태양광
측정 시스템 - SRA 01
(SOLAR
RADIATION MEASUREMENT : PYRANOMETER)
2 component net-radiation sensor
SRA01 is a 2-component radiation sensor
that is used for scientific-grade energy balance studies. The instrument has
separate measurements of solar (Short Wave or SW) and Far Infra-Red (Long Wave
or LW) radiation. Combined with estimates of SW solar albedo- and of surface
temperature, this instrument can also be used for estimation of net-radiation.
The advantage in this approach are reduction of costs and independence from
local surface properties.
Figure 1 SRA01 2-component radiation sensor. SW solar
radiation sensor or pyranometer (1), LW Far Infra-Red radiation sensor or
pyrgeometer (2), radiation shield (3), levelling assembly for x- and y axis (4,
5 and 7).
Figure 2 SRA01 top view. Standard cable length is 5
m. Cable can be installed /
replaced by the user. Attachement to a 1 inch tube (2), not included, is
extremely easy, levelling possibilities are included. Dimensions in
mm.
SRA01 serves to measure 2 separate components
of the surface radiation balance. Working completely passive, using a thermopile
sensors, generates 4 small output voltage proportional to the incoming solar SW
and LW flux. The solar radiation sensor is also called pyranometer, the LW
sensor is also called pyrgeometer. For calculation of sky- and surface
temperature, a Pt100 temperature sensor is included in the
pyrgeometer.
In order to avoid deposition of dew, the
pyrgeometer may be heated. A 2-axis levelling assembly is included.
The SRA01 cable can easily be installed or
replaced by the user.
See also SNR01
4-component net-radiameter, on the previous page, which is a double side version
of SRA01.
SRA01 SPECIFICATIONS
General:
-
Temperature range: -40 to +80
oC
-
Temperature sensor: Pt100
- Temperature sensor: users own preference can
be plugged in
Pyranometer (SW):
-
Pyranometer ISO classification: second
class
-
Spectral range: 305 to 2800 nm
-
Calibration traceability: WRR
LW Pyrgeometer (LW):
-
Spectral range: 4500 to 50000 nm
-
Calibration traceability: NIST
- Window heating offset: <15
Wm-2 @ 1000 Wm-2
solar radiation
-
heating power: 5 Watt @12VDC
OPTIONS
- Additional cable length x metres (add to
5m)
- Upgrade to SNR01
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