Author Topic: changing the rigol DS1052E to DS1102E using USB , the dummy guide  (Read 1081712 times)

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Offline dimlow

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #200 on: October 18, 2010, 01:41:52 pm »
That looks like PSU noise to me
 

Offline crmaris

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #201 on: October 18, 2010, 02:18:14 pm »
I also think that the Rigol is fine and the signal I get is noise from the PSU of the Load tester. Although the PSU of the load tester is an SFX Silverstone 450 which has much lower ripple (I have tested/reviewed it) than the one shown in Rigols screen.
 

Offline Fraser

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #202 on: October 18, 2010, 04:45:25 pm »

 crmaris,

I am an analogue RF tech (with some Digital knowledge thrown in) so forgive me if don't have a firm grasp of all things PC SMPSU related. I do have some thoughts on your situation however.

My experience of SMPSU's is that good ones can be very RF quiet and 'not so good' ones can be a disaster on the Radio frequency Interference (RFI) front. You are connecting a 100/20 MHz bandwidth scope to a product that uses high speed power switching in it's design. The output power rails are designed to meet certain regulation and ripple specifications but what about switching transients and induced RFI on the rails or casing ? RFI can also be induced into test cables spatially and appear as noise on the scope. You may be seeing high frequency switching noise on the Rigol that is beyond the frequency response of your USB scope. I have seen SMPSU's totally trash the receive performance of high end HF receivers due to their radiated or induced RFI.

This may not be the issue in your case but it is a possibility all the same.


Cogito, ergo sum
 

Offline pete456

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #203 on: October 18, 2010, 11:21:28 pm »
Thanks to all in this forum,
another success with HW 58 (2.04SP1) - a very painless and smooth upgrade thanks to the very clear instructions.
Cheers,
Pete
« Last Edit: October 19, 2010, 12:23:22 am by pete456 »
 

Offline dimlow

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #204 on: October 18, 2010, 11:39:31 pm »
Out of curiosity i just looked up the stingray scope specs, from this page, im assuming you have this one.
http://www.easysync-ltd.com/product/520/ds1m12.html



Features:

·    Combined Oscilloscope, Data Logger, Signal Generator, Spectrum Analyzer,
     Voltage and Frequency Meter functions
·    12 Bit ADC Resolution
·    Simultaneous sampling on both channels.
·    32k Byte Waveform buffer
·    Oscilloscope Mode - 20M S/s sampling rate ( repetitive ) 1M S/s native
·    DataLogger Mode - up to 50k S/s 12-bit data streaming simultaneously on both
     channels
·    Maximum input voltage +/- 50V
·    AC / DC Coupling
·    Edge, min/max,  pulse width and delayed trigger modes
·    Analog Bandwidth 250KHz
·    Inbuilt 10-bit waveform generator with +/- 3.5v output range and 1k buffer.
·    Hardware upgradeable over USB
·    Self Powered USB Interface ( 250mA )
·    EasyScope II  ( Windows ) software (see downloads)
·    EasyLogger ( Windows ) software (see downloads)
·    Interface DLL's and code samples for 3rd party developers included
·    Instrument carrying bag included
·    Attractive enclosure with rubberized inmoulds
·    Dimensions W: 116mm x H: 30mm x D: 100mm


the key point i see here is "Analog Bandwidth 250KHz"

With this you are not going to see any high frequency spikes and it will make your PSU look great! with the Rigol you will see a lot more noise.

250KHz verses 100MHz basically you have a much better pair of eyes and you can now see the detail, the view is no longer so blurred.
 

Offline crmaris

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #205 on: October 19, 2010, 08:13:36 am »
Yeap I agree that the Stingray is very limited compared to the Rigol but for PSU testing is fine. A big number of major PSU  reviewers has a stingray. Mainly because it has a very good PC interface and the screenshots are much better (and easier as a process) than the ones of the Rigol.

Finally I saw in this thread some of the Rigols that had bad calibration data and their symptoms are not the case in my oscilloscope. So something else is happening.

