Sometimes we need a non-contact liquid level sensor. There are several ways to build that, but the easiest is to try an optical liquid level sensor. You may already have an idea in mind since you are ...

Researchers have demonstrated the first prototype device that measures optical power delivered through optical fiber at nanowatt levels. Researchers at the National Institute of Standards and ...

As sailors in the 17th century learned the hard way, having an accurate clock for navigation is pointless if it is too delicate to carry aboard ship. The same goes for the super accurate optical ...

Apple's iWatch may include optical sensors designed to measure physical functions like heart rate and oxygen levels, according to electronics analyst Sun Chang Xu of Chinese site Electrical ...

The optical level sensor FFAR is a robust measuring device in a stainless steel housing that detects level via infrared light and is therefore able to identify various non-conductive liquids. It is ...