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...

Briefs: Information Technology
Efficient Bit-to-Symbol Likelihood Mappings

This innovation is an efficient algorithm designed to perform bit-to-symbol and symbol-to-bit likelihood mappings that represent a significant portion of the complexity of an error-correction code decoder for high-order constellations. Recent implementation of the algorithm in hardware has yielded an...

NASA’s planetary missions have collected, and continue to collect, massive volumes of orbital imagery. The volume is such that it is difficult to manually review all of the...

Briefs: Information Technology
Capacity Maximizing Constellations

Some non-traditional signal constellations have been proposed for transmission of data over the Additive White Gaussian Noise (AWGN) channel using such channel-capacity-approaching codes as low-density...

Mark Polansky enjoyed a successful 14-year career as an Air Force fighter pilot before joining NASA as an aerospace engineer and research pilot in 1992. Selected as an astronaut candidate in...

Podcasts
Mark Polansky, Astronaut, Johnson Space Center

Mark Polansky enjoyed a successful 14-year career as an Air Force fighter pilot before joining NASA as an aerospace engineer and research pilot in 1992. Selected as an astronaut candidate in April 1996, he has since flown three space shuttle missions to the International Space Station,...

Products: Green Design & Manufacturing
Electrochemical Double Layer Capacitors

New large cell prismatic electrochemical double layer capacitors (EDLC) from Ioxus (Oneonta, NY) are for transportation and utility applications and are lower in cost for the overall system design. The...

Articles: Robotics, Automation & Control
Reducing Electromagnetic Interference in Motion Systems

EMI (Electromagnetic Interference) comes in different forms, frequencies, and levels. Electronic equipment has different categories for both emissions and susceptibility. Under normal...

The benefits of aquatic physical therapy and rehabilitation for those who have difficulty with weightbearing activities due to arthritis or injury, or those who are overweight,...

Briefs: Mechanical & Fluid Systems
Low-Friction, Low-Profile, High-Moment Two-Axis Joint

The two-axis joint is a mechanical device that provides two-degrees-of-freedom motion between connected components. A compact, moment-resistant, twoaxis joint is used to connect an electromechanical actuator to its driven structural members. Due to the requirements of the overall mechanism,...

Briefs: Robotics, Automation & Control
Miniature Multi-Axis Mechanism for Hand Controllers

A hand controller provides up to three axes of motion, and all required feel characteristics (stiffness and breakout torques) located inside a hollow handle within the grip of the hand. This is achieved using a miniature gimbal mechanism that allows for independent motion about one, two, or...

Briefs: Mechanical & Fluid Systems
Magnetostrictive Brake

A magnetostrictive brake has been designed as a more energy-efficient alternative to a magnetic fail-safe brake in a robot. (In the specific application, “fail-safe” signifies that the brake is normally engaged;...

Products: Robotics, Automation & Control
DC Motors

AMETEK Technical & Industrial Products (Harleysville, PA) offers the Pittman® Series 8540 30-mm brush-commutated DC motors that integrate bonded neodymium magnets and 7-slot straight armature to minimize cogging. The motors...

Products: Robotics, Automation & Control
Rotary Encoders

Heidenhain Corp. (Schaumburg, IL) offers the 1000 Series rotary encoders with IP 64 protection and absolute position-value formation in a 35-mm-diameter housing size. The encoders are designed as single-encoder measurement...

Products: Robotics, Automation & Control
MEMS Inclinometer

ASM Sensors (Elmhurst, IL) has introduced the PTAM20 Series POSITILT® MEMS inclinometer available in single- and dual-axis versions. It is available in a compact, flat housing and features a measurement range for the...

Products: Robotics, Automation & Control
DC Gearmotor

Midwest Motion Products (Watertown, MN) has released the Model MMP-D22-376H-24V GP52-195 BR-005 DC gearmotor with integral brake. Accepting any 24V DC source, including battery power, the encoder-compatible gearmotor/brake...

Products: Robotics, Automation & Control
Servomotor Brakes

Nexen (Vadnais Heights, MN) has introduced the Eclipse line of servomotor brakes designed to mount to servomotors up to 20 horsepower. The spring-engaged brakes are equipped with a split-hub, zero-backlash clamp collar for...

Products: Robotics, Automation & Control
Linear Stages

Aerotech (Pittsburgh, PA) has introduced the PRO Series of side-sealed, hard-cover, ball-screw-driven linear stages available in 68 standard models with travels from 50 to 1500 mm. A variety of travels, widths, speeds, and load...

Products: Robotics, Automation & Control
Mechanically Commutated Drive

Maxon Motor (Fall River, MA) offers the RE 50 mechanically commutated drive that features an ironless rotor for detent-free running, and a combination of a two-pole neodymium permanent magnet with winding...

Products: Robotics, Automation & Control
Servo Amplifier

Sanyo Denki America (Torrance, CA) offers the SANMOTION R high-speed EtherCAT interface AC servo amplifier that provides 100 Mbps communication. Multi-function software includes a motion simulation function that runs the same...

Products: Robotics, Automation & Control
Magnetic Encoder

Avago Technologies (San Jose, CA) has introduced the AEAT-601B compact, integrated, incremental magnetic encoder for speed detection, knob control, and rotary encoder applications. Housed in a protective plastic housing, it...

Products: Robotics, Automation & Control
Rotary Stage

The M660 high-speed, direct-driven piezomotor rotary stage from PI (Physik Instrumente) L.P. (Auburn, MA) is designed using PILine® piezomotor drive technology. The stage reaches top speeds of 720 degrees/sec and resolution to...

Application Briefs: Sensors/Data Acquisition
Monitoring Carbon Composite Structures With Optical Fiber Sensors

Fiber reinforced polymer composites are revolutionizing the design of large, high-performance structures in the aerospace, marine and power generation industries due to their...

Specially designed focusing of light beams has been proposed as a means of improving the performances of optical buffers based on cells containing hot atomic vapors (e.g., rubidium...

The new iBeam smart ultra-compact diode laser series from TOPTICA Photonics (Victor, NY) features digital and analog modulation; autopulse; a graphical user interface (GUI); high power levels...

Products: Photonics/Optics
Selective Wavelength Photodiodes

Opto Diode Corporation (Newbury Park, CA) has introduced the ODD-660W selective wavelength photodiodes. The device operates from 550-720nm, with peak response at 660nm, and features a spectral bandwidth of...

Products: Photonics/Optics
Optical Vector Analyzer

Luna Technologies (Roanoke, VA) has introduced the Optical Vector Analyzer platform, (OVA 5000), a tool for loss, dispersion, and polarization measurements of modern optical networking equipment. It delivers single-...

Products: Photonics/Optics
Microscope Focus Controller

Prior Scientific (Rockland, MA) has introduced a new focus-only control system for modern microscopes. The ES10ZE Focus Controller is suitable for applications involving extended focus or Z-stacking. The...

Products: Photonics/Optics
Camera Control Units

Toshiba Imaging Systems Division (Irvine, CA) has added two new camera control units (CCUs) designed to operate with the remote head, high-definition IK-HD1. The IK-HD1 model has an added DVI-I output on the rear panel,...

Webcasts

Upcoming Webinars: Materials

Protecting Power Electronics from EM and RF Interference

Upcoming Webinars: Automotive

Vehicle Electrification

Upcoming Webinars: Sensors/Data Acquisition

The Evolution of SOSA

Upcoming Webinars: Software

Next-Gen Vehicle Architectures and the Role of HPCs

Tech Talks: Medical

Testing Home Healthcare Medical Devices

Upcoming Webinars: Software

Accelerating Pre-Silicon Software Development with Next-Gen...

Videos