Oscilloscope Tutorial Part 3 - Advanced functions

[mixas6678]

thank you for these videos!!

[ndpratas]

Hey man, I know people say this all the time, But I found one of your videos and have become an addict. You explaint sooo well. Why arent my university teachers like you... Anyway THANK YOU

[mattynogood]

great stuff!! much appreciated!!

[fingerboy18]

@somebody301 A spectrum analyzer displays the frequencies contained in a signal. It does a "Fast Fourier Transform" to convert the signal from the time domain to the frequency domain. It's important to RF engineering or for testing the frequency response of an amplifier. A scope is much more useful if you have a choice between the two.

[somebody301]

Hi, I heard about spectrum analizer, it works similiar to oscilloscopes or not? and, what is a logic analyzer?

[DubCampbell]

You are an excellent teacher! I'm a 64 year old musician/amateur (ham) radio enthusiast and electronics hobbiest and I don't own an oscilloscope. Since I spend more time at home these days, I figure it's time to make or buy a scope and a tone generator to assist me in a wide variety of repairs and prototype projects. What would be a low cost scope for monitoring audio modulation on a 30 Megahertz AM signal? What about 450 Mhz? Can I use a PC/software for this?

[Afrotechmods]

@DubCampbell Low cost for 30Mhz... would have to be a used 200+Mhz analog scope from eBay. 450Mhz is impossible for less than many thousands of dollars - you might find a spectrum analyzer useful though.

[thenaimis]

Thanks for all the fantastic videos. I've only been watching a short while, but in the process of searching for a 4-channel scope I ended up back at your channel. Already have a 2-chn DSO in an HP 16500A frame, but building a 3-phase BLDC controller has prompted me to look for something a bit newer. 25-year old test equipment presents interesting difficulties :-)

[AcousticBruce]

What if I want to capture the charge of a capacitor on a dc circuit with a 5 second charge? How can you have the scope capture this and have it stay on the screen so you can study it? I have the same scope.

[Afrotechmods]

@AcousticBruce Go to your trigger settings and set it to single shot. Then a rising edge for charging or a falling edge for discharging. Then change the threshold of the trigger to be whatever you need it to be. Change the time base to 1 second per division or whatever. Then if you push run-stop you can set the scope to be ready to trigger on the voltage transient.

[AcousticBruce]

@Afrotechmods Ok am pretty sure that is is on TYPE: Edge Slope:Rising Trig Mode:Single

What I am finding is that when I change the trig mode from auto to single, it freezes and I am unsure of what is going on. Now I haven't used run/stop yet, this is just automatic. It seems that no matter what it is froze regardless of any more input voltage.

So main question... if it is froze and you want another reading / reset after you change the trigger. How do you do this? Thanks again.

[mummoforce]

Nice, this was actually more instructing than listening to my incompetent teacher :D

[darkerthebetter]

thanks for these vids, found them really helpful as im about to buy a digital scope

[hrbear]

Bravo :) 

[slicker41]

my teacher doesnt know what a oscilloscope is

[slicker41]

my teacher does know what a oscilloscope is

[prayag123456789]

eeeeeexcellent.

[thomas3120]

Excellent tutorials! :) Really want to get one :D

[hrbear]

@thomas3120 I wish you to do so :)

[Ursenfuns]

All physic teachers should be into starcraft

[lucasmontec]

You are awesome! Moar tutorials! Moar!

[AZOHA]

You're great person,Thank you for these toturials.

[whiskeyify]

I'm not trying to advertise for Sencore...but I used to own one and it's a great scope.

You set it on auto and hardly ever have to touch it...just touch your test point and it automatically adjusts itself. It displays the waveform and underneath that is a digital readout that tells you the DC voltage and AC voltage.

[dragondeth48]

I like my computer

*put's glasses on*

complicated.

[70CadillacMan]

Can an oscilloscope be used for NDT Ultrasonic testing or eddy current testing?

[nemocheerio]

Thanks for making and posting these. I learned a lot.

[antofro]

Very well spoken presentation. Theory is all good and abstract until circuits works. Thanks so much for you contribution. I have learned a lot from your videos.

[TheMisszzzzz]

thanks a lot. i am learning this part, and u did a better job than my teacher!!!

[83ishgirl]

Way awesome information! Thanks. :) I have an audio electronics troubleshooting class this spring semester and saw that we are supposed to use and be able read these scopes and I had no idea what one was until now. Thanks for the preview of what will be in store in my class to come in a couple of weeks.

[siddharthchauhan83]

Excellent!! I wish you were teaching us at my University. This tutorial just made everything so simple I am doing my Masters in wireless communications but i have no experience with oscilloscopes, unfortunately our prof dint have time at all to explain the functioning of one. This video tutorial really helped me in a big way ...many thanks.

[murphyld66]

Your demonstration videos are, as Monty Burns says, "Excellent."

[thesurvivalist98]

Thanks, this really helped me,as when I started watching the first video, I didn't know what an ocillisocope was. I just subbed!

[judgenap]

keep it coming . I did learn more

[ducttaperulestheworl]

sweet tutorials :)

watched them all

now I'm saving up for an oscilloscope to 'play' with :)

[saltedcuts]

grreat series...keep up the good work...thanks

[rafaelvasquez30]

Excelent image, good sound. A super presentation!! Welldone!

[judgenap]

Brilliant thanks again

[mk767mk]

Great series

[levimariah]

i watched all 3 o'scope videos,I don't know much about electronics but am learning I find these videos VERY informative!!!!!

[alabader741]

1:24 Excellent !

