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LarryM99
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re: Researchers look at typing as power source
LarryM99   6/29/2011 10:48:48 PM
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That would work well for January through maybe about March, but the rest of the year those places don't get enough use to be a reliable source. I'm only about half kidding... Larry M.

Code Monkey
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re: Researchers look at typing as power source
Code Monkey   6/29/2011 10:02:00 PM
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It would work better with strongly typed languages. But seriously, thin film piezos charging a battery? They would be better suited to wide area sensors like flexible keypads and electronic whiteboards.

walken1
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re: Researchers look at typing as power source
walken1   6/29/2011 5:43:54 PM
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I agree, Duane. I've wondered why physical fitness clubs like 24-hour, etc., haven't found a way to harvest energy from people using gym equipment during their workouts. With all of the treadmills and ellipticals in use at any one time, you'd think there'd be an opportunity there somewhere.

Sanjib.A
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re: Researchers look at typing as power source
Sanjib.A   6/29/2011 4:01:21 PM
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Yeah...I am not able to understand the practical application of the energy harvested using the keyboard. Keyboard of what?...a laptop, or a PC? Where will you use that minute amount of energy? I think a real-time example would be helpful.

Duane Benson
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re: Researchers look at typing as power source
Duane Benson   6/29/2011 2:46:52 PM
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A keyboard seems like an odd place to be looking at energy harvesting. The math also doesn't seem to add up to me. if 200pA is 10x too small, what is 2nA enough current to do? The amount of harvestable power seems far more than a single order of magnitude too small. A better place to look might be in overall body motion; bending elbows and knees, for example.

nicolas.mokhoff
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re: Researchers look at typing as power source
nicolas.mokhoff   6/29/2011 2:35:40 PM
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Great comment, Frank! I suppose that the touch measurement will be time as well as pressure dependent and thus fast-to-the-draw typists will save more energy for their machines. I bet analog engineers might win with on-screen keyboards depending how quickly they can handle the mouse :):)

old account Frank Eory
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re: Researchers look at typing as power source
old account Frank Eory   6/29/2011 2:23:01 PM
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Digital design engineers do a tremendous amount of typing and could be a great power source. For analog designers, we would need to find a way to harness the energy in mouse movements :)

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