April 19, 2022 Volume 18 Issue 15

Electrical/Electronic News & Products

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Fluke 831 Laser Shaft Alignment Tool

Misalignment causes at least half of all damage to rotating machinery, but instead of fixing the problem, teams often just treat the symptoms by replacing bearings, couplings, and seals. The new Fluke 831 Laser Shaft Alignment Tool makes shaft alignment easy with an intuitive guided user interface that enables quick and complete shaft alignment without advanced training or complicated programs.
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Image sensor for virtual reality, drones, machine vision

OMNIVISION has just announced the OG0VE global shutter (GS) image sensor, a small-form-factor, high-sensitivity device for AR/VR/MR, metaverse, drone, machine vision, and barcode scanner products. This new-generation image sensor is 26% smaller and more than 50% more power efficient than its predecessor. It supports one-lane MIPI D-PHY at up to 800 Mbps and was designed to address the high market demand for the smallest and lowest power-consuming cameras.
Learn more.


Smallest Smart Motor Module for DC fan applications

Alpha and Omega Semiconductor Limited has introduced an extension to its compact Smart Motor Module (SMM) family. Available in an ultra-compact, thermally enhanced 3-mm x 3-mm QFN-18L package, the highly integrated AOZ9530QV SMM is a half-bridge power stage with a slew of features and protections that simplify motor drive designs. It is suitable for use in a large number of BLDC fan applications ranging from PC and server fans to seat cooling and home appliances.
Learn more.


Application Note: Wireless -- Decoupling high-frequency signals from a DC supply

From 5G systems to radio and antenna applications, wireless communication accompanies us throughout our daily lives, so the demand for universal high-frequency amplifiers is correspondingly high. By selecting the optimal passive components, the transmission characteristics of the amplifier can be improved during development. A well-designed layout further improves RF performance. The aim is to transmit both RF signals and the DC supply on a single line without interference or cross-talk. A key component is the inductor for decoupling the RF and DC supplies.
Read this in-depth W├╝rth Elektronik application note.


Smallest all-in-one LIN driver propels relay window lifters

Melexis' new LIN pre-driver IC for relay DC motors offers a combination of high power, compactness, and attractive pricing. The MLX81160 is the latest addition to the company's Gen3 family of compatible embedded motor drivers. Its 48-KB of memory (16 KB ROM for the included LIN protocol and 32 KB Flash for the application software) is suitable for applications like window regulators.
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Pull-type solenoids in a range to meet tons of applications

Magnetic Sensor Systems (MSS) has released their S-20-100X model of high-efficiency, low-cost Pull Type Tubular Solenoids (1 in. diameter x 2 in. long). Their S-20-100X series features 18 different solenoids to select from based on the voltage, duty cycle, force, and stroke requirement of the user. MSS solenoid coils typically use Class F 23- to 40-AWG windings with Class A insulation for better protection of the solenoid during longer duty cycles. Applications include: vending machines, medical dispensing, mixing, valve control, farm machinery, disconnects, transmission shifting, fire suppression systems, cabinet locks, door controls, and sorting equipment.
Learn more.


Industrial imaging at warp speed

When fast-moving scenes need to be captured in all their details, a high-performance transmission interface is essential in addition to the right sensor. With uEye Warp10, IDS Imaging Development Systems GmbH is launching a new camera family that, thanks to 10GigE, transmits data in the Gigabit Ethernet-based network at a very high frame rate and virtually without delay. The first models with the IMX250 (5 MP), IMX253 (12 MP), and IMX255 (8.9 MP) sensors from the Sony Pregius series are now available.
Learn more.


Top Tech Tips: How to specify electric rod-style actuators for optimal performance, reliability, and efficiency

Andy Zaske, Vice President, Tolomatic, provides his Top 10 Tips for specifying electric rod-style actuators, which have a higher initial cost, more advanced design, and more predictable performance compared to fluid power cylinders. This is a really thorough presentation filled with useful information.
Read the full article.


Standard IP65 slip rings with short lead times

The Orbex Group, a leading manufacturer of high-performance electric motors and slip rings, introduces standard slip rings with an IP65 protection rating, providing washdown tolerance in many food, beverage, and pharmaceutical manufacturing applications. These washdown-ready slip rings feature stainless steel or aluminum housings. They offer flexible mounting options with through-hole diameters ranging from 25 to 100 mm, or capsule style when a through-hole is not required.
Learn more.


New polymers engineered for e-motor applications

Freudenberg Sealing Technologies has expanded the use of its Thermally Conductive, Electrically Insulating (TCEI) materials to produce walled slot liners for electric motor applications. The company's TCEI material grades demonstrate superior thermal conductivity and better electrical insulation when tested against other thermoplastic materials currently available.
Read the full article.


Heatsink solutions for electronic housings

Phoenix Contact has increased the breadth and depth of its popular Industrial Case System (ICS) housing family to include both customizable passive heatsinks and heatsink fillers. New heatsink solutions allow design engineers to choose from a wide range of thermal management solutions to keep their components from overheating. To support the new heatsink solutions, a web-based, intuitive platform for thermal assessment has been incorporated into the Electronic Housing Online Configurator tool on Phoenix Contact's website.
Learn more.


