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Measuring Vehicle Exhaust Noise
The measurement process consists of checking the meter's calibration,
setting the meter up in the correct position and then making a
number of measurements with the vehicle's engine running at the
correct speed.
1) Check the Meter's Calibration
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The calibrator (included in the CK261S Kit)
is used to check the calibration of the sound level meter
before making measurements. This is usually a requirement
of the regulations and should be done before starting
noise measurements. |
- Fit the calibrator onto the microphone
- Switch the calibrator on
- Press the Cal button
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2) Position the Sound Level Meter
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In accordance with the ISO 5130 standard,
the microphone should be positioned 0.5m from the exhaust
outlet at an angle of 45°.
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