Mr burns from the simpson LOL

[sergo40]

@alabader741 i was thinking exactly the same! xD

[Danger9584]

this is the videos dhat describes oscillioscopes best on the whole Youtube!!!!!!!

Awesome!!!

[bbqbspareribs]

pretty much hilarious. +1

[SubaruB4RSK]

I have another question lol I need to find the peak-peak voltage of something should the number but jumping around when the probe is connected?

Because I have a project coming up and the PK-PK voltage has a big outcome over the overall loudness of the sound.

[Afrotechmods]

@SubaruB4RSK Don't rely solely on automatic measuring features. Use the cursors to measure things manually, or just calculate things from the number of volts per division.

[SubaruB4RSK]

@Afrotechmods

OK it just gets a little confusing because of that, What I need to measure is the mV Peak-Peak voltage of some filter caps for a organ should be a range of 1mV to about 25 or so. My reading seems to be a little high it seems

[Nabo00o]

@Afrotechmods

I agree on that, once you get used to reading the divisions you have super tool in your hands. Just place a 1 ohm resistor in series with a load and you can read the amps peak to peak directly (or lower the ohms and then recalculate the amps).

[vidm96]

he should become a teacher

[SubaruB4RSK]

I have a question I have the same scope as you but can I use it as a logic analyzer? Trying to find which are the data pins on a LCD because I have no data sheet and the company went under 3 years ago.

[Afrotechmods]

It doesn't really have anything in terms of logic analyzer functionality. It'll just display the binary waveforms on screen and you'll have to decode stuff by hand.

[SubaruB4RSK]

the thing is what I saw on the display looked nothing like a binary waveform it's a custom display with only 8 pins out of the standard 16 pins. The must have must be

1 Vss (ground) 2 Vdd (+5v) 3 RS 4 E 5 DB4 6 DB5 7 DB6 8 DB7

it's just I don't know what order is what.

[feki00]

kthxbai

also great tutorials

[zoltar74]

Terrific video (the whole set). You most certainly have as knack for teaching.

[vdub350]

I found this scope for $289. I thought it was too cheap compared to other scopes, but watching your videos it seems pretty good.

[djd259th]

Great series. If you don't already, you should teach.

[Afrotechmods]

I think i'd enjoy it and be good at it, but there's just no way I'd be content with a teacher's salary. Thank you for the compliment though.

[NonNonConformist]

@Afrotechmods What do you do?

Great tuts by the way.

[KedmenecMartin]

I heard that Oscillospcoes can read pitch from an instrument...how can I e.g. tune my drums with a Oscilloscope?

[Afrotechmods]

I didn't know you could tune drums. With an electric guitar you could view the amplified signal on an oscilloscope and measure the frequency. Different notes have different frequencies and you can google for a chart.

[KedmenecMartin]

I saw a movie about the SONOR-drums factory here on youtube.There was a guy from the factory on the end who tuned each drum with a microphone pluged into the oscilloscope.

(sorry for my very bad english)

[ToddWalther]

If you try plugging your Oscilloscopes in parallel/series (don't remember) with an active microphone, you could be able to measure the frequency. That's what my physic's teacher have done. We could also measure our voices!

[stevenv1992]

Do you have a tutorial on an RF generator?

[rckysev]

thanks for useful video, i was wondering if ext trigger can be used to display voltage time series on two different channels (which may not necessarily be time series in trigger cable)

[goompapa]

Really appreciate this. Nice work!

Now to get my teacher fired!

[emiltech2]

Sir, Hi again, can you please help me build a timer from 1 minute to 5 minutes, and with a trigger that can be set to 1 to 5 trigger before it activates the timer. thanks

[shirleygilbert]

wow great job :)

The best tut i could find :D

A big thank you to you

[skierplaterandy]

HAHAHAH I LOVED THAT LAST LINE!!!!!!

yah, after these videos, i need to get myself a scope.

im thinking i might be doing some microcontroller work, but i dont want to spend much more than 150 if i can help it, can i get a decent digital scope used? or will i get ripped off?

[Afrotechmods]

You can definitely get a decent digital scope used. I did! But not for $150.... more like $300. If you are working with micros and only have a $150 budget, you might be best off with a USB based scope.

[skierplaterandy]

yah, ill just have to save up for a decent one, it is not really essential for the moment, and looking at the specs of the usb scopes i dont really want to spend 80 dollars on those (like 80 dollars for an 8 volt limited scope)

[system0system0]

Can you have the currents wave form on oscil...

[Afrotechmods]

Sort of. You will need a special accessory called a current probe. These are typically expensive. You can do it ghetto style though, using a shunt resistor. Take a resistor of around 0.1 ohms and measure the voltage on both sides of the resistor. Then use the subtract function on the scope to display the difference in voltage across the resistor. Then from Ohm's law, volts / 0.1 ohms = the current

[crsskimoto]

Thanks,your videos are really kick ass and easy to understand.

Greetings from BRAZIL.

[vigilante76]

Excellllent!

[teamfab]

Great videos man, very enjoyable to watch....

[bricktop199]

Good stuff! Chances are now we know more about oscilloscopes than our teacher... Ain't that the F'n truth!!!

[TrickyNekro]

I'm from SOR and man!!! Well Done!!! Mind if you also add this tutorial there, in the main page????

[Afrotechmods]

Glad you liked it. SOR are welcome to add any of my videos they want to the website

[jayagk]

Great job, dude you know what you're doing.

[RisingEdge111]

great! thank you

[sOnarPL]

5 stars!

[wojtuniakfrog]

@sOnarPL Except you can't rate YT videos with stars.