The purpose of this SAE Recommended Practice is to provide guidelines for selection of transducers@ data acquisition systems@ and other instrumentation as well as analysis methods to help ensure proper measurement and evaluation of acoustic impulses in automobiles. While this Recommended Practice focuses on automotive inflatable devices@ such as@ frontal airbag systems@ pretensioners@ inflatable curtains@ side airbags@ etc@ it can be used for measurement of other impulsive sounds in a vehicle if needed. The objective is to achieve uniformity in instrumentation practice and reporting of test measurements. Use of this recommended practice should provide a basis for meaningful comparisons of test results from different sources. This recommended practice specifies procedures for static measurement of acoustic impulses@ but due to the much more complicated nature of crash testing@ does not specify procedures for measuring impulses in vehicles during crash tests.
SAE J247-2012 history
2013SAE J247-2013 Procedure and Instrumentation for Measuring Acoustic Impulses from Deployment of Automotive Inflatable Devices
2012SAE J247-2012 Instrumentation for Measuring Acoustic Impulses Within vehicles
1987SAE J247-1987 Instrumentation for Measuring Acoustic Impulses Within vehicles
1974SAE J247-1974 Instrumentation for Measuring Acoustic Impulses within Vehicles
1971SAE J247-1971 INSTRUMENTATION FOR MEASURING ACOUSTIC IMPULSES