January 18, 2022 Volume 18 Issue 03

Electrical/Electronic News & Products

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Do-it-yourself high-performance aluminum cold plates

New high-performance aluminum cold plates from Advanced Thermal Solutions (ATS) let engineers safely drill holes in a mounting pattern that matches the specific connection points of hot devices that need cooling, providing lots of customization options. ATS says its cold plates have been demonstrated to provide more than 30% better thermal performance than other commercially available cold plates.
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Long-range retro-reflective photoelectric sensors overcome interference

The new 36 series of sensors from Leuze are suitable for demanding requirements in intralogistics, packaging systems, and the automotive industry. They detect objects with different optical properties -- even at a great distance or when sources of interference are present (such as film-wrapped pallets, vibration, or ambient lighting). Available as sensors with background suppression (range to 2.5 m), as retro-reflective photoelectric sensors (up to 17 m), or as throughbeam photoelectric sensors (up to 80 m).
Learn more.


Calculator simplifies cabinet cooling system selection

EXAIR Cabinet Cooler Systems provide a comprehensive solution for cooling and purging electronic cabinets and come in a litany of different cooling capacities, NEMA ratings, and classifications. With the breadth of available options, choosing the best Cabinet Cooler for a specific environment can be a tedious task and depends on a few key factors. With EXAIR's new Cabinet Cooler Calculator, it's easy to find the ideal Cabinet Cooler System for any specific application.
Learn more.


New low-voltage compact LED bulbs

LEDtronics has released new additions to its industry-leading offering of intermediate-based LED bulbs that fit in enclosed fixtures, featuring low voltage, 160-degree spherical illumination, low power consumption, and high lumen intensity. The B605SM series is available either as a 14-VAC/VDC bulb that replaces incandescent lamps 67, 89, 97, 98, 1095, 1155, and 5008, or as a 28-VAC/VDC bulb that replaces incandescents 71, 303, 623, and 1251. These bulbs are a perfect fit in applications such as machine status or gaming candle indicators, indicator lights for instrumentation, panel-mount pilot lights, accent lighting, and automotive.
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Neat. How to prototype 4x machine vision applications on one small embedded system quickly

Teledyne FLIR has put together a neat article that shows how to prototype a machine vision system quickly that runs four simultaneous applications, three of which use deep learning. The system uses the Quartet Embedded Solution for TX2, a customized carrier board that enables easy integration of up to four USB3 cameras at full bandwidth. The example traffic systems application includes license plate recognition, vehicle type categorization, vehicle color classification, and seeing through a windshield -- all simultaneously. Very cool.
Read the Teledyne FLIR application article.


New Gefran inclination sensors use MEMS technology

Automation-Direct has added Gefran inclination sensors to their growing lineup of position transducers. Gefran sensors use cutting-edge MEMS technology (micro-electromechanical devices integrated onto a single silicon chip) to provide reliable and precise tilt angle measurement with respect to gravity. These sensors are rugged and suitable for the harshest environments. M12 quick-disconnect models are fully redundant, having two sensors in one housing.
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Affix a heat sink in seconds!

superGRIP is a two-component system from Advanced Thermal Solutions (ATS) that can be installed in seconds to mount heat sinks securely to a wide range of components -- without needing to drill holes in the PCB. It features an injection molded plastic frame clip and a stainless steel spring clip. This clever system provides a strong, even binding force with minimal space required around the component's perimeter, making it ideal for densely populated PCBs.
View the video.


Cool Tools: Entry-level high-tech portable 3D scanner

The GOM Scan 1 from CAPTURE 3D is an affordable, precise 3D scanner with mesh-editing capabilities to accurately digitize physical objects into the 3D world. GOM Scan 1 provides accessibility to the leading GOM blue light 3D scanning technology used by top manufacturers worldwide. Applications include creating a digital file of an object for 3D printing, reverse engineering, manufacturing, quality control, virtual display and 3D modeling, research and education, art and design, and healthcare. GOM Scan 1 offers GOM Inspect 3D inspection software to quickly capture, visualize, and analyze 3D measurement data within the same workflow.
Learn more.


High-def SWIR camera for military apps

Attollo Engineering's new Phoenix HD5 SWIR Camera is an uncooled high-def imager that features the industry's smallest shortwave infrared HD sensor and an ultra-small 5-┬Ám pixel pitch, which permits more pixels on target with a short-focal-length optic. Specifically designed for low size, weight, and power (low-SWaP) applications, the HD5 SWIR camera is ideal for integration into small gimbals, small unmanned aircraft systems (SUAS), and handheld and soldier-mounted systems.
Learn more.


Control panel solutions: Wire duct and wire wrap

Automation-Direct sells everything you need to build quality control panels, including a large assortment of wiring duct, flexible duct, wire wrap, wire sleeve, and associated tools and accessories. Check out all that this one-stop shop has to offer. High stocking rates and fast shipping too.
View the video.


Space Applications: Smallest rad-tolerant network storage

Aitech Systems has released the most compact network storage device available for use in near-earth-orbit and low-earth-orbit space applications. With a raw storage capacity of almost 1 TB, the new S999 Aitech is a 2.5-in. solid state drive (SSD) for high-performance spacecraft data processing or distributed computing systems in satellites and human-rated platforms.
Learn more.


