Tech Briefs

Motion Control/​Automation

Access our comprehensive library of technical briefs on motion control and automation, from engineering experts at NASA and major government, university, and commercial laboratories.

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Briefs: Sensors/Data Acquisition
A technique was developed to prevent cross-coupling in systems where two or more linear electromechanical actuators (EMAs) are rigidly connected, and are in danger of becoming...
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Briefs: Robotics, Automation & Control
Autonomous Robotic Self-Righting
Robots are increasingly being used for various applications including search and rescue operations and combat situations. Unfortunately, during the performance of maneuvers, a robot may fall or tip over, preventing it from moving normally. Controlling the robot to successfully right itself can be a difficult and...
Briefs: Robotics, Automation & Control
System and Method for Managing Autonomous Entities Through Apoptosis
This NASA innovation is a biologically inspired system management method designed to make sensor webs as well as other autonomous and autonomic systems more self-directing and self-managing. Based on the mechanisms of cell apoptosis, this method ensures safe and correct operation...
Briefs: Aerospace
Axial Magnetic Flux Airflow Integrated Compressor-Generator-Motor Turbojet Design
Innovators at the NASA Armstrong Flight Research Center have developed a compressor-generator-motor turbojet design concept that integrates the generator with the aerodynamic blade structures of the compression section of turbomachinery. This reduces weight and volume...
Briefs: Sensors/Data Acquisition
Highly capable small Unmanned Aerial Vehicles (UAVs) provide substantial business opportunity, especially if allowed to operate in the suburban market. Reliability issues force the use of a safety pilot for each vehicle in...
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Briefs: Mechanical & Fluid Systems
The Orangutank™ is a remote-controlled, tethered robotic platform for traveling from one pipe to another using a network of vertical pipes for support. It combines specialized robotic grippers to provide...
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Briefs: Robotics, Automation & Control
Anew grasp system with robotic hands works without previously knowing the characteristics of objects, learning by trial and error. The robot features two hands based on human hands in terms of...
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Briefs: Robotics, Automation & Control
The robotic gripper was developed at NASA Goddard Space Flight Center as part of a robotic satellite servicing mission. The gripping device can be used to autonomously or remotely grasp and...
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Briefs: Sensors/Data Acquisition
Method and Associated Apparatus for Capturing, Servicing, and De-Orbiting Earth Satellites Using Robotics
Engineers at Goddard Space Flight Center have overcome limitations plaguing the satellite sector since its inception through the development of a robotic system allowing for the autonomous capture and servicing of in-orbit satellites. By...
Briefs: Mechanical & Fluid Systems
A small robot with the ability to hoist large loads could have countless applications, not only as a small, inexpensive, disposable, mobile sensor in the realms of search and rescue,...
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Briefs: Motion Control
Thruster-Based Attitude and Translation Control with Minimum Pulse-Count Disturbance Rejection
Thruster-based control typically requires a substantial engineering effort in order to mitigate an important issue: the control system tends to use many thruster pulses to accomplish what a single thruster pulse could do instead. This fundamental problem...
Briefs: Photonics/Optics
NASA is preparing for the next generation of CubeSats that are propelled and will make directional maneuvers. The new gimbal mount provides a seat for the motor, and controls the position of the thrusters...
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Briefs: Motion Control
Servo control systems require accurate control of motion parameters such as acceleration, velocity, and position. This requires a controller that can apply current (torque) to...
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Briefs: Mechanical & Fluid Systems
Soft robots are made from soft materials that react to applied voltage with a wide range of motions. Such soft robots contain tremendous potential for future applications, as they adapt to dynamic environments...
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Briefs: Motion Control
Using 3D printers, researchers have created a metamaterial from cubic building blocks that responds to compression forces by a rotation. Usually, this can only be...
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Briefs: Motion Control
Linear actuator manufacturers have a history of strong mechanical design expertise, which is the core of any linear actuation; however, giving motion to modern powered equipment goes beyond a...
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Briefs: Robotics, Automation & Control
Engineers have fabricated transparent, gel-based robots that move when water is pumped in and out of them. They are made entirely of hydrogel — a tough, rubbery, nearly...
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Briefs: Robotics, Automation & Control
System Enables Robots to Understand Contextual Commands
Today’s robots can accomplish many repetitive tasks, but their inability to understand the nuances of human language makes them mostly useless for more complicated requests. For example, if a specific tool is placed in a toolbox and a robot is asked to “pick it up,” it would be...
Briefs: Robotics, Automation & Control
A fundamental advance in controlling soft robots involves using magnetic fields to remotely manipulate microparticle chains embedded in soft robotic devices. Several devices have been developed that...
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Briefs: Robotics, Automation & Control
Evolving and Controlling Behaviors in a Computation-Free Robot Swarm
Flocks of birds, schools of fish, and colonies of ants exhibit a remarkable robustness and resilience, despite the limited capabilities of each individual. Recently, research into bio-inspired swarm robotics has been gaining popularity due to the low-cost, robust, redundant, and...
Briefs: Robotics, Automation & Control
To date, it has been difficult or impossible for most robotic and prosthetic hands to accurately sense the vibrations and shear forces that occur, for example, when a finger is sliding along a tabletop, or...
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Briefs: Robotics, Automation & Control
A software system was developed that helps robots more effectively act on spoken instructions — no matter how abstract or specific those instructions may be — from people who by...
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Briefs: Motion Control
Researchers at the Ecole Polytechnique Federale de Lausanne (EPFL) have created the first functional robot powered entirely by vacuum. It is made of soft building blocks that move by having air sucked out...
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Briefs: Motion Control
An engineering team at the University of California San Diego has designed and built a gripper that can pick up and manipulate objects without needing to see them and without being...
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Briefs: Motion Control
Scientists at Disney Research have developed a modular, reconfigurable legged robot named Snapbot that can move forward, interact with its environment, and perform other tasks based on a number of...
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Briefs: Motion Control
Origami has once again inspired engineers at NASA’s Jet Propulsion Laboratory (JPL). Besides aesthetic beauty, the Japanese tradition of paper-folding addresses a persistent problem faced...
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Briefs: Motion Control
The James Webb Space Telescope will be the most powerful space telescope ever built. With a 21-foot diameter, the telescope’s primary mirror is six times larger than the one used by the...
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Briefs: Robotics, Automation & Control
Actuators are a critical driver of all the mechanisms used in space, and improvements of their operation mechanism enhance mission...
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Briefs: Robotics, Automation & Control
An industrial-class excavator was developed for use on the Moon and perhaps on Mars. The model mobility platform uses Ackerman Steering with active drives on all six wheels,...
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