Transient Drifting Electric Field for Ion Mobility Spectrometer

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.