This device can be employed as a differential optical absorption spectrometer for long-term measurements of trace gases, such as SO2, in the atmosphere. The specialized features of omt’s environmental monitor include its high resolution (<0.1 nm) and long integration times (up to 5 s).
A CCD detector with an operating range between (360 nm and 510 nm) is incorporated for these high resolution measurements. In order to protect the sensitive optical components from the harsh environmental conditions, the housing has been designed to be temperature and precipitation resistant. An option to evacuate the housing is also available.
| Spectral range |
360 - 510 nm |
| Resolution | 0.1 nm |
| Entrance | SMA fiber optic adapter |
|
Optical bench Focal length Grating Slit |
60 mm 1800 L/nm - 230 nm Bl. 75 µm |
|
Others Ability to evacuate Temperature stabilized |
|
Extension of wavelength range (200 - 2500 nm) Sensors Gratings Slits |
CCD, CMOS, InGaAs, TCD e.g. 2100 L/mm - 230 nm Bl. 100 µm, 50 µm, < 50 µm |
|
Others Cylindric lenses for low light intensities |
