directivity index

directivity index

Download Acoustical Society of America Standards

The value in dB of ten times the common logarithm of the directivity factor. The directivity factor is the ratio of the sound intensity produced by a test transducer on a specific axis to that of a point source that is putting out the same acoustic power. Since the specific axis is usually one of maximum radiation, the DI in usually greater than zero.
The difference between sound pressure level in any given direction in the acoustic far field and the average sound pressure level in that field.
Source: http://www.owenscorning.com/around/sound/glossary.asp

<Navigation>

<Index>

Acoustics
Agriculture
Anthropology
Archaeology
Architecture
Biology
Biotechnology
Cancer
Chemistry
Composers
Dance
Electronics
Environment
Fine Art
Geology
Invertebrate
Plant
Political Science
Psychology
Scientists
Sociology

<Top Level>

WebRef.org
About Us
Copyright Notice
Privacy Statement

Download IEC standards, International Electrotechnical Commission standards.

All Sciences Rings Webring
[ Join Now \| Ring Hub \| Random \| << Prev \| Next >> ]

Iverson Software: Providing Reliable & Innovative Education Solutions since 1987!

About Us DeveloDex™ OptiMall™ Success Tools Tabularium™ WebRef™

JourneyEd.com is the leading supplier of discounted software to students and faculty.

This site hosted by EASY CGI Web Hosting

Iverson Software Co., is not responsible for typographical errors. Information deemed to be accurate, but not guaranteed. Offers subject to change at any time. Copyright © 1987-2006 Iverson Software Co. Some material copyright of their respective holders. All Rights Reserved Worldwide.