Abstract
In this paper, two different piezoelectric transducers—a ceramic piezoelectric, lead zirconate titanate (PZT), and a polymeric piezoelectric, polyvinylidene fluoride (PVDF)—were compared in terms of energy that could be harvested during locomotion activities. The transducers were placed into a tight suit in proximity of the main body joints. Initial testing was performed by placing the transducers on the neck, shoulder, elbow, wrist, hip, knee and ankle; then, five locomotion activities—walking, walking up and down stairs, jogging and running—were chosen for the tests. The values of the power output measured during the five activities were in the range 6 µW–74 µW using both transducers for each joint.
Highlights
Body motion energy harvesting (BMEH) means recovering energy from body movement
The results of the power output harvested from the transducers in this paper represent the power output generated by the five locomotion activities and, may represent an added value to the results found in the current scientific literature, which represent values of the power output generated only from individual body movements
Two piezoelectric transducers were placed inside a tight wearable suit in proximity to the main human body joints, neck, shoulder, elbow, wrist, hip, knee and ankle, respectively, in order to harvest energy generated by common body movements in the form of casual walking, walking down and up stairs, jogging and running
Summary
Body motion energy harvesting (BMEH) means recovering energy from body movement. BMEH has been the object of study by researchers from around the world for the past twenty years.Starner [1], who is considered one of the first researchers who studied energy harvesting from human motion, explored the possibility of recovering the energy produced by body movements, during everyday activities. Body motion energy harvesting (BMEH) means recovering energy from body movement. BMEH has been the object of study by researchers from around the world for the past twenty years. Starner [1], who is considered one of the first researchers who studied energy harvesting from human motion, explored the possibility of recovering the energy produced by body movements, during everyday activities. He pointed out that human beings produce the highest amount of energy during walking. Shenck and Paradiso [2] developed an energy harvesting system, mounted on the shoes, that enables one to power a wide range of body-worn devices. Gonzalez et al [3] and
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