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Les résistances HT d'Exxelia Ohmcraft dans l'imagerie 3D dentaire

Afin de réaliser des images précises des dents et de la mâchoire d'un patient, les dentistes ont recours à l'imagerie 3D avancée des systèmes de tomographie par ordinateur à faisceau conique (CBCT). Pour garantir la fiabilité de ces images, les fabricants de systèmes CBCT ont fait appel aux résistan...

Afin de réaliser des images précises des dents et de la mâchoire d'un patient, les dentistes ont recours à l'imagerie 3D avancée des systèmes de tomographie par ordinateur à faisceau conique (CBCT). Pour garantir la fiabilité de ces images, les fabricants de systèmes CBCT ont fait appel aux résistances personnalisées à haute tension d'Exxelia Ohmcraft.

"De manière générale, les appareils à rayons X fonctionnent sous des tensions très élevées pour générer des images 3D claires et précises", déclare Eric Van Wormer, Vice-Président d'Exxelia Ohmcraft. "Comme les résistances d'Exxelia Ohmcraft, qu'elles soient en montage en surface ou traversant, offrent une précision et un contrôle inégalés, les fabricants de ce type de technologie se sont tournés vers nous pour garantir la fiabilité de leurs systèmes et la qualité des images qu'ils réalisent."

Les systèmes CBCT sont utilisés pour assister les dentistes dans diverses procédures, notamment la pose d'implants dentaires, le traitement canalaire, le traitement des dysfonctionnements de l'articulation temporo-mandibulaire (ATM) et la chirurgie dentaire.

La technologie d'Exxelia Ohmcraft utilise le système d'impression électronique breveté Micropen pour "imprimer" des lignes serpentines étroites et précises avec de l'encre résistive sur un substrat en céramique, produisant ainsi des résistances plus performantes sur une plus large gamme de valeurs et sur une plus petite surface que ne le permet la technologie conventionnelle des résistances à film.

Published on 17 Mar 2021 by Valentine Taffineau

Exxelia onboard Solar Orbiter

Solar Orbiter, a European Space Agency mission, was launched on an Atlas V rocket 411 (AV-087) from Space Launch Complex 41 at Cape Canaveral Air Force Station at 11:03 p.m. EST on Sunday, Feb. 9 2020. The satellite reached its first working orbit around the Sun, called “halo orbit” and is ready to begin its first scientific observation campaign. The campaign will last six months, during which time the 55 payloads will be turned on one by one and tested before being used to perform scientific observations. Solar Orbiter is a highly complex scientific laboratory. Deploying such a mission is a one-of-a-kind achievement! The mission will take years and is one of the most highly anticipated scientific experiments of our time. And you know what they say: your best work comes when you're up against the toughest challenges. Unfortunately, these challenges aren't only in labs, but also in space. To study the Sun and its activity like never before, scientists are sending a probe into orbit around it. Solar Orbiter will be facing temperatures of up to 500°C, which is usually not survivable for complex equipment. But do you know what's even more challenging than getting data from a 500°C hot solar environment? Getting that data with expensive equipment that doesn't work, because you don't have enough reliable components at your disposal! That's why we, at Exxelia, were so happy when we heard that thousands of our capacitors and magnetics were chosen by the European Space Agency to achieve this mission; we're talking about components that will keep working in those kinds of harsh environments! They will help scientists better understand energy flow and particle acceleration within our own solar system and beyond. Shockingly, the Sun is mostly a mystery. We have some understanding of its composition, but it's unclear how the phenomena we see happen. Solar Orbiter is going to help us get a better idea of what makes the Sun tick by taking some of the most detailed images and observations of our star ever taken. Among the instruments on Solar Orbiter are: a Wide-Angle Imager and a Coronal Imager. Each will provide high-resolution images—an order of magnitude higher than those captured by NASA's Solar Dynamics Observatory—and spectacular views of the Sun's polar regions. The Wide-Angle Imager will capture images in five wavelengths, while the Coronal Imager will use seven wavelengths to observe phenomena that affect the upper layers of the solar atmosphere, such as magnetic fields and plasma flows. Our capacitors and magnetics are critical for stabilizing and powering these instruments on their mission to explore our home star! They need to be able to perform in a very hostile environment with temperatures ranging from -150°C (-238°F) to 500°C (932°F). Temperatures will reach their highest during the closest flybys of the Sun—which will take place as close as 15 million kilometers (about 93 million miles) from its surface. Our space capacitors and magnetics are capable of withstanding such high temperatures. They'll even keep functioning in cryogenic conditions, as low as -150°C (-238°F). These components are also very durable, which makes them perfectly suited for this mission.     Choosing the right capacitors for such a mission was not easy. The requirements and technical constraints were very strict. We had also to support and select the materials that could handle the launch vibrations and the shock of the rocket launching phase, we also had to achieve a very long life and high reliability in order to succeed in the mission. This project proves that our EXXELIA components are incredibly reliable and have nothing to envy to other electronic components on the market. Several other tests have been conducted by ESA in this project such as solar radiation, thermal shock... Exxelia ESA QLP Products Onboard Solar Orbiter : 14,400 CNC chips ceramic capacitors 14,400 CEC chips ceramic capacitors 520 of our CNC stacks ceramic capacitors 470 SESI QPL Inductors 380 MSCI RF Inductors  287 ESA qualified CTC21/E Tantalum Capacitors 50 ESA Film Capacitors PM94

Inauguration EXXELIA Manufacturing site Morocco

We are thrilled to announce the inauguration of our brand new, modern, custom-built site in Morocco, a colossal 10,000 m2 industrial facility dedicated to electronic products. This state-of-the-art site is equipped with a 200 m2 clean room and is fully air-conditioned, setting a new standard in electronic manufacturing.     Features at a Glance: Industry 4.0 Orientation: Our modern plant follows the Hoshin method, embraces digital integration, and adopts lean principles. This ensures efficiency, precision, and adaptability in our manufacturing processes. Workplace Modernization: Our workshops are designed with the well-being of our teams in mind. We've modernized workstations, introduced new, more reliable, and productive equipment, creating clean, pleasant, and ergonomic environments. Green Surroundings: Easy access to a green environment enhances the overall workspace experience, promoting a positive atmosphere for innovation and collaboration.   Main Activities: Internal Subcontracting for French & US Sites: Our facility specializes in manufacturing a range of electronic components, including ceramic capacitors, electrolytic components, film products, stators, magnetic products, position sensors, and slip rings. Electronic Assembly for External Customers: We offer electronic assembly services for external customers, covering the winding of transformers and chokes, assembly of rotors and stators, wiring, and microwave micro-electronic assembly.   This step marks a significant expansion for Exxelia, solidifying our commitment to excellence and innovation in electronic manufacturing.    

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