TY - JFULL AU - Priyanka Guin and Dibyendu Chatterjee and Arijit Roy PY - 2017/7/ TI - Development of Highly Sensitive System for Measurement and Monitoring of Small Impacts T2 - International Journal of Electronics and Communication Engineering SP - 759 EP - 766 VL - 11 SN - 1307-6892 UR - https://publications.waset.org/pdf/10007852 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 126, 2017 N2 - Developing electronic system for detecting low energy impacts using open source hardware such as Arduino is challenging. A highly efficient loadcell is designed and fabricated. A commercial polyvinylidene fluoride (PVDF) piezoelectric film is used as primary sensor for sensing small impacts. Without modifying hardware, the Arduino board is configured by programming to capture the signal from the film sensor with a resolution better than 1.1 mV. By our system, impact energy as low as 1.8 µJ (corresponds to impact force of 39.9 mN) is reliably and monitored. In the linear zone, sensitivity of the system found to be as high as 20.7 kV/J or 3.3 V/N with a measurement frequency of 500 Hz. The various characteristics such as linearity, hysteresis, repeatability and spectrum analysis are discussed. After calibration, measurements of unknown impact energy and impact force are investigated and results are found to agree well. ER -