PERIODIC MOTION ANALYSIS WITH FFT (FOURIER TRASFORMATION) BY EMPLOYING ARDUINO FOR DATA CAPTURING
FFT- Fourier transformation is a mathematical function which is use to convert a time signal data into frequency domain. Today i will share my experience of using Arduino for reading the data and further processing to getting the result in frequency domain, for further learning about the FFT follow the link Captured Data I have analyze a simple spring mass system. The property of the system is as follow. M = 2 Kg Spring stiffness K = 116 N/m we can find it natural frequency directly. f = (1/2*pi)*squareroot(K/M) f = 1.21 Hz Experiment setup is shown in the figure a weight of 2 Kg is hanged on the spring with the known stiffness. a MPU 6050 is attached on it with double sided tape. Initial displacement is provided to the weight and let the system to oscillate freely. Test Setup Analysis of the data perfectly align with the Theoretical results as shown in the graph below. With these results we are now become confident on our system and can further analy...