Fig. 1: Proposed multimodal wearable ring and raw data during scratching.
From: A multimodal sensing ring for quantification of scratch intensity
a Components of the proposed multimodal wearable device. Right: human hand with wearable device donned. Top left: Rendering of the sensor suite inside of the ring consisting of an accelerometer and contact microphone. Bottom left: rendering of the custom printed circuit board with an operational amplifier for the contact microphone, a microcontroller, and other supporting electronics. b Clips from a finger movement only scratching motion are shown with corresponding raw data from the contact microphone and accelerometer (z-axis). 1–3: Fingers move up forearm. 4–5: Fingers move back down arm. We include Supplementary Movie 1, which shows synchronized contact microphone and wearable data for scratching behavior.
