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行走时可产生能量的双肩包 以后出门在外手机充电就靠它啦

kira86 于2019-08-29发布 l 已有人浏览
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可以在你走路时收集能量的双肩包,以后出门在外手机充电就靠它啦。如果你将背包负载增加到45磅,背着背包只需走动12小时就能给三星Galaxy S10智能手机充满电。
    小E英语欢迎您,请点击播放按钮开始播放……

Backpack Harvests Energy As You Walk

可以在你走路时收集能量的双肩包

When you walk with a backpack, you know how the stuff inside sways from side to side? Now scientists have figured out how to tap into that motion…to generate electricity. Here's how it works. Picture a pendulum, mounted to a backpack frame, and stabilized with springs on either side. The pack's weight is attached to the pendulum, so the pendulum swings side-to-side as you walk. Gears then use that swinging motion to drive a generator. And the generator spits out electrical current to charge a battery.

当你背着背包走路的时候,你知道书包里面的东西是如何左右摇摆的吗?现在科学家们已经找到了利用这种运动来发电的方法。它是这样工作的:想象一个摇锤,装在背包框架(贴背的部分)上,摇锤的两边都有弹簧。背包的重量与摆锤相连,所以当你走路时摇锤会左右摆动。然后齿轮利用摆动来驱动发电机,而发电机发出电流给电池充电。

E时彩开户Volunteers carried the pack while walking on a treadmill, and wore masks to measure the flow of oxygen and carbon dioxide. Walking with the slightly swaying 20-pound load, the device did not significantly affect the volunteers' metabolic rate, compared to when they carried the same weight fixed in place. In fact, the energy harvesting pack reduced the forces of acceleration they'd feel in a regular pack - which might mean greater comfort for a long hike. And the device did produce a steady trickle of electricity. The operative word being trickle.

志愿者们在跑步机上背着背包,并且戴着口罩测量氧气和二氧化碳的流量。与携带背包固定的重量相比,在背包负重20磅的情况下行走,该设备对代谢率并没有显著影响。事实上,相比普通背包,能量收集包减少了加速感——这可能意味着长途旅行(背这种背包)会更舒适。这个装置确实产生了稳定的电流。最重要的词是“细流”(trickle)。

Because if you up the load to 45 pounds, the passive motion of the pack could fully charge a Samsung Galaxy S10 smartphone only after 12 hours on the trail. The details are in the journal Royal Society Open Science.

因为如果你将背包负载增加到45磅,背着背包只需走动12小时就能给三星Galaxy S10智能手机充满电。详情发表在《皇家学会开放科学》杂志上。

But here's the rucksack rub: the energy harvesting device currently weighs five pounds。 The researchers say that's about four pounds too many to be a smart alternative to batteries。 So they hope that more research lets them lighten the load。 To ensure the pack charges you up…without weighing you down。

但这还涉及到背包摩擦:目前的能量收集包重5磅。研究人员称,约4磅重的电池装置在重量方面真不是个明智的选择。所以研究人员希望通过更多的研究给电池装置减重。确保背包能在不让你感到沉重的情况下给你的设备充电。

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