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Trace: • Simple ELECTROSTATIC simulation in FEMM - step-by-step tutorial
simple_electrostatic_simulation_in_femm_-_step-by-step_tutorial

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simple_electrostatic_simulation_in_femm_-_step-by-step_tutorial [2021/05/11 21:37]
stanzurek [Step 15 - plot data along line] 		simple_electrostatic_simulation_in_femm_-_step-by-step_tutorial [2021/05/11 22:08] (current)
stanzurek [Step 19 - that's it!]
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 {{enter_point.png}} Fig. 3-2. Entering point with coordinates (0,0) {{enter_point.png}} Fig. 3-2. Entering point with coordinates (0,0)
  
-Click on the ''Zoom extents'' button (Fig. 3-3), which is the third one (white rectangle with a magnifying glass). (//If not sure - hover a mouse over the buttons and see their description in the botoom left of the FEMM window.//) +Click on the ''Zoom extents'' button (Fig. 3-3), which is the third one (white rectangle with a magnifying glass). (//If not sure - hover a mouse over the buttons and see their description in the bottom left of the FEMM window.//) 
  
 Then click on the ''Zoom out'' button once (magnifying glass with a minus). Then click on the ''Zoom out'' button once (magnifying glass with a minus).
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 The path can end at the same point it started. The path can end at the same point it started.
  
-To plot, press the "graph" icon (Fig. 15-1). A pop-up window will open and the variable to be plotted can be selected, Fig. 15-2. N+To plot, press the "graph" icon (Fig. 15-1). A pop-up window will open and the variable to be plotted can be selected. The graph will be plotted in a new window.
  
 Note that there is an option to export/write the data to a file, which can be then used with any spreadsheet software. Note that there is an option to export/write the data to a file, which can be then used with any spreadsheet software.
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-{{el/line_el2.png?500}} Fig. 15-2. Select data to plot or export to file +{{el/line_el2.png?500}} Fig. 15-2. Plotted graph
- +
-The graph will be opened in a new window. For AC simulations, black curve means the absolute value (total amplitude), blue is the "real" component (0 deg), and green is the "imaginary" component (90 deg). +
- +
-{{eddy_current_graph.png?500}} Fig. 15-3. New window with plotted data+
  
 ---- ----
-==== Step 16 - block integral ====+==== Step 16 - line integral ====
  
-Some values can be integrated over the whole blocks. To select a block use the "green square" button, and then click anywhere within a block of interest, Fig. 16-1.+Some values can be integrated over lines or blocks. Draw a line, and then chose the integral icon, Fig. 16-1.
  
-Then click on the "integral" icon.+The calculated voltage is exactly -1 V, as defined in the conductors. Because the line was drawn from left to right, from "zero" to "positive", so the integral is evaluated correctly. 
 + 
 +{{el/line_integral_el.png?500}} Fig. 16-1. Select block
  
-{{block_integral1.png?500}} Fig. 16-1. Select block 
  
-A pop-up window will appear (Fig. 16-2), and the drop-down list can be used to select the value of interest. After accepting, the value will be evaluated and shown in another pop-up window, Fig. 16-3. 
  
-{{block_integral2.png}} Fig. 16-2. Select type of integral  
  
-{{block_integral3.png}} Fig. 16-3. Calculated value of integral 
  
 ---- ----
 ==== Step 17 - conductor info ==== ==== Step 17 - conductor info ====
  
-The losses in the ciruict (energised coil) can be integrated with the block method described above, but much reacher information is provided with the "Circuit properties" icon, Fig. 17-1. +Info about the given conductor with the "Conductor properties" icon, Fig. 17-1.  
 + 
 +If there is more than one conductor defined then it can be selected from the drop-down list.
  
-If there is more than one current/circuit defined then it can be selected from the drop-down list.+Capacitance is charge over voltage, C = q/V, and because the voltage was set to 1 V, the capacitance of this capacitor is 3.6e-13 F, or 0.36 pF.
  
-{{conductor_info.png?600}} Fig. 17-1. Circuit properties+{{el/conductor_properties_el.png?600}} Fig. 17-1. Conductor properties
  
 ---- ----
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 If snap-to-grid is enabled then only the grid positions will be available. If snap-to-grid is enabled then only the grid positions will be available.
  
-{{data_at_any_point.png}} Fig. 18-1. Click anywhere to get values+{{el/point_props_el.png}} Fig. 18-1. Click anywhere to get values
  
 ---- ----
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 ==== Step 19 - that's it! ==== ==== Step 19 - that's it! ====
  
-And that's all - now you can run a simple FEMM magnetics simulation!+And that's all - now you can run a simple FEMM electrostatic simulation!
  
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simple_electrostatic_simulation_in_femm_-_step-by-step_tutorial.1620761878.txt.gz · Last modified: 2021/05/11 21:37 by stanzurek

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