Ever been on an airplane when the engines suddenly throttle up seemingly for no reason? It's probably because the pilot just switched from auto pilot (AP) back to manual control by disconnecting the AP and bringing the throttle levers back into the correct position. With SKF's new Automatic Throttle Control Unit, due out in two new planes in the coming months, that will no longer be an issue. "In older designs, the levers remained in a fixed position under auto pilot mode, so they were in the wrong place when the pilot resumed control. Further, the torque of the servo motors driving the levers was transmitted through a clutch, which made it very difficult for the pilot to override the automatic throttle without disconnecting it formally," says Product Manager Michel Giacomoni. "With our new system, the levers are driven by auto pilot and the pilot can override the AT through a force feedback system." Giacomoni notes that the force feedback comes from the corrective action of the AP computer, a modular avionic unit that gives the pilot feedback that the AT is engaged and that it is working correctly. Two new competitive aircraft will be the first to employ the system—the Gulfstream G200 (certified on July 2, 2004) and the Falcon 2000EX EASy, which is certified for delivery.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
The age of touch could soon come to an end. From smartphones and smartwatches, to home devices, to in-car infotainment systems, touch is no longer the primary user interface. Technology market leaders are driving a migration from touch to voice as a user interface.
Soft starter technology has become a way to mitigate startup stressors by moderating a motor’s voltage supply during the machine start-up phase, slowly ramping it up and effectively adjusting the machine’s load behavior to protect mechanical components.
A new report from the National Institute of Standards and Technology (NIST) makes a start on developing control schemes, process measurements, and modeling and simulation methods for powder bed fusion additive manufacturing.
If you’re developing a product with lots of sensors and no access to the power grid, then you’ll want to take note of a Design News Continuing Education Center class, “Designing Low Power Systems Using Battery and Energy Harvesting Energy Sources."
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.