Ansys Maxwell SheetScan Tool: Import Curves of Material Data Characteristics

Hello everyone, my name is David Giglio with Ozen Engineering and in this video I will show you how to use the Ansys Maxwell Sheet Scan tool to import data sets of material characteristics such as complex permeability versus frequency, BH curves or power versus B curves.

Let's say for this P-Core using power electronics applications in wireless power transfer or charging, we have this Ferrix cube material 3F46 material specification and we want to use this complex permeability as a function of frequency curve.

So take a screenshot of the plot, save the image and in Maxwell go to Project Data Sets then select Sheet Scan. This window will pop up and you need to set up the sheet scan file. I already have it set up and saved so I'll open it and show you and the process is simple.

So first step is on the ribbon select Picture, load the picture you saved and created from the material specification sheet then in Coordinate System on the ribbon select Coordinate System Properties and then select the material specification sheet.

Then in the ribbon select Picture, load the picture you saved and then select the material specification sheet. Then we need to define the grid so we need to select three points.

First point could be the lower left corner of the plot, second point could be the top left corner of the plot and third point could be the top right corner of the plot and the sheet scanner will show you the x and y coordinates for each point selected and for each point selected we need to manually input the x and y values.

Set the scaling to logarithmic for the x-axis and y-axis and then on the ribbon select Curve Change Settings we need to define the x-axis y-axis data so input the names.

Units use we're using SI units, so you need to apply scaling factor 1000 for frequency since it's in kilohertz and for the scaling of y-axis is one because the units are henrys per meter and don't need a scaling factor.

Okay now we need to change that here in the form to Günther 漢字 and say no, whatever is given then we'll call it and say 철서.

So what you're doing is going to define the curve by saying L by center over depth and increase value to the fuels up on y-axis 1 so from here you're going to say 12 improve on that. To do that you can have to make it fashionable by saying no, use like you know you're going to an Tjän.

In that case you can tweak that here. So now you have two steps so the first step is to carefully select points along the plot. So from left to right, enter points. The more accurate you enter the points, the more accurate the data set will be.

And the left side shows the data set table created by selecting all the points. Then save the file and then on the ribbon select File, export and this file, this data will be exported into a data set, which we choose to be a tab file because tab files are used to import data into Ansys Maxwell.

So once that is done, we can click out of here and we have the data set as a tab file. We can now import the data set, choose the file to import, which is this one by the way. I already did import it, so I'll just show you how it looks.

Right, so in the sheet scan, we set the axes to logarithmic scale, but in Ansys Maxwell, it shows up as a linear plot, which doesn't matter because it's still used the same way. So done.

Now select the material and in Properties, edit material and here is for relative permeability, we'll use the variable for the value.

So piecewise linear function and on the left side of the argument, we put the name of the data set and the right side of the argument is the intrinsic variable frequency for the edcurrent solver. So the dollar sign is here because this is a global data set.

So, so, so depending on the frequency used in the edcurrent solver, the theta set will be used to determine the relative permeability of the data set, right. I'm going to go back, so the relative permeability has two components real and imaginary, right.

So I created the curve for the real component of the relative permeability, right. So this is given us real permeability. So you can create, you can create a separate data set for the imaginary part, but I'm using the real part. So that is all for this video.

In the next video, I will show how to set up the Corliss model. So we have for electric steel uses the Bertotti Corliss model and PowerFerrite uses the Steinmetz Corliss model.

And for both models, we need to use Corliss coefficients and I will show how Ansys Maxwell can be used to extract those coefficients by just using data sets from the material characteristics from the manufacturer's data sheet.

So by using the sheet alone, the plot, it could be starting from a PDF or an image, we can extract the Corliss coefficients. That will be for the next video. So if you liked this video, please like the video, subscribe to the channel. Tell us what you think.

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