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Function Equations
The following table describes mathematically how the functions available on the
Excieo Vibration Meter are calculated. All calculations displayed are subject to
rounding and/or truncation.
Function
Acceleration
(Metric)
Acceleration
(dB)
Acceleration
(Imperial)
Acceleration
(g)
Chapter 11
1
Aeq
T
T = total integration time (seconds)
a
(ta) = instantaneous acceleration value
w
Aeq
20 log
T = total integration time (seconds)
a
(ta) = instantaneous acceleration value
w
dBref = reference acceleration
Aeq
3.28084
T = total integration time (seconds)
a
(ta) = instantaneous acceleration value
w
1
Aeq
9.807
T = total integration time (seconds)
a
(ta) = instantaneous acceleration value
w
Page 117
Equation
T
2
a
( )
ta
d
( )
w
0
(ta) = time (seconds)
T
1
2
a
( )
w
T
0
dBref
(ta) = time (seconds)
T
1
2
a
( )
w
T
0
(ta) = time (seconds)
T
1
2
a
w
T
0
(ta) = time (seconds)
2
ta
ms
ta
d
( )
ta
(
dB
ta
d
( )
ta
fts
( )
ta
d
( )
ta
g ( )
)
2
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