Testing

As hospitals fill with wireless devices—from patient monitors to smartphones—radio frequency interference threatens medical device performance and patient safety. This article explores the critical testing methodologies, regulatory requirements, and risk management strategies manufacturers need to ensure their wireless medical devices work reliably in today's crowded spectrum environments.

As electromagnetic environments grow more complex, RADHAZ assessments have become critical for military safety. Radio frequency radiation can ignite fuel, trigger explosives, and harm personnel. This article explores the three primary hazard areas—HERP, HERO, and HERF—examining how assessments protect against dangers from both high-power radars and low-power transmitters in modern military operations.

Electrochemical Impedance Spectroscopy (EIS) offers powerful insights into battery performance without destructive testing. By applying AC current across frequencies and analyzing voltage responses through Nyquist plots, EIS reveals internal processes like charge transfer and diffusion, enabling better battery health monitoring and aging prediction.

Electric vehicles introduce complex EMC challenges as high-switching inverters and E-drives create electromagnetic interference affecting safety-critical ADAS systems. Traditional static testing at constant speeds is insufficient—dynamic EMC testing under realistic driving conditions is essential to properly characterize emissions and ensure compliance.

Why spend $1500+ on commercial ESD targets when you can build your own for under $100? This EMC lab's clever DIY solution uses high-voltage resistors and SMD components to create an IEC 61000-4-2 compliant target that rivals expensive commercial alternatives.

Overconfidence in basic ESD testing can create dangerous blind spots. Three case studies reveal how standard floor resistance tests miss critical system failures when mobile equipment loses electrical contact, exposing sensitive electronics to static damage despite apparent compliance.

Naval ships have lots of powerful radars and radios that create electromagnetic interference. Scientists studied how this interference leaks into protected rooms through wire holes, discovering new mathematical patterns that help predict when sensitive equipment might be damaged by electromagnetic waves.

Since the discovery of electromagnetic interference (EMI) in the early 1900s, the need for testing for radiated emissions continues to grow as products get more complicated. The time to test has also grown, and, in some cases, can take days to complete. The introduction of fast Fourier transform (FFT) technology into EMI receivers can greatly decrease the required testing time, but is it applicable for everyone?

Explore essential strategies for EMC testing of electric axles in automotive applications. This technical guide examines key challenges in achieving CISPR 25 compliance, from test bench design to managing metallic structures, while ensuring accurate and reproducible measurements for high-power e-drive systems.

Python and PiVISA are effective tools in facilitating electronic test automation. Here are some practical suggestions to help you apply Python and PyVISA in your testing automation efforts.