Direct measurement of aerosol light absorption and scattering

In situ measurement without filters, continuous and autonomous operation

405, 532 and 781 nm laser wavelengths, simultaneous measurement

Absorption measurement at 781 nm is highly specific for black carbon (soot)

Scattering measurement responds to all particle types

Real-time readout of aerosol mass loading

Wide dynamic range, good for ambient or source sampling

With 2-second integration, absorption sensitivity to 3.0 Mm^-1 (@781nm), 10.0 Mm^-1 (@ 532nm and 405nm). Longer integration times yield improved sensitivity

Suitable for fixed site, mobile and airborne sampling

Power: 115/60 or 220/50, 100 W instrument, 250 W pump

Joint development of DMT and Desert Research Institute

U.S. Patent # 6,662,627 B2

System includes analytical spectrometer, internal data system computer, real-time recording and playback software, shipping case, one day of training at DMT's facility, operations manual, and one-year warranty. Installation and training at customer's site available