Thank you all for your help!
 

Offline slburris

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #206 on: October 19, 2010, 02:27:08 pm »
My apologies up front to those of you who own Stingrays and Nanos as this is a
mini rant!

At 1M samples/sec, the Stingray is in the same class of scopes as the DSO nano.
It's not as cute, but has more memory and is dual channel and can do some
lightweight waveform generation.  But it's still a toy!

For the cost, you could easily get a working 100Mhz Tektronix scope off of Ebay.
Or you would be better off getting the DSO Nano 2 whenever it comes out:

http://iteadstudio.com/copied/multi-channel-pocket-oscilloscope-ds0203-preview/

If you insist on a USB scope, how about this one for $194 ($1.50 more than the Stingray)?
150M samples/sec (75M if using both channels), 60Mhz analog bandwidth.
Seems like a much better deal than the Stingray, especially for a buck
and a half more...

http://circuitspecialists.com/prod.itml/icOid/10215

Scott

 

Offline Fraser

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #207 on: October 19, 2010, 07:32:17 pm »
This discussion of the SMPSU 'noise' has been interesting and I don't wish to spoil the fun but as it is apparent that the Rigol DSO is not suffering as a result of the 100 MHz upgrade, this SMPSU issue may need a new thread so as to keep this one on topic ?
 
« Last Edit: October 19, 2010, 07:36:38 pm by Aurora »
Cogito, ergo sum
 

Offline cicastol

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #208 on: October 22, 2010, 10:20:15 am »
Here another success hw58 2.04sp1  ;D ;D

Thanks to all involved in this hack!! ;)
 

Offline Arsenal

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #209 on: October 22, 2010, 07:50:42 pm »
Worked for me as well on my today received DS1052E, hw version 58 and 2.04 SP1. Thank you very much for your hard work everyone.

Don't have a very sharp signal source right now, but my MSP430 turned from 5.4ns rise- and 6.5ns falltime to 4.2ns rise- and 5.4ns falltime, so I guess thats showing enough difference to prove it worked.

And no noticable noise :)
 

Offline SirDan

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #210 on: October 25, 2010, 04:45:08 am »
Hello All,

A successful upgrade to the 100Mhz club from HW:57 and FW:00.02.04.00.03
Unit purchased from http://www.tequipment.net/RigolDS1052E.html 3 weeks ago.
I used shafri's VB utillity and was able to skip a bunch of steps from the dummy guide.
I re-upgraded back to FW:00.02.04.00.03 just in case it makes a difference.
Did the self calibration with probes unplugged and everything is great.

Thanks to polossatik for the guide!
 

Offline cicastol

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #211 on: October 26, 2010, 05:05:07 pm »
I've just tested the rigol with a sub nS pulse gen. (2n2369 avalanche pulser) here is the results!

On equivalent time averaged i could get 2nS rise time,pretty impressive.
« Last Edit: October 26, 2010, 06:03:31 pm by cicastol »
 

Offline dimlow

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #212 on: October 26, 2010, 10:49:42 pm »
It would be interesting if you could test it with the 150 Mhz ie change the serial to DS1152E  and see if it changes anything.
 

Offline Time

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #213 on: October 26, 2010, 11:27:11 pm »
with that avalanche pulser you should be able to get as low as a few hundred pico-seconds in rise and fall times.
-Time
 

Offline cicastol

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #214 on: October 27, 2010, 07:26:01 am »
It would be interesting if you could test it with the 150 Mhz ie change the serial to DS1152E  and see if it changes anything.
Sure it would be interesting but i don't want to play/risk with other FW downgrade-upgrade  ;)
 

Online Mechatrommer

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #215 on: October 27, 2010, 10:27:46 am »
with that avalanche pulser you should be able to get as low as a few hundred pico-seconds in rise and fall times.
any link of reference or where to get this item?
It's extremely difficult to start life.. one features of nature.. physical laws are mathematical theory of great beauty... You may wonder Why? our knowledge shows that nature is so constructed. We simply have to accept it. One could describe the situation by saying that... (Paul Dirac)
 

Offline jahonen

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #216 on: October 27, 2010, 10:45:36 am »
with that avalanche pulser you should be able to get as low as a few hundred pico-seconds in rise and fall times.
any link of reference or where to get this item?