Mini-FAKRA cable assemblies for automotive and industrial applications requiring high data transfer rates

Amphenol RF has expanded its AUTOMATE Type A Mini-FAKRA product series with pre-configured cable assemblies. These assemblies feature a straight quad port mini-FAKRA jack on both ends and are designed on low-loss TFC-302LL. AUTOMATE assemblies support data transmission rates up to 20 Gbps, which makes them ideal for automotive and industrial applications that require high data transfer rates to communicate information for safety, performance, and entertainment without lag.
Learn more.


New compact touchless linear position sensors

The TFD Series of touchless linear position sensors from Novotechnik provides wear-free operation in tight spaces. The TFD-4000 Series uses a magnetic position marker to provide a touchless measurement range of 0 to 14, 24, or 50 mm -- depending on model. These sensors make measurements through air and non-magnetic materials. Sensing direction can be either parallel or perpendicular to mounting holes. Applications include textile, packaging, and sheet metal machinery; medical applications; marine; mobile engine management; and construction, agricultural, and forestry machinery.
Learn more.


Top Tech Tip:
2D, 3D, or 2.5D? Choosing a vision system for your automation project

If you're looking at machine vision systems for automation, you will need to decide whether to invest in a 2D, 3D, or 2.5D camera system. That choice will have a major impact on the deployment's cost, complexity, capabilities, and functionality. OnRobot's Kristian Hulgard, General Manager - Americas, explains the differences, benefits, and shortcomings of each system type.
Read this informative OnRobot article.


Next-generation electronic digital comparators

The Millimess 2000 W(i) and 2001 W(i) Digital Comparators from Mahr set new standards in metrology with unique and innovative features such as touch display, inductive measurement system, and integrated wireless connectivity. The systems combine practical and reliable operation with maximum precision using a unique inductive measuring system.
Learn more.


Scientists discover 'knob' to control magnetic behavior in quantum material

Magnetism, one of the oldest technologies known to humans, is at the forefront of new-age materials that could enable next-generation lossless electronics and quantum computers. Researchers led by Penn State and the University of California, San Diego have discovered a new "knob" to control the magnetic behavior of one promising quantum material, and the findings could pave the way toward novel, efficient, and ultra-fast devices.

"The unique quantum mechanical make-up of this material -- manganese bismuth telluride -- allows it to carry lossless electrical currents, something of tremendous technological interest," said Hari Padmanabhan, who led the research as a graduate student at Penn State. "What makes this material especially intriguing is that this behavior is deeply connected to its magnetic properties. So, a knob to control magnetism in this material could also efficiently control these lossless currents."

Manganese bismuth telluride, a 2D material made of atomically thin stacked layers, is an example of a topological insulator, exotic materials that simultaneously can be insulators and conductors of electricity, the scientists said. Importantly, because this material is also magnetic, the currents conducted around its edges could be lossless, meaning they do not lose energy in the form of heat. Finding a way to tune the weak magnetic bonds between the layers of the material could unlock these functions.

Tiny vibrations of atoms, or phonons, in the material may be one way to achieve this, the scientists reported April 8 in the journal Nature Communications.

"Phonons are tiny atomic wiggles -- atoms dancing together in various patterns, present in all materials," Padmanabhan said. "We show that these atomic wiggles can potentially function as a knob to tune the magnetic bonding between the atomic layers in manganese bismuth telluride."

The scientists at Penn State studied the material using a technique called magneto-optical spectroscopy, shooting a laser onto a sample of the material and measuring the color and intensity of the reflected light, which carries information on the atomic vibrations. The team observed how the vibrations changed as they altered the temperature and magnetic field.

As they altered the magnetic field, the scientists observed changes in the intensity of the phonons. This effect is due to the phonons influencing the weak inter-layer magnetic bonding, the scientists said.

"Using temperature and magnetic field to vary the magnetic structure of the material, much like using a refrigerator magnet to magnetize a needle compass -- we found that the phonon intensities were strongly correlated with the magnetic structure," said Maxwell Poore, graduate student at UC San Diego, and co-author of the study. "Pairing these findings with theoretical calculations, we inferred that these atomic vibrations modify the magnetic bonding across layers of this material."

Scientists at UC San Diego conducted experiments to track these atomic vibrations in real time. The phonons oscillate faster than a trillion times a second, many times faster than modern computer chips, the scientists said. A 3.5-gigahertz computer processor, for example, operates at a frequency of 3.5 billion times per second.

"What was beautiful about this result was that we studied the material using different complementary experimental methods at different institutions and they all remarkably converged to the same picture," said Peter Kim, graduate student at UC San Diego, and co-author of the paper.

Further research is needed to directly use the magnetic knob, the scientists said. If that can be achieved, though, it could lead to ultra-fast devices that can efficiently and reversibly control lossless currents.

"A major challenge in making faster, more powerful electronic processors is that they heat up," said Venkatraman Gopalan, professor of materials science and engineering and physics at Penn State, Padmanabhan's former adviser, and co-author of the paper. "Heating wastes energy. If we could find efficient ways to control materials that host lossless currents, that would potentially allow us to deploy them in future energy-efficient electronic devices."

Source: Penn State

Published April 2022

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