full scale range to identify the smallest differences in composition. The second narrow slit of the curved surface clearly separates adjacent spectral lines, which is particularly useful for high-precision analysis, including analysis of alloy components with high content. Variety classification Direct reading spectrometer varieties are divided into spark direct reading spectrometer, photoelectric direct reading spectrometer, atomic emission spectrometer, atomic absorption spectrometer, handheld spectrometer, portable spectrometer, energy dispersive spectrometer, vacuum direct reading spectrometer, direct reading spectrometer is divided into desktop and vertical machine. Direct reading spectrometer is widely used in foundry, steel, metal recycling and smelting, as well as military, aerospace, electric power, chemical industry, colleges and universities and commodity inspection, quality inspection and other units. According to the working principle of modern spectrometer, spectrometer can be divided into two categories: classical spectrometer and new spectrometer. Classical spectrometers are based on the principle of spatial dispersion; new spectrometers are based on the principle of modulation. Classical spectrometers are slit spectrometers. Modulation spectrometers are non-spatially dispersive and use a circular aperture to feed the light. Depending on the principle of dispersive component spectroscopy, spectral instruments can be divided into: prism spectrometers, diffraction grating spectrometers and interference spectrometers. Optical Multi-channel Analyzer OMA (Optical Multi-channel Analyzer) is a new type of spectral analyzer using photon detectors (CCD) and computer control in the last decade, which integrates information acquisition, processing, storage functions in one. As OMA no longer use photographic latex, to avoid and save the darkroom processing and a series of cumbersome processing, measurement work, so that the traditional spectroscopic technology has undergone a fundamental change, greatly improving the working conditions, improve the efficiency of the work; the use of OMA analysis of spectra, measuring pots of accurate and rapid, convenient, and high sensitivity, fast response time, high spectral resolution, and the results of the measurements can be immediately read from the display screen or by a printer, plotter, or by a printer, plotter, or by a computer. The results can be read out immediately from the display or output by printer or plotter. At present, it has been widely used in almost all the spectral measurement, analysis and research work, especially adapted to the detection of weak signals, transient signals. Selection of Dispersive Modules and Determination of Optical Parameters for Spectrometers Selection of Dispersive Modules for Spectrum Analyzers The selection of dispersive modules is a key issue in the design of imaging spectrometers, and the advantages and disadvantages of prisms and light-shed dispersive modules should be weighed comprehensively [140-al] The direct-reading spectral analyzer is a "Chinese" spectral analyzer, which is simpler and more straightforward to operate. The direct reading spectrometer is a "Chinese" version of the spectrum analyzer, which is easier to operate. [edit this paragraph] direct reading spectrometer's formal name is called atomic emission spectrometer The reason why he called direct reading is relative to the regent spectrometer and the early emission spectrometer, due to the 70's before the adoption of computers, all the photoelectric conversion of current signals out of the digital tube readings, and then in the logarithmic conversion of the paper plotted on the curve and the content of the value of the computer technology in the spectrometer after the application of all data processing is done by the computer can be completed, and can be used in the spectrometer. After the application of computer technology in the spectrometer, all the data processing is completed by the computer, can be directly converted to content, so the more image of the pipe it is called directly can read out the results, the abbreviation is called direct reading, there is no such concept in foreign countries. Direct reading spectrometer and ICP are emission spectroscopy analytical instruments, the difference is that their excitation method is different, ICP Chinese name is inductively coupled plasma, is through the coil magnetic field to reach a high temperature so that the sample state is plasma and then measurements, and ordinary direct reading spectrometer is generally used in the form of electric sparks, arcs, or glow discharge the sample into a vapor for the excitation of the effect of ICP In effect, ICP has smaller detection limit and higher accuracy than ordinary direct reading spectrometer, but the requirements on the feeding system are very strict, no good feeding system can only do solution samples. Foreign advanced ICP can do solid samples. Hope you can help, hope to adopt, thank you~!