GASCOFIL/Viewgas REMOTE SENSOR

remote sensor-GASCOFIL-Galeras Volcano South Columbia-01-Resonance

GASCOFIL/ViewGas

GASCOFIL is an optical instrument for detecting trace gases in the ppb to percent range concentrations. It works by measuring the spectral signature of a target gas using the highly specific and sensitive technique of correlation spectroscopy. This powerful diagnostic tool involves a correlative comparison between the optical spectrum of a target molecule and spectral mask function in the instrument. By use of multiple masks and/or multiple detectors several gases can be detected with one optical system.


Since no complex or alignment sensitive optics are required the base cost of the instrument, power consumption, size and weight are minimized. A typical remote sensing application uses a sensor that weighs less than 5 kg with power consumption less than 20 watts.

  • Specifications
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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.

Sensor Size

40 x 30 x 20cm

Mass

5kg

Power

<30 watts @ 12V

Data Port

RS 232

Detection Limits

0.1 to 10 ppm-m for IR absorbing gasses

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.

Sensor Size

100 x 30 x 20cm

Mass

10kg

Power

<30 watts @ 12V

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

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.

GASCOFIL Remote Sensor

Sensor Size

40 x 30 x 20cm

Mass

5kg

Power

<20 watts @ 12V

Data Port

USB or RS 232

ViewGas Remote Sensor

Sensor Size

50 x 25 x 20cm

Mass

7kg

Power

<40 watts @ 12V

Data Port

USB

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Resonance Ltd  | Telephone (705)733-3633

143 Ferndale Drive North, Barrie, Ontario L4N 9V9 Canada