Atmospheric monitor
From WikiCover
On August 30, 2007, Picarro announced the general availability of the EnviroSense 3000i atmospheric monitor.
EnviroSense 3000i is a field-deployable, real-time, ambient gas monitor that measures atmospheric levels of methane and carbon dioxide with parts-per-billion (ppbv) sensitivity and water vapor with parts-per-million (ppmv) sensitivity.
Existing atmospheric monitors based on non-dispersive infrared (NDIR) sensors have known problems -- they are non-linear, sensitive to water vapor concentration, and susceptible to drift. Furthermore, these instruments require extensive modifications and sample conditioning, frequent calibration, and significant post processing of the data.
In contrast, EnviroSense 3000i maintains high linearity, precision, and accuracy over changing environmental conditions, with minimal calibration. The unique capabilities of the underlying CRDS technology are complemented by a superior analyzer design, including a high-precision wavelength monitor providing immunity to interfering gases, meticulous temperature and pressure control, and robust digital signal processing that transforms raw data into directly useable information.
Deployment in several atmospheric monitoring and meteorological facilities, including Penn State University, has shown that the analyzer requires minimal recalibration and no sample conditioning.
EnviroSense 3000i is the first of a suite of analyzers designed to support scientists who investigate global climate change. Two additional monitors will be introduced shortly: EnviroSense 2000f, a flux methane and carbon dioxide analyzer, and EnviroSense 2000i (isotopic CO2 and CH4).