AES E-Library

A New Sound Intensity Probe Comparison with the Pair of Pressure Microphones Intensity Probe

Sound intensity measurements are quite useful as an acoustic measurement technique since in a reverberant environment, even with background noise, the free field as well as the diffuse sound field can be determined. A commonly used intensity probe consists of two closely spaced identical microphones. Especially the phase characteristics of the two microphones should be the same. A much simpler intensity probe is presented, consisting of a microphone and a particle-velocity sensor: the Microflown. Critical experiments show that the performance of this intensity probe is as good as that of the intensity probe using two identical microphones. There are a number of advantages to the new probe: no accurate matching of the sensors is necessary; the same configuration can be used for different frequency ranges, and the dimensions of the probe can be smaller.

Authors: Druyvesteyn, W. F.; de Bree, H. E.
Affiliations: University ofTwente,Enschede,and PhilipsResearchLaboratories, Eindhoven,The Netherlands ; MESA ResearchInstitute of Twente,Enschede,The Netherlands (See document for exact affiliation information.)
JAES Volume 48 Issue 1/2 pp. 49-56; February 2000 Import into BibTeX

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes6)   /jrnl9800/2000/2818.pdf

Start a discussion about this paper!