Heart Rate and Body Movement To give you the answer upfront, smartwatch sleep tracking simply uses a PPG sensor to pick up ...

An inertial measurement unit uses gyroscopes and accelerometers to measure motion and rotation. Here’s how aircraft, spacecraft and drones use that data. IMUs contain three accelerometers and three ...

There are a number of ways to construct accelerometers, but the ones in the iPhone (and probably most other consumer-level equipment) specifically are MEMS accelerometers. As I understand it, a change ...

Dynamic vibration measurements are critical in many applications, from military to automotive/trucks and machinery, as well as critical manufacturing sites, such as semiconductor wafer fabrication ...