Quote:
Originally Posted by barry12345
It is a closed system for ease of description .So what does go in the exact same amount that goes out. Actually that is just a distraction from the problem.
There just are too many variables plus unknowns to use other than actual measurement. From what information has been presented. The air velocity above the water also makes it difficult. A calibrated laser fired in might eliminate the air velocity factor. In high wind velocity water is blown flat for a period. So you might get a reading of the level. Before the surface reaction starts to establish itself.
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I looked at both laser and sonar sensors for the water. The biggest problem is that the water surface isn't consistent enough, it surges from second to second. I tried using the sonar sensor but couldn't get consistent readings as the sensor wasn't feeding data quickly enough, I got too many high points and couldn't get reliable data to sift through. As for the laser sensor, I was told by the company which was going to sell it to me that I'd end up with a mountain of useless data because of the misting.
Because of schedule I decided to mark the end of the gutters with graduations using a 3D printed jig. The jig will fit each version of the gutters and can be anchored to certain datum features. We filmed the flow from several different angles to counter any perspective problems. So we have baseline data, but I'm not happy with it.
We'll have to figure out the next steps once the prototype unit gets built.
I'm still of the opinion that a tell tale, after-the-fact measurement would be the best, but aside from the chemicals and pastes which are toxic to everyone in the building, I'm at a loss.