A microphone phased array machinery fault diagnostic system is proposed. In this system, a microphone phased array is positioned such as to have a direct line of sight to the machine to be monitored. The microphone signals are recorded simultaneously and used to scan or beamform over a grid… More

The objective of this effort is to develop a remote acoustics-based system to detect rotating equipment health status. The goal is an automated acoustic monitoring system that includes the necessary filtering/data manipulation techniques and expert system/classification/anomaly detection algorithms… More

AVEC proposes an innovative concept for the evaluation of human response studies to sonic booms inside realistic structures. The approach proposed is to simulate the distributed boom load on the structure using an array of discrete forces. The forces are applied sequentially making the approach… More

DESCRIPTION (provided by applicant): This proposal targets a specific mission of NIOSH and the current SBIR solicitation: hearing loss prevention for mine workers. The main objective of this work is to reduce the noise radiated by Continuous Miners (CM). Since CMs are responsible for about 30% of… More