【摘要】 根据离子在大气环境下弱电场中的运动规律,提出利用低电压建立瞬态漂移电场实现离子漂移的新方法,大大降低了建立漂移电场所需的电源电压。设计和制备了一种用于离子迁移率谱仪(IMS)的瞬态漂移电场控制电路系统,主要包括时序控制电路和高速开关电路,可以按实验要求调整瞬态漂移电场的强度及周期。进行了瞬态漂移电场原理实验并与传统IMS对照,初步验证了利用瞬态电场实现离子漂移的可行性。更多还原

【Abstract】 A new method of transient drifting electric field for ion mobility spectrometer(IMS) was presented.This method is based on the principle that the movement of ions is just related to the electric field where the ions are.The control circuit system,including sequential-logic circuits and high speed switching circuits,was designed in order to modulate the strength and cycle of transient drifting electric field.The experiments of IMS based on transient drifting electric field were carried out and compared with traditional IMS.The results validate the feasibility of the transient drifting electric field IMS preliminarily.更多还原