Medical Alarm Analyzer Frequency Analysis
The Medical Alarm Analyzer conducts FFT frequency content analysis on each alarm signal tone burst to insure that the spectral content meets the requirements of IEC 60601-1-8 for the required number and level of harmonics of the fundamental alarm frequency.
Automated cursors locate peaks in the spectrum of the signal. For passing alarm signals, our spectral peak detection algorithms will automatically pick out the fundamental frequency and all harmonics to indicate passing signals. As with all analysis in Medical Alarm Analyzer, users may also adjust the cursors manually for alarm signals with complex spectral characteristics, often associated with non-passing alarm signals due to distortion of the audio output system.
Pass fail indication for number of harmonics within a set decibel range of the peak levels are provided.