Fig. 1
From: Electrohydrodynamic (EHD) drying of the Chinese wolfberry fruits
a Schematic diagram of EHD drying. 1 Thermometer. 2 Hygrometer. 3 Sample. 4 Amperemeter. 5 Grounded electrode plate. 6 Needle electrode. 7 High voltage power source. 8 Voltage regulator. b Arrangement diagram of needle electrodes. 1 Needle electrodes. 2 Stainless steel wire. 3 Stainless steel frame. c Schematic diagram of needle electrodes