This work presents the design, construction, and validation of a low-cost vibration table equipped with four load cells arranged at the corners of a square structure constructed of aluminum profiles. The system was designed to enable distributed measurement of dynamic forces on components subjected to vibration, with special emphasis on accessibility, modularity, and accuracy. A Raspberry Pi connected to HX711 amplifier modules was used for data acquisition, allowing load signals to be recorded in real time with a resolution suitable for experimental studies. System validation was carried out by operating a 3D printer placed on the platform for a 13-min print run, capturing over 30,000 samples per sensor. The results demonstrate the system’s ability to detect complex vibration patterns and its potential as a tool for structural analysis, experimental diagnostics, and academic training. The proposed design represents a viable alternative to commercial tables, adapted to engineering research and teaching environments.

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Design, Construction and Validation of a Vibration Table with Distributed Load Cells for Dynamic Measurement

  • Leonardo J. Valdivia,
  • Alejandro E. Rodríguez-Sánchez,
  • Mario Acevedo

摘要

This work presents the design, construction, and validation of a low-cost vibration table equipped with four load cells arranged at the corners of a square structure constructed of aluminum profiles. The system was designed to enable distributed measurement of dynamic forces on components subjected to vibration, with special emphasis on accessibility, modularity, and accuracy. A Raspberry Pi connected to HX711 amplifier modules was used for data acquisition, allowing load signals to be recorded in real time with a resolution suitable for experimental studies. System validation was carried out by operating a 3D printer placed on the platform for a 13-min print run, capturing over 30,000 samples per sensor. The results demonstrate the system’s ability to detect complex vibration patterns and its potential as a tool for structural analysis, experimental diagnostics, and academic training. The proposed design represents a viable alternative to commercial tables, adapted to engineering research and teaching environments.