A comparative study of ultrasonic contact and immersion method for dimensional measurements

K Yadav, S Yadav, PK Dubey - MAPAN, 2021 - Springer
Ultrasonic testing (UT) is one of the most widely used techniques for non-destructive testing.
This is an effective method to provide information of the test material like dimension …

Direct measurement of acoustic impedance in liquids by a new pulse echo technique

D Joshi, D Bhatnager, A Kumar, R Gupta - Mapan, 2009 - Springer
For the first time a novel experimental technique has been used for direct evaluation of
acoustic impedance of liquids. Till date researchers have been using ultrasonic velocity and …

Pulse-echo method cannot measure wave attenuation accurately

B Pal - Ultrasonics, 2015 - Elsevier
A number of techniques with different degrees of accuracies have been devised for the
measurement of acoustic wave attenuation in solids and liquids. Still, a wide variation is …

Metrological investigation and calibration of reference standard block for ultrasonic non-destructive testing

K Yadav, S Yadav, PK Dubey - Metrology and measurement …, 2022 - journals.pan.pl
Abstract Ultrasonic Non-Destructive Testing (NDT) is a powerful tool used for testing,
verification, and inspection of material, especially for quality control and assurance. The key …

Improved ultrasonic interferometer technique for propagation velocity and attenuation measurement in liquids

S Sharma, UK Mishra, S Yadav… - Review of Scientific …, 2019 - pubs.aip.org
Propagation velocity and attenuation are the two basic parameters used for the ultrasonic
investigations of liquids. An ultrasonic interferometer is a widely used tool as a cost effective …

Design of Low Cost Broadband Ultrasonic Pulser–Receiver

K Sharma, S Singh, PK Dubey - MAPAN, 2017 - Springer
Determination of ultrasonic propagation velocity in materials provides an insight into their
intrinsic and extrinsic properties. The American National Standard, E-494–95 describes an …

Investigation of Ultrasonic Velocity and Transmission Losses in Graphite Rods Based on Numerical Simulation and Experiment

M Li, J He - Applied Sciences, 2023 - mdpi.com
The depth of electrodes inserted into the charge plays a vital role in controlling the
submerged arc furnace. Therefore, we used ultrasound waves reflected from the electrode …

Sensitivity enhancement of concurrent technique of acoustic impedance measurement

D Joshi, A Kumar, R Gupta, S Yadav - Mapan, 2013 - Springer
Measurement of acoustic impedance requires both the measurement of ultrasonic velocity
as well as density. The present work is an extension of our previous novel method reported …

Four voltmeter vector impedance meter based on virtual instrumentation

A Zekry, A Ibrahim, A Atallah, M Abouelatta, A Shaker - MAPAN, 2016 - Springer
In this paper, a digital vector impedance half-bridge meter based on virtual instruments is
designed, implemented and tested. Here, not only the accuracy of the magnitude of the …

Fourier transform ultrasound spectroscopy for the determination of wave propagation parameters

B Pal - Ultrasonics, 2017 - Elsevier
The reported results for ultrasonic wave attenuation constant (α) in pure water show
noticeable inconsistency in magnitude. A “Propagating-Wave” model analysis of the most …