Configurations
GASCOFIL
can
be
configured
into three different modes of operation depending on
the application:
1.
DOUBLE
PATH
SENSOR
In
this
mode
the
instrument measures the column density of a target gas
between sensor and retro-reflector. Path length can vary from 0.3 m to
approximately 1000 m.
Specifications:
- Sensor
Size:
40
x
30 x 20 cm
- Mass:
5kg
- Power:
<30
watts
@
12 V
- Data
port:
RS
232
- Detection
limits:
0.1
to
10 ppm-m for IR absorbing gasses
2.
AMBIENT
GAS
POINT
SENSOR
In
this
mode
gas
is drawn through the instrument and measured in-situ from
a closed system or designated sample point. The instrument is
configured as a folded path sensor with an internal multi-path.
Specifications:
- Sensor
Size:
100
x
30 x 20 cm
- Mass:
10
kg
- Power:
<
30
watts
@ 12 V
- Data
port:
RS
232
- Internal
multi-path
cell
optical
path: 1 to 20 meters
- Detection
limits:
0.1
to
10 ppm-m for IR absorbing gasses
3.
REMOTE
SENSOR
This
mode
utilizes
direct
or reflected sunlight or background thermal IR to
detect total column concentrations of specific gases. This
configuration mode is suitable for mounting on a vehicle to look upward
or scan a defined field of view. The sensor can also be mounted from an
aircraft, balloon or orbiting platform to view downwards. A high
sensitivity version of this remote sensor, named ViewGAS, was developed
between 1998 and 2004. This remote sensor improves on the
sensitivity of GASCOFIL by more than 10 times and has been used to
detect small natural gas pipeline leaks.
Specifications
(GASCOFIL
Remote
Sensor):
- Sensor
Size:
40
x
30 x 20 cm
- Mass:
5
kg
- Power:
<
20
watts
@ 12 V
- Data
port:
RS
232
Specifications
(ViewGAS
Remote
Sensor):
- Sensor
Size:
50
x
25 x 20 cm
- Mass:
7
kg
- Power:
<
40
watts
@ 12 V
- Data
port:
USB
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