Keyword: Electric motors

Briefs: Test & Measurement

A key goal of NASA’s aeronautics research is to help the aircraft industry transition to low-carbon propulsion. Many potential power architectures for electric...

Articles: Robotics, Automation & 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...

Articles: Aerospace

The SAE 2016 World Congress, presented by SAE International and taking place April 12-14 in Detroit, will gather experts, management teams, engineers, and executives from the automotive...

Application Briefs: Robotics, Automation & Control

Deep-sea remotely operated vehicles (ROVs) present motion control design engineers with some difficult challenges. Applications may include ROV propulsion, position thrusters, dive vanes, rudders,...

Application Briefs: Test & Measurement

Torque is among the most important of all the measured quantities in applications ranging from characterizing high-power gas turbines, to determining the level of force...

Articles: Sensors/Data Acquisition
GRANT MALOY SMITH
President and CEO
Dewetron, Inc.
Wakefield, RI
www.dewamerica.com

In 40 years, data acquisition products have evolved from paper-based chart...

Articles: Test & Measurement

There are a variety of reasons we need to know the temperature of an object or a process — to prevent product damage, ensure sterilization, determine biological health, ensure...

Application Briefs: Motion Control

Hydraulic and pneumatic systems have traditionally been the market leader in providing power in the aerospace and defense industry because of their low cost and...

Articles: Test & Measurement

Do you see product testing and checking as a necessary evil? Then take some time to change your mind. In the long process from vision to reality of a product, intelligent and efficient testing is indispensable. The...

Briefs: Motion Control
Experimental Testbed for 1-MW Turboelectric Distributed Propulsion Aircraft

Researchers at NASA’s Armstrong Flight Research Center are developing a concept aircraft for testing turbo-electric distributed propulsion (TeDP) experiments. TeDP generally involves providing thrust to an aircraft via wing-mounted ducted electric fans, which consist...

Briefs: Manufacturing & Prototyping
Portable Friction Stir Welding Machine

A preliminary design of a portable friction stir welding (FSW) machine for use in space has been developed. The in-space FSW machine takes the form of a handheld router tool that is historically used in woodworking applications. With the design of the in-space FSW machine, the FSW tool is directly connected...

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...

Articles: Motion Control

Linear motion systems are found inside countless machines including precision laser cutting systems, laboratory automation equipment, semiconductor fabrication machines, CNC machines,...

Articles: Software

The increasingly global, fast-paced, and connected nature of the marketplace is placing new demands on product development teams. As it evolves to meet emerging user needs, engineering simulation...

Briefs: Electronics & Computers
Current-Controlled Output Driver for Directly Coupled Loads

Driving loads such as electric motors, relay coils, and solenoids requires a relatively large initial pull-in or start-up current from a driver in order to initiate operation of the load. To maintain continuous operation, the hold or running operating current required for a load may be...

Briefs: Robotics, Automation & Control

By suppressing or controlling harmonic currents and voltages of the motor to overcome torque ripple, this system improves the efficiency and torque performance of an...

Articles: Robotics, Automation & Control

Designers of medical pumps often have to deal with the challenge of implementing precise, yet low-cost motion control. For most medical pumps, there are three basic technology...

Articles: Energy

One initiative at Glenn Research Center, the Hybrid Power Management (HPM) program, focused on joining new and mature technologies for optimal power systems applications in space and on Earth, with...

Application Briefs: Robotics, Automation & Control

Manufacturers often need to test their products to verify that they meet customer specifications, and provide the data that verifies specification compliance. This is particularly true...

Briefs: Mechanical & Fluid Systems
Implementation of a Non-Metallic Barrier in an Electric Motor

Electric motors that run in pure oxygen must be sealed, or “canned,” for safety reasons to prevent the oxygen from entering into the electrical portion of the motor. The current canning process involves designing a metallic barrier around the rotor to provide the separation. This...

Briefs: Mechanical & Fluid Systems
MicroProbe Small Unmanned Aerial System

The MicroProbe unmanned aerial system (UAS) concept incorporates twin electric motors mounted on the vehicle wing, thus enabling an aerodynamically and environmentally clean nose area for atmospheric sensors. A payload bay is also incorporated in the fuselage to accommodate remote sensing instruments.

Articles: Transportation
Dynamic Aero-Shroud Oscillating Jet Rebecca Farr, Endwell Daso, Victor Pritchett, and Dr. Ten-See Wang, NASA Marshall Space Flight Center, Huntsville, AL

Applying supersonic counter-flowing cold gas jets...

Briefs: Mechanical & Fluid Systems
Two-Stage Winch for Kites and Tethered Balloons or Blimps

A winch system provides a method for launch and recovery capabilities for kites and tethered blimps or balloons. Low power consumption is a key objective, as well as low weight for portability. This is accomplished by decoupling the tether-line storage and winding/ unwinding functions,...

Articles: Robotics, Automation & Control

Hydraulic steering systems have long dominated the industrial utility vehicle market because of their familiarity both to vehicle designers...

Articles: Manufacturing & Prototyping

The Create the Future Design Contest was launched in 2002 by the publishers of NASA Tech Briefs to help stimulate and reward engineering innovation. The competition has attracted...

Articles: Robotics, Automation & Control

Environmental friendliness, economy, and individuality are the fundamental ideas associated with the topic of eMobility (electromobility). The increasing scarcity of resources and constantly rising...

Articles: Medical

(Winner of an HP Workstation)

IDEA Enhanced Pulse Oximetry
Articles: Energy

The Energy Independence and Security Act of 2007 (EISA), which restates the definition of General Purpose Electric Motors, goes into effect...

Briefs: Manufacturing & Prototyping

Miniature scroll pumps have been proposed as roughing pumps (low-vacuum pumps) for miniature scientific instruments (e.g., portable mass spectrometers and gas analyzers) that depend on vacuum. The...

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