ASA 124th Meeting New Orleans 1992 October

4pEA13. Design of a low-cost ambient pressure acoustic test facility.

Mark S. Broding

Syntech Materials, Inc., P.O. Box 5242, Springfield, VA 22150

J. Scott Knight

J. S. Knight Consulting, Springfield, VA

The setup and operation of a low-cost acoustic test facility currently in use by Syntech Materials, Inc. is described. Transmission and reflection characteristics of bulk materials (in the form of test panels) are measured at ambient pressure and temperature at normal incidence from 10 through 100 kHz. Data collection is accomplished through standard low-cost devices controlled by a personal computer via GPIB link. Results of sample acoustic tests are presented and discussed. Few problems have been encountered during the system's first year of operation.