Motion Control/Automation

Briefs : Motion Control
Technique Allows Mobile Robots to Navigate Autonomously

A technique was developed to quickly teach robots novel traversal behaviors with minimal human oversight. The technique allows mobile robot platforms to navigate autonomously in...

Briefs : Motion Control
Popcorn-Driven Robotic Actuators

When heated, popcorn can expand more than 10 times in size, change its viscosity by a factor of 10, and transition from regular to highly irregular granules with surprising force. These unique qualities can...

Briefs : Motion Control
Robotic Modules Modify Their Environment for Specific Tasks

Given the exact parameters of the task at hand, a robot can assemble a car door or pack a box faster and more efficiently than a human, but such purpose-built machines are not...

Briefs : Manufacturing & Prototyping
3D-Printed Active Materials for Robots

The Army uses robots that are structurally rigid, making them impractical when performing military operations in highly congested and contested urban environments where covert maneuvering is critical...

Briefs : Data Acquisition
An Artificial Nerve System Developed at Stanford Gives Prosthetic Devices and Robots a Sense of Touch

Stanford and Seoul National University researchers have developed an artificial sensory nerve system that can activate the twitch reflex in...

Briefs : Motion Control
Fast, Low-Voltage Actuator for Soft and Wearable Robotics

The unique capabilities of soft robots are to bend, deform, stretch, twist, or squeeze in all the ways that conventional rigid robots cannot. Today, it is easy to envision a world in...

Briefs : Sensors/Data Acquisition
Ultra-Thin Capacitive Sensor Has the Least Possible Resistance to Motion

A thin and flexible sensor was developed for sensing sounds, since it can move with the airflow made by even the softest noises. With the least possible resistance to motion, the sensor addresses issues with accelerometers, microphones, and many other similar sensors. The...

Briefs : Mechanical & Fluid Systems
Variable-Camber Compliant Wing

In the early years of manned flight, wing warping was used for lateral control of an aircraft. This technique consisted of a system of pulleys and cables used to twist the trailing edges of the wings in...

Briefs : Electronics & Computers
Using Direct Current with Inverter Technology in Resistance Welding

Resistance welding with direct current (DC) using inverter technology reduces costs by improving quality, reducing maintenance, and increasing productivity. Switching from...

Briefs : Robotics, Automation & Control
Autonomous Crop-Counting Robot

Today's crop breeders are trying to boost yields while preparing plants to withstand severe weather and changing climates. To succeed, they must locate the genes for high-yielding, hardy traits in crop...

Briefs : Imaging
Hydraulic-Based Spherical Robot

Current spherical robots rely upon rotating mechanical weights inside the sphere to change the center of gravity of the sphere, causing the robot to roll. The use of rotating mechanical weights is not optimal due to the reliance upon moving parts, which can present burdensome maintenance issues. It would be...

Briefs : Electronics & Computers
Integrated Inverter for Controlling Multiple Electric Machines

There are applications that require multiple electric machine drives, such as electric or hybrid electric vehicles, where there is a main traction motor and one or more accessory...

Briefs : Materials
Modified, 3D-Printable Alloy for Flexible Electronics and Soft Robots

Liquid metal printing is integral to the flexible electronics field. Additive manufacturing enables fast fabrication of intricate designs and circuitry. The field features...

Briefs : Motion Control
Positional Sensor Measures Rotational and Lateral Displacements

Positional sensors have applications where a very accurate measurement of position is needed over a limited range. One example of such an application is in manipulation of a...

Briefs : Mechanical & Fluid Systems
Active Response Gravity Offload System

NASA has used two systems to train astronauts for weightlessness. The first is the Reduced Gravity Simulator that suspended the astronaut at an angle of 80.5 so that only 1/6th of his or her weight was supported by the ground, while the rest was supported by a pulley system. The other system, designed...