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  3. Misol rain gauge tipping bucket rain amount

Misol rain gauge tipping bucket rain amount

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  • ร Offline
    ร Offline
    รอเรือ
    wrote on last edited by รอเรือ
    #1

    Has someone measured what amount of rain one "tip" of the tipping bucket of the MISOL rain gauge corresponds to? It would be great to know so I can calibrate my scripts.

    0_1533984020053_HTB1aTt9kDlYBeNjSszcq6zwhFXaK.jpg

    EDIT: I found this article that suggests it should be 0.0161 inches which is 0.40894 mm.

    EDIT2: Another source is suggesting 0.2794 mm.

    EDIT3: packetrat is suggesting 83.82 pulses per inch which should be 0,303030303 mm

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    • H Offline
      H Offline
      hek
      Admin
      wrote on last edited by
      #2

      This guy:
      https://pi.gate.ac.uk/posts/2014/01/25/raingauge/
      have calculated it to 0.2794 mm per tip.

      ร 1 Reply Last reply
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      • H hek

        This guy:
        https://pi.gate.ac.uk/posts/2014/01/25/raingauge/
        have calculated it to 0.2794 mm per tip.

        ร Offline
        ร Offline
        รอเรือ
        wrote on last edited by
        #3

        @hek Thanks! I just saw that while editing my first post. It sounds a little bit low.

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        • H Offline
          H Offline
          hek
          Admin
          wrote on last edited by
          #4

          Maybe you should do some tests to see if it is looks resonable.

          ร 1 Reply Last reply
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          • H hek

            Maybe you should do some tests to see if it is looks resonable.

            ร Offline
            ร Offline
            รอเรือ
            wrote on last edited by
            #5

            @hek

            I let 1126-202 grams water slowly flow into the 55 cm2 gauge and it generated 475 tips.

            That gives me 0.3537 mm/tip. I'll go with that. :relaxed:

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            • Z Offline
              Z Offline
              zimzim
              wrote on last edited by
              #6

              What script did you use to test Misol Rain Gauge tipping bucket.
              Finding a tutorial/testing for it proves to be difficult i'm not sure where to put the red and green wires into as well

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              • P Offline
                P Offline
                pkkrusty
                wrote on last edited by
                #7

                Old topic, but my test shows .304mm per tip. I calculated the surface area as 54.7854cm^2, which is 5cm x 11cm minus the small rounded corners. I slowly poured 60cc water and counted 36 tips. Thus, spread out over the whole surface, I poured 1.09518cm of water, divided by 36 tips equals .3042173mm per tip.

                YoshuY 1 Reply Last reply
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                • P pkkrusty

                  Old topic, but my test shows .304mm per tip. I calculated the surface area as 54.7854cm^2, which is 5cm x 11cm minus the small rounded corners. I slowly poured 60cc water and counted 36 tips. Thus, spread out over the whole surface, I poured 1.09518cm of water, divided by 36 tips equals .3042173mm per tip.

                  YoshuY Offline
                  YoshuY Offline
                  Yoshu
                  wrote on last edited by
                  #8
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