A new NEMA standard covers the measurement of field-of-view and coverage qualities for vacancy and occupancy sensors using passive infrared, ultrasonic, or microwave technology. The National ...

The IR sensor array, which on the palm-sized vehicle consisted of just a handful of components, evolved into a PCB-backed bar nearly 0.5 meters wide. Potentiometer tuning was a fiddly affair, but ...

Why Your Smartphone Needs an Infrared Sensor You could use a heat sensor to check your house for leaks, for instance. But mostly, it's a lot of fun.