Laser Methane Copter

About Pergam Product History Applications Working Principle Components and Specifications Sample Data & Reporting

Content

About Us

Proud member of the international PERGAM Group. Sales and service locations in USA, Switzerland, Italy

and Russia. Out staff consists of more than 150 highly specialized

employees.

About UsNatural Gas Leak Detection Power Line Inspection Services

LMm Product History

2009

2013

2015

Laser Methane Mini

Laser Methane Mini-G with green laser and Android interface

UAV LMm-G with Data Logger

Applications Leak detection and emission monitoring

tasks, such as natural gas line surveys, tank inspections, landfill emission monitoring, gas well testing, plant safety audits …

The sensor is only sensitive for methane. Due to this, there are no false readings.

Working Principle The concept is based on Infrared

Absorption Spectroscopy. A laser light in the spectral range

of 1,65 μm is emitted.

Working Principle The laser light is reflected at the

background and captured back in the instrument.

The outgoing and incoming signals are compared with a built-in reference cell.

~ 100 %

Working Principle If there is methane gas present

along the laser path, the laser light is partially absorbed.

An algorithm calculates the gas concentration in ppm*m (parts per million multiplied by meter).

~ 100 %

Components

Laser Methane Mini-G gas detector

LMm Data Logger with integrated GPS and Data Recorder

Micro SD card

UAV, flight controller, mounts, cameras … cannot be provided from Pergam.

Technical SpecificationTarget Gas Methane (CH4) and methane-containing gases (natural gas and similar)Detection Units ppm*mDetection Limits 1 ~ 50,000 ppm*mDetection Speed 0.1 secondsDistance 1.5 ft. – 100 ft. | 0.5 - 30 metersOperating Time Approx. 5 hoursLaser (Guide Light) Output wavelength: 532nm, Output level: 5mW (Class 3R) or lessLaser (Measurement Light) Output wavelength: 1653nm, Output level: 10mW (Class 1) or lessOperating Temperature -1.4°F - 120°F | -17°C - 50°COperating Humidity 30 - 90 % (no dew condensation)

Influencing Factors Vibrations from UAV. Use a gimbal or other vibration eliminating mounts for the

installation. Altitude: the smaller the distance between sensor and background, the higher the

sensitivity. For optimum results, always fly as low as possible. Wind: consider the wind direction. Once determined, always fly the sensor downwind.

The laser needs to ‘cut’ the gas cloud. Shiny surfaces like water or ice don’t reflect sufficient energy back to the instrument.

Parts and DimensionsPart Dimensions Weight

Laser Methane Mini-G(SA3C50A)

116 x 70 x 20 mm4.57 x 2.76 x 0.79 inches

505 grams1.11 lbs.

LMm Data Logger(LMm-UAV)

185 x 80 x 42 mm7.28 x 3.15 x 1.65 inches

130 grams0.29 lbs.

Protection Cover LMm(SA0Z41A)

198 x 88 x 60 mm7.80 x 3.46 x 2.36 inches

240 grams0.53 lbs.

Protection Cover Data Logger 120 x 75 x 25 mm4.72 x 2.95 x 0.98 inches

45 grams0.10 lbs.

Sample DataRecorded as CSV file on MicroSD Card with a frequency of 10 readings / second

D7 271;WD8 348;SLT 34026;WKT 40;h V02.R01 Build 31.03.2015 **** bat:2.64V ,,,,,,,140815,170531.4,A,4726.5677,N,12213.2104,W,9140815,170531.5,A,4726.5677,N,12213.2104,W,8140815,170531.6,A,4726.5677,N,12213.2104,W,7140815,170531.7,A,4726.5677,N,12213.2105,W,150140815,170531.8,A,4726.5677,N,12215,W,8140815,170531.9,A,4726.5677,N,12213.2105,W,11140815,170532,A,4726.5678,N,12213.2105,W,13140815,170532.1,A,4726.5679,N,12213.2105,W,12140815,170532.2,A,4726.5679,N,12213.2106,W,11(…)

Sample DataData Format

140815, 170531.7, A, 4726.5677,N, 12213.2105,W, 150

UTC Date UTC Time Status Longitude Latitude Gas Concentration

ddmmyy hhmmss.sss A = Active or V = Void

N = North, S = South

E = East, W = West in ppm*m

Reporting

3rd party reporting and documentation software (desktop or cloud solutions). For example: LineVision from Remote Geo

Installations

At a Glance Remote detection of methane; no cross-sensitivity with other

gases. Self-check during startup. No calibration of instrument required. Coordinates and gas concentrations are saved on a SD Card, 10

measurements per second. Easy to install through built-in GPS, data storage and own battery.

Thank you for your attention!

Pergam Suisse AG0041 43 268 43 35www.pergam-suisse.ch

Peter Mantel0041 43 268 43 35p.mantel@pergam-suisse.ch

Aleks Krnja0041 43 268 43 35 a.krnja@pergam-suisse.ch