Mini Laser Trace Gas Monitor

 

Sensitive, rapid, highly specific and continuous measurements of atmospheric trace gases in ambient air. See the world's most precise nitrous oxide (N2O) monitors.

 

 

 

 

 

Applications

  • Detection of a wide variety of atmospheric trace gases, such as: methane, nitrous oxide, nitric oxide, nitrogen dioxide, carbon monoxide, carbon dioxide, formaldehyde, formic acid, ethylene, acetylene, carbonyl sulfide, acrolein, ammonia and others.
  • Isotopic monitoring of CO2, CH4, and N2O.
  • Combustion monitoring and characterization.
  • Isotopic monitoring for source/sink characterization.
  • Eddy Covariance measurements for nitrous oxide and other trace gases.
  • Fast response plume studies.
  • Breath analysis.
  • Air quality monitoring.
  • Mobile measurements from ship, truck, and aircraft platforms.
  •  Simultaneous monitoring of N2O, CO2 (or CO) and water vapor with unprecedented precision.

Advantages

  • Our smallest QC laser trace gas monitor with electronics and optics in a single compact unit.
  • Absolute trace gas concentrations without calibration gases.
  • Fast time response.
  • Free from interferences by other atmospheric gases or water vapor.
  • Turnkey and unattended operation.
  • Cryogen free.
  • Ready to be deployed in field measurements and on moving platforms.
  • Optical path length up to 76 meters.

Specifications

Higher precision and accuracy is obtainable with CW-RT QCLs.

Table 2. Some atmospheric trace gases which can be monitored with CW QC lasers. For each species the optimal wavelength (cm-1), the nominal detection precision (ppt in1 sec) and the detection limit (2 sigma in 100 sec) are given based upon a sampling cell with pathlength of 76 m.

Trace gas Wavenumber
[cm-1]
Precision
(1 s) [ppt]
LOD
(100 s) [ppt]
CO
N2O
2190
1271
60
60
 30
--
N2O
NH3
 2250
967
30
40
 --
20
NO2
HONO
1600
1279
40
300
20
150
HCHO
HCOOH
1765
1766
 100
200
60
120
NO
OCS
 1900
2056
100
5
50
2

Data outputs
Local storage, internet, RS232, analog output

Data rate
1 to 10 Hz (depends on specific instrument and vacuum pump)

Instrument operation
Autonomous and/or remote control

Options
Replacement lasers to access additional molecules
On site training

Mechanical Specifications for compact single QCL instrument
Dimensions: 650 mm x 430 mm x 270 mm (L x W x H) (core instrument)
Weight: 35 kg (core instrument)
Electric Power: 500 W, 120/240 V, 50/60 Hz (with Varian IDP-3 vacuum pump)

♦ For more information or support for our quantum cascade lasers:
qcl-info@aerodyne.com