NDIR is a well-accepted technique to measure and monitor various gases related to pulmonary function tests (PFTs). Various such techniques, which are related to spirometry, have been developed in the last decade, where a quick and precise monitoring of certain gases is necessary. Typical gases are CO and CO₂, but also methane (CH₄) and various nitrogen oxides.

Axetris IR Sources are the ideal choice for use in such diagnostic instruments.

Advantages of Axetris Infrared Sources :

• High emission at 4.26μm
• Small size
• Fast electrical modulation (Modulation frequency: >10Hz)
• High modulation depth
• Low power consumption
• Long lifetime

Axetris offers solutions by providing a portfolio of IR sources with several reflector with or without integrated windows (BaF₂, CaF₂, GeART100).