Noaa clap continuous light absorption photometer
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NOAA CLAP: Continuous Light Absorption Photometer. Why bother with a new instrument? lost data due to overloaded filters unheated sample block leak-prone filter holder "black box" internal processing of PSAP User interface – KISS (Keep It Simple, Stupid!)

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Noaa clap continuous light absorption photometer
NOAA CLAP:Continuous Light Absorption Photometer

  • Why bother with a new instrument?

    • lost data due to overloaded filters

    • unheated sample block

    • leak-prone filter holder

    • "black box" internal processing of PSAP

  • User interface – KISS (Keep It Simple, Stupid!)

    • filter change button and status indicator

    • flow control

    • primary user interface is through 'cpd' software

  • Data output optimized for machine processing

  • Firmware can be upgraded in the field, remotely from Boulder

  • Characterization

    • internal construction (photos)

    • noise vs. averaging time

    • LED intensity

    • planned open source release of drawings, schematics, code





Clap vs psap comparison
CLAP vs. PSAP Comparison

CLAP (new)

sap (Mm-1)

PSAP (old)


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