Capacitive Sensor

摘要

One example disclosed wearable device includes a first housing portion having a conductive section and a non-conductive section. The conductive section is connected to ground. A second housing portion includes a printed circuit board (PCB) with a conductor on the PCB surface positioned beneath the non-conductive section. The conductor on the PCB surface and the conductive section form a capacitor of a capacitive sensor. The wearable device may also include a first adhesive layer between a surface of the non-conductive section of the first housing portion and the PCB surface. A second adhesive layer, coplanar with the first adhesive layer, may be applied between a surface of the conductive section of the first housing portion and the PCB surface. The first adhesive layer and the second adhesive layer form a water tight seal that prevents liquids from penetrating into at least the second housing portion.

主权项

1. A wearable device, comprising:
a first housing portion having a conductive section and a non-conductive section, the conductive section being connected to ground; and a second housing portion including a printed circuit board (PCB) with a conductor on the PCB surface positioned beneath the non-conductive section, the conductor on the PCB surface and the conductive section forming a capacitor of a capacitive sensor.