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Old 14th December 2013, 05:15 PM   #71
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Quote:
Originally Posted by hulsebos View Post
Nice to see that my simple program is of use here!
Thanks for making it available.
It is very handy to have a portable program like this.

You may be interested to know that an English translation of one of your ESL presentations was also posted here on diyAudio.
Full-Range Dutch ESL Project File translated
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Old 13th June 2014, 12:44 PM   #72
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Quote:
Originally Posted by bolserst View Post
My apologies...forgot about the other *.rar archive file.

The other part you need is:
http://www.edohulsebos.nl/apps/esl_seg_ui.part02.rar

Place both the *.exe file I linked to in the first post and this *.rar archive in the same folder before running the *.exe self-extracting archive.
I'm hoping someone can tell me what I'm doing wrong (I have Windows 7).
I downloaded both files into a folder and ran the exe. file; which created another folder with a bunch of subfiles but I can't find or open anything that looks like a spreadsheet calculator. Any suggestions?
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Old 13th June 2014, 01:06 PM   #73
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First you unzip both files part 1&2 into the same folder.
Then you double click on the file that appears to be still zipped, This is a self extracting file and will install the program.

However this program will have either dutch or german dialog but it is very easy to decipher.

There is also a version that was posted in this thread that has been converted to english as well and those files can be found here,

Segmented Wire Stator ESL simulator (esl_seg_ui)

These work the same way, You simply unzip all of the files in the same folder and there will be one file that appears to be unzipped after you are done and you execute that file and it will install the program.

It has been a while since I have done this and a possible alternative would be to unzip all but the First file and then just simply execute the first file and it will install the program.
This is only for the english version.

I hope that helps!!

jer
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Old 13th June 2014, 02:19 PM   #74
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Quote:
Originally Posted by geraldfryjr View Post
First you unzip both files part 1&2 into the same folder.
Then you double click on the file that appears to be still zipped, This is a self extracting file and will install the program.

However this program will have either dutch or german dialog but it is very easy to decipher.

There is also a version that was posted in this thread that has been converted to english as well and those files can be found here,

Segmented Wire Stator ESL simulator (esl_seg_ui)

These work the same way, You simply unzip all of the files in the same folder and there will be one file that appears to be unzipped after you are done and you execute that file and it will install the program.

It has been a while since I have done this and a possible alternative would be to unzip all but the First file and then just simply execute the first file and it will install the program.
This is only for the english version.

I hope that helps!!

jer
I downloaded and unzipped all files, the exe. file (no. 1), followed the prompts to install the files individually, and when the install was done; NOTHING... no spread sheet in the folder or on the desktop or anywhere I look. What did I do wrong?
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Old 13th June 2014, 03:37 PM   #75
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Quote:
Originally Posted by CharlieM View Post
I downloaded both files into a folder and ran the exe. file; which created another folder with a bunch of subfiles but I can't find or open anything that looks like a spreadsheet calculator. Any suggestions?
The file to run the calculator is a Matlab *.exe file, not a spreadsheet.
I'll grab some step-by-step screenshots during setup of the English version Bazukaz provided in post #39.

Attachment #1: Shows the 7 *.zip files downloaded to a local directory on your computer.
Attachment #2: Shows the result of unzipping the 7 files; 1 *.exe file and 6 *.rar files.
Attachment #3: Double click on the *.exe file to run the extractor. The default directory for the extraction is the current directory.
Attachment #4: After the extractor runs, double click on the "esl_seg_ui" directory
Attachment #5: Locate the "esl_seg_ui.exe" Matlab executable
Attachment #6: After the GUI loads, click the [Simulate ESL] button to calculate response.
Attached Images
File Type: gif esl_seg_ui_EN_install_01.gif (19.6 KB, 241 views)
File Type: gif esl_seg_ui_EN_install_02.gif (19.5 KB, 238 views)
File Type: gif esl_seg_ui_EN_install_03.gif (42.6 KB, 238 views)
File Type: gif esl_seg_ui_EN_install_04.gif (21.3 KB, 238 views)
File Type: gif esl_seg_ui_EN_install_05.gif (55.6 KB, 234 views)
File Type: gif esl_seg_ui_EN_install_06.gif (71.4 KB, 52 views)
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Old 13th June 2014, 04:28 PM   #76
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OK I have it now. Thanks Steve !
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Old 23rd November 2016, 10:16 AM   #77
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Hi everyone,

