Rancang Bangun Sensor Piezoelektrik sebagai Pembangkit Listrik pada Sepatu

Abstract

This research aims to determine the influence of loading, velocity, and configuration of the placement of piezoelectric sensor positions on the output voltage generated by the circuit Piezoelectric is a material that can generate electrical energy when subjected to mechanical pressure and strain. One common application of piezoelectric is utilizing foot pads as a source of pressure to generate voltage. Shoes have become one of the suitable mediums for the application of piezoelectric sensors to generate voltage, as humans are constantly active in everyday life, such as walking or running, providing a source of pressure that can be converted into electrical energy. The variables in this study are the user's body weight, the walking speed of the shoe wearer, and the placement of the piezoelectric position in the shoe. The placement of the piezoelectric position consists of 4 designs. Design 1 positions the piezoelectric at the top back of the shoe sole, design 2 positions the piezoelectric at the bottom back of the shoe sole, design 3 positions the piezoelectric at the top and bottom back of the shoe sole, and design 4 positions the piezoelectric at the top and bottom front of the shoe sole. The weight variable testing is performed with repeated steps 10 times for each existing design, and the speed variable testing is conducted by measuring the voltage increase on the capacitor. From the test results and data analysis, it can be concluded that the variables of body weight, speed, and placement of the piezoelectric position affect the output voltage of the prototype. The highest voltage recorded was 7.92 V. obtained during the ruming condition with a body weight of 76-80 kg using design 4.