Author Topic: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)  (Read 234917 times)

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Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #375 on: September 02, 2019, 05:25:50 am »
Hi,

VDS_C2_23 Russian special compiled version (extended calibrator keys).

https://ufile.io/jr26sfbl

I hope you can write us a tutorial "How to calibrate a VDS1022"

good luck
« Last Edit: September 02, 2019, 05:27:33 am by camomille »
 
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Offline indman

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #376 on: November 05, 2019, 05:01:24 pm »
Hi guys!
I got my long expected OWON VDS1022 without the letter "I"!
I also got a set of extra parts ADUM3160 and
DCP0205, which was ordered by Aliexpress. After removing 8 SMD short jumpers, i soldered these chips in place and got a working model VDS1022I   :D
A photo of the board before the upgrade i attach to my message.
Next i installed the software version 1.0.23, which with the kind help of respected Gyro and camomille i supplemented with Russian language, beautiful icons and which i very much like!  :-+ 
Sorry about my English, i 'm using a translator! :palm:
Next, i decided to test the actual bandwidth of the oscilloscope input path. For this purpose I used a professional Russian high-frequency generator Г4-148 (100MHz) and a load of 50 ohms.
Just to follow up, I ran a frequency scan today as I indicated. I used an Adret 730A synthesized sig gen with 50 ohm through-terminator directly at the scope input. At 1Vrms signal level. Averaging was turned on:
Channel 1 was -3dB at 34.7MHz
Channel 2 was -3dB at 31.2MHz
My oscilloscope has about the same bandwidth of up to 32 MHz in both channels. This can be seen in my screenshots.
Next, I wanted to check how accurately the instrument measures AC and DC voltage, how accurate the calibration is, and can you trust the readings of this item?
I gave the instrument 30 minutes to warm up and stabilize the temperature and then did the calibration procedure via the Utilities menu.
To begin with, I connected the inputs of the CH1 and CH2 test probes to the output of the calibrator 5V 1kHz. Also to monitor the voltage level at this output, i connected my Brymen867. As you can see in the photo, the oscilloscope measured Vrms and Vpp quite accurately. The divider on the probes was in position x10. Next, i switched the divider to position x1 and connected my sample DC voltage source, which is assembled on the available chip AD584, to the test probes.
First I measured the 2.499V voltage at the 1V/del limit. The default calibration is pretty well tuned, I didn 't adjust anything extra. Vtop=2.480V for both channels.
Then I measured the same voltage at 500mV/del. Vtop=2.360V for CH1 and Vtop=2.340V for CH2, CorseGain=0.962(1) and CorseGain=0.965(2)
I changed the values CorseGain=0 .973 (1) and CorseGain=0 .976 (2). I then saved the calibration values with the SaveCalibration button and the measured voltage became Vtop = 2.480V for both channels. Next I measured the voltage 5.00V,7.50V and 10.00V and got quite convincing results. This is not bad for this class of USB oscilloscope!

Now I have a few questions about the design of the program interface. By what principle do you select the red beam color for the first channel and the yellow beam color for the second channel? Is it possible to change this palette to another palette? I would prefer to have a green beam on the first channel, as on an analog instrument.
In this shell, the green color has an FFT operation.
« Last Edit: November 05, 2019, 08:19:38 pm by indman »
 

Offline GyroTopic starter

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #377 on: November 05, 2019, 06:34:18 pm »
Hi indman,

I'm glad that you got your scope and managed to carry out the 'I' modification successfully. That's a pretty impressive montage of trace pictures - you've been having fun!  :-+

 I haven't played with the coarse gain adjustments yet. I'm surprised that you managed to get such close DC measurement results with the 8 bit ADCs - you must have achieved almost exact 1 mV per bit matching with the ADC and internal reference.

With regard to the trace colours. I haven't tried modifying them myself.  the only factor really tying them with the colour stripes of the probes. I'm not sure if you've found it yet, but green is already used by the maths/FFT display, so that would need to be changed too.

I'm am sure it must be possible to change the trace colours. Looking through the preference files, e.g. /configuration/com.owon.uppersoft.dso/pref.properties I can see RGB colours (for up to four traces (different models) in plain text format. I think I maybe saw it in other pref files in the folder tree too, such as inside the VDS_C2_23.jar file (eg. /com.owon.uppersoft.dso/pref/scopeInfo.ini and maybe others) which you would need to unzip, modify and re-zipped as for other mods.

