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Isolated probing tech for fast-switching power device testing

Keysight Technologies has developed an optically isolated differential probing family dedicated to enhancing efficiency and performance testing of fast-switching devices such as wide-bandgap GaN and SiC semiconductors. Validation of floating half-bridge and full-bridge architectures commonly used in power conversion, motor drives, and inverters requires measurement of small differential signals riding on high common-mode voltages. This measurement can be challenging due to voltage source fluctuations relative to ground, noise interference, and safety concerns.
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Protect sensitive electronics in explosive environments with new aluminum ATEX Cabinet Cooler Systems

EXAIR's ATEX Cabinet Cooler^® Systems deliver a powerful and affordable solution for keeping electrical enclosures cool in hazardous ATEX classified areas -- and they're now available in durable aluminum construction. Engineered for use in Zones 2 and 22, these coolers are UL tested, CE compliant, and meet stringent ATEX standards for purged and pressurized enclosures. With cooling capacities up to 5,600 Btu/Hr., ATEX Cabinet Coolers are ideal for preventing overheating in electrical cabinets. EXAIR offers a comprehensive lineup of systems.
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PLC handbook chock full of must-know information

Automation-Direct's Practical Guide to Program-mable Logic Controllers Handbook has been improved with tons of new need-to-know info, making it a more comprehensive guide to the world of PLCs. Besides covering the basics of PLC history, PLC hardware, and PLC software, this guide takes you deeper into the ever-changing world of PLC communication, the importance of feedback loops, cyber security, and many other areas that are a must-know for any PLC novice or seasoned automation professional.
Get this great resource today.

Haptic feedback prototyping kit from TDK

Get your customers to feel the difference your products make. TDK has released a development starter kit for fast haptics prototyping. It gives mechanical designers and engineers first impressions of the haptic feedback using PowerHap piezo actuators, shows how the mechanical integration works, and provides a reference design. Applications include automotive, displays and tablets, household appliances, vending machines, game controllers, industrial equipment, and medical devices.
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Mini ESD preset torque screwdriver

Need precision fastening with ESD protection at the smallest torque levels? Mountz has you covered. The new FG Mini ESD Preset Torque Screwdriver is built for low-torque, high-precision tasks. Its compact design makes it ideal for tight spaces and small fasteners, while delivering the same reliable control and ESD protection users have come to expect from Mountz. Two models available: FG25z (3 to 25 ozf.in, 2 to 17.7 cN-m) and FG50z (20 to 50 ozf.in, 14.1 to 35.3 cN-m).
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Laumas load cells and electronics from AutomationDirect

Automation-Direct has added Laumas precision-engineered load cells, transmitters, and accessories that deliver reliable performance in industrial weighing and force measurement applications. The FCAL series high-precision bending beam load cells are ideal for low- to mid-capacity systems. CTL series load cells are designed for both tension and compression, with excellent linearity. The CBL series low-profile compression load cells are perfect for space-limited applications. Laumas load cell transmitters are available too for precise monitoring and control. Very good pricing.
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Engineer's Toolbox: What is ground loop feedback?

Improper grounding can create problems in data logging, data acquisition, and measurement and control systems. One of the most common problems is known as ground loop feedback. Experts at CAS DataLoggers run through five ways to eliminate this problem.
Read the full article.

What is a braking resistor?

According to Automation-Direct, "Braking resistors don't actually provide braking directly -- rather, they allow a drive to stop a loaded motor faster." Why is this important? Protect your AC or DC drive system from regenerative voltage that can create an over-voltage fault on the drive -- especially with high inertial loads or rapid deceleration.
View the video.

New Digital Static Meter: Precise measurement, easy use

Static electricity isn't just a nuisance; it's a serious threat to manufacturing efficiency, product integrity, and workplace safety. Unchecked static can lead to costly downtime, product defects, material jams, and even hazardous shocks to employees. If static is interfering with your processes, EXAIR's upgraded Model 7905 Digital Static Meter offers an essential first step in identifying and eliminating the problem. With just the press of a button, this easy-to-use, handheld device pinpoints the highest voltage areas in your facility, helping you diagnose static issues before they become a problem.
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New laser cutting modulating strategy tested with Mikrotron high-speed camera

Modulating a laser beam's intensity distribution optimizes energy delivery to the process zone, resulting in better cutting speed, cut edge quality, and cut kerf geometry. Scientists in Belgium have come up with a new method that they say produces better cutting results.
Read the full article.

All-in-one embedded PLC based on Raspberry Pi 4 -- build control applications

The new PLC CPI-PS10CM4 from Contec Co. is a compact embedded programmable logic controller (PLC) that is loaded with CODESYS, the world's most widely used software PLC. This product uses Contec's original single-board computer, which is based on Raspberry Pi's latest embedded module, the Compute Module 4 (CM4). By using the wide range of peripheral devices for Raspberry Pi, such as Contec's CPI Series, you can build various control applications in a PLC language that complies with the IEC 61131-3 international standard.
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Torque sensors for fastening applications and more

Saelig Company has introduced the Sensor Technology SGR525/526 Series Torque Sensors to provide precision torque monitoring that is critical for performance and safety. The square drive design (for applications with non-cylindrical shafts) allows for seamless integration into power tools, test rigs, industrial machinery, and precision fastening applications, ensuring superior torque measurement without the need for additional adapters or modifications. The SGR525 offers torque measurement only, while the SGR526 provides torque, speed, and power measurement using a 360-pulse-per-revolution encoder. Industries include automotive, aerospace, manufacturing, and research and development.
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Wide-angle camera optimized for larger, faster conveyor belts

