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LDC5072-Q1: SENSOR-DESIGN-TOOL error when designing angular off-axis

Christian Mathews
Prodigy 10 points
Part Number: LDC5072-Q1

SensorDesign1.zip

Tool/software:

Hello, 

I am trying to design an angular off-axis sensor, but the design tool stopped working. 

It worked the first time, but after I made adjustments to some "Mechanical Design" values, the calculation does not work anymore - even with the old values I used the first calculation. 

The log-file states: 

GUI Version:0.2
Index exceeds the number of array elements. Index must not exceed 15.
Error in MINEEXCITATION (line 125)
...(some more, but I guess, thats the important one)

I tired deleting the output files from the first calculation, restarting the tool several time, always the same problem. 

Has anyone seen this before? Have I entered completely wrong values or is this tool related? 

Thanks for your support! 

This is my latest design: 

  • 0
    TI__Mastermind 43470 points

    Hi Christian,

    I will see if I can reproduce this on my side as well.  Can you please provide your full settings?  The easiest way is to use the "save design" button in the GUI and attach that file here.  Thanks!  

  • 0 in reply to Eddie LaCost
    Prodigy 10 points

    Hi Eddie, thanks for your quick reply. 
    I always had issues with the "Save Design" since the loading never worked. It loaded some of my settings, like the sensor type and the arc length, but everything else was not loaded like I saved it and stayed at default. But for now, I haven't touched anything on the other tabs, only changing the mechanical design parameters (to what's in the picture). 
    I will upload my save file anyway.
    Thanks for your help!

    6472.SensorDesign1.zip

  • 0 in reply to Christian Mathews
    TI__Mastermind 43470 points

    Hi Christian,

    Just wanted to give you an update.  I have not been able to look into this issue yet, but plan to take a look tomorrow and will provide an update.  Sorry for the delay.  

  • 0 in reply to Eddie LaCost
    Prodigy 10 points

    No Problem, thanks for your help! Greatly appreciated!

  • 0 in reply to Eddie LaCost
    Prodigy 10 points

    Hi Eddie, thanks again for your support! I was wondering if you already had the chance to take a look into this issue? We greatly appreciate any support on this! 

  • 0 in reply to Christian Mathews
    TI__Mastermind 43470 points

    Hi Christian,

    I see that if I change the electrical to mechanical ratio to 1, it is able to generate the design.  I am not sure why this limitation is occuring yet.  I will be out of office the rest of the week, but will give you an update on Monday.  

  • 0 in reply to Eddie LaCost
    TI__Mastermind 43470 points

    Christian,

    For your design to work, you would need to set the ratio to 1 to generate the off axis coil.  This will not generate the correct target for you though.  In order to have a 5 pole target, you should set the tool back to angular co-axial and set the ratio to 5.  This will generate the 5 pole target and you can ignore the coil that is generated.  

    When you use the angular off axis option, the tool is trying to generate a coil with 1 pole for each 72 degrees.  For example, if you generate a coil with ratio of 2, you will see that the coil is 144 degrees.  The tool fails when ratio is 5 because this ends up being a full 360 and angular co axial should be used instead.  

    Please give this a try and let me know your results.