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MEMS, sensors, and energy harvesting: where are the applications?

161114 Mike Perrotta photo -- croppedEnergy harvesting (EH) has long been hailed as the remedy to replace primary batteries and provide reliable, perpetual power for applications ranging from industrial sensors, to tire pressure monitoring systems (TPMS), to medical implants.  In reality, however, the adoption of energy harvesters has been sluggish at best, and a major challenge has been to identify applications and use cases where there is true value.  We recently spoke with Mike Perrotta, CEO at microGen, about the latest trends in energy harvesting technologies and applications.

Continue reading "MEMS, sensors, and energy harvesting: where are the applications?" »

November 14, 2016 at 02:17 PM | Permalink | Comments (0)

microGen appoints new CEO, continuing to develop energy harvesting solutions

Microgen logoDr. Robert G. Andosca announced this week his resignation as President and CEO  from microGen Systems to pursue new Internet of Things (IoT) technology interests both academically and via starting other new companies.  "Robert has made significant inroads and brought this technology and company to be the leading provider of piezo-MEMS based vibrational energy harvesters in the world," said Mr. Michael Perrotta, the newly appointed CEO.

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September 07, 2016 at 11:14 PM | Permalink | Comments (0)

MEMS based energy harvesters transform waste into electricity

Ornl2 Billions of dollars lost each year as waste heat from industrial processes can be converted into electricity with a technology being developed at the Department of Energy's Oak Ridge National Laboratory.  The high-efficiency thermal waste heat energy converter actively cools electronic devices, photovoltaic cells, computers and large waste heat-producing systems while generating electricity, according to Scott Hunter, who leads the development team.  The potential for energy savings is enormous.

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May 19, 2011 at 09:02 PM | Permalink | Comments (0)

Stable patterned electrets for MEMS based energy harvesters

by Mieke Van Bavel, Ph.D.
Science Editor, IMEC

100930IMECPhotoMiekeVanBavelsmallsmall Wireless sensor nodes are nowadays employed in many different application fields such as healthcare, automotive and predictive maintenance, but these sensors currently provide limited lifetime as they require significant power for operation.  Increasing lifetime, preferably unlimited, becomes possible with energy harvesting.  One promising way for power generation is vibrations, and an electrostatic transduction method can be employed to transfer mechanical into electrical energy.  An electrostatic energy harvester is, in essence, a movable capacitor which needs a high voltage source for power generation.  A patterned electret could operate as this voltage source.  In its most general meaning, an electret is a material that stores a quasi-permanent electric charge upon its polarization. It can be called the electrical equivalent of a permanent magnet.  It is an important component for a MEMS based energy harvester.

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September 30, 2010 at 10:09 PM | Permalink | Comments (2)

MEMS microbots harness insect “know-how”

by R. Colin Johnson
Contributing Editor, MEMS Investor Journal

100715rcjMEMSmothMicrobots based on MEMS have long been sought to collect environmental samples, to search for survivors in collapsed buildings and for other reconnaissance style missions that are ill-suited for people.  Although decades in the making, one major “hang-up” for fully autonomous operation of such microbots remains – a locomotion source.  The tiny mechanisms and electrical circuitry are relatively easy to cast, but currently there are no reliable locomotion sources on such a small scale.

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July 15, 2010 at 09:24 PM | Permalink | Comments (0)

Microstructured piezoelectric shoe power generator outperforms batteries

by Ville Kaajakari, Ph.D.
Assistant Professor, Louisiana Tech University

100421VilleKaajakariArticleImage1 Energy harvesting is an attractive way to power MEMS sensors and locator devices such as GPS; however, the power harvesting technologies often fall short in terms of power output.  For example, vibratory MEMS generators might give out only microwatts of electrical power.  While this may be sufficient for emerging ultra low power sensors, many current applications require milliwatt power levels.  As an example, commercially available running sensors for shoes consume over 100 uW of electrical power and requirements for GPS locators are even higher.

Continue reading "Microstructured piezoelectric shoe power generator outperforms batteries" »

April 21, 2010 at 08:03 AM | Permalink | Comments (8)

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