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Powering low-cost wireless condition monitoring systems

18 June 2007

Perpetuum’s energy harvesters were demonstrated powering the world’s first low cost industrial wireless condition monitoring system on Prüftechnik’s stand at the recent Hannover Fair. The PMG17-100 energy harvesting microgenerator converts machine and plant vibration into useful electricity, enabling wireless sensors to transmit large amounts of critical data.

The microgenerator operates on vibration from plant or machinery running on mains frequency at 50Hz. It transforms the kinetic energy of vibration into an electrical current, producing ample power for a wireless transmitter to send 6kb of data (for example, a vibration spectrum), every few minutes, or smaller amounts of data several times a second. Installation is easy; it is simply placed on the equipment to be monitored without the need for a shut-down.

The technology enables wireless sensing nodes to monitor plant, processes and machinery, remotely, wirelessly and without any batteries. It eliminates the need for cables, costly installation and time consuming maintenance.

Perpetuum has been working with partners, including leading European condition monitoring provider, Prüftechnik, and wireless solutions provider, Nanotron, to develop this commercial solution for condition monitoring applications.

“We are delighted to have worked with Prüftechnik and Nanotron to bring this wireless condition monitoring solution to market,” says Roy Freeland, Perpetuum’s chief executive. “The result of this collaboration will allow plant operators and managers to improve efficiency through timely and accurate management of plant assets.”

The PMG17-100 is the latest offering from Perpetuum, whose other product developments include microgenerators for transportation, medical and aerospace industries.

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