Tech Briefs Magazine - April 2024 - 39
difference and use it to determine how
the coil is moving. If you can keep track of
your movements, then you know where
you are relative to where you started. This
is called inertial navigation. "
According to Mitchell, the technology
can also be used to remotely detect the
ripeness of fruit, as gas emitted by ripe
fruit is absorbed by light in the mid-infrared
part of the spectrum.
" A drone hovering in an orchard
would transmit light to another which
would sense the degree to which the
light is absorbed and when fruit is ready
This lithium niobate chip is the size of a fingernail
and is made on thin-film lithium niobate and can
be used in telecommunications, to make our internet
faster. (Image: RMIT University)
for harvesting, " he said. " Our microchip
technology is much smaller, cheaper,
and more accurate than current technology
and can be used with very small
drones that won't damage fruit trees. "
" We have the technology to manufacture
these chips in Australia and we
have the industries that will use them, "
Mitchell said. " Photonic chips can now
transform industries well beyond optical
fiber communications. "
For more information, contact RMIT
news at news@rmit.edu.au; +61 439-704077.
SuperGPS
Accurate Within 10 Centimeters
An alternative positioning system that is more robust and accurate than GPS - especially
in urban settings.
Delft University of Technology, Delft, Netherlands
T
his new technology - developed by
engineers at Delft University of Technology,
Vrije Universiteit Amsterdam,
and VSL, and which can achieve an accuracy
of 10 centimeters - is important
for the implementation of a range of location-based
applications, such as automated
vehicles, quantum communication,
and
next-generation
communication systems.
Current navigation satellite systems
boast weak radio signals when received
mobile
on Earth, and tall buildings can hinder
their accuracy too.
" This can make GPS unreliable in urban
settings, for instance, " said Christiaan
Tiberius of Delft University of Technology
and Coordinator of the project, " which is
Tech Briefs, April 2024
www.techbriefs.com
39
http://www.maritime-recon-usa.com
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Tech Briefs Magazine - April 2024
Table of Contents for the Digital Edition of Tech Briefs Magazine - April 2024
Tech Briefs Magazine - April 2024 - Intro
Tech Briefs Magazine - April 2024 - Sponsor
Tech Briefs Magazine - April 2024 - Cov1
Tech Briefs Magazine - April 2024 - Cov2
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Tech Briefs Magazine - April 2024 - Cov3
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