【摘要】 以光声效应的基本原理为理论基础,介绍了应用光场效应检测粉煤灰中碳含量的研究及仪器的结构设计。该仪器以计算机为操作平台,通过一数据采集卡将光声池中产生的光声信号采集进计算机,经计算机数据处理,给出所测样品的碳含量。检测实验数据说明,该方法是一种简便、低廉、精确的检测方法。更多还原

【Abstract】 By combine fundamental principle of photoacoustic response, the measuring unburnt carbon in fly ash by photoacoustic response is studied, and the instrument design is introduced. This instrument operation measuring by computer. It picked photoacoustic signal by a data gather card. The computer processed the data and gaven the result. This is a method of facility?cheap and exact.更多还原