Acoustics for images
The beamforming technique makes it possible to obtain an acoustic map that overlies the photographic image of the source being surveyed in real time; this makes acoustic characteristics of the latter visible, thereby generating an image that, in frequency, makes it possible to define its origin and the sound pressure level.
HOW THE SYSTEM WORKS
Thanks to a powerful microphone array, the change in acoustic pressure detected by the sensors is converted into a set of pixels returned to video.
The result is a series of images or high-definition video capable of precisely identifying, in terms of both frequency and level, the points in which the acoustic emission is more problematic.
Thanks to this innovative system, it is possible to optimise the design of machines, equipment, and components, as well as to provide a remedy, during works, to problems related to sound emission.
LOCALISATION OF HIGH DEFINITION ACOUSTIC SOURCES
The acoustic source localisation system with sound intensity measurement makes it possible to create high-definition acoustic maps or films with a high visual impact that can be easily interpreted.
THE MICROPHONE ARRAY
The spacing, the dimensions of the array and the number of microphones determine the dynamic range and resolution of the instrument. With 120 microphones (underlying array) it is possible to conduct surveys starting at 40 Hz.
There are many applications used with the instrumentation for these surveys. One can investigate the criticalities of the structures, seeing where there are acoustic bridges; it is possible to identify where impulsive noises come from, like large machinery. Ultrasound video cameras can be used to detect gas and liquid leaks. These are all cases where the sound level meter cannot provide us with a solution.
Ideal for all those acoustic auditing and diagnostic services where it is important to identify the source of the disturbance, ECO Certificazioni carries out diagnostic activities using high-definition image acoustic video cameras..