Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 14554511 times)

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Offline Brumby

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102400 on: September 20, 2021, 11:07:31 am »
I had gathered by now that Saskia was a she.

Was? Still is as far as I know ...  ::)

No intention of changing that  :-DD :-DD


I hope not. We need someone around here to clean the place and cook the meals.   >:D

J/K.  :P :-DD

Med has just established his locale as Ground Zero.   Everyone ... KEEP CLEAR!
 
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Offline AaronLee

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102401 on: September 20, 2021, 11:09:29 am »
Proposal to develop Insulin sensor submitted to the powers that be.
Now need to forward this to our CEO thru channels just in case some midlevel management critter decides that it's too much work to take a stand ...

This would be an insulin sensor that could be used in a personal device? That would be a game changer for diabetics!
 
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Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102402 on: September 20, 2021, 11:10:10 am »
There is this 3478A on eBay if anyone is looking for one https://www.ebay.co.uk/itm/274949249296
Who let Murphy in?

Brymen-Fluke-HP-Thurlby-Thander-Tek-Extech-Black Star-GW-Avo-Kyoritsu-Amprobe-ITT-Robin-TTi
 
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Offline FransW

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102403 on: September 20, 2021, 11:14:32 am »
]

This one gets nearer to what I'm trying to achieve:
http://www.stable32.com/A%20Small%20DMTD%20System.pdf
And there's a thread here on eevblog:
https://www.eevblog.com/forum/metrology/dmtd-board/?all

DMTD typically is all about measuring oscillator stability to ppt (1e-12) or better. The main point is: By mixing the DUT frequency with e.g. a 100Hz (10Hz, 1Hz) offset reference, the errors get multiplied by the ratio of reference to offset frequency (e.g. 100000 for 10Mhz / 100Hz), this way shifting picoseconds into 100's nanoseconds range, which can be easily measured by conventional counters. The TA520 is quite a luxury item here, as its 25ps resolution isn't required at all for these measurements.

The complete solution:
PE1CCN, Systems Engineering, HP, Philips, TEK, BRYMAN, Fluke, Keithley
 

Offline AVGresponding

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102404 on: September 20, 2021, 11:36:23 am »
There is this 3478A on eBay if anyone is looking for one https://www.ebay.co.uk/itm/274949249296

Dammit Specmaster I was hoping to keep that one a secret!
nuqDaq yuch Dapol?
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Offline BU508A

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102405 on: September 20, 2021, 11:41:47 am »
]

This one gets nearer to what I'm trying to achieve:
http://www.stable32.com/A%20Small%20DMTD%20System.pdf
And there's a thread here on eevblog:
https://www.eevblog.com/forum/metrology/dmtd-board/?all

DMTD typically is all about measuring oscillator stability to ppt (1e-12) or better. The main point is: By mixing the DUT frequency with e.g. a 100Hz (10Hz, 1Hz) offset reference, the errors get multiplied by the ratio of reference to offset frequency (e.g. 100000 for 10Mhz / 100Hz), this way shifting picoseconds into 100's nanoseconds range, which can be easily measured by conventional counters. The TA520 is quite a luxury item here, as its 25ps resolution isn't required at all for these measurements.

The complete solution:


That thing has a major flaw: Gravity is not a force it only appears as such.  :)
“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 

Offline FransW

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102406 on: September 20, 2021, 11:45:15 am »

That thing has a major flaw: Gravity is not a force it only appears as such.  :)
[/quote]

The picture just illustrates that there can be something beneath all known phenomena,
whatever their nature. Since we do not know whatever that might be.

So you just invented a new principle.
Check with Sabine Hossenfelder.
« Last Edit: September 20, 2021, 11:49:17 am by FransW »
PE1CCN, Systems Engineering, HP, Philips, TEK, BRYMAN, Fluke, Keithley
 

Offline PA0PBZ

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102407 on: September 20, 2021, 11:50:31 am »
There is this 3478A on eBay if anyone is looking for one https://www.ebay.co.uk/itm/274949249296

Dammit Specmaster I was hoping to keep that one a secret!

So that's why you quote the link?  >:D
Keyboard error: Press F1 to continue.
 

Offline McBryce

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102408 on: September 20, 2021, 11:52:03 am »
https://www.ebay-kleinanzeigen.de/s-anzeige/digital-phosphor-oszilloskop-dpo-tektronix-tds3052/1871457069-168-4712

any good ?
he would trade for a Voltcraft 160 MHz AFG, I have a Peaktech 160 MHz AFG.
Would that be a good trade ?

