I recently came across a cool innovation in servo technology from a little company called QuickSilver Controls. The Mosolver is a servo motion actuator that infuses a position feedback sensor into the structure of a high-pole-count AC motor. This combination eliminates the need for an encoder and resolvers, and it results in robust closed-loop motion control.
For further precision, the servo's designers have added sense coils within the motor. Voltages are induced by these sense coils from a combination of the pulse-width modulation current ripple and the flux steering as a result of the rotor and stator interaction. The design removes a separate feedback device to make the overall package smaller (along with the overall bill of materials). And having everything packaged together increases the system's reliability. Many more details are available in the data sheet.
Enabling the Future is designing prosthetic appendages modeled more like superhero arms and hands than your average static artificial limbs. And they’re doing it through a website and grassroots movement inspired by two men’s design and creation in 2012 of a metal prosthetic for a child in South Africa.
In order to keep an enterprise truly safe from hackers, cyber security has to go all the way down to the device level. Icon Labs is making the point that security has to be built into device components.
Three days after NASA's MAVEN probe reached Mars, India's Mangalyaan probe went into orbit around the red planet. India's first interplanetary mission, and the first successful Mars probe launched by an Asian nation, has a total project cost of nearly $600 million less than MAVEN's.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.