Keyword: Electric motors

Application Briefs: Test & Measurement
Learn how to outfit your equipment with sensors.
Articles: Motion Control
Learn the differences between bipolar and unipolar motors, their driving methods, and advantages and limitations.
Application Briefs: Electronics & Computers
An OEM must think about how to build a machine that will work on any kind of power system.
Briefs: Manufacturing & Prototyping
Servo motion control delivers powerful, fast, and precise movement onboard robots and for associated equipment.
Briefs: Motion Control
New high bus voltage stepper motor systems avoid the complexity and expense of servo motors.
Application Briefs: Photonics/Optics
There is a growing demand for direct-drive motors.
Application Briefs: Electronics & Computers
With new vehicles, automotive manufacturers will need to closely monitor the current flowing to the motor.
Briefs: Motion Control
Onboard cameras can be used to keep damaged quadcopters in the air and flying stably, even without GPS.
Briefs: Automotive
This partially superconducting machine can be used as a motor or generator.
Articles: Motion Control
Briefs: Materials
The material can be scaled for use in ultra-efficient, power-dense, electric vehicle traction motors.
Briefs: Mechanical & Fluid Systems
Researchers have developed a self-contained wheel unit that combines a wheel and an electric motor.
Briefs: Manufacturing & Prototyping
The technology can be used in commercial motors, robotic systems, and hybrid and electric vehicles.
Articles: Mechanical & Fluid Systems

Stepper motors and stepper-based linear actuators are often selected for open-loop motion control devices and equipment. These can be found in a wide range of products and...

Briefs: Electronics & Computers
Double-Fed Induction Linear Alternator

This technology was developed to address the limitations of traditional, single-fed linear alternators that require permanent magnets, adhesive bonding organics, and heavy iron laminations for flux control. They experience eddy-current losses and require electromagnetic interference protection. Furthermore,...

Briefs: Mechanical & Fluid Systems
Improved Directed Flux Motor

Electromagnetic motors typically convert electrical energy into rotational mechanical energy and are employed across a wide array of applications. While motors represent relatively mature technology, practitioners continue to seek ways to enhance motor operation including a decrease in cost, drop in size/weight,...

Articles: Transportation

Smarter, better, faster, less expensive — those words are the mantra of today’s global economy. As organizations seek to streamline operations and do more with less, they...

Briefs: Electronics & Computers

Making electric cars lighter also involves reducing the weight of the motor. One way to do that is by constructing it from fiber-reinforced polymer materials. A new cooling concept...

Briefs: Motion Control
Precision Low-Speed Motor Controller

Innovators at NASA Johnson Space Center have developed a method for controlling precise motion of a brushless DC (BLDC) motor using relatively inexpensive components. Precision motors are usually quite expensive and inefficient when operating at slow speeds. Current motors are only capable of operating at...

INSIDER: Motion Control

Oak Ridge National Laboratory scientists have created open source software that scales up analysis of motor designs to run on the fastest computers available.

Articles: Mechanical & Fluid Systems

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

Articles: Photonics/Optics

Step motors are widely used in automation due to their high resolution, precision positioning, minimal control electronics, and low cost. As an open loop system, traditional...

Briefs: Robotics, Automation & Control

An eel-like robot was developed that can swim silently in salt water without an electric motor. Instead, the robot uses artificial muscles filled with water to propel itself. The...

Briefs: Motion Control

NASA Langley Research Center has developed Greased Lightning, the first unmanned aerial vehicle (UAV) that combines vertical take-off and landing (VTOL) capability with...

Briefs: Propulsion

NASA Langley Research Center has developed a novel aircraft design that can carry 150+ passengers over a range of 3,500 nautical miles. Key features include a turboelectric propulsion system, twin...

Briefs: Electronics & Computers

Servo control systems require accurate control of motion parameters such as acceleration, velocity, and position. This requires a controller that can apply current (torque) to...

Articles: Motion Control

Every system design presents a unique set of specifications regarding cost, space, time-to-market, and other factors. Designers must therefore make tradeoffs to meet these requirements, such as opting for a higher...

Briefs: Motion Control

Currently available air motors have many advantages over electric motors. They are more compact, lighter-weight, instantly reversible without sparking, create no heat buildup, are undamaged by...

Briefs: Propulsion
Wireless Ultrasonic Inspection Propulsion System

During inspection of pressure vessels and other large structures, an industry-accepted fixture is used to hold the search unit a predetermined distance from the area of interest under inspection. This fixture is then moved manually around the area of interest so that data can be collected and...