Latest In Depth Technology News

NASA selects NI SC Express for accuracy and flexibility in new data acquisition system

NASA has used NI SC Express and PXI hardware to create an advanced, distributed and flexible data acquisition (DAQ) system to meet the challenge of replacing legacy NEFF equipment in one of its largest human-rated environmental chambers. The data acquisition system is capable of accurately synchronising and measuring more than 500 analogue channels distributed throughout the chamber, without the need for additional external signal conditioning. "For the first time, NASA will no longer need the custom signal conditioning equipment in addition to its measurement hardware. With NI SC Express hardware, NASA can achieve the ±3°F end-to-end accuracy requirements for thermocouples with commercial off-the-shelf technology," said James Dean, Jacobs Technology.

A power limiter using a load switch

Constant current limiting circuits are commonplace, but sometimes a constant power limiting function is desired instead. This can be because downstream loads, like DC/DC converters, present a constant power load to their supply voltage, as delivered by the upstream converter. If the supply voltage to the DC/DC converter load exhibits significant tolerance, then a simple current limit may not deliver enough power to the load under all the voltage conditions. Setting a constant current limit to deliver the required power during a low supply voltage condition would result in greater power being demanded at the higher supply voltages during an overload condition. This article shows how to make an approximate constant power limiter.

Communicating data in the IoT

The Internet of Things is evolving to provide greater intelligence at the node, converting raw data into smart information. With less data to communicate, it becomes more cost-effective to integrate low power RF transceivers into the node module. Certification to wireless protocol standards ensures interoperability and the emergence of open tools will make support for these standards less onerous to developers.

Half-bridge motor drivers save time

A family of NovalithIC components from Infineon integrates the control chip and MOSFETs into a single component. Rutronik expects this to bring a new level of performance to integrated and protected motor drivers.

Pocket sized avionics computer meets industry’s SWaP needs

The aerospace sector is driven by a four letter acronym – SWaP; written in long hand, it translates to size, weight and power. That’s no real surprise; if you can make aircraft that are lighter, they will be – at least, in theory – more fuel efficient. And if you can make the electronics content smaller and less power hungry, that will also contribute to the overall savings.

Five tips for developing secure android applications

Android now commands 76% of the smartphone market in the EU5 (Germany, Great Britain, France, Italy, and Spain), 67% in the US and nearly 80% in China – according to latest figures from Kantor World Panel. With such numbers, it’s no wonder the Android application development gold rush is continuing with nearly a quarter of a million apps added to Google Play so far in 2016. That’s an average of 1379 apps every day. However, with Accessibility Clickjacking, Stagefright, Triada and other malware among the growing list of Android exploits, security should be at top of developers’ priority list.

Catalyst brings together engineers and researchers in Northern Ireland

The Northern Ireland Science Park, recently rebranded Catalyst, brings together engineers and researchers to create a community of innovators. The Northern Ireland Science Park is seen by many as an unqualified success for the Northern Ireland economy. Recently rebranded Catalyst, new plans have been unveiled with the aim of investing a further£100million to drive innovation and technology to support growth in the region.

Enabling robust data communications within a high voltage BMS

The primary purpose of the battery management system (BMS) is achieving reliability, performance and longevity of battery packs. As part of this, the battery management electronics measures each cell voltage and transmits this information to a central processor. For high voltage battery strings – such as is typical for automotive drivetrains –a modular distributed pack is an attractive choice. Battery modules can serve as the basic building block for multiple pack designs. Modules also allow for optimal weight distribution and maximum use of available space. The biggest challenge is the datalink required to operate the pack as a single unit.

New technologies widen touchscreen opportunities

A quiet revolution is taking place in the projected capacitive touchscreen market. Rapid industry developments are delivering touchscreens which are thinner, higher performance, more reliable and lower cost. The impetus behind many of these developments is the fact that indium tin oxide (ITO), the long standing conductive material of choice for phone and tablet touchscreens, has limitations and consequently is being superseded by alternative materials. ITO has never been widely used in large format AV and kiosk applications, but some of the technologies that are being developed to replace it could.

As the IoT unfolds, classical EDA design flows will need to change

For the past 20 years, the rhetoric of integrated circuit design has been one of increasing exclusivity, despite the falling cost of transistors with each jump in process node. The rise in mask and software tool costs over those same generations has forced many would-be chipmakers to settle for off the shelf microcontrollers and programmable logic.

Subscribe to our Newsletter

Most popular