ION GENERATING DEVICE, AND DISCHARGE ELECTRODE ATTACHMENT MONITORING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an ion generating device capable of distinguishing an attachment abnormal state of a discharge electrode from a dust-or-the-like deposition state, and detecting it.SOLUTION: In an ion generating device 1 for making a discharge electrode 2 generate corona discharge by alternately applying positive and negative high voltages and generating air ions by the corona discharge, detection means 7 generates a determination signal HLS indicating the size relation between a size of a voltage signal Vp outputted from an impedance circuit 6 according to the application of the positive or negative high voltage to the discharge electrode 2 and a threshold T1.