fieldid E-Thesis & Research สถาบันเทคโนโลยีไทย-ญี่ปุ่น
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บทคัดย่อ
A LOW-COST AIR LEAKAGE MONITORING TECHNIQUE FOR INDUSTRIAL COMPRESSED AIR PIPING SYSTEM USING ACOUSTIC EMISSION SENSOR : This thesis presents Non-Destructive Inspection (NDI) of industrial compressed air piping system using Acoustic Emission (AE) sensing technique. The purpose of this paper is to implement a cost-effective AE sensing system for industrial application where a single AE sensor is realized for signal characterizations through Fast-Fourier Transform (FFT) algorithm. The experiment utilizes a steel pipeline with a diameter of 0.5 inches to model the industrial compressed air pipelines, completely including a 90o-Degree Elbow (ELL), a T-Shape Elbow (TEE), and blank-end. The air compressor with an electric regulator provides air pressure with four cases, i.e. 4 to 6 Bars. The AE sensor is attached to various points on the steel pipeline using grease. The AE signal is amplified with 20 dB prior to an analysisin Labview through National Instrument (NI) DAQ board. The signal characterization was performed through a magnitude in frequency response diagram. The results reveal that the AE signal with no-leak and leak conditions can be inspected accurately. The flaw signatures at different source of leakage can also be observed. This paper presents an alternative potential for a cost-effective AE characterization methods in industrial applications.
ผู้แต่ง
Kittipob Aurreethum
ประเภทสิ่งพิมพ์
วิทยานิพนธ์ (MET) 2015
ปีที่พิมพ์
1
เลขหน้า
41 p
หัวเรื่อง
Engineering Technology--Thesis
หัวเรื่อง
Thai-Nichi Institute of Technology.Engineering Technology--Thesis
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