Research on the Rapid Measurement Technique of Gas Content

Gas content is basic data for preventing gas disaster. So it is especially important for rapidly measuring gas content. Based on the experiments of typical mines’ coal samples in China, the rapid measurement nonlinear surface model of gas content was established by using theoretical analysis and nonlinear regression method and the rapid measurement instrument and parameters modified instrument were developed. The results showed that there was high nonlinear surface relationship among the desorption characteristic parameters value a, i and gas content W. The rapid measurement nonlinear surface model can well describe the relationship among value a, i and gas content W. The rapid measurement instrument can rapidly measure the gas content in the coal seam in 20 minutes. The error is less than ten percent. The performance is better than similar products both at home and abroad. It can meet the requirement of the project measurement of gas content.