Computation of electric fields and particle motion in electrodynamic balances

Focusing in a quadrupole acoustic channel

“…Electrodynamic and electrostatic concentrating and focusing of ions and nanometer charged particles has become a major tool for studies involving single and multiple particle reactions and dynamics (see Davis, 1985;Hutchins, Holm, & Addison, 1991;Kane, Oktem, & Johnston, 2001;Loyalka, Tekasakul, Tompson, & Warder, 1995;Wuerker, Shelton, & Langmuir, 1959).…”

Trajectory calculation of a trapped particle in electro-dynamic balance for study of chemical reaction of aerosol particles

“…where z is the position of the particle with respect to the centre of the balance (m), m is the weight of single aerosol particle (kg), η is gas viscosity (kg･(m･s) -1 ), d p is diameter of single aerosol particle (m), and E(t,z) is vertical electric field strength at the position of a particle (V･m -1 ) [6]. The aerodynamic drag force was defined for sphere in the Stokes' regime in second term of right side in equation (2).…”

A History of Single Aerosol Particle Levitation

“…Davis (1985) derived an analytic approximation for C,, and based on measurements of the marginal stability limit or spring point, Taflin et al (1989) found C, 7 0.79 for a SHEL having viewing ports drilled into the ring electrode. Recently, Loyalka et al (1995) reviewed some of the techniques used for computation of the electrical fields and provided additional computations. Arnold and Hessel (1985) used a SHEL to determine the ionization potentials of graphite and trans-polyacetylene.…”