Researchers at the Indian Institute of Technology have developed a new self-powered sensor that could revolutionize decision-making in sports like boxing and cricket. Detailed in the journal ACS Applied Nano Materials, this hybrid nanogenerator sensor combines triboelectric and piezoelectric technologies to detect and analyze physical contact during gameplay and training sessions.​

The sensor utilizes lithium-modified zinc titanium oxide nanofibers layered with copper and specialized films to create a device capable of converting mechanical energy into electrical signals. When attached to cricket equipment, such as bats and wickets, the sensor detects ball impacts, providing data on swing accuracy and power with a rapid response time of approximately 0.02 seconds. In boxing applications, multiple sensors affixed to a punching bag can differentiate between six types of punches and measure their speed, offering valuable feedback for athletes and coaches.​

This advancement addresses the need for compact, cost-effective, and self-sustaining sensors in sports, potentially reducing human error in officiating and enhancing training methodologies. The research received funding from the Defense Research Development Organization (DRDO).​

For more information, refer to the original study: “Piezo/Triboelectric Nanogenerator from Lithium-Modified Zinc Titanium Oxide Nanofibers to Monitor Contact in Sports” published in ACS Applied Nano Materials on February 2, 2023.