Larson Davis HVM100, Руководство пользователя

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B-2 HVM100 User Manual 4/11/03
Allowed
Exposure Time
Energy
Equivalent RMS
Acceleration
The HVM100 measures the following quantities:
Running RMS
Acceleration
LINEAR
τ =
Integration time, in seconds.
t
o
= Observation time
The linear Arms integration time is controlled by the Averaging time setting;
a new linear Arms value is calculated and displayed at the end of each inte-
gration period.
Description Equation
2.8m s
2 ⁄ ( )
Aeq
( ) ⁄ [ ]
2
8hours
×
A 8
( )
1
8Hours
------------------- a
w
2
t
( )
t d
0
T
∫
=
A 4
( )
1
4Hours
------------------- a
w
2
t
( )
t d
0
T
∫
=
A 2
( )
1
2Hours
------------------- a
w
2
t
( )
t d
0
T
∫
=
A 1
( )
1
1Hours
------------------- a
w
2
t
( )
t d
0
T
∫
=
Arms
1
τ
---
a
w
2
t
( )
t d
t
0
τ
t
0
∫
=
-