A nitrous oxide (N₂O) sensor for emissions monitoring and for biofuelled vehicle emissions measurements from TDL Sensors Ltd.

This monitor is based upon difference frequency generation (DFG) of mid-infrared laser light around 4.6 microns.


Fig.1. Experimental N₂O (30 ppmv) and CO (22 ppmv) absorption spectra observed in an optical cell (path length of 21 cm ) at a pressure of 111 Torr using TDL Sensors' difference-frequency generation spectrometer based on two DFB lasers and a periodically poled lithium niobate (PPLN) crystal.

Features

  N₂O absorption measurement based upon DFG laser
    source operating around around 4.6 microns

  Parts per billion resolution

  Absolute measurements

  Rugged and reliable

  Low operating cost
 

Applications

  Emissions monitoring

  Biofuel research

  Ambient nitrous oxide monitoring for agricultural applications
 

Ordering Options

RS232, RS485, 4-20mA
Alarm relays
19" rack mountable version
GPRS modem or Ethernet

Combustion Control

Quantum Cascade Laser
 New! Systems  

Stack Monitoring/CEMS

Hazardous Area Monitoring     

Trace Gas Analysers 

Multipass Optical cells 

New! OEM components 

Custom Instruments

Contract R&D