Svantek SVAN 958A - Definitions and Formulas of the Additional Dosimeter Function Results

295
SVAN 958A User Manual
D.1.3 Definitions and formulas of the additional Dosimeter function results
DOSE
Quantity of noise received by the
worker, expressed as the
percentage of the whole day
acceptable value
( )

−
=
T
0
q
LtL
h8
dt10
T
%100
DOSE
cd
D_8h
Quantity of noise received by
the worker during 8 hours
( )
DOSE
T
T
dt10
T
%100
h8_D
h8
T
0
q
LtL
cd
 = =

−
LAV
Average level of the acoustic
pressure for the given time period
of the measurement (T).
In the case of Q (the exchange
rate) equal to 3 the LAV result
has the same value as LEQ if
the Exponential option is
selected (path: Menu / Setup /
RMS Integration).
( )










=

T
0
q
tL
dt10
T
1
logqLAV
d
SEL8
SEL result corresponding to the
integration time equal to 8 hours
]s[1
]s[T
log01LEQ 8SEL
h8
+ =
PSEL
(individual
Sound
Exposure
Level)
Standing sound level in a
measurement period
h8
T
T
log01LEQ PSEL
+ =
E
(Exposition)
Amount of the acoustical energy
received by the worker
 
10
LEQ
2
o
10p
3600
sT
E =
E_8h
(Exposition in
8 hours)
Amount of the acoustical energy
received
by the worker during 8 hours. The
E_8h result is expressed in the
linear units [Pa
2
h].
 
10
LEQ
2
o
10ph8h8_E =