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Probing Mars, Charging Cars

By R&D Editors | December 23, 2015

Charging a car with a portable charter that is a space spin-off from the Norwegian company Zaptec Courtesy of Zaptec Engineers developing a drill for probing Mars, the Moon and asteroids have created the world’s first portable charger to power up electric cars anywhere, anytime. Drawing on the same voltage as a vacuum cleaner, the charger can be plugged into any household socket without blowing a fuse.

The key lies in the tiny transformer, similar to the box on your laptop cable, which converts power from the grid to maintain a stable supply and cut charging times. 

  • Read more: A Few Ways NASA Technology Investments Benefit Society

Norwegian company Zaptec are also developing a space drill under ESA funding, with the transformer powering a plasma drill for slicing through rock.

“Rotary drills are inefficient in space,” points out Zaptec’s CEO, Brage Johansen. “They suffer friction in the borehole and require heavy equipment.”

ESA is funding Zaptec’s feasibility study to assess if their plasma Zapdrill is more effective or will drill deeper in our search for life on other planets.

“Right now, we’re scratching the surface,” explains ESA’s Sanjay Vijendran. “With today’s technology, we can go down about two meters for missions such as our ExoMars rover. But we want to get to at least 10 meters with the same size drill.

“We believe Mars might have underground water, which could potentially harbor life, but so far we’ve not had the technology to explore deep enough.”

Space scientists have been looking for a better way, and the answer might lie in a flash of lightning.

Plasma is the hot, electrically charged gas that powers the Sun and constitutes most of our Universe. On Earth it manifests as lightning, electrical sparks and the auroras over our poles. In its human-made form, plasma provides the light in fluorescent tubes and now the cutting edge of a space drill.

“The plasma drill is the closest thing to cutting rock with a lightsaber,” smiles Brage. “Our drill head produces small bolts of lightning one to five centimeters long that pulverize the rock from within.”

This lightweight drill requires no weighted bits or heavy generators. “On Mars, we have only 100 W available, and we can run the whole system below that using solar power and small batteries.”

Engineers have been crushing stone in laboratories with ‘lightning’ for half a century but only recently has progress in microelectronics enabled them to develop a drill.

Zaptec’s innovation lies in the compact transformers that provide the voltage for the plasma spark, thanks to advanced cooling techniques and miniaturization.

“We realized that the same transformers we were developing for the space drill could also make the best chargers for electric cars,” says Brage.

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