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Intro to reed switches, magnets, magnetic fields

This brief introductory video on the DigiKey site offers tips for engineers designing with reed switches. Dr. Stephen Day, Ph.D. from Coto Technology gives a solid overview on reed switches -- complete with real-world application examples -- and a detailed explanation of how they react to magnetic fields.
View the video.

Bi-color LEDs to light up your designs

Created with engineers and OEMs in mind, SpectraBright Series SMD RGB and Bi-Color LEDs from Visual Communi-cations Company (VCC) deliver efficiency, design flexibility, and control for devices in a range of industries, including mil-aero, automated guided vehicles, EV charging stations, industrial, telecom, IoT/smart home, and medical. These 50,000-hr bi-color and RGB options save money and space on the HMI, communicating two or three operating modes in a single component.
Learn more.

All about slip rings: How they work and their uses

Rotary Systems has put together a really nice basic primer on slip rings -- electrical collectors that carry a current from a stationary wire into a rotating device. Common uses are for power, proximity switches, strain gauges, video, and Ethernet signal transmission. This introduction also covers how to specify, assembly types, and interface requirements. Rotary Systems also manufactures rotary unions for fluid applications.
Read the overview.

Seifert thermoelectric coolers from AutomationDirect

Automation-Direct has added new high-quality and efficient stainless steel Seifert 340 BTU/H thermoelectric coolers with 120-V and 230-V power options. Thermoelectric coolers from Seifert use the Peltier Effect to create a temperature difference between the internal and ambient heat sinks, making internal air cooler while dissipating heat into the external environment. Fans assist the convective heat transfer from the heat sinks, which are optimized for maximum flow.
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EMI shielding honeycomb air vent panel design

Learn from the engineering experts at Parker how honeycomb air vent panels are used to help cool electronics with airflow while maintaining electromagnetic interference (EMI) shielding. Topics include: design features, cell size and thickness, platings and coatings, and a stacked design called OMNI CELL construction. These vents can be incorporated into enclosures where EMI radiation and susceptibility is a concern or where heat dissipation is necessary. Lots of good info.
Read the Parker blog.

What is 3D-MID? Molded parts with integrated electronics from HARTING

3D-MID (three-dimensional mechatronic integrated devices) technology combines electronic and mechanical functionalities into a single, 3D component. It replaces the traditional printed circuit board and opens up many new opportunities. It takes injection-molded parts and uses laser-direct structuring to etch areas of conductor structures, which are filled with a copper plating process to create very precise electronic circuits. HARTING, the technology's developer, says it's "Like a PCB, but 3D." Tons of possibilities.
View the video.

Loss-free conversion of 3D/CAD data

CT CoreTech-nologie has further developed its state-of-the-art CAD converter 3D_Evolution and is now introducing native interfaces for reading Solidedge and writing Nx and Solidworks files. It supports a wide range of formats such as Catia, Nx, Creo, Solidworks, Solidedge, Inventor, Step, and Jt, facilitating smooth interoperability between different systems and collaboration for engineers and designers in development environments with different CAD systems.
Learn more.

Top 5 reasons for solder joint failure

Solder joint reliability is often a pain point in the design of an electronic system. According to Tyler Ferris at ANSYS, a wide variety of factors affect joint reliability, and any one of them can drastically reduce joint lifetime. Properly identifying and mitigating potential causes during the design and manufacturing process can prevent costly and difficult-to-solve problems later in a product lifecycle.
Read this informative ANSYS blog.

Advanced overtemp detection for EV battery packs

Littelfuse has introduced TTape, a ground-breaking over-temperature detection platform designed to transform the management of Li-ion battery systems. TTape helps vehicle systems monitor and manage premature cell aging effectively while reducing the risks associated with thermal runaway incidents. This solution is ideally suited for a wide range of applications, including automotive EV/HEVs, commercial vehicles, and energy storage systems.
Learn more.

Benchtop ionizer for hands-free static elimination

EXAIR's Varistat Benchtop Ionizer is the latest solution for neutralizing static on charged surfaces in industrial settings. Using ionizing technology, the Varistat provides a hands-free solution that requires no compressed air. Easily mounted on benchtops or machines, it is manually adjustable and perfect for processes needing comprehensive coverage such as part assembly, web cleaning, printing, and more.
Learn more.

LED light bars from AutomationDirect

Automation-Direct adds CCEA TRACK-ALPHA-PRO series LED light bars to expand their offering of industrial LED fixtures. Their rugged industrial-grade anodized aluminum construction makes TRACKALPHA-PRO ideal for use with medium to large-size industrial machine tools and for use in wet environments. These 120 VAC-rated, high-power LED lights provide intense, uniform lighting, with up to a 4,600-lumen output (100 lumens per watt). They come with a standard bracket mount that allows for angle adjustments. Optional TACLIP mounts (sold separately) provide for extra sturdy, vibration-resistant installations.
Learn more.

