| Abstract [eng] |
This master’s thesis presents the development of a high-frequency vibration measurement system designed for real-time analysis of mechanical oscillations. The system utilizes a strain (load) sensor capable of measuring both dynamic vibrations and static loads. The analog signal is processed using a low-pass filter and digitized by a 24-bit delta-sigma ADC. The data is processed by an STM32H523 microcontroller based on the ARM Cortex-M33 core, with Fast Fourier Transform (FFT) calculations performed using the CMSIS-DSP library. The calculated frequency-domain data is transmitted in real time to a computer via a UART interface, where results from three sensors are visualized in the MATLAB environment. During the project, three four-layer printed circuit boards (PCBs) were designed, firmware was developed for the microcontroller, and experimental testing was conducted. The thesis consists of seven sections: introduction, analysis of vibration measurement principles, component overview, PCB design, software development, experimental study, and results analysis. The thesis comprises 68 pages, includes 53 figures, 3 tables, and references 21 literature sources. |
