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🤩 КПІ ім. Ігоря Сікорського отримав міжнародні сертифікати відповідності вимогам стандартів ISO 9001:2015 та ISO 21001:2025 KPI4U-2 нд, 07/19/2026 - 21:31

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So I made those PCBs at home. Those are adapters from SOP to DIP so prototyping is easier. Took me like a day submitted by /u/Effective_Vacation21 [link] [comments]

NUBURU Inc of Centennial, CO, USA (a dual-use defense & security integrated platform company focused on non-kinetic effects and directed-energy technologies, electronic warfare and defense mobility programs, software-orchestrated defense systems and advanced manufacturing) has announced initial results from a laser dazzler counter-UAS test campaign conducted at the facilities of Tekne S.p.A. in Italy...

NUBURU Inc of Centennial, CO, USA (a dual-use defense & security integrated platform company focused on non-kinetic effects and directed-energy technologies, electronic warfare and defense mobility programs, software-orchestrated defense systems and advanced manufacturing) has announced a proposed best-efforts public offering of up to $38m of its securities...

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I think you already know, but since July 1st a tax of €3 per ARTICLES is now mandatory. (they say it’s by categories but in reality, no) For €30 of electronic components, I have +€50 of taxes. For a person who has started to be interested in electronics recently, it hurts. So I come to try to find alternatives to aliexpress, with similar prices if possible… If the delivery lasts 6 months but there are no taxes I DONT CARE, I need the components at an affordable price. Thanks, and I hope that the aliexpress sellers will quickly find a solution for us submitted by /u/gluat [link] [comments]

Purchased AD SSM2019 amplifier from DigiKey, only 1 unit. Got 26… :) submitted by /u/daduka1999 [link] [comments]

For its fiscal third-quarter 2026 (to end-May), LED chip and component maker SemiLEDs Corp of Hsinchu, Taiwan has reported revenue of $9.07m, up from $1.06m last quarter, due to the increase of buy-sell purchase orders of equipment...

It took 100 years to come to fruition, but this recently created fluid enables non-magnetic electrostatic-based motors.

Say the word “motor” to most engineers and they almost always associate it with magnetics of some type, whether the term is explicitly stated or not. Of course, not all electrically powered motors use magnetism: piezoelectric motors use that well-known principle and the voltage-driven elongation of a crystal, and there are also tiny MEMS-based motors.

Still, magnetics is front of mind for most cases, with motors that take electric current and power and transform it into a magnetic force that drives the rotor. (Come to think of it, there are also pneumatic and hydraulic motors often used by mechanical engineers, often with some electronic control – but that’s another story for another day.)

That’s why a recent development led by a team at the Institute of Science Tokyo may change our thinking about non-magnetic motors. They have developed a rotary motor based on electrostatic forces rather than the usual electromagnetic ones. Using a ferroelectric fluid, motors that previously required fairly high voltages on the order of 1000 V can operate at much lower voltages. (Not familiar with ferroelectric fluids, or have them confused with ferrofluids? See the sidebar at the end.)

A critical factor in their approach is that the force generated by electricity is not limited to attraction along the direction of the applied voltage. Instead, there is also a force that acts perpendicular to that direction, creating a sideways-pushing force. In conventional materials, this sideways force is extremely weak and has long been considered too small to utilize and, as a result, has attracted little attention.

However, the team demonstrated that the sideways electrostatic force can, under the right conditions, become surprisingly strong. They placed the fluid between two electrodes separated by only a few millimeters and applied a voltage. The result was striking: the liquid was pushed sideways and moved nearly 10 centimeters even against gravity. When the same experiment was performed with conventional liquids, this motion did not occur; the effect appeared only with the ferroelectric fluid.

Another interesting finding was how the force increased. In ordinary materials, increasing the voltage does not easily lead to a large increase in force. In contrast, with the ferroelectric fluid, even a small increase in voltage led to a proportional increase in force. Through detailed deep-physics analysis, the team found that the electric field causes the molecules in the liquid to align in an ordered way, generating the sideways-pushing force.

Using ferroelectric nematic liquid crystals, they were able to show that transverse electrostatic force (TEF) can elevate the fluid between electrodes with a gap of 2.5 millimeters (mm) up to more than 80 mm at only 28 V/mm, corresponding to a stress greater than 1000 newtons/m2 (Figure 1).

