Germanium Optical Windows for Gas Detection
Germanium is used within Gas Detection as this very special Infrared Material
Description
Exhaled Breath = 78.04% Nitrogen + 13.6%-16% Oxygen = CO2 Car Exhaust = Carbon Dioxide + Carbon Monoxide + Sulphur Dioxide + Nitrogen Oxides + Hydrocarbons How do we know this? Gas detection in Continuous Emission Systems (CEMS), combustion analysers and environmental monitoring are key to ensuring that the world we live in is monitored for its pollution and environments we work in are safe to do so as gases can be detrimental to life. Knight Optical provide a number of optical components that are used in Gas Detection Systems. We can also provide interference bandpass filters that work within the IR, front surface mirrors, gas cells and singlet lenses and window made from Germanium (Ge), Calcium Fluoride (CaF2), Silicon (Si), Quartz/ Fused Silica, Magnesium Fluoride (MgF2) and Sapphire (Al2O3). Read PDF for more information ….
- Gas extraction - systems and equipment
- monitoring for pollution & environment
- detecting intensity of the gas
- Gas Detection Systems
Product characteristics
- Diameter Range:
- less than 5mm to 300mm
- Diameter Tolerance:
- better than ± 0.1mm
- Thickness Tolerance:
- +/- 0.2mm
- Clear aperture:
- 90%
- Centration tolerance:
- better than 1 arc minute
- Form error:
- better than 0.5 wave (633nm) over aperture
- Surface radius tolerance:
- less than 1 fringe over aperture
- Surface quality:
- < 40-20 scratch/dig
- Coating:
- AR/DLC (Diamond like coating @ 1-14μm)
Documents
Videos
Similar products from KNIGHT OPTICAL (UK) LTD
KNIGHT OPTICAL (UK) LTD
United Kingdom
Gas Detection Systems use Interference Bandpass Filters to identify the emission of a type of gas. Different gases emit at a specific wavelength which makes it identifiable when using a relevant Interference Bandpass Filter. These wavelengths are: Carbon Monoxide (CO) @ 4.73μm Nitric Oxide (NO) @ 5.24μm Nitrogen Dioxide (NO₂) @ 6.17μm Sulphur Dioxide (SO₂) @ 7.42μm Hydrogen Chloride (HCl) @ 3.55μm Carbon Dioxide (CO₂) @ 10.7μm Knight Optical provide a wide range of interference bandpass filters that can be used with gas detection. The Interference Bandpass Filters would be need to transmit in the infrared region. These would be a customised item, which we are very experienced in. We provide narrow, standard, broadband and extra broadband filters with a high optical density of 4 as standard, however this can be customised for you. For more information read PDF