Cool Tools: All-in-one laser tracker

Exact Metrology now offers high-performance laser tracker technology in a portable and easy-to-use form factor thanks to the Leica Absolute Tracker AT960. This is a robust, all-in-one laser tracker that fits in a single flight case. Offering high-speed dynamic measurement as standard, it is a complete solution for six degrees of freedom (6DoF) probing, scanning, and automated inspection, as well as reflector measurement. Combined with the Real-Time Feature Pack and Leica T-Mac, the AT960 becomes a laser tracker that meets the deterministic measurement data-delivery requirements of high-end automated installations.
Learn more.


Strain sensor can help prevent structural disasters

Developed to help prevent civil disasters and save lives, HEIDENHAIN's ESR digital strain sensor monitors the structural health of bridges, buildings, wind turbines, and even automation equipment. This fatigue-free measurement concept provides high-resolution digital input into a system of choice. With a renewed emphasis on improving the national infrastructure, the digital ESR strain sensor is the perfect option, since it offers significantly higher accuracy and increased robustness when compared to conventional strain and vibration gauges. It also offers transferable mounting, allowing users to move the one-gauge sensor to multiple locations.
Learn more.


Custom air knives for unique applications

EXAIR's Air Knives are an efficient and highly effective tool for blowoff, cooling, cleaning, and drying in a myriad of manufacturing processes. To accommodate the wide variety of unique problems manufacturers face, EXAIR has the ability to tailor Air Knives to different specifications -- from size, shape, and material to custom mounting holes and dimensions. They solve distinct manufacturing problems not already addressed by the industry's largest selection of Air Knives, which are available in Super, Standard, and Full-Flow styles that all can be customized.
Learn more.


Great Resources: Flexible circuit design guide

Tech-Etch uses advanced techniques to manufacture flex and rigid-flex circuits to exacting customer specifications. Special processes include selective plating a single circuit with two different finishes, contoured circuits with variable metal thickness, semi-additive and subtractive techniques, open window or cantilevered contact leads, plus SMT for component assembly. Tech-Etch specializes in flexible circuits for medical device, medical implant, diagnostic ultrasound, and patient monitoring applications, in addition to telecommunications, aerospace, semiconductor, and other high-reliability electronic applications.
Learn about flex circuits and download the guide (no registration required).


Atom by atom: New silicon computer chip technique opens up quantum computing construction possibilities

Quantum computers could be constructed cheaply and reliably using a new technique perfected by a University of Melbourne-led team that embeds single atoms in silicon wafers, one by one, in a process outlined in an Advanced Materials paper.

The new technique -- developed by Professor David Jamieson and co-authors from UNSW Sydney (Australia), Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Leibniz Institute of Surface Engineering (IOM), and RMIT -- can create large-scale patterns of counted atoms that are controlled so their quantum states can be manipulated, coupled, and read out.

Lead author of the paper, Professor Jamieson, said his team's vision was to use this technique to build a very, very large-scale quantum device.

"We believe we ultimately could make large-scale machines based on single-atom quantum bits by using our method and taking advantage of the manufacturing techniques that the semiconductor industry has perfected," Jamieson said.

The technique takes advantage of the precision of the atomic force microscope, which has a sharp cantilever that "touches" the surface of a chip with a positioning accuracy of just half a nanometer, about the same as the spacing between atoms in a silicon crystal.

The team drilled a tiny hole in this cantilever, so that when it was showered with phosphorus atoms one would occasionally drop through the hole and embed in the silicon substrate.


VIDEO: Building a silicon quantum computer chip atom by atom. [Credit: University of Melbourne]

The key was knowing precisely when one atom -- and no more than one -- had become embedded in the substrate. Then the cantilever could move to the next precise position on the array.

The team discovered that the kinetic energy of the atom as it ploughs into the silicon crystal and dissipates its energy by friction can be exploited to make a tiny electronic "click."

Professor Jamieson said the team could "hear" the electronic click as each atom dropped into one of the 10,000 sites in the prototype device.

"One atom colliding with a piece of silicon makes a very faint click, but we have invented very sensitive electronics used to detect the click. It's much amplified and gives a loud signal, a loud and reliable signal," Jamieson said. "That allows us to be very confident of our method. We can say, 'Oh, there was a click. An atom just arrived. Now we can move the cantilever to the next spot and wait for the next atom.'"

Until now, implanting atoms in silicon has been a haphazard process, where a silicon chip gets showered with phosphorus, which implants in a random pattern like raindrops on a window.

Co-author, Professor Andrea Morello from the University of New South Wales said the new technique embedded phosphorus ions, precisely counting each one, in a silicon substrate creating a qubit "chip," which can then be used in lab experiments to test designs for large-scale devices.

"This will allow us to engineer the quantum logic operations between large arrays of individual atoms, retaining highly accurate operations across the whole processor," Morello said. "Instead of implanting many atoms in random locations and selecting the ones that work best, they will now be placed in an orderly array, similar to the transistors in conventional semiconductors computer chips."

First author University of Melbourne's Dr. Alexander (Melvin) Jakob said highly specialized equipment was used for the collaboration.

"We used advanced technology developed for sensitive X-ray detectors and a special atomic force microscope originally developed for the Rosetta space mission along with a comprehensive computer model for the trajectory of ions implanted into silicon, developed in collaboration with our colleagues in Germany," Jakob said. "With our Center partners, we have already produced ground-breaking results on single-atom qubits made with this technique, but the new discovery will accelerate our work on large-scale devices."

Practical implications of quantum computers include new ways of optimizing timetable and finances, unbreakable cryptography, and computational drug design.

Source: Science in Public (journal)

Published January 2022

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