Электровакуумные геттеры. Общие положения, классификация, первые газопоглотители

Рассмотрев газопоглощение и газовыделение электровакуумных материалов [1], мы пришли к неминуемому и неутешительному выводу: без большой работы по очистке и извлечению газов из металлов, стекла, слюды и керамики в радиолампах, срок жизни готовых приборов будет весьма недолгим, а параметры неутешительными. Специальный же элемент в лампе — газопоглотитель, иначе геттер, появляющиеся нежелательные газы связывает, существенно продлевая жизнь электровакуумным приборам (ЭВП) и стабилизируя их электрические характеристики. Геттер, в сущности являясь местным миниатюрным одноразовым высоковакуумным насосом, позволяет обойтись при изготовлении массовых ламп их быстрой и сравнительно неглубокой откачкой, радикально снижая стоимость производства и цену готовых приборов. Так как же работает геттер, какие они бывают, что за геттеры...

Compact, fanless DIN-Rail Intel Core Ultra 5 235U/7 265U industrial PC targets AMR, robotics, and computer vision

ASUS IoT PE1000U is a compact (160 x 110 x 63 mm) fanless DIN-rail industrial Edge AI PC powered by an Intel Core Ultra 5 235U/ 7 265U (Series 2) processor and designed for AMR (Autonomous Mobile Robots), robotics, and computer vision applications. Housed in a fanless, MIL-STD-810H-rated, rugged IP40-rated chassis, the PE1000U supports SO-DIMM DDR5 memory, SATA and NVMe storage, features two 2.5GbE RJ45 ports, four USB ports, four COM ports, onboard CAN Bus and DIO interfaces, as well as DisplayPort and HDMI outputs for dual 4K display setups for HMI or machine-vision monitoring. As an industrial computer, it...

$199+ M5Stack AI Pyramid Computing Box Linux AI mini PC is based on Axera AX8850 SoC

M5Stack has just launched the “AI Pyramid Computer Box” AI mini PC powered by an Axera AX8850 octa-core Cortex-A55 SoC with a 24 TOPS NPU and featuring an unusual design since it’s housed in a pyramidal enclosure. The mini PC features 4GB or 8GB of RAM, 32GB eMMC flash, a microSD card slot, two HDMI 2.0 ports (see specs for details), a 4-mic array, a built-in speaker, two Gigabit Ethernet ports, four USB 3.2 ports, and two USB-C ports for data and power. It serves as a desktop-grade Edge AI computing platform for systems such as AI vision gateways, smart...

Оживляем загадочный домофон с резистивным ключом

Приветствую всех!

Обычно, когда я рассказываю про тот или иной домофон, я стараюсь найти максимум информации о нём: от истории его создания до руководства пользователя или даже схем. Но только не в этом случае. Всё, что известно про данный экземпляр, это то, что устанавливался он в Москве в количестве больше одного.

Спустя несколько лет поисков я таки смог найти в коллекцию такой девайс. И, как оказалось, он был намного сложнее, чем я мог себе представить...

Maca 2 enables high-power wireless connectivity for UAV and robotic systems

8devices has previewed the Maca 2, a compact, high-power data radio for long-range wireless communication in drone, robotics, and industrial systems. Designed and manufactured in Europe, the platform is NDAA and TAA compliant and integrates multiple interfaces for range-focused deployments. The system is built on Qualcomm’s QCS405 system-on-chip, featuring a 650 MHz 24Kc MIPS processor […]

Axera AX8850 edge platform arrives in a pyramid-style design

M5Stack introduced today an embedded platform with an unusual pyramid-shaped edge computing system built around the Axera AX8850 system-on-chip. Two models are offered for local AI inference workloads as well as applications that require multimedia processing and dual Ethernet connectivity. Both systems are based on the Axera AX8850 SoC, which integrates an octa-core Arm Cortex-A55 […]

Olimex HoT aims to be lightweight, easier-to-use alternative to Home Assistant

Olimex HoT (Home of Things) is a lightweight Smart Home solution designed to run on low-end hardware (128MB RAM, 128MB flash) and interface with nodes running ESPHome. It can serve as an easier-to-use alternative for people who don’t need all the bells and whistles provided by powerful home automation frameworks such as Home Assistant or OpenHAB. Home Assistant open-source home automation software is great, but it requires a system with at least 2GB of RAM, and 4GB of RAM is often recommended for most users. There’s also a steep learning curve. This is what Tsvetan Usunov, Olimex CEO, realized last...

Review of XIAO ePaper DIY Kit EE02 13.3-inch color E-Ink display with SenseCraft HMI and Arduino

Seeed Studio has sent us a sample of the XIAO ePaper DIY Kit EE02 for review. The kit is comprised of an ESP32-S3 board driving a 13.3-inch Spectra 6 color E-Ink display with 1600 x 1200 resolution. It supports Wi-Fi and Bluetooth 5.0 (LE) wireless connectivity, and features a USB Type-C port for power and programming, a battery connector with an on/off power switch, a built-in charging circuit, a Reset button, and three user buttons. In this review, we will test the XIAO ePaper DIY Kit EE02 with the SenseCraft HMI platform and the Arduino IDE. But first, let’s go...

FOSDEM 2026 – the biggest Open Source Hardware and Software event in Europe

FOSDEM, the largest open hardware and open software conference, took place last weekend in Brussels. More than 8,000 enthusiasts from all over the world gathered to discuss their favorite technologies and meet friends. On Saturday, we ran a full-day workshop. We started at 8:30, and when we arrived at the room there was already a […]

Raspberry Pi 4 dual RAM variant introduced to mitigate RAM price increases and supply challenges

Desperate times call for desperate measures. Raspberry Pi has decided to introduce a dual RAM variant of the Raspberry Pi 4 to allow DRAM supply chain flexibility along with manufacturing process improvement using intrusive reflow soldering. As you may remember, Raspberry Pi first increased the price of most Raspberry Pi 4/5 boards last December while launching the Raspberry Pi 5 1GB RAM to offer a $45 option. At the end of last month, we noted broad market price adjustments due to not only RAM prices, but also storage devices, SoCs, and other components. A few days ago, Raspberry Pi had...