Dave talks about Tektronix's new unreleased AGO3000 Gravity Compensated Oscilloscope with a high precision TCXO timebase with 2G tip-over gravity compensation.
Datasheet: http://info.tek.com/rs/tektronix/images/AGO3000_Gravity-Compensated-Oscilloscope_DataSheet.pdf
Preliminary product launch page: http://info.tek.com/ago3000-scope.html
Forum: http://www.eevblog.com/forum/blog/eevblab-8-new-tektronix-ago3000-oscilloscope/'>http://www.eevblog.com/forum/blog/eevblab-8-new-tektronix-ago3000-oscilloscope/
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Datasheet: http://info.tek.com/rs/tektronix/images/AGO3000_Gravity-Compensated-Oscilloscope_DataSheet.pdf
Preliminary product launch page: http://info.tek.com/ago3000-scope.html
Forum: http://www.eevblog.com/forum/blog/eevblab-8-new-tektronix-ago3000-oscilloscope/'>http://www.eevblog.com/forum/blog/eevblab-8-new-tektronix-ago3000-oscilloscope/
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Hi, welcome to another Ev Blab, but this one should be reasonably quick. It comes from the forum yet again. the forum never ceases to amaze me. The manufacturers cannot hide anything from the forum members.
They just find everything before they're released. It's fantastic. Awesome guys! Um, it turns out that um, Tektronix, it looks like they're releasing. I don't know when, but they're going to be releasing a new Uh scope.
Its base. It looks to be based on the Mdo 3000, which you've seen a lot of. It's called the Ago 3000 series data sheet and somebody on the Eev blog forum so I forget who it is. Found the linkedin, the data sheet, or a pre-release draft data sheet to the new Ago 3000 series.
From what I can see in all the specs, it looks like it's basically exactly the same as an Mdo 3000, with one major difference, which we'll take a look at. Now this isn't surprising because some agilent keysight never get used to keysight. Keysight just released. of course.
There were recently released their Um 3000 T series the Touch one which you've seen in a previous video and that was kind of sort of a knee-jerk reaction response to Tech's Mdo Um 3 000. They tried to one-up them and the manufacturers tried to continually try to one-up each other. It's relentless and it looks like Tech are going to respond to that sooner. The new Ago 3000 Series Um scope is is it's a a what's called a gravity compensated scope and this one.
I find interesting because I did a video on this um, I don't know. what was it. You know, nine months 12 months ago? I'll link it in. um, down below.
I might even maybe edit in a little thingo from it. Um, where gravity can have an effect on reference crystal oscillators and I've got my this is linked to the previous video. I'll do it in a bit more detail, but um, I've got my Csiro Rubidium frequency standard here and I've got my Um. Agilent frequency counter here.
and what's it? Sorry, I can't see, I can't see on the Lcd. what's it displaying now? Okay, it's displaying 999. It's pretty close to the nominal 10 megahertz. Okay, but if I or 998 or whatever it was, put the tilting bail up like that.
What do we get? We get 999. it actually changes when you tilt it and it's going to change fairly drastically. well, drastically if I turn it upside down. What's it reading? now? there you go, 989.
It's changed by 10 digits there. Look, hopefully you can see that. All right? Sorry, my leads aren't long enough here, but we turn that over and ta-dah and that's you should see it changed by. I don't know 10.
um, least significant digits there. or uh, you know, 0.01 Hertz, which is about one part per billion. If I've got my decimal places wrong, I often mix them up anyway. one part per billion and that's what this effect is is called the 2g tip over effect.
And as I said done a previous video on it. so check it out. But it's interesting that tech are releasing a new scope that actually compensates for this wellness. Well, not really well known, but in the Um, you know the industry I come from seismic industry very well known that the orientation of crystal changes based on the gravitational field. That's what happens. It's a real phenomenon. It's not much we're talking like typical in the order of you know, 1 to 10 parts per billion. So you need like a an 11 or 12 digit counter to actually see it.
That's why it's not normally a problem in scopes, but what tech have done with this new one is the only difference I can see between the Mdo 3000 and the new Ago 3000. What does Ago stand for? I don't know. Advanced gravity oscilloscope or something? Anyway, um yeah, figure out your own name. Um, they've added a Tc Exo reference oscillator because this is the other thing Keysight added.
This is the thing Keysight added to their Uh 3000 touch series was a higher stability reference Oscillator and tech have obviously gone well. We're going after that market two of the high stability oscillators. So they've not only whacked in a Tcxo which has, um, it's a real Schmick one .05 ppm. Typical.
Keysight went from like a five digit frequency counter to an eight digit frequency counter. Seems like the new Tech scope has a 12 digit frequency counter. Awesome. Everyone's one-upping themselves on the frequency counters.
Fantastic. So when you've got a 12-digit frequency camera like this, it matters. The orange. The orientation of the thing matters just doing the tilting bail like that matters.
