MUMBAI, India, Oct. 12 -- Intellectual Property India has published a patent application (202611047509 A) filed by Indian Institute Of Technology Kanpur on April 14, 2026, for A Shape Memory Alloy-Based Actuator For Detecting Objects On Buoyancy Induce Response.
Inventors include Raushan Kumar; Ruchira Kumar Pradhan; Shree Ram Pandey; and Bishakh Bhattacharya.
The application for the patent was published on October 09, 2026, under issue no. 41/2026.
Abstract: ABSTRACT A shape memory alloy-based actuator for detecting objects on buoyancy Induce response The present invention relates to underwater robotic surveillance and buoyancy regulation by a shape-memory-alloy-driven auxetic meta-structural actuator. The system comprises a transparent cylindrical case with annular support, a shape memory alloy spring and a mechanical bias spring arranged coaxially, and a guided cylindrical slider coupled to an expandable limb assembly forming a negative Poisson’s ratio structure. Actuation of the shape memory alloy spring varies the external volume to control buoyancy, enabling floating, sinking, and neutral positioning. A cable-driven mechanism converts linear motion into rotation of a camera module for 360° surveillance. The method includes controlled electrical actuation of the shape memory alloy spring with feedback-based regulation to achieve cyclic expansion and contraction for buoyancy modulation and synchronized camera rotation.
Disclaimer: Curated by HT Syndication.
