M and P International has launched its So analyser 3.3 with new software and hardware additions.
The real-time analyser for noise and vibration measurement, analysis and reporting in the field and in the laboratory is scalable and offers modules for signal processing and time data recording, modal analysis, impact testing, rotating machinery, acoustic analysis, environmental testing analysis as well as for vehicle pass-by-noise testing.
3.3 supports M and P International's portable, fanless 4-/8-channel Vibpilot front-end with 24-bit resolution and USB 2.0 interfacing.
Full support comprises all native sample frequencies from 1024 Hz to 102.4 kHz, input modes including AC/DC floating or grounded, ICP user selectable on each channel as well as two tacho inputs with 32-bit high-speed up/down counters for measuring synchronous signals on rotating machines.
A sound quality analysis module has been added to the new software revision.
The basis of the SO analyser sound quality analysis is Zwicker loudness that provides standardised methods for this type of product refinement.
The implemented functions which are available both as online and post-processed analysis can be viewed as 2D, 3D or as colour maps (spectrograms) for further analysis.
3.3 introduces other new capabilities and enhancements to the software such as full operation under the Microsoft Windows Vista operating system, the least squares fit analysis tool, percentile calculations and amplitude distribution statistics.
