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Test equipment advancing to meet rapidly changing market needs

Although the rise of the IoT, 5G, and advanced automotive electronics markets is instigating rapid changes in technology, test equipment is keeping pace, and not just in extensions to bandwidth specifications or signal resolution. Maureen Lipps, Multicomp Pro Private Label Product Segment Leader, Test and Tools, Newark Electronics, runs through important advances in the industry and its tools.
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Smallest rugged AI supercomputer for avionics

Aitech Systems has released the A178-AV, the latest iteration of its smallest rugged GPGPU AI super-computers available with the powerful NVIDIA Jetson AGX Xavier System-on-Module. With its compact size, the A178-AV is the most advanced solution for artificial intelligence (AI), deep learning, and video and signal processing for next-gen avionic platforms.
Learn more.

Touchless angle sensors get CAN SAE J1939 interface

Novotechnik has added the CAN J1939 interface (developed for heavy-duty vehicles) to its RFC4800 Series of touchless angle sensors measuring angular position up to 360°, turn direction, turns, speed, and operational status. It can provide one or two output channels. It has a longer life and robustness than an optical encoder. It can signal if a sensor needs replacing or average a programmable number of values to output to reduce external noise if present. This is wear-free angle measurement made easy.
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Radar level sensor monitors liquids and powders

The innovative FR Series non-contact radar level sensor from Keyence has been designed to monitor the level of both liquid and powder in any environment. This sensor features short- and long-range models, as well as chemical and sanitary options to address a wide array of level sensing applications. Works even when obstructions or harsh conditions are present, such as build-up, steam, or turbulence.
Learn more.

Raspberry Pi launches $70 AI Kit

Artificial intelligence (AI) is all the rage, and the makers of Raspberry Pi have created a way for enthusiasts of the single-board computer systems to take part and do a lot of experimenting along the way.
Read the full article.

3D model sharing at Brother Industries cuts rework

When Brother Industries, maker of printers, computers, and computer-related electronics, deployed Lattice Technology's XVL Player as a viewer for sharing 3D models throughout the processes of product design, parts design, mold design, mold production, and QA of molded parts, they reduced rework significantly -- especially from downstream departments. XVL Studio with its Difference Check Option helped address the rework in mold design, for example, by always keeping everyone informed of design changes.
Read this real-world case study.

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.
Learn more (video included on page).

New! Thermoelectric dehumidifiers for enclosures

Seifert Systems has just introduced its line of compact Soliflex^® Series thermoelectric dehumidifiers, with or without condensate pump. These IP 56-rated units are designed to dehumidify enclosures and small control panels, can be used indoors or outdoors, and are maintenance free. When used with a hygrostat, Soliflex dehumidifiers will keep enclosure humidity below a defined level and only operate when needed.
Learn more.

More Stego enclosure heater options from AutomationDirect

Automation-Direct has added more Stego enclosure heaters to their Enclosure Thermal Management lineup. These new 120 to 240 VAC/VDC units include small, flat versions that distribute heat evenly within compact enclosures and are available with 8- or 10-W heating capacities. Also added are compact loop heaters that feature a patented loop body design for increased natural convection airflow, reduced thermal stress on the heater, and better heat transfer. Loop heaters are available in 10- to 150-W heating capacities.
Learn more.

Great design: Handle with integrated lighting/signaling

Signaling and indicator lights, switches, and buttons -- elements that hardly any machine can do without. The new JW Winco cabinet U-handle EN 6284 integrates all these functions into a single, compact element. The new U-handle is designed to enhance the operation of systems and machines. It features an integrated button and a large, colored, backlit area on the back of the handle. These elements can be used individually or in combination, providing a versatile tool for system control and process monitoring that can be seen from across the room.
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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.

AI development kit for multi-camera products

The QCS6490 Vision-AI Development Kit from Avnet enables engineering teams to rapidly prototype hardware, application software, and AI enablement for multi-camera, high-performance, Edge AI-enabled custom embedded products. The kit facilitates design with the new, energy-efficient MSC SM2S-QCS6490 SMARC compute module based on the Qualcomm QCS6490 processor. Provides support for up to four MIPI CSI cameras and concurrent Mini DisplayPort and MIPI DSI displays.
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High-temp cabinet cooler keeps incineration process in business

An EXAIR client company handles waste treatment on a large ship by operating an incinerator. The area where the incinerator is located gets very hot (over 120° F). This causes failures in the electronics package used to control the incineration process. Since compressed air is readily available, EXAIR's Model HT4225 Cabinet Cooler System is being used to keep the panel cool. It saved the customer from having to replace their control units due to the hot conditions in the incinerator room. Thermostat control is also available, conserving air and operating only when needed to minimize air consumption.
Learn about EXAIR's huge selection of Cabinet Coolers.

