By Dan Romanchik, on July 9th, 2009%
The National Instruments USB-4431 dynamic signal acquisition DSA module acquires data at rates from 1 to 102.4 kS/s, which makes it possible to obtain a wide measurement bandwidth. The combination of the USB-4431 and the new vibration sensors, which include three accelerometers, a triaxial accelerometer and an impact hammer, gives engineers a complete stimulus-response system for . . . → Read More: Sensor Suite, USB Device Measures Sound and Vibration
By Dan Romanchik, on July 2nd, 2009%
A new 12-page brochure is now available from Anthony Best Dynamics Ltd., which overviews the operation of its Plato objective NVH measurement & analysis system – specifically, when operating in-vehicle.
To receive a copy of the brochure, e-mail Andy.Rumble@abd.uk.com and specify with either:
brochure – PDF
brochure – posy
on the Subject: line. The PDF-document is 1.5MB . . . → Read More: Brochure Describes NVH System
By Dan Romanchik, on June 19th, 2009%
The Society of Automotive Engineers (SAE) International has produced a simple, consistent and economical sound test standard that can be used to determine whether a streetbike (on-highway motorcycle) exhaust system emits excessive sound, the AMA reports.
The J2825 “Measurement of Exhaust Sound Pressure Levels of Stationary On-Highway Motorcycles,” issued by the SAE in May, establishes instrumentation, test . . . → Read More: SAE Releases Motorcycle Sound Test Standard
By Dan Romanchik, on October 24th, 2008%
The Sound Level Technical Committee handles the development of standards related to noise control. It’s seeking members to participate in the standards development process. The standards include the test procedures for sound level measurement (SAE J88 and SAE J919), noise exposure (SAE J1166) and the effectiveness of audible warning systems (SAE J994, SAE J1105, and SAE . . . → Read More: SAE Sound Level Committee Seeks Members
By Dan Romanchik, on May 6th, 2008%
LMS International‘s NVH Observer is a subscription-based database with vehicle NVH benchmarking information. Currently, the database contains fourteen reference vehicles with plans to increase it by at least 8 vehicles on an annual basis. For each vehicle in the database, NVH Observer includes 6,000 curves such as spectra, orders, sensitivities, TPA noise contributions, modes and binaural . . . → Read More: Database Provides NVH Benchmarking Info