This kind of cell phone jammers can be used as a commanding pen

 This kind of cell phone jammers can be used as a commanding pen.
But with different content analysis of elements. Commonly used in the analysis, the so-called "internal standardization" process, that is to compare the intensity of spectral lines of the element being analyzed and the spectral intensity of the substrate material, so that you can reduce the laser pulse - the pulse energy inconsistencies caused by the plasma changes in body condition on the measurement results. To get a good analysis results should LIBS hardware careful design and use of appropriate measurement methods. LIBS system measurement sensitivity is related to many factors: the binding mode analysis and matrix materials, the distance of the LIBS system and the tested samples and the need for telemetry. LIBS system accuracy of measurement results can be better than 10%, and accuracy better than 5%.
Also has a slotted thin, heat-affected zone is small, the quality of the cutting surface, cutting noise, the cutting process is easy to realize the advantages of automation control. Laser cutting sheet metal, no mold, you can replace some of the large and complex mold cutting process, can greatly shorten the production cycle and reduce costs. Therefore, laser cutting has been widely used in automotive, rolling stock manufacturing, aviation, chemical industry, light industry, electrical and electronics, oil and metallurgical and other industrial sectors. Figure 1 Laser Cutting Figure 2 The principle of laser cutting. The principle of laser cutting in the energy under the action of the laser beam .
Laser melt cutting laser melt cutting, the metal material melted by laser heating, and then through a beam coaxial nozzle injection of non-oxidizing gases (Ar, He, N, etc.) rely on the strong pressure of the gases in the liquid metal discharge, the formation of incision. Laser melt cutting does not require the metal completely vaporized, the energy required for vaporization cutting 1/10 only. Laser melt cutting is mainly used for the easy oxidation of the material or activity of metal cutting, such as stainless steel, titanium, aluminum and its alloys. Laser oxygen cutting principle is similar to oxyacetylene cutting. It is as a warm-up heat source with a laser as a cutting gas, oxygen and other reactive gases. Blowing out of gas on the one hand and cutting metal effect, the occurrence of the oxidation reaction and emit a large number of oxidation heat.