Smartwatches and fitness trackers face loads of daily abuse. Strapped to our wrists, they brush off bumps, knocks, dirt, and splashes. Understandably, they face the occasional problems and issues, but ...
Abstract: An open-cavity optical fiber gas pressure sensor based on the Vernier effect is proposed. The sensor consists of two Fabry-Perot interferometers (FPIs) connected in parallel. As a sensing ...