Features
- Airborne device mounted on helicopters and fixed-wing aircraft
- Full automation
- Detects faster than the conventional method (detection speed: 0.1 sec)
- Methane-only sensitivity. No false alarm
- User-friendly software
- Automatic and continuously performs
Applications
- Pipelines
- Fixed-wing aircraft
- Underground gas storage
- Gas distribution stations
- Gas processing plant
- Gas storage
ALMA G5 Airborne Laser Methane Assessment Overview
ALMA G5 (Airborne Laser Methane Assessment) is based on the utilisation of a laser absorption spectrophoto-meter of methane gas for gas measurement. The system detects natural gas leaks by emitting a laser at a specific wavelength and analysing the reflected light to determine how much methane in the natural gas has been absorbed. The measured gas volume is expressed by methane column density (ppm × m): methane density (ppm) multiplied by length (m).
ALMA is a system of airborne surveying of natural gas pipelines and storage facilities. The detector operates on the principle of diode-laser spectroscopy, which provides high reliability, accuracy, and selectivity.
The device is fully automated and can operate continuously without an operator, storing the results in computer memory. The detector includes a GPS system that determines the coordinates of the flight route and leak points. Upon leak detection, the operator receives a light-and-sound signal, and the monitor displays a photo and a Google Map of the leak site.
The detectors are designed for operation in temperate and cold climates; they comprise an optical unit and an electronics case.
ALMA G5 Airborne Laser Methane Assessment Specifications
| Maximum Measurement Distance | 50m |
| Measurement Time | 0.04 sec + 0.2 sec
(simultaneously) |
| Detection Range | 25-20’000ppm*m @ 50m or
100-20’000ppm*m @ 100m |
| Relative Measurement Accuracy | 1% |
| Power Supply | 22-32 VDC + 280 W |
| Operating Temperature Range | -10 – +50oC |
| Laser Wavelength | 1.65 μm |
| Laser Power | 10mW |
| Minimum Detectable Radiation Power | 2 pW |
| Optical Unit Dimensions | 95cm x 67cm x 44 cm (L x W x H) |
| Optical Unit Weight | 43kg |
| D-Box Dimensions | 38cm x 38cm x 34 cm (L x W x H) |
| D-Box Weight | 25kg |
- Overview
-
ALMA G5 Airborne Laser Methane Assessment Overview
ALMA G5 (Airborne Laser Methane Assessment) is based on the utilisation of a laser absorption spectrophoto-meter of methane gas for gas measurement. The system detects natural gas leaks by emitting a laser at a specific wavelength and analysing the reflected light to determine how much methane in the natural gas has been absorbed. The measured gas volume is expressed by methane column density (ppm × m): methane density (ppm) multiplied by length (m).
ALMA is a system of airborne surveying of natural gas pipelines and storage facilities. The detector operates on the principle of diode-laser spectroscopy, which provides high reliability, accuracy, and selectivity.
The device is fully automated and can operate continuously without an operator, storing the results in computer memory. The detector includes a GPS system that determines the coordinates of the flight route and leak points. Upon leak detection, the operator receives a light-and-sound signal, and the monitor displays a photo and a Google Map of the leak site.
The detectors are designed for operation in temperate and cold climates; they comprise an optical unit and an electronics case.
- Specifications
-
ALMA G5 Airborne Laser Methane Assessment Specifications
Maximum Measurement Distance 50m Measurement Time 0.04 sec + 0.2 sec (simultaneously)
Detection Range 25-20’000ppm*m @ 50m or 100-20’000ppm*m @ 100m
Relative Measurement Accuracy 1% Power Supply 22-32 VDC + 280 W Operating Temperature Range -10 – +50oC Laser Wavelength 1.65 μm Laser Power 10mW Minimum Detectable Radiation Power 2 pW Optical Unit Dimensions 95cm x 67cm x 44 cm (L x W x H) Optical Unit Weight 43kg D-Box Dimensions 38cm x 38cm x 34 cm (L x W x H) D-Box Weight 25kg - Downloads
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