Doing away with the electric leads connected to fuel gauges in car and
aircraft fuel tanks could improve safety, say engineers at Penn State
University, so they have developed an optical fuel gauge. Srivatsan Chakravarthy
shines a pair of intersecting light beams through a window in the top of the
tank. The distance between the two spots where the beams strike the surface of
the fuel reveals how full the tank is. Chakravarthy is now refining the system
to cope with jolting, sloshing fuel in a fast moving vehicle.
To continue reading, today with our introductory offers
Advertisement
More from 91av
Explore the latest news, articles and features
Mind
The relationship recession is even bigger for Gen Z than we thought
News
Technology
Killer robots are here – we must finally decide whether to accept them
Leader
Technology
Quantum computer quickly mines cryptocurrency while using less energy
News
Mind
How to sparkle in conversation with strangers
Comment
Popular articles
Trending 91av articles
1
Fully autonomous drones have killed human soldiers for the first time
2
Alice Roberts: The forgotten origins of the human body
3
How to sparkle in conversation with strangers
4
The relationship recession is even bigger for Gen Z than we thought
5
Mirror life: Scientists clash over threat of lab-engineered bacteria
6
Wolves seen hunting European bison in rare camera-trap recording
7
Have we finally worked out how Venus flytraps snap shut?
8
The last-ditch plan to save coral reefs from utter destruction
9
Cystitis or tooth decay could trigger dementia just a few years later
10
The 14 best science and tech documentaries of 2025 so far
