Test & Measurement - September 2022

Test strategies to track hypersonic threats…overcoming challenges of EV battery and electric aircraft testing…an innovative way to measure the thermal properties of materials. These are just a few of the technologies you'll read about in this compendium of recent articles chosen by the editors of Tech Briefs and Aerospace & Defense Technology.
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Overview
The September 2022 Special Report on Test & Measurement covers a range of innovative technologies and strategies aimed at addressing contemporary challenges in various fields, particularly in aerospace and electric vehicle (EV) development.
One of the key features of the report is the exploration of hypersonic threats. Hypersonic vehicles, which travel at speeds exceeding Mach 5, present unique challenges for radar engineers due to their unpredictable flight paths. The report emphasizes the need for advanced radar systems that can provide comprehensive coverage to track these high-speed vehicles effectively. It discusses the collaborative efforts required among engineers to develop novel solutions and testing methodologies to counter these evolving threats.
Another significant topic is the vibration testing of NASA's X-57 Maxwell, the agency's first all-electric X-plane. The report details how engineers conducted rigorous vibration tests to ensure the aircraft's designs are both energy-efficient and safe for flight. This testing is crucial as it helps validate the performance of new technologies in electric aviation, which is a growing area of interest for sustainable transportation.
The report also addresses the transition to electric vehicles, highlighting the critical need for testing and verification of EV battery packs and electric motor powertrains (e-axles). As the automotive industry shifts from internal combustion engines to electric systems, the performance and efficiency of these components become paramount. The report outlines the complexity of EV battery systems, which include advanced wiring and battery management systems (BMS) that facilitate efficient power storage and movement. It underscores the importance of rigorous testing to ensure these systems meet safety and performance standards.
In addition to these features, the report includes application briefs on machine condition monitoring and flow measurement in smart medical inhalers. Machine condition monitoring is essential for maintaining operational efficiency in factories, while flow measurement is critical for ensuring the effectiveness of inhalers used in medical treatments. These application briefs illustrate the diverse applications of measurement technologies across different industries.
The report also presents several technical briefs, including advancements in optical microscopy for measuring microdroplets, which are relevant in various fields such as meteorology and inkjet printing. The National Institute of Standards and Technology (NIST) has made significant improvements in this area, enhancing the ability to measure tiny liquid droplets accurately.
Overall, the September 2022 Special Report on Test & Measurement provides a comprehensive overview of the latest advancements and challenges in testing technologies. It highlights the importance of innovation and collaboration in developing solutions that address the demands of modern engineering, particularly in the realms of aerospace and electric vehicles. The report serves as a valuable resource for professionals in the field, offering insights into the future of testing and measurement technologies.

