The Internet of Things (IoT) is quickly becoming ubiquitous, whether in the home, on the factory floor, or say, at the doctor’s office (Fig. 1). For the system engineer, there are many approaches to ...
Ultrasonics refers to signals that are above the human hearing span (>20 kHz), and usually in the 40- to 70-kHz range. These signals are used like radar—they’re radiated toward a target and reflected ...