This motion control card is the first to communicate and supply power at the same time using an Ethernet bus, working at distances up to several thousand yards. It has an integrated Web server, using Ethernet protocol to control 10-48V dc brush motors. It can work with protocols like http and TCP-IP that are already embedded in most major computer operating systems, plus it runs from an Ethernet cable at powers up to 15W (card + motor), using the latest IEEE 802.3af standards. An external power supply allows the card to work at up to 70W continuous and 140W max. Its embedded RISC processor has a 4-quadrant, 32-bit RISC PID regulator, refreshing power regulation of to 4KHz with a sampling rate of 20-2,000Hz, so it can control brushed dc motors by position and speed, and position with a trapezoidal speed profile. They come in a variety of available modes.
Conventional wisdom holds that MIT, Cal Tech, and Stanford are three of the country’s best undergraduate engineering schools. Unfortunately, when conventional wisdom visits the topic of best engineering schools, it too often leaves out some of the most distinguished programs that don’t happen to offer PhD-level degrees.
Airbus Defence and Space has 3D printed titanium brackets for communications satellites. The redesigned, one-piece 3D-printed brackets have better thermal resistance than conventionally manufactured parts, can be produced faster, cost 20% less, and save about 1 kg of weight per satellite.
A group of researchers at the Seoul National University have discovered a way to take material from cigarette butts and turn it into a carbon-based material that’s ideal for storing energy and creating a powerful supercapacitor.
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