A Study on Magnetostrictive Sensor for Detecting the Weld Defects

Abstract

Industries such as gas, oil, petrochemical, chemical, and electric power have generally employed for the operation and used to enlarge the equipment or structures that require a high capital investment. In order to meet these requirements, the industries are increasingly moved toward saving the experimental verifications and computer simulation. Therefore industries to reduce the maintenance costs without compromising operational safety have been forced on finding better and more efficient methods to inspect their equipment and structures. It was motivated to meet the industrial needs and to secure and maintain the institute's technical initiative and leadership in the development of this new and exciting technology. Also, the system with many sensors could be detected the weld defects, and was useful for real-time monitoring. This paper is focused on the development of the real-time non-contract monitoring system as an efficient tool for the experimental study of weld defects based on the relationship between the measured voltage and input parameters. The monitoring technology involves the use of Ms S (Magnetostrictive Sensors) for the generation and detection of the guided waves. The developed system was employed to the experimental study in order to fine the weld defects for steel object with artificial defects used in the welding field.

Influence of Lignin modification on PAN-Lignin copolymers as potential carbon fiber precursors

“…On a similar note, PH Kang and co-workers prepared homogenous PAN-lignin solutions and electrospun them into nanofiber mats. These mats were further cross-linked by using an incident electron beam and tested for thermal stability and morphological features[55]. Ozgur reports a study of PAN-lignin blends as partially bio based CF precursors using DMA to test mechanical properties, and SEM to observe the fine grain structure[56].…”