Christopher Marquart, PE Posted October 27, 2022 Share Posted October 27, 2022 Using formulas with trended data (temperature) I created a signal representing the density of a fluid in a vessel. I have reason to believe ambient conditions are impacting the temperature of the liquid inside of a level bridle thus changing the liquid properties. Using level measurements in the vessel and level bridle and the density/ specific gravity calculated for the liquid in the vessel (based on actual vessel temperature) I was able to calculate the density/ SG of the of the liquid in the level bridles based on the variation in level measurement. The equation for density is fairly complicated so manipulating the equation solving for temperature isn't a realistic option for me. Is there a way to have Seeq calculate/ trend a signal representing the temperature when I have a signal representing the solution (density) with temperature being the only variable? The equation I'm working with is shown below. I have the values for all of the constants and I'm wanting Seeq to calculate the value of T. 1 Link to comment Share on other sites More sharing options...

Seeq Team Synjen Marrocco Posted November 4, 2022 Seeq Team Share Posted November 4, 2022 Hi Christopher, Seeq does not have a non-linear equation editor/solver built-in to do what you are looking for. Of course, Seeq Data Lab is python based, so there is likely a library that you could use to solve you equation there. That said, I did poke around and find an equation rearranger that looks like it might do what you need. If am am understanding your request correctly, everything in your equation is either a constant or another signal already in Seeq. If that is is the case, you should be able just plug the rearranged equation into a Seeq formula to get your density as a function of temp (and level is sounds like). https://www.wolframalpha.com/widgets/view.jsp?id=4be4308d0f9d17d1da68eea39de9b2ce I definitely recommend confirming the accuracy. Link to comment Share on other sites More sharing options...

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