I'm in the process of building a rather large (wide) esl and I made this simulation. I am wondering if wire diameter matters? Or is it only segment surface that matters for simulation? (calculation of total capacity) I'm asking myself this because I use a smaller diameter wire than normally used by DIY-ers (1,1 mm)

Also the wires are extending about 10 cm on both ends of the segment so this would increase the segment capacity a little. I'm wondering if one should measure (check) capacitances of the segments or can I just rely on the calculations of this program?

Click the image to open in full size.Click the image to open in full size.
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Old 23rd November 2016, 05:14 PM   #78
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Quote:
Originally Posted by silvershadelynx View Post
… I am wondering if wire diameter matters? Or is it only segment surface that matters for simulation? (calculation of total capacity)
It is only the capacitance that matters for segmentation response. The capacitance is calculated using flat plate formula. The spacing between the plates is 2x the D/S spacing. For wire stators D/S = distance from diaphragm to the outer diameter of the wire insulation.

More details on D/S spacing for wire stators here: Sanity check for wire stator
More details on calculating capacitance between stators here: First time ESL builder

Quote:
the wires are extending about 10 cm on both ends of the segment so this would increase the segment capacity a little. I'm wondering if one should measure (check) capacitances of the segments or can I just rely on the calculations of this program
This extra extension will increase capacitance of the segments, but will cause only minor changes in response. If you want to try to model with capacitance that more closely represents your actual build, you can do this by adjusting the height to match capacitance. I recommend measuring capacitance of your total panel (ie all segments connected together) rather than individual segments. Then calculate panel height needed to achieve this capacitance for your given stator width and D/S spacing. If you want, you can use the Excel spreadsheet posted here: experiences with ESL directivity? to do the calculations for you.

Attachment 1: Entering your panel dimensions into the spreadsheet, you can see that total panel capacitance would be 1967pF.
Attachment 2: Suppose you measure your panel capacitance and it is instead 2200pF. By adjusting the panel height to 2.015m you will match the measured capacitance value. Then, use this 2.015m height value in your esl_seg_ui simulation. If the response changes more than you would like, you can adjust your segmentation resistor values to compensate.

Remember that your diaphragm will have a resonance which will boost the low frequencies. So, you may not need to extend the response so low in frequency with segmentation. Moving the LF roll off point up in frequency will boost the overall sensitivity. The downside to doing this is that the high frequency dispersion will not be quite as good(for the same total panel width). This is an inherent tradeoff with segmentation…sensitivity vs high frequency dispersion. You will need to strike a compromise between an ESL that plays usefully loud and one that has good enough dispersion for a nice sized sweet spot and balanced room ambiance. If you want to keep the same high frequency dispersion you have, but move the LF roll off point up in frequency, you do this by reducing the overall width of the panel.
Attached Images
File Type: png esl_seg_q_01.png (74.0 KB, 23 views)
File Type: png esl_seg_q_02.png (75.0 KB, 24 views)

Last edited by bolserst; 23rd November 2016 at 05:18 PM.
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Old 23rd November 2016, 09:58 PM   #79
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Hi Bolserst,

thanks for your excellent reply and suggestions. As I already built the stators I will keep this configuration. I will check how it sounds, I'm very curious if it will imporove sound compared to an unsegmented stator.
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Old 24th November 2016, 11:10 AM   #80
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Hi, I realized that my D/S (2 mm) equals gap width between stator wires (PVC to PVC spacing). I'm wondering if that would affect sensitivity and and calculated capacities in the simulation software?
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