(1) Sampling representative is firstly representative of the process product by the microscopic observation sample; secondly, the uniformity of the distribution of the ore sample in the agglomerate block when making the ore beam. The first representative, as long as the sampling is strictly in accordance with the sample reduction method, can basically be guaranteed. The uniform distribution of minerals in the ore block is mainly guaranteed by two methods. First, when making a ball ore, the ore sample and the binder should be fully stirred; secondly, the amount of binder added to the ore should be appropriate. Never too much. Otherwise, in the process of agglomeration of the agglomerates, the minerals will be stratified due to different specific gravity, resulting in uneven distribution of minerals. (2) Classification of the continuum type The size of the target mineral in the continuum is obviously continuous throughout the ore sample, but in the statistics, it is simply merged into several categories. For example, we count the particles in the "1/2" continuum, and the target mineral is never half in each grain. It may be 0.6, 0.55, 0.5, 0.45, etc. The resulting error is clearly related to the division of the statistical continuum type. It can be seen that the finer the division of the living body type, the smaller the gap between the statistical results and the actual situation. (3) Difference between plane measurement and actual stereoscopic condition This error does not substantially exist when observed with a stereoscopic microscope. When observing a cluster of light sheets under a reflective microscope, the exposed area is always smaller than the actual surface of the particles. Therefore, an illusion that the continuum appears in a monomer form is inevitably generated. This results in the illusion that the number of cells is high. (4) Check the number of particles. Of course, the more the number of particles is observed, the more accurate. However, in actual statistics, it is impossible to increase the number of particles without limitation. Theory and practice have proved that in each grade, as long as the number of minerals of 100 to 300 particles is counted, the statistical accuracy of more than 90% can be guaranteed. Dessert Box,Dessert Gift Boxes,Dessert Box Packaging,Dessert Packaging Boxes Hangzhou Aoxin Culture Technology Co., Ltd. , https://www.aoxinks.com
Measurement error of mineral monomer dissociation degree and its error source
As with any observation work, there is also an error in the degree of monomer dissociation measured under the microscope. In general, the magnitude of the error is mainly related to the following factors.