In a world where there is a drive for everything to be quieter, vehicle noise measurement and control is a growing application. If measurements need to be made to ISO 5130:2007, which is an internationally recognised standard for vehicle exhaust noise testing, a more detailed measurement needs to be made. ISO 5130:2007 requires three consecutive measurements to ensure repeatability. These measurements are taken at a specified engine speed, or RPM, and the maximum sound level produced during the test is taken.
By Pulsar Instruments plc based in Filey, UNITED KINGDOM.
Traditional Field Pass-by measurements are still the only way to certify a vehicle for exterior noise emission during operation, but Indoor Pass-by provides an extremely powerful and repeatable method of troubleshooting exterior vehicle noise in the controlled environment ofan anechoic chamber.
By Brüel & Kjær Sound & Vibration Measurement A/S based in Nærum, DENMARK.
Our noise measurement instruments are used at high profile circuits and venues around the world, helping owners, operators, teams and officials comply with noise limits and regulations. With a range of noise measurement tools including drive-by test systems with permanently installed and portable monitors for continuous measurement of vehicles, to handheld sound level meters for pre and post race scrutineering, we can help you monitor and control your noise levels on track, in the pits and in the surrounding environment.
By Cirrus Research plc based in Hunmanby, UNITED KINGDOM.
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