Oscilloscope and the Cloud
Droplet Probe (CDP)
Overview and Objectives
The department's Oscilloscope was used to illustrate the electric
(voltage) peaks from droplets scattering light. The Cloud Droplet
Probe was powered up and droplets generated using a humidifier. The
Sizer Channel was sampled on channel #1 (Yellow) and the Qualifier
Channel was sampled on channel #2 (blue). The grounding cables were
connected to the side of the electric box. Before the voltage could
be sample correctly on both channels, the Oscilloscope had to be
calibrated in the Spring of 2024 since it was not calibrate since
the Oscilloscope was purchased. The size range was set at 200 mv for
each channel, with an offset between the channels. The trigger was
400 us and 2.5 Ms/s, 256 mv, slope of _/- low-raise-high., coupling
of DC, Type Edge, Auto. The Select Find and Run/stop buttons were
selected.
Videos
Video showing the
CDP and oscilloscope with very high concentrations observations.
Video showing the
CDP and