Studying the principle and method of many sensitive elements which are used to detecting the gases dissolved in oil, sensors of MQ series that author selected have obvious selectivity and higher accuracy when they detect gases of H_2 and CO.

• 研究了传感元件检测变压器油中溶解气体的原理和方法,选用的MQ型系列传感器对变压器油中氢气H_2和一氧化碳CO气体具有明显的选择性和灵敏度;