Instead of using just one magnetic sensor, [Peter] is building a two-dimensional array of magnetic sensors. Basically, it’s just a 12×12 grid of Hall effect sensors wired up to a bunch of analog multiplexers. It’s a complicated bit of routing, but building the device really isn’t hard; all the parts are easily hand-solderable.
The ones we used were custom made but we did have promising results using the readily available GMR and TMRs a while back.
Key features include the ability to stack ten profiles of up to 6.5 metres in length, automatic cutting in all angles between 30° and 150°with accuracy of 0.1°, the ability to open drain slot routing, drilling and milling at variable angles, the ability to work with data from different window production software packages, optimisation ensures minimum wastage and the reassurance of a safe production facility thanks to the three-dimensional collision and error control system.
These American tunnels will not be long digs such as in Switzerland. You are going underneath folds in the Appalachians, probably only 5,000 feet. Does not take long to do. Even at only 100 feet a day, you are all done digging in two months. Goes fast.
Tags: Arts Sciences and Engineering, award, Hajim School of Engineering and Applied Sciences, Institute of Optics, Laboratory for Laser Energetics, lasers, Michael Campbell, Nobel Prize, Wayne Knox
In combat, laser rifles would be useful for a wide variety of situations; soldiers in urban combat could use the PY132A, WJG-202 and BBQ-905 laser rifles to destroy the sensitive thermal imagers of enemy tanks or blind slow flying UAVs. Special forces could use them to knock out enemy security cameras and sabotage sensors. Such uses meet the international protocols in definition, but there are still concerns. When used against the sensors of manned aircraft such as attack helicopters, the beam scattering effect of all lasers, blinding ones included, means that pilots’ eyeballs could become "collateral" damage.
The event will return from 10 – 12 September 2019 at the Dubai World Trade Centre, alongside Gulf Glass exhibition, organisers announce.
Trumpf once again demonstrated why they are one of the leaders in sheetmetal machinery. Their laser cutting machines with up to 8 kW in either “Fiber” or CO2 design are the largest and fastest for cutting thick plate. Together with their advanced programming system TruTops they perform at incredible speeds in various metals.
I doubt it. Each board has it’s own Mosfet switching system. I don’t think you could rely on them both switching at the same time. if they don’t switch at the same time. I am pretty sure the Mosfets will fail. See:http://spaco.org/Blacksmithing/ZVSInductionHeater/1000WattZVSInductionHeaterNotes.htm
Problem is, there is a lot of industry involvement in cycling that almost mirrors that of F1 or auto racing. Trek/Giant/Specialized you name it uses it’s teams as a test bed for their high end bikes and to basically push new products/ideas to their limit. So if you take away the differentiation between bikes, you run into push back from the industry.
On the downside, ALON is expensive — in the armored glass market, it’s about 5 times the price of traditional laminated glass. But it has so many benefits, not least of which is superior scratch resistance, that for some applications it’s the material of choice. Chances are good that increased demand for the material will drive costs down, and it may not be long before Gorilla Glass is replaced by transparent aluminum smartphone screens that might actually damage the pavement when you drop your phone.
The production of robust composite materials requires strong covalent chemical bonding between the filler particles (CNTs) and the polymer matrix, rather than the much weaker van der Waals physical bonds which occur if the CNTs are not properly functionalized.
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