Larson Davis 831 - Vibration Sensitivity

A-62 Vibration Sensitivity Model 831 Manual
Vibration Sensitivity
In the following tables, "Ref" represent the noise level measured by equivalent stationary microphone.
Vibration Parallel to Microphone Diaphragm
Vibration Perpendicular to Microphone Diaphragm
Frequency L
aeq
Ref
31.5 35.7 35.4
63 35.5 34.8
125 35.8 36.8
250 47.7 47.9
500 52.6 51.4
630 60.5 50.4
800 61.0 54.4
1,000 62.2 60.0
Table A-26 Axis of Vibration Parallel to the Microphone Diaphragm
Frequency L
aeq
Ref
31.5 35.9 35.6
63 38.6 34.5
125 46.0 35.5
250 54.1 39.4
500 67.1 44.2
630 82.6 70.0
800 69.7 45.7
Table A-27 Axis of Vibration Perpendicular to the Microphone Diaphragm