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Issue Date: 17th October 2006
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New vibration energy harvester generates
more power from low levels of vibration
Following
the success of its PMG7 microgenerator, Perpetuum has launched
its next generation microgenerator, PMG17.
PMG17 is the next major breakthrough in vibration energy harvesting
technology. The wireless and battery-free device is capable
of generating useful energy from levels of vibration that
are 35% lower than previously possible, and across a large
bandwidth of vibration frequencies. OEMs, sensor manufacturers
and end-users can benefit from using the generators to power
easy-to-install devices that accurately monitor machinery
and processes such as the condition of plant equipment. This
allows them to make significant savings in installation time
and cost, often without shutdowns, as well as achieving the
operating benefits from increased monitoring and control.
The practical microgenerator is a proven energy source for
low-power electronic systems such as wireless sensor nodes.
It converts kinetic energy from vibration of equipment running
at mains frequency (50 or 60Hz) into electrical energy and
can generate up to 100uW when attached to a surface exhibiting
a minimum vibration magnitude of 16mg between 59Hz and 60Hz.
This is enough to power a wireless transmitter sending up
to 6Kbytes of critical condition monitoring data every few
minutes, or smaller amounts of data, such as temperature reading,
several times a second.
PMG17 covers a large bandwidth so it can accommodate commonly
observed slip frequencies of 60Hz AC motors. As a result it
requires no adjustment to harness energy from the majority
of induction and synchronous motors found in industrial applications.
The PMG17 is the “battery free” power behind many
wireless sensor nodes. These nodes enable the continuous monitoring
and control of plant machinery. Critical temperature and vibration
information can now be analyzed and acted upon by operations
staff. As a result, outages and unplanned machine downtime
can be minimized.
“This technology is continuing to prove itself following
the successful launch of our first generation microgenerator
earlier this year,” says Roy Freeland, CEO, Perpetuum.
“This new product is the next major breakthrough in
the technology. It allows users to gain valuable data from
levels of vibration that are 35% lower than previously possible.
No competitive offering has come close to this level of performance
in terms of the conditions under which will operate reliably.”
The microgenerator is a robust device capable of operating
in a multitude of industrial environments. It is easy to install
with no shut down of operations required. It can be attached
in any orientation and needs no maintenance.
It is a truly perpetual source of power.
For further information contact:
Perpetuum Ltd., C.E.I. (Building 27), The University,
Southampton SO17 1BJ.
Tel : +44 (0)23 8059 8866. email : info@perpetuum.co.uk
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