SPEC's Mission is to further our understanding of atmospheric processes and climate change, primarily through development of innovative instrumentation, analysis and publication of collected data. SPEC has been on the forefront of cloud particle probe development for the past three decades. The company has 20 employees, including five Ph.
D. scientists and several graduate engineers. The SPEC Learjet is equipped with state-of-the art research instrumentation and has participated in major field campaigns. SPEC's development of new and innovative atmospheric sensors, its participation in over 40 international field programs and extensive scientific publication record are a testament to the company's dedication to its mission.
D. scientists and several graduate engineers. The SPEC Learjet is equipped with state-of-the art research instrumentation and has participated in major field campaigns. SPEC's development of new and innovative atmospheric sensors, its participation in over 40 international field programs and extensive scientific publication record are a testament to the company's dedication to its mission.
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SPEC was incorporated in 1979 and was originally a consulting company owned by Dr. Paul Lawson. In 1989, SPEC expanded its view and aggressively pursued the US Government Small Business Innovative Research (SBIR) program, which offers funding on a competitive basis for new and innovative research proposals.
The CPI records high-resolution (2.3 micron pixel size) digital images of particles (see examples) that pass through the sample volume at speeds up to 200 m/s. It is offered with two camera frame rates: The Version 2.0 flashes up to 74 frames per second (fps) and the Version 2.5 images particles at rates up to 400 fps.
SPEC developed the 3V-CPI (3-View Cloud Particle Imager) to overcome limitations of the CPI. As shown in the Figure below, the CPI uses single photodiodes for the Particle Detection System (PDS). Because of inhomogeneities in the laser beam intensities and the unpredictable scattering properties of small ice particles, the sensitivity and therefore the detection efficiency of particles < ~ 100 m is inconsistent.
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