Keyword: Screws

Technology Leaders: Motion Control
Ball screws are helping manufacturers meet the growing demand for fiber optic cables generated by 5G communications.
5 Ws: Materials
In the operating room, you can produce bioresorbable metal implants, such as screws for bone fractures.
Articles: Motion Control

Integrating lead screws with stepper motors is a simple and cost-effective method for getting precise linear motion. But achieving that precision requires...

Briefs: Manufacturing & Prototyping

Thin film gas sensors are small, lightweight, and relatively easy to operate; however, the testing of these thin film gas sensors is difficult in harsh...

Articles: Motion Control

Because ball screws are available in both inch and metric dimensions, designers sometimes begin the specification process by selecting a product family based on the unit of...

Articles: Imaging

Imaging lenses used in many industrial machine vision applications have special requirements beyond those of standard imaging lenses. The lenses used in factory automation, robotics, and industrial inspection...

Articles: Motion Control

Virtually all manufacturing processes incorporate some type of linear motion. A common mistake that designers make when sizing and selecting linear motion systems is to overlook critical application...

NASA Spinoff: Mechanical & Fluid Systems

Spinoff is NASA's annual publication featuring successfully commercialized NASA technology. This commercialization has contributed to the development of products and services in the fields...

Briefs: Software

Plasticity at small scales boosts concrete's utility as the world's most-used material by letting it constantly adjust to stress, decades or centuries after hardening. To find out why, Rice University researchers...

Articles: Motion Control
Positioning: Resolution and Accuracy

An application’s required positioning resolution dictates the choice of encoder resolution. A well-tuned system can maintain the position within one encoder state...

Briefs: Propulsion

Turbine film cooling flows typically are subject to jet detachment and reduced cooling effectiveness for high blowing rates. Current concepts to improve jet attachment involve impractical or overly complex hole designs...

Briefs: Mechanical & Fluid Systems

NASA’s Langley Research Center has developed a composite joint connector that is more structurally efficient than joints currently on the market. Traditionally, composite joints can...

Articles: Motion Control

For many years, stepper motors have been the most popular type of electric motor designed into instrumentation for a wide variety of reasons. Stepper motors have become increasingly...

Briefs: Electronics & Computers
Advanced, Ultra-Low-Loss, High-Frequency Package Module

As electronic circuits approach submillimeter wavelength frequencies (300 GHz) and higher, the traditional low-loss method of packaging electronic circuits in waveguide modules for guiding the signal requires more attention. The reasons are that circuits at higher frequencies have lower...

Briefs: Electronics & Computers
Avionics/Electronics Box Rail Mount System

There is limited space available to install numerous avionics boxes with the caveat that each box is a line replacement unit (LRU). Access to enable the removal of the boxes is limited, and it is critical that no tools and/or loose parts exist to ensure that no damage is done to aft-located components....

Articles: Manufacturing & Prototyping

The technologies NASA develops don’t just blast off into space. They also improve our lives here on Earth. Life-saving search-and-rescue tools, implantable medical devices, advances in commercial...

Application Briefs: Motion Control

Unlike industrial robots for manufacturing, service robots come with their own specification requirements aimed specifically at the end user, and the most discriminating user at...

Articles: Robotics, Automation & Control

Although there are a number of variations of drive technologies for motion applications, there are a few that are used for the majority of systems being built today. These most common drives do take a bit...

Application Briefs: Robotics, Automation & Control

Expansion valves are flow-restricting devices present in any refrigeration system. The valve needle remains open during steady state of operation. The size of the opening, or position of the...

Briefs: Test & Measurement
Device for Direct Measurement of the Diffusivity and Molecular Release Through Membranes and Filters

Concentration-driven molecular diffusion is a fundamental phenomenon essential for the transport of nutrients in cells, for oxygen exchange in the lungs, and mating of chemicals in industrial reactors and the food industry. Thus, diffusion plays...

Articles: Motion Control

Selecting the right actuator for use in any manufacturing operation involves a host of application-specific variables, including aspects such as the required stroke length, load capacity,...

Products: Lighting

DELO (Windach, Germany) now offers a new, high-intensity LED spot lamp with a wavelength of 400 nm. The DELOLUX 50 allows for fast, reliable, pinpoint curing of adhesive layers with thicknesses up to 10 mm, making it suitable...

Application Briefs: Motion Control

Today’s PCB plug-in connectors must accommodate many trends, including increasing miniaturization, rising levels of performance of electronic components, and growing complexity in machine...

Briefs: Mechanical & Fluid Systems

Most NASA missions require the use of a launch lock for securing moving components during the launch or securing the payload before release. A launch lock is used to prevent unwanted motion and secure the...

Briefs: Mechanical & Fluid Systems

This technique allows for rapid joining of reconfigurable structures. Currently, permanent structural joints are made in factory settings or in situ. However, reconfigurable structures require appropriate...

Articles: Lighting

Best quality LED A-lamp light bulbs provide a superior, energy-efficient alternative to incandescent bulbs, which have essentially been banned as of January 1, 2014. LED bulbs offer the same amount of light...

Briefs: Mechanical & Fluid Systems
Flexible Mechanical Conveyors for Regolith Extraction and Transport

A report describes flexible mechanical conveying systems for transporting fine cohesive regolith under microgravity and vacuum conditions. They are totally enclosed, virtually dust-free, and can include enough flexibility in the conveying path to enable an expanded range of...

Briefs: Materials
Microgravity Storage Vessels and Conveying-Line Feeders for Cohesive Regolith

Under microgravity, the usual methods of placing granular solids into, or extracting them from, containers or storage vessels will not function. Alternative methods are required to provide a motive force to move the material. New configurations for microgravity...

Products: Lighting

Wilbrecht LEDCO (St. Paul, MN), has introduced new bipolar LEDs. The pre-wired assembly of a red, green or yellow bipolar LED and a resistor will work directly off a 120 VAC or 240 VAC line as a LED power...

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