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• Battery Lid

  Eben • 12/29/2020 at 08:31 • 0 comments

  The battery lid now fits better and the new version has been uploaded to: https://www.thingiverse.com/thing:4700913 Make sure to print the new version as the old version did not fit!

• 24 hour submersion test

  Eben • 12/25/2020 at 04:53 • 0 comments

  Here I leave the sensor in water for 24 hours to see if the silicon waterproofing of the electronics works.

  When I switched on the control box and turned the prop, it still worked as before, so I'm happy enough with this waterproofing technique for now.
  

• First complete unit

  Eben • 12/24/2020 at 15:03 • 0 comments

  Here is the first fully assembled unit:

  
  It features an: on/off switch, aviation connector, rechargeable battery, configurable intervals for taking speed tests and has a quick detach system from the ranging poll (this means we can carry less on field trips by using the range poll to hold the flow meter).
  

• Sensor testing

  Eben • 12/19/2020 at 03:50 • 0 comments

  I tested a range of different pipe sensors at the start of this project back in April 2019:

  
  I wanted to use the small clear sensor shown on the far right, however it could not measure slow moving water. The first sensor I built that was used for field work in a test was using the DN50 (the large black sensor, centre left of the image). But it still did not perform well in slow moving water.
  The current build is now using the DN80, the one on the far left of the above image.
  

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