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美国矿业局对创制探测矿井潜在危险环境的传感元件有强烈的兴趣,井下常见的潜在危险事故有冒顶、甲烷积聚和火灾.例如,发现火灾的方法是用简单的温度计,温度上升速率指示器与一氧化碳监视器.用一氧化碳监视器探测火灾,可预报自燃发火.同样,若能早期发现岩层的分离,则可采取措施,预防可能发生的冒顶事故.对全矿性的监视系统也日益受到重视.这种系统需要大量的价廉且准确可靠的甲烷、一氧化碳、温度、气压或风流以及含氧量的检测元件.但是迄今为止,用于上述参数的传感元件,价格昂贵,可靠性差,并且不适应井下环境.
The US Bureau of Mines has a strong interest in creating sensing elements that detect potentially dangerous environments in mines, including potential roof tops, methane buildups and fires, such as the discovery of a fire using simple thermometers, temperature rise rate indicators And carbon monoxide monitor. Detecting fire with carbon monoxide monitor can forecast spontaneous combustion. Similarly, if the separation of rock strata can be detected early, measures can be taken to prevent possible roof-fall accidents. Such a system requires a large number of inexpensive, accurate and reliable detection elements for methane, carbon monoxide, temperature, pressure or wind flow, and oxygen, but so far the sensing elements used for these parameters are expensive and less reliable Not suitable for underground environment.