Keyword: Steel

Briefs: Mechanical & Fluid Systems

This drill (see Figure 1) is the primary sample acquisition element of the Mars Science Laboratory (MSL) that collects powdered samples from various types of rock (from clays to massive basalts) at depths up to...

Briefs: Mechanical & Fluid Systems
Robust Tensioned Kevlar Suspension Design

One common but challenging problem in cryogenic engineering is to produce a mount that has excellent thermal isolation but is also rigid. Such mounts can be achieved by suspending the load from a network of fibers or strings held in tension. Kevlar fibers are often used for this purpose owing to their...

Briefs: Manufacturing & Prototyping
Techniques for Solution-Assisted Optical Contacting

A document discusses a “solution-assisted contacting” technique for optical contacting. An optic of surface flatness Lambda/20 was successfully contacted with one of “moderate” surface quality, or Lambda/4. Optics used were both ultra-low expansion (ULE) glass (Lambda/4 and Lambda/20)...

Application Briefs: Lighting
Stratasys, Inc. Eden Prairie, MN

In April 2009, Tommy Voeten, President of the New York City-based 1212-Studio, was asked to help illuminate the fabric roof of the stages for rock...

Briefs: Manufacturing & Prototyping

The GeoLab glovebox was designed to enable the preliminary examination, by astronauts, of geological samples collected from the surface of another planetary body. The collected information would then...

Products: Lighting Technology

New weather-resistant panel-mount assemblies from Bivar (Irving, CA) offer a variety of options to accommodate a range of challenging environments. They are available in steel, brass, and anodized aluminum packages;...

Briefs: Physical Sciences
Distributed Capacitive Sensor for Sample Mass Measurement

Previous robotic sample return missions lacked in situ sample verification/quantity measurement instruments. Therefore, the outcome of the mission remained unclear until spacecraft return. In situ sample verification systems such as this Distributed Capacitive (DisC) sensor would enable...

Briefs: Materials
Molecular Adsorber Coating

A document discusses a zeolite-based sprayable molecular adsorber coating that has been developed to alleviate the size and weight issues of current ceramic puck-based technology, while providing a configuration that more projects can use to protect against degradation from outgassed materials within a spacecraft,...

Articles: Materials
New NASA Material Redefines “Dark”

NASA engineers have produced a material that absorbs, on average, more than 99 percent of the ultraviolet, visible, infrared, and far-infrared light that hits it -- a development that promises to open new frontiers in space technology.

Engineers at NASA's Goddard Space Flight Center in Greenbelt, MD,...

Briefs: Electronics & Computers

Wheel-based sensors for detection of ice on roads and approximate measurement of the thickness of the ice are under development. These sensors could be used to alert drivers to hazardous local icing...

Application Briefs: Sensors/Data Acquisition
Genesis HighSpeed data acquisition system and Perception software
Marlboro, MA

NASA Kennedy Space Center, based in Cape Canaveral, FL,...

Briefs: Physical Sciences

To date, the method for astronauts to drink liquids in microgravity or weightless environments is to suck the liquid from a bag or pouch through a straw. A new beverage cup works in...

Articles: Photonics/Optics

In the world of precision motion control there is a continuous pursuit of higher performance, whether it’s resolution, speed, stability, accuracy or step size. Even if a specified device appears...

Briefs: Mechanical & Fluid Systems
Dampers for Stationary Labyrinth Seals

Vibration dampers have been invented that are incorporated as components within the stationary labyrinth seal assembly. These dampers are intended to supplement other vibration-suppressing features of labyrinth seals in order to reduce the incidence of high-cycle-fatigue failures, which have been known to...

Briefs: Physical Sciences
Helium-Cooled Black Shroud for Subscale Cryogenic Testing

This shroud provides a deep-space simulating environment for testing scaled-down models of passively cooling systems for spaceflight optics and instruments. It is used inside a liquid-nitrogen-cooled vacuum chamber, and it is cooled by liquid helium to 5 K. It has an inside geometry of...

Briefs: Green Design & Manufacturing

A preliminary study has shown that the use of a high-strength composite fiber cloth material may greatly reduce fabrication and deployment costs of a subsea offshore pipeline. Above-water...

Briefs: Manufacturing & Prototyping
Methods of Antimicrobial Coating of Diverse Materials

Methods of coating diverse substrate materials with antimicrobial agents have been developed. Originally intended to reduce health risks to astronauts posed by pathogenic microorganisms that can grow on surfaces in spacecraft, these methods could also be used on Earth — for example, to...

Briefs: Mechanical & Fluid Systems
Plasma Igniter for Reliable Ignition of Combustion in Rocket Engines

A plasma igniter has been developed for initiating combustion in liquid-propellant rocket engines. The device propels a hot, dense plasma jet, consisting of elemental fluorine and fluorine compounds, into the combustion chamber to ignite the cold propellant mixture. The igniter...

Briefs: Physical Sciences
Null Lens Assembly for X-Ray Mirror Segments

A document discusses a null lens assembly that allows laser interferometry of 60° slumped glass mirror segments used in x-ray mirrors. The assembly consists of four lenses in precise alignment to each other, with incorporated piezoelectric nanometer stepping actuators to position the lenses in six...

Briefs: Mechanical & Fluid Systems

One of the major technical problems deep-space optical communication (DSOC) systems need to solve is the isolation of the optical terminal from vibrations produced by the spacecraft...

Application Briefs: Lighting
Ocean LED, Nuneaton, UK
Proto Labs, Maple Plain, MN

Richard Sant, Chief Designer at OceanLED, sought a fast and flexible way to make low-cost, high-quality components for the firm’s latest LED...

Briefs: Manufacturing & Prototyping
Quick-Change Ceramic Flame Holder for High-Output Torches

Researchers at NASA’s Langley Research Center have developed a new ceramic design flame holder with a service temperature of 4,000 °F (2,204 °C). The combination of high strength and high temperature capability, as well as a twist-lock mounting method to the steel burner, sets this...

Briefs: Materials
Magnesium Diboride Current Leads

A recently discovered superconductor, magnesium diboride (MgB2), can be used to fabricate conducting leads used in cryogenic applications. Discovered to be superconducting in 2001, MgB2 has the advantage of remaining superconducting at higher temperatures than the previously used material,...

Briefs: Mechanical & Fluid Systems
Compact, Lightweight Servo-Controllable Brakes

Compact, lightweight servo-controllable brakes capable of high torques are being developed for incorporation into robot joints. A brake of this type is based partly on the capstan effect of tension elements, which is described by the well known equation

Briefs: Materials

A method was developed of synthesizing agglutinates as components of simulated Lunar regolith. The method is needed for further development of Lunar-exploration capabilities...

Application Briefs: Sensors/Data Acquisition
Genesis HighSpeed data acquisition products
Marlborough, MA

In order to protect the space shuttle from lightning strikes...

Briefs: Mechanical & Fluid Systems
Foil Gas Thrust Bearings for High-Speed Turbomachinery

A methodology has been developed for the design and construction of simple foil thrust bearings intended for parametric performance testing and low marginal costs, supporting continued development of oil-free turbomachinery. A bearing backing plate is first machined and surface-ground to...

Articles: Energy

Keeping pace with emerging solid-state lighting (SSL) applications can be difficult for design engineers, not only from an end-product standpoint, but at the component level as well. Design...

Briefs: Mechanical & Fluid Systems

Long tool bits are undergoing development that can be stowed compactly until used as rock- or ground-penetrating probes actuated by ultrasonic/sonic mechanisms. These bits are...

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