Vyom Sachan
Welham Boys' School, Dehradun, Uttarakhand 248001, India
*Authors to whom correspondence should be addressed.
Received: 2021-9-15 / Accepted: 2021-10-26 / Published: 2022-5-19
DOI: https://doi.org/10.37906/isteamc.2022.2
Abstract The goal of the paper is to harvest energy through the flexing of a piezoelectric unit in a prosthetic limb. Depending upon the flex of the sensor, it produces a voltage output. To embed this in a forearm prosthetic, a piezoelectric sensor can be attached to the hinge joint. Hence, the more it moves, the more voltage output is produced. In this paper, a prosthetic limb is modeled as a physical pendulum. The experiment done includes a voltmeter, a physical pendulum, and a piezoelectric sensor attached to the axis. Due to the formula breakdown into a 2-parameter model, the chi-squared analysis on the formula is much simpler. Hence, the author could fit the model to the data and the best fit values were found.
Research Areas: STEM, Physics
Keywords: Energy harvesting, Piezoelectric sensor, Voltage output, Angle
