Special Coverage

Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing
Mechanoresponsive Healing Polymers
Variable Permeability Magnetometer Systems and Methods for Aerospace Applications
Evaluation Standard for Robotic Research
Small Robot Has Outstanding Vertical Agility
Smart Optical Material Characterization System and Method
Lightweight, Flexible Thermal Protection System for Fire Protection

Reducing Inaccuracies in Force/Haptic Feedback Systems

This novel algorithm automatically compensates for the errors introduced by physical factors, enabling the control system to Adjust the applied force accurately.Researchers at NASA's Armstrong Flight Research Center have developed a new technology to reduce inaccuracies in force/haptic feedback devices and systems. Used at NASA in aircraft simulations for force feedback pilot controls, these systems involve a servo motor applying precise force to a specific point based on very accurate measurements. However, because the force instrumentation often cannot be placed directly at the point of interest, a mechanical assembly is used, linking the force transducer to the target point. Unfortunately, this mechanical assembly introduces inaccuracies due to its own forces of gravity, friction, and inertia.

Posted in: Briefs, Automation, Computer simulation, Mathematical models, Human machine interface (HMI), Aircraft operations, Reliability


Exo-Brake Enables Safe Return for Small Spacecraft

The tension-based, flexible braking device resembles a cross parachute.NASA's Exo-Brake is a critical technology that can potentially help science payloads return to Earth from the International Space Station through the deployment of small spacecraft. The Exo-Brake is a tension-based, flexible braking device resembling a cross-parachute that deploys from the rear of a satellite to increase the drag. It is a deorbit device that replaces the more complicated rocket-based systems that would normally be employed during the deorbit phase of re-entry.

Posted in: Briefs, Automation, Product development, Drag, Entry, descent, and landing, Satellites, Spacecraft


New Products: April 2017 Motion Design

Variable Frequency DrivesThrough a new partnership, variable frequency drives (VFDs) from American Control Electronics (South Beloit, IL) will now be offered as a product add-on to Brother Gearmotors’ portfolio of sub-fractional AC gearmotors and reducers. OEMs have access to an optimized VFD for the Brother sub-fractional power range instead of purchasing an offthe- shelf VFD that may not be the best fit for the application. For example, a user buying a sub-fractional HP (1/100th to 1/6th HP) gear motor will not have to choose an off-the-shelf VFD rated for 1/4 HP. ACE’s microprocessor-based VFDs control AC motor speed and torque by varying input frequency and voltage.

Posted in: Products, Motion Control


DO-178C Best Practices For Engineers & Managers

Practice: We’ve all engaged in it: piano, math, golf, flying… Usually practice involves a modicum of coaching, self-help and repetition. In avionics development, however, there is little time for practice; instead, everything counts. And the result has little margin for error: Schedules, budgets and particularly safety are all on the line. How then can “practice” be reconciled with “avionics development”? The best answer is to understand the breadth of worldwide development and glean the best knowledge and solutions from the aviation ecosystem. Welcome to DO-178C Best Practices.

Posted in: White Papers, Aerospace, Aviation, Software


Magnetic Fields Enable New Soft Robots

Researchers from North Carolina State University have a found a new way to control robots. The team used magnetic fields to remotely manipulate microparticle chains embedded in soft robotic devices.

Posted in: News, Joining & Assembly, Drug Delivery, Automation, Robotics


Stray Light Analysis and Design of Optical Imaging Systems

Stray light is an age-old problem for optical systems. Fortunately, software tools available today for the optical designer enable quick and accurate characterization of stray light.

Posted in: On-Demand Webinars, Imaging


Challenges of 3D Printing Large Metal Aerospace Parts

Learn why Addaero has selected Arcam EBM for large, bulky parts for aerospace applications The applications for metal additive manufacturing are many, but the aerospace sector is one area that is leveraging metal AM for actual production parts. While both laser and EBM have advantages and disadvantages for a given application, Arcam EBM excels in printing larger parts for fatigue applications. Addaero works with leading aerospace companies to supply metal AM parts using both laser and EBM and has first-hand experience of how to best produce parts for a given application utilizing the best suitable technology.

Posted in: On-Demand Webinars, Manufacturing & Prototyping


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