Maximum Exterior Sound Level for Snowmobiles
J192_202001
This SAE standard establishes the instrumentation, test site, and test procedure for determining the maximum exterior sound level for snowmobiles.
Sound propagation is directly related to the ground cover and provides the largest variation to the measured result. A correction factor is introduced to improve year-round test repeatability of the results on grass surfaces by correcting their spectrum to be similar to snow-covered spectra.
Measured sound pressure levels are also highly dependent on the degree of track slip present when performing the vehicle acceleration. Operators should attempt to limit track slip as much as possible while maintaining the requirements described in 5.1.1.
Rationale:
The committee has agreed to and updated a rounding error in 5.2.2 and relocated some text from 5.5.2 to a newly added Section 6, called Data Processing and Reporting. Imperial units were removed.
Related Topics:
Throttles
Exterior noise
Noise measurement
Noise
Vehicle acceleration
Data acquisition and handling
Recreational vehicles and equipment
Test equipment and instrumentation
Humidity
Also known as: SAE J 192
SAE MOBILUS
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