摘要：The working time of a single mine surveyor or the working time of a whole “Mine Surveying Ergatic System” (MSES) depends on various factors. These factors are: different qualities of a surveyor as a professional and a person, his emotion and attention, accuracy and comfort of mine surveying instruments, and the mine working environment. These factors make it possible to conclude the MSES working time to be a stochastic quality. In our research, a unimodal alpha-distribution was used. We have studied the working time of 1 type of MSES: “measurements of horizontal angle”. More than 80 mine surveyors and students have taken part in the experiments. The alpha-graphic line shows an accurate interpretation of different points, so it may be used in testing mine surveyors’ professional skills.
关键词：Mine SurveyingMine Surveying Ergonomic System (MSES)EmotionAttentionWork ProductivityRandom VariableWorking Time DistributionNormal LawWorking TimeMathematical ModelHistogramsAlpha-DistributionCharacterizing Points of This DistributionTesting
