Teacher Insights: Know about how to choose the best MPPSC coaching institute  |  National Edu News: Swinburne University of Technology & IIT H launch the joint doctoral program  |  Policy Indications: India & Japan collaborations for innovations on Hydrogen based technologies  |  National Edu News: Education Minister addresses at the Annual Convocation of IIM Rohtak  |  Education Information: UPSC postpones tests and Interviews of some examinations  |  National Edu News: Piyush Goyal launches the Startup India Seed Fund Scheme  |  Teacher Insights: Are you Proficient in English?  |  National Edu News: National climate vulnerability assessment sees 8 states as highly vulnerable  |  National Edu News: Education minister e-launches long-lasting hygiene product DuroKea Series  |  National Edu News: Punjab’s new nutrient rich crop varieties can satisfy India's nutritional needs   |  Guest Column: Delicious Dhabas  |  International Edu News: 2D Perovskites for Solar Cells and LEDS  |  International Edu News: AI Model for Predicting Tsunami  |  International Edu News: Wearable Sweat Sensors on a Bandage  |  International Edu News: Smallest High Resolution Microscope  |  
August 30, 2019 Friday 10:54:16 AM IST

Harvesting energy from knee

Science Innovations

A group of American Institute of Physics researchers has developed a way to power small devices by walking.An energy harvester, attached to the wearer's knee, generates 1.6 microwatts of power while the wearer walks without any increase in effort. The energy is enough to power small electronics such as health monitoring equipment and GPS devices. 

The researchers used a special smart macrofibre material, which generates energy from any sort of bending it experiences, to create a slider-crank mechanism - similar to what drives a motor. The authors chose to attach the device to the knee due to the knee joint's large range of motion, compared to most other human joints. These harvesters can harvest energy directly from large deformations.


Due to the continuous back-and-forth motion the material will encounter when the wearer walks, every time the knee flexes, the device bends and generates electricity. This means the harvester can capture biomechanical energy through the natural motion of the human knee.This energy harvester could promote the development of self-powered wearable devices.


Comments