Oscilloscope Probe Tips and Ground Lead Pitfalls
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- čas přidán 18. 04. 2018
- Probe accessories can cause distortion on your signal!
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Probe tips and ground lead accessories might seem perfect because they make the probe to DUT connection easier, but do you know what they are doing to your signal?
In this episode of Probing Pitfalls, you’ll learn about some of the issues that longer probe accessories can present. You will discover that the longer the probe leads are, the more bandwidth is reduced and loading is presented. This means that the signal you see on screen will be distorted compared to what is actually in your device. This will make it so that any measurements you make on that signal are completely inaccurate, which throws off all your testing.
By the end of this episode, you’ll know when to use the different probe accessory options. It’s all dependent on what kind of testing you are trying to do, whether it be detailed analysis or just some quick, general troubleshooting.
Stay tuned for future Probing Pitfalls episodes covering common probing mistakes and how to avoid them to ensure you are making accurate measurements.
You can ask us questions on Instagram: @keysightoscilloscopes / keysightoscilloscopes
Twitter: @DanielBogdanoff / danielbogdanoff
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The mixed signal oscilloscope we used:
www.keysight.com/en/pcx-x20521...
(The Keysight Infiniium S-Series Oscilloscope)
The S-Series allows you to see the truest representation of your signal with the industry’s best signal integrity: 10-bit ADC, low noise front end, superior time base, signal processing in hardware, and responsive deep memory.
Probing Pitfalls is hosted by Erin East and Melissa Spencer. The video series covers common oscilloscope probe pitfalls, the impact they have on your measurements, and how avoiding them can improve your test results. You’ll learn proper probing practices that will save you time in validating and debugging your designs, plus improve your overall knowledge and skill in the test lab.
#oscilloscope #oscilloscopes #electronics #electricalengineering #oscilloscopeprobing #probeproblems #probing #probe #oscilloscopeprobes #probeaccessories #groundlead #probetip #probingpitfalls - Věda a technologie
That was really helpful to see the actual examples. Thanks.
Nicely described, great presentation.
Great demo ... and such a nice presenter.
I knew all this stuff already but it's nice to have it explained just one more time with beautiful intelligent women.
Was wondering if you guys may have any vids for IDing a grounding fault with a prob?
Great example. When parasites aren't infesting the system (I see on some days why Bell Labs and others invented or used the anechoic chamber Faraday cage and some even have like 3 layers of Faraday cages literally)... this is neat to see just how the carrier current (hardwired) system effects signals integrity especially as we move into the higher frequency ranges more with COTS devices and proprietary devices. Thanks for sharing!
Had to comment also regarding would have been nice, for me at least, if the current of injury (term taken from Dr. Robert O'Becker regarding bone/regenerative healing) devices to accelerate wound in general healing were on the market post wounded. Would be nice to find a way to attract metal fragments out also without disrupting body function adversely or at least long term. Then bio-equivalent heal up after metal even from screws and plates are removed. Seems like areas of opportunity for a startup or a medical device manufacturer.
And the most funny part is you never know how it really looks because every measurement influences the signal. Reminds me of a cat in a box. Don't you love RF voodoo !
Flex nose grabbers, I love how those are named!
We have a different but related problem with this on my end called shorting. My family has a bad history of shaking. Only getting worse as we age (its a miracle some of us can still solder...). One good thing that I like is that some probes (ie. N2870A) comes with an adhesive copper pad. It also came with plastic tips matching an IC's lead width being probed. The probe itself has a nice slot on the side to fit a flat copper ground lead with the plastic tip attached. (see keysight img link) Is there an accessory kit/s that I can be directed to for any probe containing these? The other probes we've got (N2890A) does not seem to have this. Link: s7.images.keysight.com/is/image/Keysight/PROD-1661803-01?$MAIN$
Can impedance mismatch in digital signals with fast rise or fall time be the reason of ringing or overshoot in edges of pulse?
Yep!
Received
hi can I use 150 MHz probe on 50MHz oscilloscope?
Yep!
@@KeysightLabs thank u...
CAN I SIGN YOUR CAST?!?!?
I just got it taken off, finally!
Why doesn't keysight just manufacture active probes and do away with passive ones? That should make the active probes cheaper.
We do make our own active probes, but often passive probes are good enough for the measurement at hand. A passive probe will always be cheaper than a comparable active probe.
Good vid but I was waiting for"and this one time at band camp" sorry ..