Patent ID: 6963479

Claim:
A device for handling a fluid comprising: a corona discharge device including at least one corona discharge electrode and at least one collector electrode; and an electric power supply connected to said corona discharge and collector electrodes to supply an electric power signal by applying a voltage V t between said electrodes so as to cause a corona current I t to flow between said corona discharge and collector electrodes, both said voltage V t and corona current I t each being a sum of respective constant d.c. and alternating a.c. components superimposed on each other whereby V t =V d.c. +V a.c. and I t =I d.c. +I a.c. , a current ripple value I a.c. /I d.c. related to a voltage ripple value V a.c. /V d.c. as I a . c . I d . c . = C · V a . c . V d . c . wherein C≧2.