Monitoring body weight changes during a fall with a system created with a potentiometric sensor

Abstract

Sensors are one of the most important parts of modern technology, which provides data recording and conversion into digital signals. Within the framework of this research, an innovative SMART dynamometer was created, which is used to study the change in weight of the body during the fall process. The goal of the research was to create a device that would accurately analyze the effects of forces, acceleration and air resistance during the fall process. SMART dynamometer is built on a potentiometric sensor, which allows for the acquisition of quantitative data from the fall process and their visualization. SMART dynamometer consists of a spring, potentiometer, microcontroller and Bluetooth module. The potentiometer converts the force into an electrical signal, which is processed by the microcontroller and displayed in Newtons. The data is visualized using the Visual Basic program. The data obtained from the fall of the SMART dynamometer from a certain height show that the body retains its weight at the first stage due to inertia, and after a certain time the weight becomes equal to 0. The results of the experiment were successfully visualized in graphical form. This study showed that the SMART dynamometer can be used to solve fundamental and practical problems, which significantly determines the prospects for its widespread use.