Not feeling rn. My mind is in Spaaaaaace. Focus in Thor. Nooooooo. It's k. Review day. We're not doing stufffffff. Mason trashes some colleges day.

Universities Mason trashed today:

UC Irvine

UNLV (engineers wanted)

Cal Poly Pomona

Harvey Mudd (just that they don't accept transfers)

Immediately out of college students "you are STILL useless out of college"

and some Cal State Schools, especially for students looking to do graduate work

Words in Spanish that I'm working on memorizing today.  Fun fact, Blogger doesn't believe in tabs for some reason. Spaces all the way son

(from http://www.linguasorb.com/spanish/verbs/most-common-verbs/2)
llevar         to carry/bring

tratar          to treat/handle

recibir        to recieve

conseguir   to get/obtain

permitir     to permit

sacar          to take out/stick out

presentar   to introduce

acabar       to finish

traer          to bring

morir        to die

realizar     to accomplish/achieve

lograr       to get/achieve/obtain

reconocer to recognize

alcanzar   to catch up/reach

dirigir      to direct

utilizar     to utilize

cumplir    to fulfil/carry out

offrecer    to offer

intentar    to try/attempt

Hmm, 19. almost a perfect 20.

Ah, class begins.  ~8:30
I went outside to do burpees to lower my energy level. And also to take a picture that will be shown later in the blog in memorandum of Alex's now absent mustache.

We talk about capacitors for a bit and then get on to op amp integrators and differentiators, from the end of chapter 6 if I recall.

They look like this:

Look at that beaut of a circuit.  What a beaut. 

There exists a differentiator.  We wont be caring very much since there's a lot of noise on the output. But we will be doing a lab on the things! And boy oh boy, you get to see the noise.

Onto Chapter 7 things: Switching functions! Which the book seems to make a quick note of, use for a chapter, and then discard.  

there is u for unit step, delta for unit impulse, and r for unit ramp starting at time 0.

we can use these to model 1st (and second) order circuit transient response.

We can describe a voltage source in terms of the unit step function.

Differentiator Lab:

So we're going to calculate the appropriate frequency to find a gain of one between our in and out signals on this amazing Differentiator circuit.  See below graph for values, and picture for diagram and derivation of how we got to 230Hz for unity gain. Note that we went with .1 V on the input so as to reduce noise to the point where we could observe significant gains on the output.  

Results, with three measurements and an r^2 correspondence between predicted and measured:

Calculations and Prelab:

Signal for 230 Hz:

Signal for 100 Hz:

Signal for 500 Hz:

Circuit with ground at pin 20, signal in at 7, and ±5V on the rails:

After I finished the lab, Prof Mason was teaching some easy 1st order equations nonsense, so I used this time to unite my face with a plant. Plant Thor felt lonely, so he invited friends:

Ciao!