对煤矿安全监测系统进行法定校准是保证煤矿安全的重要手段,但是对其进行在线校准却受到了多方面因素的限制。首先介绍了在线校准的现状以及应用到煤矿安全监测系统中所面临的诸多不易解决的问题;针对这些问题,提出了可能的解决方法即使用对比校准的方法,并对这一方法的可行性进行了分析;最后以矿用负压传感器在线校准装置为例详细介绍了煤矿安全检测系统在线校准的设计方法和注意事项。 The statutory calibration of coal mine safety monitoring system is an important means to ensure the safety of coal mines. However, the on-line calibration of coal mine safety monitoring system is limited by many factors. Firstly, the status quo of on-line calibration and the problems which are not easy to be solved in the application of coal mine safety monitoring system are introduced. In view of these problems, a possible solution is to use the method of contrast calibration and the feasibility of this method Finally, taking the on-line calibration device of mining negative pressure sensor as an example, the design method and precautions of on-line calibration of coal mine safety inspection system are introduced in detail.