Sentence examples for acoustic frequency range from inspiring English sources

In this work, we propose a three-dimensional phononic crystal whose unit cell has been engineered to obtain a strong wave-attenuation band in the middle of the acoustic frequency range.

We found that the location and acoustic frequency range affected the RASS echoes.

Then, after this change of the acoustic frequency range, RASS echoes disappeared below about 6.5 km in Fig. 10, and the RASS echo power above about 7.5 km became stronger.

The radio acoustic sounding system (RASS) with the equatorial atmosphere radar (EAR) at Koto Tabang, Indonesia was adapted to test the effects of the acoustic source location and acoustic frequency range on the continuous measurement of height profiles of temperature in the tropical troposphere.

During period (3), we tested several different acoustic frequency ranges.

As the radar wavelength is 6.38 m, the acoustic frequency ranges from 108.5 to 85.0 Hz.

Five resonators with different acoustic attenuation frequency ranges are built for simulation and test.

Some different configurations can be used to obtain E, where the most significant degrees of freedom are the use of coherent or noncoherent (Hilbert envelope) [ 49] modulation, the number of acoustic bands, and acoustic and modulation frequency ranges.

The objective is to consider an optimum structure with an optimum interface between the structural and acoustic domains, for minimizing the acoustic response of the coupled system at specified points or surfaces inside the acoustic domain within a frequency range of interest, subject to the given amount of the material of the structure.

Four additional samples with a modeled intrinsic porosity were subjected to acoustic tests in the frequency range 200 3000 Hz.

This paper presents acoustic analysis in high frequency range using sound power two-ports applied to Heating, Ventilation, and Air Conditioning (HVAC) systems.