Startup MicroGen Systems Aims to Shake Up Energy Harvesting

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2/25/2013 10:33 AM EST

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2/20/2013 8:09 AM EST

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2/1/2013 6:09 AM EST

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The energy that has been created and left for a long time to be able to use it would make a lot of people looking forward to be able to use it.
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1/28/2013 8:34 PM EST

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1/12/2013 7:09 PM EST

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10/26/2012 8:58 PM EDT

Luis Sanchez

How would the devices be vibrated? Just by sitting there and receiving the mechanical vibrations from, perhaps the tires of the car moving?
If the devices are tuned to vibrate at a certain frequency how to ensure their vibration source actually makes them vibrate at such frequency?
The report in the company's website is a little outdated. 2008.

Or perhaps, do the chips receive energy from the battery and then resonate and this way generate energy and pump out in to the circuit?

5/20/2012 7:33 PM EDT

MrBoston2004

MicroGen's MEMS piezoelectric vibration energy harvesters (PZEHs) capture kinetic energy from ambient vibration. So, anything that is desired to be monitored for its condition or position that mechanically vibrates is its own energy source.

The MEMS-based PZEH or BOLT design determines the vibration frequency. Hence, a priori knowledge of dominant frequencies fi and acceleration amplitudes Gi are needed. It is targeted at markets, like industrial, building and commercial apps, that have fixed vibration signatures.

MicroGen's new design VIBE (vibration induced broadband excitation) captures vibrational energy from ultra-low frequencies over a very broad frequency range (1 Hz to hundreds of Hz). This was demonstrated at the Sensors Expo on June 6-7, 2012.

MicroGen has been working close to the vest the last couple of years. A new website will be launched soon.

6/12/2012 7:52 AM EDT

sharps_eng

With narrowband high-Q systems, the collection response peaks at the stimulus frequency, but drawing power off creates a load on the resonant system, lowering Q and widening bandwidth. If any significant power is drawn the response curve can flatten out altogether, ie no resonant effect.

So what is the advantage of making these things resonant? Is it because it is difficult to make them non-resonant ?

Actually, making anything that small resonate at sub-100Hz is amazing; you can't add grease or rubber damping!

3/24/2012 6:38 PM EDT