Sound Intensity Measurements with Nor150

The Norsonic sound intensity measurement solution combines the Nor150 dual-channel analyser with the Nor1290 sound intensity probe kit to deliver a complete, ISO 9614-compliant system for sound power determination and noise source identification. This proven combination enables engineers to measure both the magnitude and direction of sound energy flow, providing insights that conventional sound pressure measurements alone cannot deliver. Whether determining the sound power of industrial machinery, investigating transmission loss through building partitions, or isolating individual noise sources in complex reverberant environments, this system offers research-grade accuracy in a portable, field-ready package. The Nor150 provides phase-matched dual-channel acquisition essential for accurate sound intensity calculations. Real-time display of the pressure-intensity index (reactivity index) allows operators to verify measurement quality on-site, ensuring that results meet the field indicator requirements of ISO 9614-1 (discrete point method) and ISO 9614-2 (scanning method). The system supports both measurement approaches, giving consultants the flexibility to choose the optimal technique for each application. Broadband and 1/3 octave band intensity data are captured simultaneously, enabling detailed frequency analysis of sound power contributions. For GCC-based engineers and researchers, sound intensity measurement is indispensable for certifying machinery sound power levels required by export regulations, evaluating noise control treatments on oil and gas processing equipment, and determining the transmission loss of building facade elements under real-world conditions. Universities across Saudi Arabia, the UAE, and Qatar use this system for graduate-level acoustics research and laboratory instruction. The complete workflow from measurement through analysis and reporting is handled by Nor850 software with the Sound Intensity module, producing professional ISO 9614 test reports ready for client delivery or regulatory submission.