Figure 1 Direct observation of the TEF produced interesting results. (a) Experimental setup where TEF is balanced with the gravitational force. Voltage-dependent fluid heights at a 10mm gap under applied voltages of 0 V (b), 50 V (c), 100 V (d), and 150 V (e). Note that the zero-point height is 1 cm on the ruler. (f) Case of a 2.5mm gap at DC 80 V. (g) Height of fluid, H, plotted as a function of the applied voltage V for 1.0 (green), 2.5 (pink), 5.0 (yellow), and 10mm (purple). The data for silicone oil and nematic liquid crystal 4-cyano-4′-pentylbiphenyl (5CB) at 80 V at a 2.5mm gap are shown as a gray bullet. (h) Generated stress, σ⊥, plotted as a function of the applied electric field E. (The inset is a magnification at a 1.0mm gap.) (Image source: Springer Nature)

This discovery led to a next logical next step: if this force can push, could it also be used to create rotation? The answer is yes, and they developed a prototype motor that does not use magnets, a metal rotor, or rare-earth metals (Figure 2).

Figure 2 A prototype plastic ferroelectric motor successfully implemented rotation (Left: angled view; Right: bottom view with the lower electrode removed to reveal the resin rotor) (Image source: Institute of Science Tokyo)

The structure can also be simpler and lighter. Because the rotating part can be made of resin rather than metal, devices can be made lighter and respond more quickly. The absence of magnetic materials also means it can be used where having these materials in proximity to other system parts can induce magnetic noise or distortions.

Additional tests were done to assess both stability and scalability for the TEF-based approach (Figure 3).

Figure 3 Testing of TEF scalability and stability further confirmed concept viability. (a) Lifting a resin weight (circled in white) by TEF generated in a ferroelectric fluid, before a DC voltage was applied (upper) and after lifting for 22mm upon application of DC 20 V (lower). The mass was 5 mg, constrained between the electrodes. The interelectrode  distance was fixed at 1.0mm. (b) Experimental setup for testing TEF scalability and stability. A tensile-testing machine holds a 3D-printed resin piece whose base area is 100mm2. The resin piece is immersed in the ferroelectric fluid reservoir to a depth of 1 mm; the aluminum parallel-plate electrodes of 56 mm length were fixed at a distance of 2.5 mm. The temperature was controlled by heaters with thermocouples inserted into the reservoir. The temperature of the ferroelectric fluid was directly measured by a thermocouple immersed in the fluid. (c) Time-course measurement of TEF under 60 V DC using the tensile-testing machine experiment setup shown in (b). Generated TEF, F⊥, was plotted as a function of time t. The force represented by the red line is the five-point moving average before and after the raw data shown in gray. (Image source: Springer Nature)

Of course, the true endpoint of this project was not just to explore these fluids but make something that at least initially appears potentially useful, such as an electric motor. To do this, they built a motor roughly analogous to a DC stepper motor by following three basic design rules (Figure 4):

1. The fundamental components should consist of three pairs of stators and two rotors.
2. The width of the rotor should be longer than that of the stator but shorter than the sum of the width of the stator and the space between stators.
3. The relationship between the total number of stators and rotors should be an integer multiple of 3:2.

Figure 4 The ferroelectric motor’s novel design followed three basic rules. (a) (Upper) Case of the width of a mover being shorter than that of the electrodes. (Lower) The case of the width of a mover being longer. (b) A fundamental configuration of electrodes for continuous movement. The number in the upper-left corner of each panel corresponds to the phases of the pulse shown at the bottom. (c) CAD designs and photographs of the rotor (bottom inset) and the stator (top inset). The position of the upper stator in the CAD designs is not the actual position for clarity. The outer diameter, each pole’s length, and thickness of the rotor are 18 mm, 4 mm, and 1 mm, respectively. The stator consists of three-layered electrodes (U, V, and W poles) with two insulating layers. The outer diameter, each pole’s length, and total thickness of the rotor are 28 mm, 4 mm, and 2.1 mm, respectively. The length of the overlapping part of the poles of the rotor and the stator is about 3.5 mm. The gap between the upper and lower stators is 2 mm. (d) External view of the assembled motor. (Image source: Springer Nature)

Their prototype ferroelectric motor consists of a 3-phase 24-pole stator with an 11.25° electrode angle and a 3.75° space angle between stators and a single-phase 16-pole rotor with a 12.5° electrode angle and a 10° space angle. It was driven with a 3-phase, 60-V square wave with a duty ratio of 33%.

Most electrostatic motors studied thus far required a high applied electric field of several 10–100 MV/m; in contrast, the ferroelectric motor rotated with an electric field as weak as 0.03 MV/m (here, 60 V/2 mm), which means that a driving voltage as low as one-thousandth of that figure could be used.

The most important advantage of this ferroelectric motor over ordinary electromagnetic motors is that it does not require a voltage to be applied to the rotor, which means that the rotor can be made of resin instead of metal, making it lightweight and reducing inertia. In addition, because the rotor does not need to be energized, mechanisms such as carbon brushes and slip rings are unnecessary.

The work is fully detailed in their paper “Huge transverse Maxwell stress in ferroelectric fluids and prototyping of new ferroelectric motors” published in Nature’s Communication Engineering (why there – I can’t say). It includes the associated deep-physics analysis as well as links to some “action” videos.

