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Fraunhofer Institute’s fruit checker device tracks optimum ripeness so you can stop sniffing those melons

August 4, 2009

Researchers at the Fraunhofer Institute have developed a small device that can be used to check the freshness of fruit, telling the interested parties whether it’s ripe or not. Based on previous technologies which measure, for example car emissions, the device measures the volatile gases emitted by the fruit and analyzes its makeup to determine the state of freshness. The team already has a working prototype, and sees the device, which would cost somewhere in the thousands of dollars range, as having widespread application for businesses that supply food to grocery stores. So far the device has only successfully been used to test the freshness of fruit, but researchers see possible future applications in testing meat as well.

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Fraunhofer Institute’s fruit checker device tracks optimum ripeness so you can stop sniffing those melons originally appeared on Engadget on Tue, 04 Aug 2009 22:31:00 EST. Please see our terms for use of feeds.

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Tiny, printable batteries promise to change the face of obnoxious greeting cards forever

July 2, 2009

Researchers at the Fraunhofer Research Institution for Electronic Nano Systems ENAS in Chemnitz led by Prof. Dr. Reinhard Baumann have unveiled tiny, printable batteries that they hope to put into production for pennies apiece. The new battery prototype is primarily composed of a zinc anode and a manganese cathode that can be screen printed and covered with a non-printed template cover. Each mercury-free battery weighs less than one gram, and can individually produce about 1.5 volts of electricity. By placing several batteries side by side, however, up to 6 volts can be generated. The institute has already produced these little power houses in the lab, and hopes to see them into production by the end of the year. The batteries have a relatively short lifespan, making them suitable for applications such as powering greeting cards. All we can say is that this battery would have made the card we got two years ago that sang “Word Up” much, much awesomer.

[Via Physorg]

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Tiny, printable batteries promise to change the face of obnoxious greeting cards forever originally appeared on Engadget on Thu, 02 Jul 2009 16:10:00 EST. Please see our terms for use of feeds.

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