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Rechargeable outdoor batteries

2020-01-17 17:20:41 | 科技

3D printed solar harvester is in impact a chargeable out of doors battery, plus the real problem he faced when creating it was having it deal with the outdoors reliably. The great news is usually that part is solved, and his newest style and design is currently also versatile adequate to deal with several different common and inexpensive elements for instance different battery connectors, charge controllers, and photo voltaic panel sizes. All that’s remaining is always to set it up working with the GoPro-style mounting clamp and permit it absorb people photo voltaic rays.

We saw his 1st model earlier this 12 months, which uses inventive and low-cost methods for weatherproofing like coating the 3D print with epoxy (the brand new version tends to make this less difficult and less messy, incidentally.) It had been a high-quality style and design, but only labored with just one distinct photo voltaic panel dimension and 1 distinct configuration of pieces.

His most recent model tends to make a few mechanical improvements and accommodates lots of unique components and photo voltaic panel sizes. The CAD data files are all out there to the GitHub repository but he’s conveniently presented STL data files for around a dozen prevalent measurements.

When it comes to harvesting mild, being indoors presents much less ability but needs a considerably a lot less rugged set up. If that pursuits you, you should definitely look at out the Small Solar Energy Module (TSEM) which could scrape up even indoor gentle.


Flying using the sunlight: a 4-year solar-powered remote-controlled aircraft

2020-01-10 18:21:13 | 科技

Many of us have initiatives that finish up spanning a number of several years and several iterations, and gets revisited each and every time inspiration strikes and you have forgotten just exactly how much do the job and annoyance the former round was. For [Daniel Riley] AKA [rctestflight] that job is really a photo voltaic driven RC plane which up to now spans 4 many years, 4 versions and thirteen videos. It can be a treasure trove of information gathered by tricky practical experience, covering carbon fibre design strategies, photo voltaic energy administration as well as the difficulties of testing within the authentic world, amid others.

Photo voltaic Aircraft V1 had a nine.5 ft / two.9 m carbon fibre skeleton wing, covered with transparent film, along with the fragile monocrystaline solar cells mounted inside of the wing. V1 knowledgeable a number of crashes which shattered all of the photo voltaic cells, right up until [Daniel] found out that the wing flexed below aileron input. In addition it did not have any form of solar charge command. V2 additional a next wing spar into a somewhat extended nine.83 ft / 3 m wing, which authorized for more solar cells.

Solar Aircraft V3 was upgraded to utilize only one hexagonal spar to save lots of pounds while still keeping rigid, plus the photo voltaic cells were more sturdy and successful. [Daniel] did many screening to uncover an best solar charging set-up and found that using the photo voltaic array to charge the batteries instantly within a well-balanced program basically works equally nicely or far better than an MPPT cost controller.

V4 can be a departure through the sophisticated carbon fibre style, and uses a simple foam board flying wing which has a stepped KF airfoil rather. The craft is much scaled-down with only a 6 ft / 1.83 m wingspan. It performed extremely very well, holding the battery thoroughly billed during the complete flight, which sad to say resulted in a crash just after modifying the autopilot. [Daniel] suspects the principle reasons with the enhanced efficiency are greater excellent solar power panels plus the actuality that there's no more movie masking the cells.


Passive components are the future of shrinking technology

2020-01-03 18:16:42 | 科技

Smaller case size passive components are important developments in helping reduce the physical size of the electronic goods into which they are sold. Those products that have had the greatest impact on driving the development for smaller case size capacitors, resistors and inductors include smartphones, laptop computers, personal digital assistants, digital still and video cameras; and flat panel displays.

In ceramic capacitors, with emphasis on MLCCs, miniaturization has been dramatic, with global demand switching from the larger 0805 case size parts to the smaller 0603 and 0402 case size parts, and then dropping down to the astonishing 0201 (EIA) case size in 2003, and by 2016 the 01005 had created a firm foothold as the next generation in extremely small electronic components. And now the trend moves forward with the introduction of the 008004 in MLCC thick film chip resistor and in ceramic chip inductor (very cutting edge, very state of the art).

But as the discussions around the conference rooms for many of the major brand name OEMs who dominate the high-tech economy, the goal has to be to be able to produce an entire power amplifier or communication module in a 0201 case size. To achieve that goal in the future, to drive the Internet of Everything into the granularity of human existence, the passive components in the design need to provide their function but be invisible, and be as exactly precise in their performance as possible.

To achieve that goal, major design houses will have to extend the palette of the materials that they work with; a more expanded view of the periodic table; and expand the processing capabilities of the machines they use to build the products of the future.