Do you think there’s a future for these electrostatic motors, or will real-world considerations hinder their advance? Or will they be like ferrofluids, and find uses far removed from their design objectives?

Sidebar: Ferroelectric fluids and ferrofluids

The history and development of ferroelectric fluids is a 100-year journey from an early 20th-century theoretical prediction culminating in 21st-century reality. In 1916, physicist Max Born predicted that if a fluid’s molecules possess a strong enough electric dipole, they would naturally form a spontaneously polar (ferroelectric) fluid that can withstand thermal fluctuations.

The concept of a polar, electric-field-responsive liquid was finally transformed into reality in 2017 when scientists experimentally produced the first stable ferroelectric nematic liquid crystals. They successfully synthesizing and identifies the elusive ferroelectric nematic phase in a highly polar rod-shaped molecular material (known in chemistry as RM734). This experimentally proved the existence of 3D fluids with stable, switchable macroscopic electric polarization. (See Science Advances, Development of ferroelectric nematic fluids with giant-ε dielectricity and nonlinear optical properties (2021).)

Ferroelectric fluids are easily confused with ferrofluids, but they are very different. Ferrofluids are colloidal suspensions of magnetic nanoparticles (like iron oxide) in a carrier oil and they respond to magnetic fields. They were developed by NASA’s Steve Papell in 1963 as a liquid rocket fuel that could be drawn toward a fuel pump in a weightless environment by applying a magnetic field. Although that application didn’t work out, these ferrofluids found other uses such as liquid seals around spinning drive shafts and in loudspeakers to remove heat from the voice coil while also passively damping the movement of the cone. In contrast, ferroelectric fluids (FNLCs) are pure or mixture-based 3D molecular fluids. They have spontaneous electric polarity and respond natively to electric fields.

—Bill Schweber is a degreed senior EE who has written three textbooks, hundreds of technical articles, opinion columns, and product features. Prior to becoming an author and editor, he spent his entire hands-on career on the analog side by working on power supplies, sensors and signal conditioning, and wired and wireless communication links. His work experience includes many years at Analog Devices in applications and marketing, and he also developed significant mechanical-engineering insight while designing control electronics for large materials-testing systems.

Related Content

• Electric motors, pneumatics combine for amazing robotics
• Linear thinking about motors
• Brushed motors: Still a contender after all these years

The post A ferroelectric-fluid motor may challenge magnetic-motor designs appeared first on EDN.

The Indian Ballistic Missile Defence (BMD) Programme introduced by Atal Bihari Vajpayee government following the Kargil War was developed by Defence Research and Development Organization (DRDO). It is designed to destroy both high-altitude and low- altitude incoming enemy missiles by employing a two-tier, multi-layered missile defence architecture. The objective of this system is to provide more than one opportunity to destroy an incoming missile before it reaches its target using multiple layers of detection, tracking, command-and-control, and interceptor missiles (or Anti-Ballistic Missiles).

India has successfully enhanced its indigenous missile defence capabilities after DRDO successfully demonstrated a series of flight tests conducted on June 10 and 11, 2026, which reinforce the ability of Ballistic Missile Defence (BMD) system to counter evolving long- range ballistic missile threats. The test comprised three consecutive flight trials of the Phase-2 BMD system in which interceptor missiles successfully detected, tracked, and neutralized the enemy missile attack for testing purposes. The trial also included the maiden flight test of the Naval Anti-Ship Missile Medium Range (NASM-MR), showcasing DRDO’s progress in both air and maritime defence systems.

India’s indigenous BMD architecture is designed for a multi-layered interception strategy where it can destroy enemy hostile missiles by operating at two distinct interception layers — outside the earth’s atmosphere and within Earth’s atmosphere. India is updating its defence system that can handle more complex threats such as hypersonic missiles and Intercontinental Ballistic Missiles (ICBs). The BMD system uses AD-1 and AD-2 which are advanced, high-speed interceptor missiles used to destroy long range threats travelling at extremely high speed and in different weather conditions.

Through these trial tests BMS introduced new defence advance technologies such as latest interceptor designed to address complex flight trajectories, advanced tracking radars to destroy enemy missiles, capabilities of AD-1 interceptor, and improvement in target tracking. As missile technologies continue to evolve, future BMD systems are expected to incorporate artificial intelligence, machine learning, and more capable interceptor technologies.

The post Indigenous BMD Programme Advances with Successful Multi-Layered Interceptor Trials appeared first on ELE Times.

Marquistech has selected Rohde & Schwarz to equip its conformance and EMI/EMC test lab in Noida, India, with various systems for GCF and PTCRB certification testing. The investment includes the R&S TS8980FTA-3A RF/RRM full type approval system, the CMX500 radio communication tester for protocol conformance, the R&S TS-LBS positioning test system for location based service testing and the R&S TS9982 and R&S TS9975 EMI/EMC test systems.

