Page 7 - Vibrations-2
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=−1
1
2
= 10log 10 ( ∑ )
=0
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One algorithm for calculating log 10(x)
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log () = + 1 + ⋯ ( )
8
10
0
2 2
Where = ∙ 2
C = -1.332183622 C = 4.909769401 C = -12.05022337
2
1
0
C = 22.36407471 C = -28.96563148 C =25.42144201
3
5
4
C = -14.41930397 C = 4.772579384 C = -0.7005197015
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7
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This is for a digital device.
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Very often if you need to determine the amount of noise a
machine is producing, you would use one of these hand-
held devices.
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