Small Business Innovation Research/Small Business Tech Transfer

Energy Based Acoustic Measurement Senors, Phase II

Completed Technology Project
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Project Description

This research focuses on fully developing energy density sensors that will yield a significant benefit both for measurements of interest to NASA, as well as for general acoustic measurements. Previous research has developed prototype energy density sensors. The Phase I research focused on developing effective calibration techniques for these probes, testing and validating the probes to identify the most effective design, developing a sofware interface to facilitate user-friendly data acquisition, and developing software to measure acoustic directivity and sound power using the energy sensors. Phase II research objectives extend the use of these sensors to measure source directivity and sound power. Energy propagation will be determined from these measurements. A major Phase II focus will be the development of a high-temperature, high pressure design for the energy density sensor, as well as investigating nonlinear effects on these energy-based measurements. NASA applications of the technology include characterizing radiation from rocket plumes to better understand the mechanisms involved and to match numerical codes. Non-Nasa applications are many, including such tasks as in-situ measurements of sound, power and radiation characteristics of sources.

Organizational Responsibility

Responsible Mission Directorate
Space Technology Mission Directorate (STMD)
Responsible Program
Small Business Innovation Research/Small Business Tech Transfer (SBIR/STTR)
Lead Organization
Stennis Space Center (SSC)

Project Duration

Start: 2006-07-31
End: 2008-07-31

Partner Organizations

Stennis Space Center
Lead Organization
NASA Center
STITechnologies, Inc.
Supporting Organization
Industry

Project Contacts

Program Director
Program Manager

Primary U.S. Work Locations

Mississippi
New York

Technology Area

Primary Technology Area:

Human Health, Life Support, and Habitation Systems/

06.5 Radiation/

06.5.5 Monitoring Technology

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