Seriously dodgy. The title says TDS3052, some of the pictures are of a 3032, but others are a 3034?? And the language on the devices change between German and Russian?? So what is he actually selling? There are no pictures of a 3052.

McBryce.
It seems to be a case of the often claimed bandwith extension by SW hack. Would not risk it.

That still wouldn't explain how it suddenly turned into a 4 channel scope in one of the pictures and then back to a two channel model??

McBryce.
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Offline BU508A

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102409 on: September 20, 2021, 11:52:16 am »
That thing has a major flaw: Gravity is not a force it only appears as such.  :)

The picture just illustrates that there can be something beneath all known phenomena,
whatever their nature. Since we do not know whatever that might be.

So you just invented a new principle.
Check with Sabine Hossenfelder.
(quoting fixed)


I'm a long-time follower of Sabine's YT channel, I'm aware of that.  :)
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Offline Saskia

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102410 on: September 20, 2021, 12:30:51 pm »
Proposal to develop Insulin sensor submitted to the powers that be.
Now need to forward this to our CEO thru channels just in case some midlevel management critter decides that it's too much work to take a stand ...

This would be an insulin sensor that could be used in a personal device? That would be a game changer for diabetics!

yes, exactly.
 
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Offline McBryce

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102411 on: September 20, 2021, 12:35:20 pm »
Proposal to develop Insulin sensor submitted to the powers that be.
Now need to forward this to our CEO thru channels just in case some midlevel management critter decides that it's too much work to take a stand ...

This would be an insulin sensor that could be used in a personal device? That would be a game changer for diabetics!

yes, exactly.

The game has already been changed. There's already loads of these on the market for quite a while now. Why would another one be needed?

McBryce.
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Offline Saskia

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102412 on: September 20, 2021, 12:43:10 pm »
If so please point me to one. I am not talking about Glucose, but Insulin. Have been unable to find a personal Insulin meter. Will gladly buy one if the price is within reason. I do have a personal glucose and ketone meter, but that is not really sufficient.
« Last Edit: September 20, 2021, 02:09:47 pm by Saskia »
 
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Offline BU508A

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102413 on: September 20, 2021, 12:46:34 pm »
If so please point me to one. I am not talking about Glucose, but Insulin. Have been unable to find a personal Insulin meter. Will gladly buy one if the price is within treason. I do have a personal glucose and ketone meter, but that is not really sufficient.

https://www.aerzteblatt.de/archiv/168902/Glukosekontrolle-Messen-ohne-zu-stechen
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Offline Cerebus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102414 on: September 20, 2021, 12:59:11 pm »
If so please point me to one. I am not talking about Glucose, but Insulin. Have been unable to find a personal Insulin meter. Will gladly buy one if the price is within treason. I do have a personal glucose and ketone meter, but that is not really sufficient.

https://www.aerzteblatt.de/archiv/168902/Glukosekontrolle-Messen-ohne-zu-stechen

That's about a glucose sensor. Glucose ≠ Insulin, one's a simple disaccharide, one's a hormone.

Quote
FreeStyle Libre ® heißt das Flash-Glukose-Messsystem, das seit Ende Oktober für erwachsene Diabetiker verfügbar ist und direkt bei Abbott im Online-Shop bestellt werden kann.
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 
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Offline BU508A

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102415 on: September 20, 2021, 01:02:55 pm »
If so please point me to one. I am not talking about Glucose, but Insulin. Have been unable to find a personal Insulin meter. Will gladly buy one if the price is within treason. I do have a personal glucose and ketone meter, but that is not really sufficient.

https://www.aerzteblatt.de/archiv/168902/Glukosekontrolle-Messen-ohne-zu-stechen

That's about a glucose sensor. Glucose ≠ Insulin, one's a simple disaccharide, one's a hormone.

Quote
FreeStyle Libre ® heißt das Flash-Glukose-Messsystem, das seit Ende Oktober für erwachsene Diabetiker verfügbar ist und direkt bei Abbott im Online-Shop bestellt werden kann.

I know. But I cannot see the sense in measuring the insuline. All friends of mine with diabetics (type I and II) are only measuring the glucose. None of them is measuring the insuline level. And one of them has a similar sensor system to the one described in the Ärzteblatt above.
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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102416 on: September 20, 2021, 01:08:10 pm »
      

Ifni save me... I'm going there.   

mnem


Been there, done that - long time ago when I could use my eyes without artificial amplification to do such soldering. Last time I had a broken FPC, luckily some chinese seller offered replacement for little money.