It is described in Linear Technology AN-47, also see my measurements here.

Regards,
Janne
 

Online Mechatrommer

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #217 on: October 27, 2010, 10:56:50 am »
It is described in Linear Technology AN-47, also see my measurements here.
Regards,
Janne
any chance of buying this item from you? or elsewhere? ;)
i'm thinking if there is a fast pulser like this that we can set the pulse interval, voltage level (cmos, ttl, 1-12V etc), and even the rise time configurable through a rotating knob maybe, that will be handy to test something, not just rigol. but not really sure if its practical or not, just my thought.
« Last Edit: October 27, 2010, 11:44:30 am by shafri »
It's extremely difficult to start life.. one features of nature.. physical laws are mathematical theory of great beauty... You may wonder Why? our knowledge shows that nature is so constructed. We simply have to accept it. One could describe the situation by saying that... (Paul Dirac)
 

Online Hideki

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #218 on: October 27, 2010, 11:16:19 am »
I'm happy to report yet another successful 100MHz upgrade on a HW:58 2.04 SP1 device.

Awesome!

Thank you all.
 

Offline cicastol

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #219 on: October 27, 2010, 12:32:00 pm »
Quote
It is described in Linear Technology AN-47, also see my measurements here.

Regards,
Janne
WOW! your's pulser PCB is an ultra pro setup very nice,mine is made very cheap.... :-X


Here the schematics of the pulser i've used (taken from the net) assembled with less than 2$,the only problem is to find the right voltage to start the 2n2369 to avalanche,mine started at 88v but vary from sample to sample.
The 50Ohm resistor on the emitter should be made by 4 resistor in parallel to lower the inductance,on the input i've used 5pF.
« Last Edit: October 27, 2010, 07:32:25 pm by cicastol »
 

Offline ceut

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #220 on: October 27, 2010, 03:50:28 pm »
Happy story for me too  ;)
I have juste received my DS1052E, and after using the great Shafri software, I'm a happy DS1102E user/Hardware rev. 58.
Thanks for everyone on this topic who have given information !
 :)

The only thing is that I can't test if all is ok at very high frequency because I have nothing for that :D
« Last Edit: October 27, 2010, 05:20:50 pm by ceut »
 

Offline AlphZeta

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #221 on: October 29, 2010, 12:44:44 pm »
It looks like the success rate is back on the right track again.
 

Offline 8008

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Another sucessful update with HW58...
« Reply #222 on: October 29, 2010, 06:09:45 pm »
I can also report a successful upgrade to HW58 with latest firmware 02.04.01.02, scope was bought on ebay two weeks ago...
Have no tool to check the smallest rise times, but everything seems ok...

I did it with OpenSuse Linux, serial line cable 1:1 with only pins 2,3,5 connected, cutecom terminal emulator and oktada as hex file editor.
The first self calibration after conversion attempt freezed the scope :-( but after switch on and off and trying self calibration again, it worked successful.

Dennis
« Last Edit: October 29, 2010, 06:14:19 pm by 8008 »
 

Offline ht_vale

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #223 on: October 29, 2010, 09:34:10 pm »
thanks guys! upgrade successful without any issue.. serial > 1239****

bye
Vale
 

Offline cicastol

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Re: changing the rigol DS1052E to DS1102E using USB , the dummy guide
« Reply #224 on: October 30, 2010, 06:18:53 pm »
Tested the pulse generator with a DIY 1K resistor probe directly attached on 50ohm cox terminated here the results!! :o

Equivalent time averaged 16X,real time 16X,and difference between standard probe on ch1 and direct connection on ch2
I think the  supplied probes are limiting the scope
« Last Edit: October 30, 2010, 08:20:08 pm by cicastol »
 


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