Motion Control

Pumping Efficiency Into Electric Motors

University of Adelaide (Australia) researchers are using new magnetic materials to develop revolutionary electrical motors and generators that promise significant energy savings. They have used the new motors to develop patented highly efficient water pump systems with potential widespread application.

Posted in: News, Motors & Drives


NASA Decelerators Slow Payloads Traveling at Supersonic Speed

What will it take to land heavier spacecraft on Mars? How will engineers slow large payloads traveling at supersonic speeds in a thin Martian atmosphere? The Low Density Supersonic Decelerator (LDSD) mission will seek to answer these questions.

Posted in: News, Aerospace, Motion Control, Motors & Drives, Power Transmission, Automation, Test & Measurement


New Strain Gauge Enables 'Soft Machines'

Purdue University researchers have developed a technique to embed a liquid-alloy pattern inside a rubber-like polymer to form a network of sensors. The approach may be used to produce "soft machines" made of elastic materials and liquid metals.Such an elastic technology could be used to create robots with sensory skin, as well as develop stretchable garments that interact with computers."What's exciting about the soft strain gauge is that it can detect very high strains and can deform with almost any material," said Rebecca Kramer, an assistant professor of mechanical engineering at Purdue University. "The skin around your joints undergoes about 50 percent strain when you bend a limb, so if you wanted to have sensory skin and wearable technology that tracks your movement you need to employ soft, stretchable materials that won't restrict your natural range of motion."SourceAlso: Learn about Thermal Properties of Microstrain Gauges.

Posted in: News, Materials, Metals, Plastics, Motion Control, Automation, Robotics, Sensors


High-Temperature Actuators for Aircraft Propulsion Systems

Future “more electric aircraft” (MEA) will require electric actuation systems for control surfaces and engine controls. Electric motors, drive electronics, and mechanisms are essential elements of aircraft actuation in MEAs that incorporate Electro-Magnetic Actuators (EMAs). High-temperature environments experienced in aircraft applications place demands on actuator components, materials, and insulation systems that dictate the use of new technologies and materials.

Posted in: Articles, Motion Control, Flight control actuators, Thermal management, Heat resistant materials, Electric motors


Probe Positioning System for Antenna Range

Three or more cables provide the desired positioning.In situ measurements of antenna patterns on rovers in a simulated terrain are difficult to make with conventional antenna range techniques. The desired pattern data covers a hemisphere above the antenna of interest, which is close to the ground. This is incompatible with traditional measurements that place the antenna under test on a movable support that tilts and rotates.

Posted in: Briefs, TSP, Motion Control, Antennas, Sensors and actuators, Spacecraft


Fluidic Actuators with No Moving Parts

Two new fluidic actuator designs were developed to control fluid flow in ways that will ultimately result in improved system performance and fuel efficiency in to improve the aerodynamic performance of a variety of vehicles. These flow control actuators, often referred to as fluidic oscillators or sweeping jet actuators, utilize the Coanda effect to generate spatially oscillating bursts (or jets). They can be embedded directly into a control surface (such as a wing or a turbine blade) to help reduce flow separation, increase lift, reduce drag, enhance mixing, or increase heat transfer. Recent studies show up to a 60% performance enhancement (such as increased lift or reduced drag) with fluidic actuators.

Posted in: Briefs, TSP, Motion Control, Sensors and actuators, Aerodynamics


Submersible Pressure Transducer for Tank Fluid Level Monitoring

Monitoring the level of liquid can be accomplished through the use of a pressure transducer. The density of the liquid and its height create pressure on the diaphragm of the pressure transducer to generate an accurate and cost-effective level measurement. Generally, pressure transducers can be used for level measurement from 10 inches of water column up to 10,000 PSI (700 bar).

Posted in: Application Briefs, Motion Control, Sensors and actuators


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