Effect of pressure on electrospray characteristics

Marginean, Ioan; Page, Jason S.; Kelly, Ryan T.; Tang, Keqi; Smith, Richard D.
November 2009
Applied Physics Letters;11/2/2009, Vol. 95 Issue 18, p184103
Academic Journal
An experimental study of pulsating electrosprays operated at subambient pressure is reported. The pressure domain that affords stable electrospray operation appears to be limited by the vapor pressure of the liquid. The voltage driving the electrospray is shown to have a logarithmic dependence on pressure. The observed scaling amends the relationship currently used to calculate the electric field at the tip of the meniscus of an electrified liquid.


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