中速风表对风速测定的不确定度评定

Uncertainty Evaluation of the Wind Velocity Measurement Using Medium Velocity Ventometer

在测量井下巷道风速时,不可避免地会引入误差,故风速的真值难以确定。为探究风速测定的准确性,在兖矿集团兴隆庄煤矿7302轨联巷用中速风表进行风速测量,并把测量过程中引入的各个误差进行了不确定度评定经分析评定,我矿的7302轨联巷风速符合《煤矿安全规程》的要求。

Uncertainty Evaluation of the Wind Velocity Measurement Using Medium Velocity Ventometer Lu Peng, Li Changjie （Yankuang group co., LTD, Xinglongzhuang Coal Mine, Shandong Yanzhou 272102 ） It is inevitable that the error can be made during the course of wind velocity measurement in the roadway. Therefor, the correct value is uncertain. In order to explore the accuracy of the result, a medium velocity ventometer is used to measure the wind velocity in the 7302 rail conjunction roadway in Xinglongzhuang Coal Mine. In this paper, the uncertainty evaluation is done based on the analysis of the course and the source of error. The wind velocity in 7302 rail conjunction roadway meets the requirements of the Coal Mine Safety Rules.