Deshpande, S. P., & Rao, M. D. (2014, June), Development of a Low-Cost Impedance Tube to Measure Acoustic Absorption and Transmission Loss of Materials  Paper presented at 2014 ASEE Annual Conference & Exposition, Indianapolis, Indiana. 10.18260/1-2--20308

\bibitem{asee_peer_20308}
  Deshpande, S. P., \& Rao, M. D. (2014, June), \emph{Development of a Low-Cost Impedance Tube to Measure Acoustic Absorption and Transmission Loss of Materials}
  Paper presented at 2014 ASEE Annual Conference \& Exposition, Indianapolis, Indiana.
  10.18260/1-2--20308

Satyajeet P. Deshpande and Mohan D. Rao.  "Development of a Low-Cost Impedance Tube to Measure Acoustic Absorption and Transmission Loss of Materials".  2014 ASEE Annual Conference & Exposition, Indianapolis, Indiana, 2014, June.  ASEE Conferences, 2014.  https://peer.asee.org/20308 Internet.  14 Dec, 2024

\bibitem{asee_peer_20308}
  Satyajeet P. Deshpande and Mohan D. Rao.
  "Development of a Low-Cost Impedance Tube to Measure Acoustic Absorption and Transmission Loss of Materials".
  \emph{2014 ASEE Annual Conference \& Exposition, Indianapolis, Indiana, 2014, June}.
  ASEE Conferences, 2014.
  https://peer.asee.org/20308 Internet.  14 Dec, 2024

@INPROCEEDINGS{asee_peer_20308
author = "Satyajeet P. Deshpande and Mohan D. Rao"
title = "Development of a Low-Cost Impedance Tube to Measure Acoustic Absorption and Transmission Loss of Materials"
booktitle = "2014 ASEE Annual Conference \& Exposition"
year = "2014"
month = "June"
address = "Indianapolis, Indiana"
publisher = "ASEE Conferences"
note = {https://peer.asee.org/20308}
number = {10.18260/1-2--20308}
}

TY  - CPAPER
AB  -                                                                         ASEE Annual conference, 2014                               DEVELOPMENT OF                          A LOW COST IMPEDANCE TUBE                      TO MEASURE ACOUSTIC ABSORPTION AND                        TRANSMISSION LOSS OF MATERIALS                         Satyajeet Deshpande 1 and Mohan D. Rao                     Tennessee Technological University, Cookeville, TN                                       ABSTRACTTraditional methods of measuring sound absorption coefficient and sound transmission loss of acousticmaterials and treatments are time-consuming and expensive. To overcome this limitation, normalincidence sound absorption and transmission loss measurement technique using an impedance tube wasdeveloped. Unfortunately this equipment is equally expensive. Hence efforts are taken to develop a cost-effective impedance tube for wider use especially for educational use in emerging countries. Animpedance tube capable of measure absorption coefficient and transmission loss is designed and builtunder a budget of $1500 ideal for educational institutions. This paper discusses the design, developmentand fabrication of the low cost impedance tube along with measurement results demonstrating itsaccuracy. Using a calibrated acoustic sample, data obtained from the low-cost impedance tube werecompared with those from a standard commercial tube with encouraging results. A parametric study wasconducted showing the effects of various parameters on the accuracy of the measured results. Theseinclude tube material, tube dimensions, frequency range, source transducer, pressure-microphones,sample and microphone holder, data acquisition and reduction technique. Based on these, design optionswere generated to meet the cost and functionality targets pre-assigned. A list of suggested parts andvendors is also included for anyone to custom-build the tube for educational use.1    Currently at Kolano and Saha Engineers, Inc. Waterford, MI
AU  - Satyajeet P. Deshpande
AU  - Mohan D. Rao
CY  - Indianapolis, Indiana
DA  - 2014/06/15
PB  - ASEE Conferences
TI  - Development of a Low-Cost Impedance Tube to Measure Acoustic Absorption and Transmission Loss of Materials
UR  - https://peer.asee.org/20308
DO  - 10.18260/1-2--20308
ER  -