在所有制造可燃气体检测的传感元件中,也许矿山安全研究院的催化元件经过一段时间证明为最有效。催化元件是矿山安全研究院在15年前发明的,它由线圈状铂金丝制成,其上用热分解法沉淀了几层耐火的氧化铝。在沉淀了足够的氧化铝而形成直径为1mm 的珠时,这些“坯件”用两种方法进行处理后,一种生 Among all sensing elements that make flammable gas detection, perhaps the mine safety research institute’s catalytic element proved to be the most effective over time. The catalytic element, invented by the Institute for Mine Safety, 15 years ago, is made of coiled platinum wire on which several layers of refractory alumina are precipitated by thermal decomposition. After enough alumina has been precipitated to form beads with a diameter of 1 mm, these “blanks” are treated in two ways, one after the other