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本文通过对气溶胶静电计(FCAE)校准技术进行研究,并对校准方法进行优化,以满足FCAE校准及对气溶胶数量浓度准确测量的需求。一、气溶胶静电计的原理及组成气溶胶静电计(FCAE)是国际公认的颗粒计数(数量浓度)最高标准,测量结果可溯源至电流。其工作原理为:当带有单一电荷的颗粒气溶胶进入FCAE的采样入口后,颗粒被截留在放置于法拉第杯中的高效过滤器上,此时由于空间电荷效应,颗粒携带的电荷会
In this paper, the aerosol electrometer (FCAE) calibration technique is studied and the calibration method is optimized to meet the FCAE calibration and the need for accurate measurement of aerosol concentration. First, the principle and composition of aerosol electrometer Electro-static electrometer (FCAE) is internationally recognized as the highest particle count (concentration) standards, the measurement results can be traced back to the current. The principle of operation is that when a single charged particle aerosol enters the sampling inlet of the FCAE, the particles are entrapped in a high efficiency filter placed in a Faraday cup at which point the charge carried by the particles