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Acoustic Camera measurements as a service
What is the Acoustic Camera? |
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The Acoustic Camera is a new technology which makes the sound visible. Similar to a weather chart or a thermographic image the areas of the same sound levels are painted with the same colour. Blue for quiet and red for loud. |
How is the Acoustic Camera working? |
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A digital camera is taking an image of the noise emitting object. At the same time an exactly computed array of microphones acquires and records the sound waves emitted by the object. A special developed software calculates a sound map and combines the acoustical and the optical images of the sound source. |
Which answers do I get? |
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The Acoustic Camera can extend the time and frequency selectivity and add a location-selective component. With this method the sound signal is shown and also a sequence of acoustic images can be acquired – acoustic films are generated. Nevertheless the Acoustic Camera comprises traditional analysis methods as well, like A-weighting, one-third octave band and narrow band analysis. |
The advantage compared to classical acoustic measurements? |
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With the Acoustic Camera it can be precisely analysed when, where and which part is occurring the sound emission. The so far used analyses do have an important disadvantage as the location of the emission is limited or not possible. If the sound from several spots of an appliance is to be acquired simultaneously, individual microphones are required for each reading point, and they must be placed very close to the object – a time consuming and costly method. |
How to do the measurement? |
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The handling is very simple. You can monitor the target object in real time on-screen in a preview window. After setting up the camera just press the “shutter release button” and the “acoustic fingerprint” has been stored. Afterwards the computer can calculate one or more sound maps. |
