Comparative Analysis of Acceleration Sensors for Precision Measurement Applications

This study evaluates five acceleration sensors to identify the most suitable options for road surface vibration monitoring applications. Measurements were conducted using a specially designed test setup simulating realistic vibrations at 5 Hertz, employing a distributed data acquisition system with synchronized sensor pairs. The analysis encompassed signal preprocessing, frequency analysis, and noise evaluation of the LIS2DS12, IIS3DHHC, ADXL354, SI1003, and ADXL355 sensors. Performance assessment included frequency response accuracy, signal-to-noise ratio in both time and frequency domains, power consumption, and system integration complexity. Results showed that the SI1003 and ADXL354 achieved the highest precision with frequency-domain signal-to-noise ratio values exceeding 50 decibels, while consuming significantly more power of 91 milliwatts and 514.8 microwatts respectively. The IIS3DHHC and ADXL355 demonstrated balanced performance with signal-to-noise ratio values above 45 decibels and moderate power consumption, making them suitable for autonomous monitoring applications. Power consumption varied by two orders of magnitude across the sensor range, establishing critical trade-offs for practical deployments. These findings guide the selection of optimal acceleration sensors for specific applications, improving the reliability and efficiency of road monitoring systems while considering power constraints and economic factors.