When water droplets go from being present to not being present over the probe head there is a noticeable decay in the data which causes a exponential decay of sorts to be present. This then results in an indication that water droplets are supposed to be present even though there are no droplets passing over the probe head during this decay period of time. Attached below are photos and graphs that better visualize the problem that is present while using the WCM probe.

• Reference: /nas/und/NorthEast/2025/Lab/CH423/GroundData/20250416_165626/PostProcessing
• Reference: /nas/und/NorthEast/2025/Lab/CH423/GroundData/20250416_165626/Camera_Data

Below is a side by side comparison of what was recorded during this test by both the probe head and the video which in the video shows when water droplets are present and when they aren't. The graph is also marked as to roughly where the video is showing data at and where the corresponding area is on the graph.

One thing to note with the data displayed in the graphs is that the zero baseline is at 2.2 instead of being at zero. This is another noticeable issue with the M-300 and the way it records data. I will refer to this baseline as 'zero' in the rest of the analysis.

The delay between when the WCM displays a 'zero' value and when the probe should be at 'zero' is around about a five or so second delay which can be observed by the graphs. Which after applying a 66.7% data validity factor to the delayed seconds this comes out to being about a 3.34 second delay where data is being displayed that shouldn't be. This is of course just one case but, during this particular data set I did a few other runs where I would run a minuet without water and then a minuet with water.

This data will be added soon.

During the setup of the WCM, we were having issues with the power not being supplied to the WCM Power Box which prompted the WCM software to say that ser17 can't open.

The power connection of the leads from the WCM Power box to the D/C Power supply was not making a good connection with the prongs themselves on the D/C Power supply.

The leads coming from the WCM power box where squeezed together to help in making better contact with the prongs on the D/C Power supply.