Wider conveyor belts operating at higher speeds are now commonplace in modern logistics. To keep up, SVS-Vistek is offering a cost-effective alternative to multi-camera systems with its fxo901CXGE 10-GigE color camera featuring the Sony IMX901-AQR wide-aspect global shutter 16.4-megapixel CMOS sensor. Unlike standard cameras, this unit captures targets in a wide field of view while maintaining high resolutions. The 4:1 horizontal aspect ratio allows one fxo901CXGE to replace an entire multi-camera system, removing the need for image synchronization.
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Handheld thermal imager cuts diagnostic time

The FLIR TG268 is a next-generation thermal imager that provides professionals in the utility, manufacturing, electrical, automotive, and industrial sectors with a lightweight, handheld, affordable condition monitoring tool. Latest enhancements include higher temperature ranges, improved resolution, and larger data storage capacity. Go beyond the restrictions of single-spot IR thermometers to view and evaluate hot and cold spots that may signify potentially dangerous issues. Accurately measure temps from -25 to 400 C. Native thermal images improved with Super Resolution upscaling.
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SOLIDWORKS 2025: Sheet metal design top features from an expert

Find out what's new in SOLIDWORKS 2025 when it comes to sheet metal and weldments, and learn some valuable tips and tricks along the way from TriMech. Topics covered include copying cut list properties, bend notches, tab and slot enhancements, groove beads (a new type of weld bead), performance enhancements, and more. When you're done, check out TriMech's full YouTube channel filled with educational material.
View the video.

3D integrated circuitry: NASA's new microgap cooling technology to be tested aboard reusable launch vehicle

By Lori Keesey, NASA's Goddard Space Flight Center

An emerging technology for removing excessive, potentially damaging heat from small, tightly packed instrument electronics and other spaceflight gear will be demonstrated for the first time during an upcoming suborbital flight aboard a reusable launch vehicle.

Thermal engineer Franklin Robinson, who works at NASA's Goddard Space Flight Center in Greenbelt, MD, is scheduled to fly his experiment aboard the fully reusable Blue Origin New Shepard launch vehicle to prove that the microgap cooling technology is immune from the effects of zero gravity.

The demonstration, funded by NASA's Space Technology Mission Directorate's Flight Opportunities program, is an important step in validating the system, which engineers believe could be ideal for cooling tightly packed, high-power integrated circuits, power electronics, laser heads, or other devices. The smaller the space between these electronics, the harder it is to remove the heat.

Goddard technologist Frank Robinson is scheduled to fly his microgap cooling technology aboard the fully reusable Blue Origin New Shepard launch. [Credits: NASA's Goddard Space Flight Center/Bill Hrybyk]

 

 

 

 

Because these devices are vulnerable to overheating -- just like any electronic device on Earth -- the cooling technology must operate under all conditions, including the microgravity environment found in space.

"Frank [Robinson] is demonstrating the fundamental concept, and we need the flight validation to gain confidence," said Goddard Senior Technologist for Strategic Integration Ted Swanson. "While theory predicts that the lack of gravity would have a negligible impact on the performance of microgap coolers, this needs to be demonstrated in a space-like environment. Otherwise, potential users are unlikely to commit to the technology."

It's all about the microchannel conduits
With microgap cooling, heat generated by electronics and other devices is removed by flowing a coolant through embedded, rectangular-shaped channels within or between heat-generating devices. Robinson's flight experiment also features "flow boiling," where, as its name implies, the coolant boils as it flows through the tiny gaps. According to Robinson, the technique offers a higher rate of heat transfer, which keeps devices cooler and, therefore, less likely to fail due to overheating.

To remove heat in more traditional electronic devices, designers create a "floor plan." They keep the heat-generating circuits and other hardware as far apart as possible. The heat travels into the printed circuit board, where it is directed to a clamp in the sidewall of the electronics box, eventually making its way to a box-mounted radiator.

The Blue Origin New Shepard launch vehicle (pictured here) is flying an experiment designed to prove that the microgap-cooling technology is immune from the effects of zero gravity and, therefore, potentially useful for removing heat from tightly packed electronics on spaceflight instruments. [Credits: Blue Origin]

 

 

 

 

Traditional approaches, however, would not work well for emerging 3D integrated circuitry -- a highly promising technology that could satisfy users' thirst for more computing power.

With 3D circuitry, computer chips literally are stacked atop one another and not spread over a circuit board, saving space in electronic devices and instruments. Interconnects link each level to its adjacent neighbors, much like how elevators connect one floor to the next in a skyscraper. With shorter wiring linking the chips, data moves both horizontally and vertically, improving bandwidth, computational speed, and performance, all while consuming less power.

Because not all the chips are in contact with the printed circuit board, traditional cooling techniques wouldn't work well with 3D circuitry, Robinson said, adding he began his research with NASA support to assure that the agency could take advantage of 3D circuitry when it became available. "However, we can remove the heat by flowing a coolant through these tiny embedded channels."

Testing effectiveness in microgravity
Although Robinson has tested his cooling technology at various orientations in a laboratory, the question is whether it would be equally effective in space. "What we need to determine is how small the channels must be to achieve gravity independence. Right now, we don't have a perfect understanding," he said.

Should the microgap technology succeed during the demonstration, the next step would be to find an actual application and demonstrate it in space, Swanson said.

Through the Flight Opportunities program, the Space Technology Mission Directorate (STMD) selects promising technologies from industry, academia, and government for testing on commercial launch vehicles. The program is funded by STMD, and managed at NASA's Armstrong Flight Research Center in Edwards, CA.

STMD is responsible for developing the crosscutting, pioneering, new technologies and capabilities needed by the agency to achieve its current and future missions.

Published June 2018

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