Products > Test Equipment
Rigol HDO1000 and HDO4000 12bit oscilloscopes launched in China
skander36:
Yes, QuantAsylum 403 Analyzer for Audio Spectrum is a better tool for audio than an oscilloscope.
--- Quote from: Frunse on June 25, 2024, 09:59:34 am ---
The Rigol 924 and Lower Versions have to little Displays for my Eyes ;) and only 1,25 Gs on one Channel so on 4 Channels not much Left right? like on DS1054Z!
Robert
--- End quote ---
Indeed for me 7" and 8 bit is a no go from now.
Frunse:
Got the DHO1000 Scope from Saelig @ Friday.
so far i am happy with it.
Did Firmwareupdate to the newest 00.02.13.00.07
Also the Hack applyied, works realy well.
BW -3dB @330MHz and still @ 500MHz the Signal dont look to bad.
Signal was from TINY SA Ultra 500MHz Sinewave @ 70mvpp.
For an bought 70MHz Scope not bad @ all ;)
For now the only Bug i got was with Web Controll.
The Scope Window change every some Minutes back to Start Window if i changed the Windows size off DHO1000.
May be an Firefox Problem??? Has anyone else the same Problem?? with other Web Browser?
The same Problem with Microsoft EDGE Webbrowser.
Got me also the Noctua 60mm Fans for Silent Upgrade but will do it after some Time Using the Scope.
The orig. are hearable but not realy bad sounding @ all.
2024.07.04
Installed the Noctua 60x25mm 12DC Fan's and now more silence with more Air is moving if i feel it right.
Original only 60x15 Fans.
I am Happy with it ;)
The Probes ar not adequate for the 330MHz -3dB now but i will buy this next Month or so:
Sensepeek 6026 PCBite 2x SQ500 Set
https://www.batronix.com/versand/messtechnik/platinenhalter/sensepeek/6026-PCBite-kit-SQ500.html
With additional 2 SQ500 Probes
Robert
vokars:
""For audio electronics I will choose Siglent first, because of it's Bode plot capabilities. It can use two channels to analyze and generate Bode plots simultaneous on both channels on a stereo system (pic3)."
This was my only Concern, i wisch i had this on Rigol too but i have an QuantAsylum 403 Analyzer for Audio Spectrum to do great Graphs and FFT. "
Another option that I am using for free for the frequency response / Bode plot is python scripting / pyvisa for that. The remote scpi interface of the Rigol DHO1000 works fine and is well specified. At the moment I am using a sweep, download the 2 measurement channels (channel A direct from the signal generator, channel B from DUT) from the scope, and then FFT the B/A ratio.
But a simple scan via scpi remote interface like that done by all of these embedded Bode plot implementations on other scopes would also be an option. By the way: Siglent Bode's plots seem to be rather slow.
Frunse:
Hi, thats sounds good and very interesting.
I never worked with Python right now so i need to look into it i guess.
I have an Siglent SDG2042X (Hacked to 120MHz) with LAN and USB, may be this both Devices could worked together with Pyton.
For Bode Plotting.
Found this as an Starting Point ;)
https://www.siglenteu.com/application-note/programming-example-sdg-waveform-creation-with-python-and-sockets-no-visa/
https://www.siglenteu.com/application-note/programming-example-create-a-stair-step-waveform-using-python-and-pyvisa-using-lan/
I know there is on Githup something like this for the older Rigol DS1054Z Oszilloskopes need to look in to that too.
https://github.com/jbtronics/DS1054_BodePlotter
Would be realy nice.
https://github.com/python-control/python-control this seems also for that Kind of using ;)
https://staff.fnwi.uva.nl/r.vandenboomgaard/SP20162017/Python/bodeplots.html
Need to check that.
Again something new i need to learn ;)
Probably the Pythonscript could also easely used on an Raspberry 5 i guess with an touch Display.
vokars:
"Need to check that."
I am using the toolchain NI Visa + Anaconda + Pyvisa
https://www.ni.com/de/support/downloads/drivers/download.ni-visa.html
https://www.anaconda.com/download
https://pypi.org/project/PyVISA/
https://tw.rigol.com/tw/Images/DHO10004000_ProgrammingGuide_EN_tcm17-5395.pdf
from Anaconda Prompt type: jupyter notebook
That starts the jupyter server and opens a navigation page in the web browser. There you can load existing or create new notebooks. A notebook has cells that can include python code. With shift + enter the code can be executed.
typical start is:
import pyvisa
import matplotlib.pyplot as plt
rm = pyvisa.ResourceManager()
print(rm)
print(rm.list_resources())
scope=rm.open_resource(<your scope visa id string>)
scope.read_termination = '\n'
print(scope.query('*IDN?'))
Now you can query the scope using SCPI command strings as described in the Rigol Programming Guide.
Note that for query waveforms in raw mode the auto trigger must be stopped first. To check, wether the scope actually has stopped, you can poll with :TRIGger:STATus?
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