“For X-ray inspection, dual
energy detection is showing
good performance enhancement
on difficult to inspect or bulky
products. Products like frozen
French fries in bags or lumpy
individual quick freezing (IQF)
vegetables such as frozen
broccoli or cauliflower florets,
lend themselves well to this
technology,” says Burrows.
These machines are more
common in New Zealand and
there has been a lot more uptake
over the past 10 years he says.
“It used to be quite expensive
but now it’s come down to a
manageable price. It’s really
good for end of line protection.
When you have products in a
bag or tray and you’re looking,
for example, for a stone you will
then be able to look through
the bag and find a stone of a
certain size. You won’t find really
really small stones because of
the density differences but you
might be able to find something
that could break a tooth and
cause complaint.”
This technology is valuable as
it can also detect matter within
a product which other foreign
matter detection technology
- such as optical sorters -
wouldn’t see.
In the optical sorting space,
Pixel fusion technology
is the next big thing says
Burrows. Pixel fusion imaging
can fingerprint product and
foreign matter to allow better
separation, or contrast, between
the two and allow rejection of
the foreign matter, however
optical sorters come at higher
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info@heatandcontrol.com | www.heatandcontrol.com
FTR505
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