INSPECTA FFT - Acoustic steam leak detection system
The INSPECTA FFT Acoustic Leak Detection System has been developed to detect steam tube leaks in power station boilers. Using Fast Fourier Transform (FFT) technology, the system continually monitors and analyses sounds in the combustion chamber, using up to 32, audio field sensors with head amplifiers placed around the boiler. A detected leak is then graphically displayed on the screen by Spectrum and Alarm Bar graphs providing an overview of the severity of the leak. The monitor displays are digitally averaged to allow for any spurious sounds which might otherwise distort the signals.