The FSM 2202 is a laboratory Fourier-transform infrared (FTIR) spectrometer developed and manufactured by INFRASPEK LLC under the FSM trademark. Designed for scientific research and analytical measurements in the mid-infrared spectral region (370–7800 cm⁻¹), it provides qualitative and quantitative analysis of organic and inorganic substances in gaseous, liquid, and solid states, including thin films and powders.
At the core of the instrument is a self-compensating Michelson interferometer that requires no dynamic realignment, ensuring consistent optical performance over time. The FSM 2202 achieves a spectral resolution of 0.5 cm⁻¹ and a signal-to-noise ratio exceeding 60,000 (measured over one minute at 4 cm⁻¹ resolution in the 2100–2200 cm⁻¹ band).
A complete spectrum can be acquired in under one second.
The KBr/Ge beamsplitter and optical windows carry moisture-protective coatings, and the instrument includes a built-in dry air or nitrogen purge system that suppresses spectral interference from water vapor and CO₂. The generously sized sample compartment (200×190×170 mm) accepts a wide variety of gas and liquid cells, optical accessories, and attachments for diverse sample forms.
All measurement operations are fully automated through the proprietary FSpec software (Windows XP through 10), which supports custom and standard spectral libraries and activates plug-in compliance modules for GOST, ASTM, EN, and SEMI methods. The FSM 2202 is the successor to the earlier FSM 1202, offering an improved signal-to-noise ratio and a larger sample compartment.
Overall dimensions are 520×370×250 mm.
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