So you know major applications for this, like airborne applications when you know you're using a scope in a plane for military applications and stuff like that the industry I come from vibration is a big thing that can also affect um, your horizontal time base, which is, uh, derived from the internal reference in this thing. So it's all great to have a Tc temperature compensated crystal oscillator in there and a real precise one. But if you tip the feed up and it's it's going to change, Well, that can be a huge deal. So what they've got is, let me read all.
The Wank is proud to introduce the world's Versacellas capable of limit eliminating the effect of gravity um, through a patented electromechanical gravitational field sensor and extensive calibration. The gravitational field sensor detects the orientation of the scope's crystal that's not rocket science and then corrects for any error. So they've obviously got some sort of lookup table which they programmed during the calibration and it says that they have a nine Day factory calibration on this new Ago series scope as opposed to a not a couple of hours which it takes them to calibrate the Mdo 3000. There you go.
I'm so unheard of. Levels of time-based precision, blah blah blah. So it's a gravity compensated oscilloscope? Awesome. And well, I can see everyone trying to one-up themselves. Keysight will probably go. Oh crap. we have to now release a gravity compensated scope. Rigal will probably figure out a cheap way to introduce it in there because you could probably use it with a Um, you know, just a cheap Mems accelerometer.
You can probably do it with that. They're using some sort of electro mechanical thing in this new scope to go along with the the specs here, which I'll link in. gravity compensation? Um, 0.01 parts per billion. You know how I told you that it's typically going to change by one part per billion or ten one to ten if you flip the Um, the scope or the frequency count, or your oscillator upside down? Well, they're claiming .01 parts per billion maximum for a plus minus 2.5 g range over a 5 to 500 hertz vibration.
So there you go. Um, I have no idea when it's coming out. I'll try and get one because I'd love to have a look at the gravitational mechanical gravitational field sensor thingo in here. Awesome Tektronix leading the field yet again.
Gravity Compensation Probably look out for gravity compensation in upcoming you know, in the next year or two Keysight and Rigol scopes too. So there you go. That's just quick lab. I think I waffled too much.
As usual. I'll link in the data sheet down below. Check it out, Get: I'm rather excited by gravity compensated scopes. I want extra precision in my scopes.
You know, tilting bail like that can affect your horizontal time base? No thanks. Give me gravity compensation anyway. I'll see if I can get one and we'll do a tear down. catch you next time.
Why I have a gut feeling that this TCXO+gravity compensation can be done cheap on any projects using DS3231 (32768Hz TCXO in a chip) and MPU6050 MEMS gyroscope-accelerometer chip?
60p looks much better than 50p.
Take it to Mars and determine if it's still "Gravity Compensated".
Hah!…I've replayed this several times, and each time, I break up laughing all the more! Good show, old bean!
Based upon my knowledge of electronics & physics, I must say that this video is presented in the spirit of the date, ie, APRIL FOOL'S DAY!!!!!
Wow, I've never even heard of Keysight before this video. I used to work for Agilent, right as they were spinning off from HP. Now it seems they've spun off their scope biz into a whole new company. They do love to spin things off.
AGO AntiGravityOscillator compensation
Why not just mount the TCXO in a gimble? Then no need for any electronical compensation 'cos the crystal will always be standing upright, no matter what orientation the scope is in.
Awesome Video. Learn something new everyday. 🙂
Got me 🙂
Shut up and take my money )
AGO3000 = Anti-Gravity-Oscilloscope-3000
xDxDxD
Those unskippable youtube ads are so annoying…did you purposely enable them? They are like three minutes long.
Got to love it when competition drives innovation in a world where competition is usually presented as some sort of evil.
What about compensating for Earth's expansion with subsequent gravity increase? Have they thought of that? PS: Your kid is adorable. PPS: Say hi to Dave, your new helper
Thanks Dave. If I ever go to the ISS I'll have to take one of those with me.
Dave the effect when you turned the counter was even greater! It changed to a zero and all sixes! (Late 1st April must be a lame joke :-()
Are there any mobile T&M applications that worry about 1 ppb inaccuracies?
I think the upside down oscilloscope is already drained from excess electrons for now. (:
9 day calibration haha had me for a bit at the begining
Must be april fool day joke…
Wouldn't their electro mechanical solution simply be a MEMS (micro-electro-mechanical-system) accelerometer? (since it is electro-mechanical :p)
Am I correct in assuming that I can use any digital oscilloscope can safely work with automotive sensors and circuits?
Is it true that digital oscilloscopes have naturally high impedance allowing them to work on these low voltage and low current circuits?
I'm sure this is an easy question to answer.
Thanks
gravity sucks, as Garfield would say 🙂
Wow, now i can use my Oscilloscope wile lying on my bed and having it screwed at the Ceiling
Aww, and here I was hoping that it could be used to correct for relativistic effects…
If you watch in one of Dave's recent Rigol scope teardowns there are some missing components on the main board around the oscillator. It doesn't take a genius to put it together that Rigol are also wisely planning for the gravity-compensated future.