Hi and welcome to Scope Month! My name
is Daniel Bogdanoff and today is
Thursday, March 30th. It's the second
to last day of scope month but that
means we're going to be giving away 5
more 1000 X-Series oscilloscopes. For
today's scope tip we're actually going
to talk a little bit about probes. One of
the new things that came out with the
1000 X-Series scopes is these probes. They are
switchable 10:1, 1:1 attenuation and
that begs the question, "when would you
use a 10:1 probe? When would you use a
1:1 probe or when would you use
something like a 100:1 probe? Well you
generally want to use the higher
attenuation ratios for higher voltages.
It comes down to the way that the
attenuation in the probe works. If I'm in
10:1 mode and I probe a 1 volt signal,
it's only going to pass 100mV
into the scope and the scope
is going to recognize the probe as a 10:1
and show you one volt on the
screen, so higher attenuations are useful
if you're trying to take a really big
voltage and scale it down so that you're
not going to blow out the inputs of your
scope. 1:1 attenuation is useful
for making lower noise measurements,
especially on lower voltage signals. We
can actually see this phenomena on the
scope. I've pulled out my 1000 X and
right now I'm in 1:1 mode and I'm
probing the probe comp port of the scope
and when I switch to 10:1 attenuation
you'll see that the signal drops by 10x
and I can switch back and forth and see
that's consistently changing over time.
Also notice that this bar, the thickness
of that, is generally the noise floor of
the scope and as I switch between 10:1
and 1:1, the thickness of the signal
there at 0 and 1 is not changing between
the two attenuations, so if I wanted to
get a more accurate measurement of my
probe comp port, I'd want to be in
1:1 mode and now let's draw
today's five 1000 X-Series
oscilloscope winners. Our winners are
Elizabeth Laffey, Carson Hoffman
Philip Wallner, Dennis Wachter, and
Lasa Tilakaratne. Congratulations to our
winners. We will be in touch with you
shortly. Let's take a quick look at
another test to impress entry. Remember
you have until March 31st at 11 p.m. UTC
to get your entries in.
We are the BRS Motorsport team, non-profit association
of students from Augustine in
Germany which works completely
independently from our universities.
Every year we build a new fully electric
race car to participate in the formula
student competition all over Europe to
compete with different formula student teams
from all over the world. Over 70 team
members from different fields of studies
work on this interdisciplinary project.
We use seven control units in our car
which we design and develop on our own.
Our main focus is to build a safe car
because on the events in the summer a
fellow student would ride the prototype so
due to good engineering practice we have
to test all functions beforehand
especially critical signal lines are
very important to test for us because
unstable signals can be corrupted by MC
due to the electrical power train of the
car. Furthermore we have no possibility
of data connection to a computer with
our oscilloscopes. This makes it very
hard to create a professional
documentation of our projects and that's
the reason why we need you so much. We
want an oscilloscope with more
features because we want to improve and
learn more about our designs. Only this
way our skills can be better and we can
gain a better understanding for circuit technology.
That's all for today make
sure you tune in tomorrow at 10 a.m.
mountain standard time for our live
stream Scope Month Finale. Subscribe to
the Keysight Oscilloscopes YouTube channel.
Check us out on Facebook, Instagram and
Twitter. I'll see you tomorrow!