Special Coverage

Active Aircraft Pylon Noise Control System
Unmanned Aerial Systems Traffic Management
Method of Bonding Dissimilar Materials
Sonar Inspection Robot System
Applying the Dynamic Inertia Measurement Method to Full-Scale Aerospace Vehicles
Method and Apparatus for Measuring Surface Air Pressure
Fully Premixed, Low-Emission, High-Pressure, Multi-Fuel Burner
Self-Healing Wire Insulation
Home

Lunar Regolith Simulant Sample Collection Mechanism for Remote Operation in a Thermal Vacuum Chamber

The Sample Capture Mechanism (SCM) is a remotely actuated, spring-driven mechanism designed to remotely capture and seal a 15-mL sample in less than 1 second. It was used to capture a 10-g sample of simulated regolith dispensed from a drill in a thermal vacuum chamber with a minimum temperature of –100 ºC. The sample crucible temperature is controllable from ambient temperature to 70 ºC.

Posted in: Briefs, Machinery & Automation

Read More >>

Sonar Inspection Robot System

The system surveys interior volume, interrogates structure integrity, and displays real-time video and sonar.NASA’s Johnson Space Center innovators have designed a Robotic Inspection System that is capable of surveying deep sea structures such as oil platform storage cells/tanks and pipelines in order to determine the volume of material remaining inside, interrogate structure integrity, and display real-time video and sonar. This inspection device and method could significantly reduce the cost of inspecting, and in the future, provide sampling of the structure contents. The technology is an all-in-one inspection device that includes cameras, sonar, and motion-sensing instruments with hardware and software components. This NASA-developed technology is available for licensing.

Posted in: Briefs, Machinery & Automation

Read More >>

Robonaut 2: Industrial Opportunities

The robot handles factory tasks that are ergonomically difficult, fatiguing, or unsafe for humans. Robonaut 2 lifts a 20-lb. weight with one hand, demonstrating the robot’s strength and endurance. Researchers at the NASA Johnson Space Center (JSC), in collaboration with General Motors (GM) and Oceaneering, have designed a state-of-the-art, highly dexterous, humanoid robot: Robonaut 2 (R2). R2’s nearly 50 patented and patent-pending technologies have the potential to be game-changers in many applications, such as industrial environments. For example, in a traditional robotic assembly line, there are multiple specialized robots that are tooled for a small set of unique tasks. R2 provides an alternative way to implement automated assembly using extraordinary task flexibility, dexterity, and rapid interchangeability with human processes and tools. This can lower automation infrastructure costs and increase manufacturing flexibility. R2 can serve as an assistant or work independently. R2’s dexterity is a key feature in industrial environments, as the robot can handle factory work that is ergonomically difficult, fatiguing, or even unsafe.

Posted in: Briefs, Machinery & Automation

Read More >>

Vessel Sealing Device for Robotic Devices

Invasive surgical procedures are essential for addressing various medical conditions. When possible, minimally invasive procedures are preferred, but these technologies are often limited in scope and complexity. These limitations are due in part to mobility restrictions from the use of rigid tools in small openings, and limited visual feedback. The currently available robotic systems are restricted by the use of access ports, and have limited sensory and mobility capabilities.

Posted in: Briefs, Machinery & Automation

Read More >>

Residual Mode Filters

NASA has developed a unique control algorithm and synthesis method that uses a system’s output to modify control inputs to cause the system to track a reference model or a fixed value in the presence of unmodeled system dynamics, varying operating environments, and unpredictable disturbances. The unique feature of this algorithm is the ability to instantaneously adapt the system according to its output, rejecting persistent disturbances, and ultimately improving the system’s performance. This makes the controller ideally suited for applications where there are unknown modeling parameters or uncertain operating environments. Many aerospace systems must function in unknown or highly variable environments. This technology allows the system to achieve its objectives in these types of unpredictable environments. In comparison to current adaptive controller technologies, the addition of residual mode filters allows operation when flexible modes are present that could inhibit the controller. This is especially useful for systems where initial modeling is costly, or the fidelity of existing system models is low.

Posted in: Briefs, Machinery & Automation

Read More >>

Probabilistic Surface Characterization for Safe Landing Hazard Detection and Avoidance (HDA)

NASA’s Jet Propulsion Laboratory (JPL) has developed a probabilistic algorithm for hazard detection and avoidance (HDA) that robustly handles sensor noise. Conventional surface characterization methods use fixed hazard thresholds to determine hazardous landing locations; these thresholds are set lower than lander tolerances to compensate for sensor noise, but this leads to excessive false alarms and significantly reduces the number of safe locations. JPL’s probabilistic method seamlessly combines the distance to nearest hazard and the local roughness, and incorporates the presence of navigation errors to determine the probability that a given location is a safe landing site. This innovative algorithm enables onboard hazard detection and avoidance to increase the probability of safe landing and allow landings in more scientifically interesting but challenging sites.

Posted in: Briefs, Machinery & Automation

Read More >>

Robot for Controlled Deposition of Multilayer Thin Film Structures

During deposition of thin film layers using shadow masking techniques, thin film layer structure morphology changes with respect to the position of the thin film layer and the shadow of the mask. Morphology changes in the thin film result in refractive index and density changes that affect the performance of the thin film layer in and around the shadow mask.

Posted in: Briefs, Machinery & Automation

Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.