Compact snap-in capacitors for general-purpose applications

TDK's new EPCOS B43659 series of snap-in aluminum electrolytic capacitors is the next generation of ultra-compact, general-purpose components for voltages of 450 V (DC) featuring an extremely high CV product. It provides the same features and serves the same applications as the previous series but is much more compact. These RoHS-compliant capacitors can be used in a wide range of applications, such as switched-mode power supplies, frequency converters, UPS, medical equipment, and solar inverters.
Get all the specs.

Conductive Brush Ring overcomes current leakage in EV powertrains

SKF's new Conductive Brush Ring paves the way to greater reliability and longer life in high-performance electric vehicle powertrain systems. Using pure carbon fiber bristles, it provides a reliable electrical connection between an EV eAxle rotor shaft and its housing. When used in combination with SKF Hybrid ceramic ball bearings, it helps to alleviate parasitic current effects that can lead to premature failure in bearings and other components. Available in different configurations for wet (oil-lubricated) motor designs -- and soon for dry (sealed) applications.
Learn more.

New world record for tandem solar cell efficiency

Crystalline silicon solar cells dominate the global photovoltaic market with module efficiencies around 20 to 22%. However, the field of solar energy is wanting for innovative materials and approaches that yield even higher efficiencies in support of global renewable energy goals. Tandem solar cells that combine silicon and perovskite sub-cells are widely regarded as a promising, high-performing, and viable alternative to conventional crystalline solar cells.

Researchers at the King Abdullah University of Science and Technology (KAUST) in Saudi Arabia have produced a perovskite/silicon tandem solar cell with a power conversion efficiency (PCE) of 33.2% -- the highest tandem device efficiency in the world to date, surpassing that of Helmholtz Zentrum Berlin's (HZB) record of 32.5% PCE.

The work was undertaken at the Photovoltaics Laboratory (KPV-Lab) of the KAUST Solar Center. The tandem device was certified by the European Solar Test Installation (ESTI) and listed at the top of the National Renewable Energy Laboratory's (NREL) Best Research-cell Efficiency Chart.

KAUST postdoctoral fellow Dr. Esma Ugur displays the perovskite/silicon tandem solar cell that she and team researchers in the KAUST Photovoltaics Laboratory developed. [Photo credit: KAUST]

 

 

 

 

Led by Dr. Stefaan De Wolf, professor of material science and engineering and interim associate director of the KAUST Solar Center, the team has steadily been perfecting the perovskite/silicon tandem cell concept since 2016 -- developing new materials, methods, and device structures, and tackling fundamental challenges, such as how to uniformly cover the micrometer-sized pyramidal surface of silicon cells with perovskite material.

The resulting tandem solar cell combines perovskite top cells on industrially compatible, two-sided, textured silicon bottom cells. The perovskite top layer absorbs blue light best, while the silicon foundation absorbs red light best. The combination of these materials maximizes the capture and conversion of sunlight into electricity more efficiently than the conventional single-junction silicon analogs.

The innovation is a significant breakthrough in the field of solar energy at a time when market predictions estimate the tandem perovskite/silicon technologies will comprise more than $10 billion of the global photovoltaic market share by 2032.

Close view of the perovskite/silicon tandem solar cell that researchers in the KAUST Photovoltaics Laboratory developed, recognized as the world's most efficient silicon/perovskite tandem solar cell at 33.2% PCE. [Photo credit: KAUST]

 

 

 

 

"This new record is the highest PCE of any two-junction solar cell under non-concentrated light, attesting the tremendous promise of perovskite/silicon tandems to deliver ultra-high-performance photovoltaic modules, which is critical to rapidly achieve renewable energy goals towards combatting climate change," De Wolf said.

The collective knowledge and skills of several lead researchers contributed to the recent achievement, in particular Dr. Esma Ugur, who specializes in optical spectroscopy and the analysis and visualization of cell defects; Dr. Erkan Aydin, an expert in the scalability and stability of ultra-efficient tandem solar cells; and Dr. Thomas Allen, who focuses on c-Si bottom cell development.

The team is currently exploring scalable methods to produce industrial-scale perovskite/silicon tandem cells with areas exceeding 240 cm², as well as strategies to obtain highly stable tandem devices that will pass the critical industrial stability protocols.

Source: King Abdullah University of Science and Technology

Published May 2023

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