Case study on water based cellulose couplant in contact type ultrasonic testing

Shivamurthy, B and Krishnamurthy, . and Sachidanada, H. K. (2018) Case study on water based cellulose couplant in contact type ultrasonic testing. In: International Conference on Research in Mechanical Engineering Sciences, 21/12/2017, MIT, Manipal.

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Abstract

In this paper the ultrasonic test performance of water based Methylcellulose couplant on steel is reported. The couplant used in the ultrasonic testing has an influence on the amplitude of the pulse echosignal. The ultrasonic energy which is transmitted from the transducer to the test material, through the couplant which is present in the interface. The amplitudes of back wall echo increases with increasing acoustic impedance of the couplant. In this research work couplant was prepared by using 0 to 50g of methylcellulose in steps of 10g in 250 ml of water. All five types of water based methylcellulose couplant were used for testing a standard stainless steel calibration U2 block. The effect on the amplitudes of backwall echoes was studied and best possible combination of water and methylcellulose are reported

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Couplant, Amplitude, Ultrasonic Testing, Methylcellulose
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 14 Feb 2018 10:08
Last Modified: 14 Feb 2018 10:08
URI: http://eprints.manipal.edu/id/eprint/150580

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