World's first metalens fisheye camera

2Pi Optics has begun commercial-ization of the first fisheye camera based on the company's proprietary metalens technology -- a breakthrough for electronics design engineers and product managers striving to miniaturize the tiny digital cameras used in advanced driver-assistance systems (ADAS), AR/VR, UAVs, robotics, and other industrial applications. This camera can operate at different wavelengths -- from visible, to near IR, to longer IR -- and is claimed to "outperform conventional refractive, wide-FOV optics in all areas: size, weight, performance, and cost."
Learn more.

Orbex offers two fiber optic rotary joint solutions

Orbex Group announces its 700 Series of fiber optic rotary joint (FORJ) assemblies, supporting either single or multi-mode operation ideal for high-speed digital transmission over long distances. Wavelengths available are 1,310 or 1,550 nm. Applications include marine cable reels, wind turbines, robotics, and high-def video transmission. Both options feature an outer diameter of 7 mm for installation in tight spaces. Construction includes a stainless steel housing.
Learn more.

Mini tunnel magneto-resistance effect sensors

Littelfuse has released its highly anticipated 54100 and 54140 mini Tunnel Magneto-Resistance (TMR) effect sensors, offering unmatched sensitivity and power efficiency. The key differentiator is their remarkable sensitivity and 100x improvement in power efficiency compared to Hall Effect sensors. They are well suited for applications in position and limit sensing, RPM measurement, brushless DC motor commutation, and more in various markets including appliances, home and building automation, and the industrial sectors.
Learn more.

Panasonic solar and EV components available from Newark

Newark has added Panasonic Industry's solar inverters and EV charging system components to their power portfolio. These best-in-class products help designers meet the growing global demand for sustainable and renewable energy mobility systems. Offerings include film capacitors, power inductors, anti-surge thick film chip resistors, graphite thermal interface materials, power relays, capacitors, and wireless modules.
Learn more.

Sensors aim to save millions:
Army developing new aircraft maintenance technologies at research lab

Researchers at the Army's corporate laboratory are testing new technologies created for the Federal Aviation Administration that could give commercial and military maintenance programs earlier warning of problems.

A U.S. Army Soldier prepares to board a UH-60 Black Hawk helicopter landing near Tafaria, Iraq, in 2006. Historically, military maintenance programs have relied on time-scheduled maintenance. The U.S. Army Research Laboratory is looking into new aircraft maintenance technologies that could get safer aircraft back in the air faster. [Image: Mass Communication Specialist 1st Class Jackey Bratt, U.S. Navy.]

 

 

 

 

Army Research Laboratory (ARL) officials say that condition-based maintenance, known as CBM, will get safer aircraft back in the air faster because it relies on repairing and replacing faulty parts in aircraft when they need to be fixed or replaced. Traditional military maintenance programs rely on time-scheduled maintenance.

Dy Le, chief of the mechanics division within ARL's Vehicle Technology Directorate, said ARL's work in this area supports the FAA on developing and validating CBM methodologies, and once matured, those methodologies would help the FAA certify the use of the Health and Usage Monitoring System, or HUMS, as part of commercial aircraft maintenance programs.

ARL's customized technologies are being incorporated into the HUMS, which serves as a central repository for aircraft system information, he said.

ARL's work in CBM is highlighted in a special two-part series as part of its broadcast program, "Inside the Lab."

The show, airing on ARL's website and on its YouTube Channel, focuses on a number of ARL-developed sensor technologies that are embedded in the HUMS. These sensors, many developed with the Communications-Electronics Research, Development, and Engineering Center (CERDEC) and the Federal Aviation Administration, monitor and signal system faults.

Le said sensors placed on critical areas of the aircraft, like the tail rotor output shaft, measure performance. The information from the sensors is fed into the HUMS system, where maintenance crews can quickly review data and identify abnormal readings like vibrations much faster than done in the past.

He said CBM could also result in huge maintenance cost savings. If the system is fully implemented, the Army can save about $9.3 million per year in eliminating many maintenance test flights on the Apache, for example, on a direct reimbursable basis. For the UH-60 Blackhawk, it could amount to a savings of $2.6 million per year.

"Knowing the condition of the aircraft helps Soldiers avoid potential fatalities due to helicopter critical component failure," Le said.

"The great thing about HUMS is that it provides a digital data stream which allows us to update the models for individual components of the aircraft by the bearings and the gears," said Romeo DelRosario, chief of the electronics technology branch within ARL's Sensors and Electron Devices Directorate. "It allows you to increase the accuracy of potential failure predictions."

Under the ARL CBM research, ARL scientists and engineers also work with researchers from other government agencies, including the U.S. Air Force; U.S. Navy; academia, including University of California-Irvine and University of Maryland; and industry, including Acellent Technologies Inc., Sikorsky Aircraft Company, and Boeing Aircraft.

Source: U.S. Army Research Laboratory

Published August 2012

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