Thermal encoding using shape memory alloy. (2020)

• Record Type: Journal Article
• Authors: Manik, Raj; Behera, Ajit
• Is Part Of: Materials today. Volume 33:Part 8(2020)
• Page Start: 5709
• Page End: 5713
• Publication Date: 2020
• Subjects: Code generator -- Splitter -- Shaper -- Thermal encoder -- Pseudo-elasticity -- Transformation temperature; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.04.529
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: It is a noble system which explores the dual capabilities of a digital system and a Shape Memory Alloy to provide a unique security that is difficult to hack and is robust enough to provide a tougher level of security than the existing digital or mechanical locking devices. In a nutshell, the system comprises of 3 key modules namely, Code Generator, Splitter and the Shaper. The Code generator module works as an interface for the user interaction to set and enter the desired pass code. The pass code is then translated to a temperature using a proprietary algorithm to produce information about one or multiple temperatures (later on to be compared with SMA) and then passed through the Splitter module. The Shaper module reverse engineers the properties of a pre-trained shape memory alloy while it is heated to derive a mechanical temperature which triggers the effect of the very SMA at a specific point. The system validates the temperatures from both the Code Generator (digital) and Shaper (mechanical) and the Splitter compares for equality and thus allowing unlocking only if it passes the verification test. This opens up a completely unique way of security device based on a combination of digital and mechanical priorities never ever done before in the world. It has the potential to be used in high value security areas e.g. Defense and Banking to provide a higher level of protection of access rights.