DeltaOHM HD2402, Руководство по эксплуатации

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HD2402
- 6 -
V1.4
(a)
t
0
eff
H
=
∫ ∫
= λ
nm 400
= λ
nm 180
t d d ) ( S ) t , ( E
. . .
λ
λ λ λ
(H
eff
is only relevant in the range 180 to 400 nm)
(b)
H
UVA
=
t
0
λ
= 400 nm
λ
= 315 nm
(
λ
, t) . d
λ
. dt
∫ ∫
E
λ
(H
UVA
is only relevant in the range 315 to 400 nm)
(c), (d)
L
B
= L
λ
(λ)
.
B
(λ)
.
d
λ
λ
= 700 nm
λ
= 300 nm
∫
(L
B
is only relevant in the range 300 to 700 nm)
(e), (f)
∫
700 nm
B
λ
d )
λ
( B )
λ
λ
( E E
=
λ
= 300 nm
λ
. .
=
(E
B
is only relevant in the range 300 to 700 nm)
(g) to (l) L
R
= L
λ
R
d
λ .
(
λ
)
λ
2
λ
1
∫
.
(
λ
)
(See Table 1.1 for appropriate values of
λ
1
and
λ
2
)
(m), (n)
∫
⋅ =
= λ
= λ
λ
nm 3000
nm 780
IR
d
λ
) (
λ
E E
(E
IR
is only relevant in the range 780 to 3 000 nm)
(o)
∫ ∫
⋅ ⋅ =
= λ
= λ
λ
t
0
nm 3000
nm 380
skin
dt d
λ
)t , (
λ
E H
(H
skin
is only relevant in the range 380 to 3 000 nm)
Table 1: formulas for the calculation of limit values
Where :
E
λ
( λ ,t),
E
λ
Spectral irradiance or spectral power density: the radiant power incident per
unit area upon a surface, expressed in watts per square meter per nanome-
ter [W/(m
2
nm)]; E
l
( λ ,t) and E
λ
values come from measurements or can be
supplied by the manufacturer of the equipment;
E
eff
Effective irradiance: calculated irradiance within the UV wavelength range
180 to 400 nm, spectrally weighted by S ( λ ), expressed in watts per square
meter [W/m
2
];
H Radiant exposure: the time integral of the irradiance, expressed in joule per
square meter [J/m
2
];
H
ef
f Effective radiant exposure: spectral weighting by S ( λ ) radiant exposure,
expressed in joule per square meter [J/m
2
];
E
UVA
Total irradiance (UVA): calculated irradiance within the UVA wavelength
range 315 to 400 nm, expressed in watts per square meter [W/m
2
];
H
UVA
Radiant exposure: the time and wavelength integral or sum of the irradiance
within the UVA wavelength range 315 to 400 nm, expressed in joule per
square meter [J/m
2
];
S ( λ ) Spectral weighting taking into account the wavelength dependence of the
health effects of UV radiation on eye and skin [dimensionless];
t, Δ t Time, duration of the exposure, expressed in seconds [s];
λ Wavelength, expressed in nanometers [nm];
Δλ Bandwidth, expressed in nanometers [nm], of calculation or measurement
intervals;
L
λ
( λ ),
L
λ
Spectral radiance of the source, expressed in watts per square meter per
steradian per nanometer [W/(m
2
sr nm)];