Assessing IEMI Vulnerabilities in MEMS Barometers: A Comparative Approach

As the Internet of Things (IoT) expands, sensors play a crucial role in collecting and transmitting vital data across various domains. However, their susceptibility to Intentional Electromagnetic Interference (IEMI) raises significant concerns. This paper investigates the vulnerabilities of barometric sensors to IEMI. Utilizing a methodology similar to previous studies, measurements were conducted using Continuous Wave (CW) and pulse signals to assess sensor behavior under IEMI. The findings reveal differences in susceptibility between the studied barometers highlighting distinct vulnerabilities and responses to electromagnetic interference. Specifically, variations in temperature and pressure readings, along with system crashes induced by IEMI, were observed. Additionally, potential coupling paths on PCBs are discussed. This study underscores the importance of tailored mitigation strategies for sensor-based systems.