Analysis of Dual Semicircle Shape CSRR Sensor for Dent Detection on Tefon Coated Metal Surfaces

Ambika, A and Tharini, C and Ali, Tanweer (2021) Analysis of Dual Semicircle Shape CSRR Sensor for Dent Detection on Tefon Coated Metal Surfaces. Wireless Personal Communications, 118. pp. 2885-2896. ISSN 0929-6212

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A planar microstrip transmission line with dual semicircle complementary split-ring reso�nator (CSRR) is proposed as a high sensitivity RF sensor for detecting non-uniformity of the surface of the thin metal plate. In automotive industries, a surface deformity on light�weight aluminum sheet components is a serious problem. Due to the uneven surfaces of the parts, typical faws such as dents, dings, and waviness are not visible in the early stages of production. The defects, if ignored at an early stage, may lead to more production cost. So in this paper, we investigated the detection of faws on the thin aluminum sheet under vari�able load conditions. The dual ring semicircle CSRR loaded microstrip transmission line implemented on Tefon (thickness=0.08 mm) coated aluminum sheet (thickness=3 mm) which behave as an RF sensor. By varying the depth of the dent from 1 to 2.05 mm on the aluminum sheet, the sensor was able to fnd the maximum frequency shift (nearly 800 MHz frequency) as compared to faultless (without a dent) aluminum sheet, in both simulations as well as in measurement conditions. As compared to circular shape CSRR, the dual ring semicircle CSRR has a high bonding efect between the electric feld and metal sheet, which gives a more accurate prediction of dent portion on a thin metal sheet. This proposed compact RF sensor can be efectively utilized for crack avoidance in fber optic glasses, crack avoidance in the gas pipeline, aircraft plate etc. By comparing frequency shift of the proposed CSRR sensor is more accurate, even invisible non-uniformities can be easily detected and thus can be prevented at an early stage to avoid any damage.

Item Type: Article
Uncontrolled Keywords: Semicircle CSRR · Dent detection · RF planar sensor · Aluminum sheet,tefon coating
Subjects: Engineering > MIT Manipal > Electronics and Communication
Depositing User: MIT Library
Date Deposited: 14 Aug 2021 04:12
Last Modified: 14 Aug 2021 04:12

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