Abstract: This article presents a compact phase- variation sensor that achieves high linearity and a large phase variation at a single frequency for wide-range permittivity measurements. The sensing ...

Wearable health sensors such as photoplethysmography (PPG) wristbands, ECG patches and multi-modal biometric devices are typically developed and calibrated under controlled laboratory conditions.

Wrist pulse oximeters can look similar, making it hard to decide which one to buy. This in-depth guide covers everything you need to know to find your best fit.

A biomechanical well plate inspired by the pressure-sensing lateral line of fish can wirelessly monitor the pulse of multiple ...