With this expanded setup, Marquistech has become the first fully equipped conformance test house in India for both certification programs. The lab, strategically located in the Delhi National Capital Region, is aimed at serving companies in the mobile, IoT and wireless module markets, at a time when India is gaining importance as an export focused electronics manufacturing location.

The newly installed systems from Rohde & Schwarz support legacy 4G as well as advanced 5G features, including non terrestrial networks (NTN) and mission-critical communications (MCX), and lead in numbers of validated test cases covered. Additionally, Rohde & Schwarz has provided regulatory testing capabilities for EMC and EMI at the site to enable abroad range of services offered. This helps the test house minimize costs and reduce reliance on outsourced testing. For customers, it reduces the time to complete a certification campaign.

Marquistech has been active for some time as a GCF field testing RTO. With the expansion of their site in the Delhi National Capital Region, the company has now extended its global operations to conformance testing. This adds a broader local test offering for device makers that need certification support during development and before market entry.

Prashant Jain, VP, Marquistech, said: “Our goal is to provide a globally competitive certification hub for GCF and PTCRB testing, delivering quality, flexibility and faster time-to-market. Together with Rohde & Schwarz, we are helping strengthen the global wireless certification ecosystem.”

The local support structure provided by Rohde & Schwarz was a decisive factor for Marquistech. Rohde & Schwarz operates a major development site nearby with integrated laboratories that cover the wireless product lifecycle for conformance solutions, supported by local engineering and application teams.

The post Rohde & Schwarz Supplies Conformance Test Systems to Marquistech for India’s First GCF RTO and PTCRB ATL Lab appeared first on ELE Times.

As industrial environments become more automated and connected, demand for Power over Ethernet is rising to enable industrial applications by delivering reliable power and data over a single cable, simplifying deployment and scalability. To offer an industrial-grade solution, Microchip Technology (Nasdaq: MCHP) has extended its broad range of single- and multi-port PoE solutions to include its PD-9601GCI Midspan, designed to meet the IEEE 802.3bt standard for industrial applications and their challenging environments.

“In a market where many existing networks don’t fully support PoE’s convenient single-cable deployment models, our industrial-grade PD-9601GCI midspan makes it easier for our customers to power their smart equipment in factories and industrial settings,” said Charlie Forni, corporate vice president of Microchip’s networking and connectivity business unit. “Additionally, our customers have the option to use our midspans as a private label powering option, enabling them to differentiate their products by offering a simpler integrated power solution.”

Microchip’s PD-9601GCI midspan stands out from its existing PC-9601GC single-port indoor PoE midspan because it’s industrial-grade and is designed to reduce the need for complex electrical work and additional power outlets, while delivering up to 90W of power and 10/100/1000 Mbps data rates over a single Ethernet cable.

The device offers features and capabilities that support reliable operation in remote or challenging factory and outdoor locations, minimizing downtime and support issues:

• Sealed, vibration-resistant metal enclosure that is Ingress Protection (IP)-rated: The IP rating is IP30.
• Extended operating temperature: Designed to sustain a temperature range of -40°C to 75°C.
• Extended power input options: Supports dual DC input in the range of 20V-60V.
• Enhanced industrial-grade surge protection: Helps protect against voltage spikes in industrial environments.
• Industrial mounting: Includes DIN rail, wall or panel mount options.
• Compatibility testing with industrial automation devices: Helps reduce integration and reliability issues
  for manufacturers.

Midspans are inserted after the network switch where they inject power onto an Ethernet line so it can deliver both power and data. These devices provide a convenient and cost-effective solution to deploy PoE in remote or challenging environments. Bundled with an IoT device, midspans enable manufacturers to offer a plug-and-play solution designed to support power delivery over the network.

 

 

The post Plug-and-Play 90W PoE Solution Streamlines Industrial IoT Deployments appeared first on ELE Times.

The US Department of War’s Economic Defense Unit (EDU), in partnership with the Office of the Under Secretary of War for Acquisition and Sustainment (OUSW(A&S)), has awarded $25m through the Industrial Base Fund to American Resources Corp to expand capacity at the Marion Advanced Technology Center refining campus in Indiana of its affiliated minority holding ReElement Technologies Corp (a refiner of rare-earth elements and other defense-critical minerals)...

🎓 Адаптаційні курси КПІ для першокурсників kpi пт, 07/17/2026 - 10:00

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Don't ask me, ts is on another whole level of abstract submitted by /u/andrew_is_myname [link] [comments]

Договір про співпрацю із Полтавським державним аграрним університетом kpi чт, 07/16/2026 - 18:45

🔗 Проєкт положення про систему забезпечення академічної доброчесності в Національному технічному університеті України «Київський політехнічний інститут імені Ігоря Сікорського» kpi чт, 07/16/2026 - 17:49