New to the forums, but I’ve been using BlueRobotics products for a little while. Out of curiosity I wanted to post this plot of the PCB temperature of a blue robotics ping unit I have in a pond being used to measure ice thickness.
Initially I was sort of hoping I might be able to use the PCB temperature to get a sense of the ambient water temperature at the depth of the ping, but obviously it’s a bit too warm for that. However, after watching it for a while I’ve gotten a little curious about the ratcheting in temperature that seems to occur. It’s likely not water temperature fluctuations because I am also separately getting a temperature profile of the pond and it looks like this (oops, new users can only post one media item, will post later if people are interested):
and the regularity of it makes me think it’s not sensor noise. Sensor is in pretty much regular, continuous operation. Ideas?