Doug Ford shows us how he designed his own 1000:1 high voltage oscilloscope probe.
and the Oscilloscope probe tutorial:
Nguồn:https://madisonrep.org/
Xem Thêm Bài Viết Khác:https://madisonrep.org/cong-nghe
Doug Ford shows us how he designed his own 1000:1 high voltage oscilloscope probe.
and the Oscilloscope probe tutorial:
Nguồn:https://madisonrep.org/
Xem Thêm Bài Viết Khác:https://madisonrep.org/cong-nghe
april segura
January 30, 2020Dear sir
I have a Philips pm 3200 0 – 10 MHz osiloscoop but i dont have the PROBES can you pls help me out with the chematic of the probes . Kinds regards
Mohammed Jawad For Electronics and Physics
January 30, 2020that sparrow make me mad 😒
James skippinhopper
January 30, 2020YEP!!!
captain skeptical
January 30, 2020eat your heart out tektronix :)))
Thiago Lucas
January 30, 2020How do ensure the protection of this probe? Is it electrically isolated from the high voltage side? Or your oscilloscope takes care of it with possible internal optocoupler? Is it possible to use this voltage probe with arduino? If yes, do I have to use an isolated component to separate the high voltage side from the low voltage side?
Matthias H.
January 30, 2020Thank you very much for this video
c muller
January 30, 2020I just found that old video and immediately recognized the voice. Hey it's the microphone guy!
Laharl Krichevskoy
January 30, 2020Just checking my Favorites list, saw this one down the bottom of the list. Salutations from the year 2018.
Greg Feneis
January 30, 2020Whoa, Dave. This one's pretty old.
Jean Pierre Daviau
January 30, 20201 Meg resistor in parallel with à 56k in parallel. For a 1:1000 reading
Jean Pierre Daviau
January 30, 2020We would have liked seeing it tested.
Jean Pierre Daviau
January 30, 2020The red cable is a high voltage cable? Does it have a ground wire?
Gear Wrench87
January 30, 2020what happens if you put two 10:1 attenuators in series? does it make it 20:1?
RepairAllTV
January 30, 2020????
Alperen Akküncü
January 30, 202010 puff?
Michael Nobibux
January 30, 2020Cool,but good probes use coax with a resistive center conductor to reduce ringing when used with a high impedance scope input.A resistive conductor distributes the total resistance (usually around 100-200 ohms) over its length.A lumped (discrete) resistor on the end of a piece of regular coax will not noticeably reduce ringing.Also a hi-Z probe should be well shielded and then there is the 'high voltage' issue….
LM
January 30, 2020Great idea and all but, with all the respect, half of the speech I did not understand, could you tell me please what is that "tail wire" for? and how this unit is attached to the oscilloscope and the probe? I just got part of the description… Thanks in advance.
08Ultrasonic
January 30, 2020I'm interested by the cal factor. What does this represent exactly? Is it the ratio of input to output voltage?
I assume that you'll be attaching your probe to an oscilloscope, which will have 10-15pF capacitor and a 1M ohm resistor within that scope. It looks like you've omitted that out of your design, which also might be a reason why the cal factor alters at 200Hz.
James skippinhopper
January 30, 2020Yep
WALLDORF ELECTRON_CO
January 30, 2020My oscilloscope is a PC type that connects via USB. For testing your average low voltage signals and frequencies it works well and responds fast! However, I've built some "high" voltage DC power circuits and voltage doublers varying from 100VDC to 350VDC. I have a two-channel OWON VDS-1022 which says the maximum input voltage is 40Volts from what I can see.
So how could I test that? Could I modify the probe or use a resistor or two? I'm not talking KiloVolts here!
IngenieroCristian
January 30, 2020It's an excelente design, but I think the construción is not safe.
TheCrazyStudent
January 30, 2020Nice video. I guess it must be very important to properly clean away every little particle of grease, dirt and flux residues from the whole RC network before potting it in order to minimize the risk of arcing?
jeanious2009
January 30, 2020that looks freaking dangerous. I think I'll pay the quadzillion dollar probe and be safe. lol.
DiyMech
January 30, 2020So, with a known calibrated HV source and calibrated meter/scope, what's the accuracy ?
Johan Sagaert
January 30, 2020Hmmm, did you try it at 20KV ? I would prefer a long one without copper shield, and add an extra grounding crocko clip.
Xiomara Cruz Rodríguez
January 30, 2020Hi, what type of BNC connector you used?
Kaledius
January 30, 2020Hi, How do you measure a higher voltage, like 50kv that is very low frequency so we cant use the propes as antenna pickups..?
Turncoat
January 30, 2020flippin bird!!!!
José Federico Ramos Ortega
January 30, 2020Do you think it is safe to use these probes to check the voltage of windings of one SMPS?
DarkLevis
January 30, 2020I learn electric power engineering, which has a lot to do with high voltage and I really liked this!!
Wish they showed similar stuff in university too =/
YummyMercury
January 30, 2020"Half a quadzillion dollars"
I laughed at that!
Drmanbearpig
January 30, 2020I have a question about digital oscilloscopes. Do you know what bandwidth would be needed to measure the peak resonance of a coil rated around 3000kHz? I'm not sure if the bandwidth is actually the specifications of the frequency range it can detect, or if it is something else. If you have any direction I could go in trying to find the right oscilloscope, I would greatly appreciate it. Thanks
Manuel Sanchez
January 30, 2020How about a DIY 4-channel digital oscilloscope tutorial? 😛
EEVblog
January 30, 2020@henryjarias Thanks to Doug Ford of course!
henryjarias
January 30, 2020Hi, Dave. I'm a professor (eng.) in Venezuela. I've learned a lot of things from your EEVBlog. I got surprised to see this video about HV. Not every electronics engineer is an enthusiast of HV stuff…so, thanks for this rather informative video.
Henry
gmcjetpilot
January 30, 2020Dave how about a DIY Active Oscilloscope probe or a RF Probe? Please!
doodoodood
January 30, 2020This was an EXCELLENT video. More like this one pleaase!!!
Ja Ro
January 30, 2020@Vlakpage check digikey part: 445-2363-1-ND
Jan Tichavský
January 30, 2020Those small caps are 3kV rated? It doesn't look like that.
Recently I needed to get rid of the scope ground connection for measuring HVDC up to 1000V and current on the positive side. So I designed (a bit amateurish) universal analog isolator with current input, it should isolate 1500V minimum. It can measure from mV to kV with great linearity depending on the input resistors. But I didn't include those caps accross resistors, I should read more about them.
Phil B
January 30, 2020Nice video indeed Dave & Doug. Thanks for sharing & much appreciated.