As I said, I haven't played with these settings, but I wonder if they affect just the trace colours, or the channel settings boxes (bottom left) too. As long as you keep backups, I don't see how you could cause any trouble by experimenting.
« Last Edit: November 05, 2019, 06:36:13 pm by Gyro »
Best Regards, Chris
 

Offline indman

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #378 on: November 05, 2019, 07:47:39 pm »
Gyro thanks for the answer! I myself was pleasantly surprised that the entry-level oscilloscope was accurate enough for radio-loving tasks to take DC and AC measurements.
Yes, I already wrote in my previous message that FFT operations have a green display color. It 's much easier for me to deal with the impressive montage of trace pictures than it is to deal with the software compilation. :) If anyone is able to change the color palette, I would be grateful. And I think I 'm not the only one.

I have another question about how the program works. If I freeze the picture on the display with the Pause button and then press it again in 1-2 minutes, the program makes a reconnection. Do you have such a problem?
 

Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #379 on: November 07, 2019, 10:17:03 am »
Hi,

I tried to change the color of channel 1 to green, but without success.
I do not confess defeated, but it's not easy, I'll try again at my lost moments.
It seems even more difficult to change the color of the FFT curve.
What is certain is that only 3 colors are known for the afterglow for the 2-channel model.
red (FF0000)
yellow (FFFF00)
green (00FF00)
I'll let you know if I'm getting results

regards
 
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Offline GyroTopic starter

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #380 on: November 07, 2019, 02:51:27 pm »
Yes, I suspected that it might not be so easy because the two channel settings boxes (bottom left) have gradient fill, not solid colour.

This was actually a question that I remember asking Owon support a few years ago, because I thought the Red would be awkward to read. They said that they couldn't do it (which didn't mean much, as they wouldn't want to spend much time on anything that wasn't a bug fix anyway), but in practice I get on with it just fine.

That was in the days before camomille's magic fingers though!  :)
Best Regards, Chris
 

Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #381 on: November 07, 2019, 03:18:10 pm »
Hello Gyro,

I found several locations in the program with "color.red" or "RGB (" FF0000 ") that seemed to me to match, I tried to change with" color.green "or" RGB ("00FF00"),
but no change, always the red channel 1.
I have to put my finger on the right place, but you have to be a magician or have a lot of luck.
I search by period because it takes my head.

Alain
 
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Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #382 on: November 11, 2019, 11:42:59 am »
Hello,

it's moving slowly but surely

Here are the changes to have channel 1 in green and math in red,

For trace and label channel 1 Green Just 1 line to modified
in com.owon.vds.foundation_1.0.0/com/owon/uppersoft/dso/wf/ChannelInfo
line 120 replace "FF0000" by "00FF00"

For trace and label Math Red Just 1 line to modified
in com.owon.vds.foundation_1.0.0/com/owon/uppersoft/dso/function/perspective/CompositeWaveForm
line 74 replace Color.green by Color.red

for FFT red Just 2 lines to modified
in com.owon.vds.foundation_1.0.0\com\owon\uppersoft\dso\function\FFTView
for label red
line 405 replace Color.GREEN by Color.RED
for trace red
line 486 replace Color.green by Color.red
870296-0
870314-1
we must now change the 2 png for channel 1 (bottom left) select / unselect from red to green,
but to do it takes time (and courage),difficult because of the color gradient

« Last Edit: November 11, 2019, 02:18:41 pm by camomille »
 
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Offline indman

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #383 on: November 11, 2019, 12:25:52 pm »
camomille, You 're a wizard, I admire your work every time! :-+
 

Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #384 on: November 11, 2019, 01:43:02 pm »
@Gyro and indman

Thank you for your compliments, but it is only time and gray matter and a little intuition.

I do not use the VDS1022 enough and I count on you to see if all the colors match your expectations.
if you do not want to modify your versions, recover the 3 CLASS files in the JAR.