Yeah, the FPCs are available cheap, if you feel like tackling the assache of swapping over four .5mm pitch ribbon sockets, three IR photosensor pairs, and three diodes. 7 little bodge wires feels a treat in comparison, honestly.  :-DD

You can get them fully populated for ~US$24 each... but then you have no idea of the quality of the components, you have to play the fleaBay cesspool game, and with two cameras I'm now looking at $75 invested before I buy batteries and chargers...

...or I can spend a couple hours doing the bodge thing and at least see if that's all the little beastie needs before I plonk down real money on parts to fix a decade-old camera.

Really, the math wasn't that hard, especially since it sidesteps the whole border delays/duty/slow boat from China asshole tax.

mnem
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Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102417 on: September 20, 2021, 01:09:58 pm »
There is this 3478A on eBay if anyone is looking for one https://www.ebay.co.uk/itm/274949249296

Dammit Specmaster I was hoping to keep that one a secret!

Already on my watch list and finished the day I get paid so...  :-DD
 
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Offline Cerebus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102418 on: September 20, 2021, 01:12:23 pm »
I know. But I cannot see the sense in measuring the insuline. All friends of mine with diabetics (type I and II) are only measuring the glucose. None of them is measuring the insuline level. And one of them has a similar sensor system to the one described in the Ärzteblatt above.

They are not doing it because they can't, not without sending bloods off to "biochemistry".

Think of "insulin resistance" and the more familiar resistance. I give you a resistor and say measure its value, but you can only use current, you may not measure voltage. Think of glucose levels as voltage and insulin levels as current - they interact through the insulin susceptibility or resistance. You can't find that insulin resistance without measuring both.
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 
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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102419 on: September 20, 2021, 01:16:46 pm »
      

Ifni save me... I'm going there.   

mnem

That is a typical Louis Rossman style "bodge"  :palm: >:D

Oh gawd no... this is easily 10x larger scale than what he does; I didn't even use my reading glasses except to see when I scraped the insulation away.

The major difference tho, is intent. This is for myself, not someone else, and I don't intend to keep it this way; if the cameras actually work with this bodge, then the FPCs will be replaced with the proper part.

mnem
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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102420 on: September 20, 2021, 01:21:27 pm »
I had gathered by now that Saskia was a she.

Was? Still is as far as I know ...  ::)

No intention of changing that  :-DD :-DD


Here you can find the teddy bear Mnem was talking about ...



I will never look at my Teddy bear the same way...

That would probably be for the best... ;)

mnem


https://y.yarn.co/378a73b6-06ae-4897-813d-67bf41fee163.mp4
« Last Edit: September 20, 2021, 01:23:10 pm by mnementh »
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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102421 on: September 20, 2021, 01:28:12 pm »
I had gathered by now that Saskia was a she.

Was? Still is as far as I know ...  ::)

No intention of changing that  :-DD :-DD


I hope not. We need someone around here to clean the place and cook the meals.   >:D

J/K.  :P :-DD

Oi, Papa Smurf... you woke up fulla piss & vinegar this mornin', dinn'cha...?  :-DD

mnem
Either that, or he really wants one of those teddy bears... >:D
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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102422 on: September 20, 2021, 01:38:10 pm »
I identify as an attack helicopter.
That's perfectly fine with me, I just love helicopters  8)
But French helicopters go round the wrong way!
:-DD

I don't know if there is a right or wrong way, however it is true that the main rotor on French helicopters does turn one direction but helis from the US or other countries rotate in the opposite direction !  :-//
This is less and less true though, since the French helis are now less and less French. The EC135 and 145 IIRC are originally an old German design so their rotor is turning the "right" way. Also, newer designs like the EC175 were co-designed with the Chinese so I suspect it also turns the "right"/"international" way.

As years go by and older French designs get phased out, progressively all French helis will rotate the same direction as the rest of the heli world...


Meh. This is the right way to do a heli... with two rotors in opposite directions. >:D

mnem
flippin' frogs... could muff up a wet dream... ;)
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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102423 on: September 20, 2021, 01:41:28 pm »
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Offline McBryce

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #102424 on: September 20, 2021, 01:59:58 pm »
There is this 3478A on eBay if anyone is looking for one https://www.ebay.co.uk/itm/274949249296

What the actual FUCK...? https://www.ebay.co.uk/itm/353637404307

mnem
 ???

That's a serious job for a 3D printer :)

McBryce.
30 Years making cars more difficult to repair.
 
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