CAJ | 학술논문

通过对非矿井作业环境中使用的气体检测仪的检定，发现部分气体检测仪的零点示值和检定示值超差，即零点漂移和量程漂移超差，需要重新调整后才能合格，其中部分气体检测仪经调整后仍然达不到合格标准。但是检定规程中只要求首次检定时做零点漂移和量程漂移检定项目，忽视了后续检定中气体检测仪零点漂移和量程漂移项目的检定。从气体检测仪工作原理、漂移产生的原因等几个方面分析，论证了在气体检测仪后续检定中漂移检定的必要性。
통과대비광정작업배경중사용적기체검측의적검정，발현부분기체검측의적영점시치화검정시치초차，즉영점표이화량정표이초차，수요중신조정후재능합격，기중부분기체검측의경조정후잉연체불도합격표준。단시검정규정중지요구수차검정시주영점표이화량정표이검정항목，홀시료후속검정중기체검측의영점표이화량정표이항목적검정。종기체검측의공작원리、표이산생적원인등궤개방면분석，론증료재기체검측의후속검정중표이검정적필요성。
Through the inspection for the gas detector used in the non-mine operation environment, it is found out there exist some differences at zero point indication and inspection indication of some gas detectors, that is to say, there are differences at zero drift and range drift. They need adjustment again and then can become qualified. Even so, some of gas detectors can not meet the qualified standards after the adjustment to them. But in the regulation of inspection it is required to inspect zero drift and range drift items for the primary test, which neglects the zero drift and range drift items of gas detectors in the subsequent inspection. Therefore, the paper makes the analysis from the aspects of working principle of gas detector and the causes of drift occurrence, and demonstrates the necessity of drift inspection in the subsequent detection of gas detectors.