Self-noise monitoring systems (SNMS)
The Brüel & Kjær Self-noise Monitoring System (SNMS) is a permanently installed, integrated solution for vibration and noise monitoring of submarines and other vessels where management of the acoustic signature is vital.Ask an Expert
Acoustic detection and identification techniques continuously become more advanced and sophisticated. As they evolve, so must acoustic stealth strategies. To maintain acoustic discretion, all noise sources of a vessel must be considered, including personnel, on-board equipment and cavitation, as well as the radiated noise signature of the vessel as a whole.
Brüel & Kjær has extensive experience in underwater acoustics and testing solutions that can be used in application-specific tasks, from investigating, analyzing and identifying noise sources to validating advanced designs.
Based on Brüel & Kjær’s Commercial-off-the-Shelf (COTS) PULSE platform, the SNMS integrates LAN-XI data acquisition hardware and PULSE software applications to provide a fully integrated solution for monitoring and analyzing noise sources.
The system comprises permanently installed transducers (hull-mounted accelerometers and external hydrophones), transducer power supply, data acquisition, data analysis, storage and display, and data interface. System enhancements include portable vibration meters and carry-on systems to perform time-limited tasks.