EXTERNAL FORCE DETECTION DEVICE AND WIRING BREAKAGE DETECTION METHOD

摘要

An external-force detecting apparatus (301) includes one or more drive lines (LD) connecting the corresponding drive electrodes to a driving unit (251) and one or more monitor lines LM connecting the corresponding monitor electrodes to the driving unit (251). The driving unit (251) outputs a drive signal to the one or more of the drive electrodes through the one or more of the drive lines (LD) to drive an oscillator (1) and performs automatic gain control to the level of the drive signal on the basis of the oscillation state of the oscillator (1) acquired from the one or more of the monitor electrodes through the one or more of the monitor lines LM. The external-force detecting apparatus (301) further includes a switching circuit (25) switching connection and disconnection of an electric path between the oscillator (1) and the driving unit (251) via at least one of the multiple drive lines (LD) or the multiple monitor lines LM.