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Cloud Droplet Probe

Cloud Droplet Probe. Droplet Measurement Technologies, 5710 Flatiron Parkway Suite B, Boulder, CO 80301, ph: 303-440-5576, fax: 303-4401965 www.dropletmeasurement.com. CDP Optical Diagram. Mie Scattering. Optical Head. Housekeeping.

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Cloud Droplet Probe

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  1. Cloud Droplet Probe Droplet Measurement Technologies, 5710 Flatiron Parkway Suite B, Boulder, CO 80301, ph: 303-440-5576, fax: 303-4401965 www.dropletmeasurement.com

  2. CDP Optical Diagram

  3. Mie Scattering

  4. Optical Head

  5. Housekeeping • T (degC) = (1 / ((1 / beta) * ln(Rt / Rt0) + (1 / T0))) – 273. • Solving for T as a function of V into ADC: • T(degC) = (1 / ((1 / beta) * ln((5V / Vadc) – 1) + (1 / T0))) – 273 • The ADC has 12 bits, so: • (5V / Vadc) = (4096 / adc_data)

  6. Maintenance • Check windows and clean if necessary • Calibrate with glass beads every 1-2 weeks

  7. Item needed for calibration

  8. Glass bead conversion

  9. Calibration Overload

  10. 20 u glass beads-good

  11. 20 u glass beads- moderate

  12. 20 u glass beads --bad

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