Patent ID: 7521673

Claim:
A wide-range and very high-resolution differential mobility analyzer (DMA), among the devices for discriminating chargeable particles that has an essentially prismatic analysis area with a rectangular cross-section in which an electric field is defined by the polarization of electrodes, likewise defining a cross flow wherein the cross flow is achieved by a closed, pressurized, aerodynamic wind tunnel with an average pressure greater than that of the atmosphere, free of sudden expansions and in laminar conditions or with a level of turbulence below 1% where the analysis area is essentially at atmospheric pressure and presents a configuration and two-dimensional conditions of the electric field E and of the cross flow where the injection of the charged particles is achieved by means of a slit essentially without the exchange of flow in the inlet, with the exception of the particles, in such a way that an area of impact is established that has at least one multi-track charge sensor.