Link for JAR file :

https://ufile.io/frjbv6yk

Regards

Alain
« Last Edit: November 11, 2019, 01:53:26 pm by camomille »
 
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Offline GyroTopic starter

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #385 on: November 11, 2019, 03:02:30 pm »
Excellent intuition Alain,

Sadly, though my intuition isn't bad, my grey matter is distinctly leaky!

Anyway, to do the easy bit... I have attached updated images, relevant to the CH1 green change, to the ball1 icon, and the Menu Channel settings and Math settings icons. I think they are the only ones affected. [Edit: The last two ONLY if you are using my revised menu icons, otherwise, just ball1.png]

As usual, these overwrite the image files in the com/owon/uppersoft/dso/image folder within the JAR file. I have included backups of the original files with an 'OLD' 'PREV'prefix.

Regards,
Chris
« Last Edit: November 11, 2019, 03:22:29 pm by Gyro »
Best Regards, Chris
 
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Offline indman

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #386 on: November 11, 2019, 03:49:17 pm »
Guys, big thanks this color update works fine and I like it! :-+
I don 't have very good vision, so green is important to me, just like the benefits of a large display window. I also replaced the rings of red with green at one of the probes.
In addition, now even my USB Tester by color corresponds to the color palette Owon ;D  In the photo, I showed the amount of current my oscillograph consumes after the upgrade.
« Last Edit: November 11, 2019, 03:54:48 pm by indman »
 

Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #387 on: November 11, 2019, 04:04:25 pm »
To replace uns1.png and sel1.png
 
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Offline GyroTopic starter

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #388 on: November 11, 2019, 05:31:25 pm »
Ah, I never noticed those in the skins folders! Thanks Alain.  :-+
Best Regards, Chris
 

Offline indman

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #389 on: November 11, 2019, 06:33:48 pm »
I can do something in a photoshop, too  :)
For black and blue themes
 

Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #390 on: November 11, 2019, 07:25:41 pm »
It's a lot better than me, you got them incorporated or do you want me to redo a new compilation?
 

Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #391 on: November 11, 2019, 07:47:09 pm »
Version indman (photoshop) 

sel1 / uns1 Black and Blue skin

https://ufile.io/p599w6ot


« Last Edit: November 12, 2019, 07:07:53 am by camomille »
 

Offline indman

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #392 on: November 11, 2019, 08:25:58 pm »
It's a lot better than me, you got them incorporated or do you want me to redo a new compilation?
camomille, thanks, I learned how to replace files with new ones in the JAR archive  :)
Now everything looks and works perfectly! Respect!
 

Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #393 on: November 12, 2019, 07:10:22 am »

I changed my last link because there were some warnings at the compilation.
 

Offline indman

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #394 on: November 12, 2019, 08:13:46 am »
Hi camomille!
Don 't think I 'm too brazen and a lot of things I want :palm:
I have one question about translating the interface into Russian language.
Is it possible to change messages in this window to Cyrillic?
 

Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #395 on: November 12, 2019, 08:15:47 am »
For indman

For your reboot problem after a break, I do not know this problem because I do not use the VDS1022
but I think the track to follow would be rather the USB bus controllers with the power option try unchecked.

 
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Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #396 on: November 12, 2019, 08:19:06 am »
it does not bother me, I will look for the OFFLINE
 

Offline rsjsouza

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #397 on: November 12, 2019, 03:53:32 pm »
Yesterday I used a promotion on Aliexpress and pulled the trigger on a VDS1022I not in small part due to the developments done on this thread. It is pretty cool to see the work done by the community to make such neat unit be even more usable. Thank you!
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Offline camomille

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #398 on: November 12, 2019, 04:25:01 pm »
Hello,

Welcome rsjsouza, when you have your device, do not hesitate to ask for advice for the installation of the software.

For indman,

I have located the place where I stored the strings to display in the "TriggerStatus" window, but for now it returns an error message if I modify the text.
I hope to understand  :box:

Regards

Alain
 
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Offline GyroTopic starter

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #399 on: November 12, 2019, 07:57:17 pm »
@camomille:

Alain, you also need a green ball1.png for the Channel 1 trigger source... attached.

I've also attached the entire image folder for the JAR which includes all of the icons, including the above and your skin files, together with my revised Menu icons (Reply #376) modified for Green channel 1.
Best Regards, Chris
 


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