[hackspacebristol] Oscilloscope workshop: dates, objectives, help required
john at john-willis.me.uk
Tue Sep 9 22:52:21 UTC 2014
Thanks for organising this, I will be there and have a key.
On 09/09/14 17:07, Tom Gardner wrote:
> In order to get things moving, I'm going to arbitrarily define that
> we'll have a tutorial workshop on *Monday 29th of September, starting
> at 6:30pm*. If too many people object or can't make it, we'll think
> about changing the time and/or date.
> I'll need this support:
> * someone with a key to let us in
> * others (hopefully Matt, JohnH and Russ) that can correct my
> mistakes and omissions, and give people hints and tips during the
> *So please let me know that you can help and/or be there.*
> Objective: have a sufficient theoretical and practical understanding
> of scopes so that you could
> * buy a scope that suits your needs, knowing where specmanship
> pitfalls are located
> * buy scope probes that suit your needs and the scope
> * avoid common traps, to use oscilloscopes accurately and safely
> but that's quite a stretch goal; I'll be satisfied if people at least
> understand what they don't understand!
> We'll have a few circuits for you to probe, but feel free to bring
> along one of your own, /with its circuit diagram/. You'll probably get
> more out of the session of you are probing a circuit that you already
> know about.
> Brief discussion: what /you've found out during your pre-workshop
> research/, and we'll give you some more things to think about.
> First practical: using basic oscilloscope controls, and /trying to
> avoid the traps we'll put in your path/.
> Discussion of what problems were encountered, the theory behind them,
> and how to recognise/avoid the traps.
> Second practical: looking at some real-world analogue and digital
> signals, using some of the more advanced controls.
> Discussion of whatever feels important.
> *_In Advance_*
> Beforehand do a /little/ research so that you have crude grasp of
> * understand the scope's three principal *internal building blocks*
> (horizontal/time, vertical/voltage, trigger). Objective:
> understand how to measure voltage and time so that you can determine:
> o waveform's frequency, amplitude and offset
> o circuit bandwidth
> * find the names of various different *types of **scope probe**and
> probe accessories*. Objective: understand the vocabulary so we can
> discuss the theory and practice of:
> o their characteristics and why different types of probe exist
> o when you can and/or must use each type
> o how to use different types
> o and the same for probe accessories
> * find the names of different *types of scopes*, Objective:
> understand the vocabulary so that we can discuss
> o bandwidth
> o digital vs analogue scopes
> o MHz vs MS/s
> o real-time vs equivalent time
> * come up with ideas about how you could *damage* the scope, scope
> probe, your circuit (or yourself) when using a scope. Objective:
> environmental noise reduction.
> I will send out a short reading list to those that are attending.
> Hackspacebristol mailing list
> Hackspacebristol at lists.aktivix.org
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