This paper presents calculated and measured sound intensity data describing power flow in near, reflective and refractive acoustic fields. The data illustrate how the intensity vectors can show sources and sinks in an acoustic system and how near and far fields are linked together to form a continuo
Acoustic impedance measurements with a sound intensity meter
โ Scribed by J.F. Allard; A. Aknine
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 291 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0003-682X
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The present technique for measuring the airborne sound insulation of wails and floors, involving measurements in 16 one-third octave bands, is tedious and expensive. The method provides more information than is needed for most purposes, and is more suited to research. Several investigators have pro
In this review, impedance sensors are presented as linear sensors with two entries whose signals are in#uenced by both pressure and volume velocity. Pressure is generally measured with a microphone, therefore impedance sensors are classi"ed according to the way the volume velocity is determined or c
Differences among readings on different sound level meters when measuring the same signal have been studied with the object of specifying the measuring accuracy in in situ measurements. Three sound level meters of different origins have been used, and five kinds of noises have been measured in five
A calibration method for input impedance sensors which permits an accurate determination of the calibration parameters is presented. The method is based on the measurement of two closed tubes of di!erent lengths whose propagation constant is not required to be accurately known. This method is shown