secrets

    I am not sure if I said this in the previous entry, but in the 24th some JAXA(Japan Aerospace eXploration Agency, yes the X bothers me too) and I have to show them an experiment and me along some other guys in the lab are working on fixing this pulsed power source and get it running before they come. it is just a giant discharge of a condenser to produce a large current, like 5 kA... so it is pretty dangerous.

Funnily enough I am missing a capacitor, so if you see one let me know

   Just simple connections

rectifier bridge with diodes.

an inductance.

Transformers! more than meets the eye!

   Randomly in the hallways I ran into the 部長 of the brass band(the one I ended up writing that I like on my name tag a couple of entries ago) we talk for a bit, some other dudes pass by and mentioned the word 逢引（aibiki) and how we were seeming to be hitting it off with each other while just talking in a hallway.

 

Social Security

   This month I am kinda poor, some expenses piled up... screening fee for the university(they will return this later, which pisses me off a bit) some taxes for the plane ticket... each of these is around 40万円(forty thousand yen) anyhow to get my mind off things I did an experiment

    To get technical I guess, that is a gate circuit, just sends a timed pulse,  nothing too fancy... the blue thing is a hand built transformer(wrapping wire around a core by hand)

     That is a SI-thyristor, it is just a switch that opens and closes according to the pulse in the circuit above.

    That is the testing circuit just an RC load to see if my setup was working as intended, the huge ass bronze color thing is a rogowski coil and measures current through induction, you just have to be careful to set it on the right direction so it doesn't measure the current inverted

   It was a success, the thing seems to be working if that last picture has enough zoom you can close in on the switch(the one with like plastic boards) and see how the red wire is just actually laying there, pretty messy connection if I do say so myself, but why make it prettier if that works just fine.


   Now in separate events, right now I am wondering if I got thrown into the Japanese social security system(I should not be, students are not supposed to pay, much less foreign ones) but I received a pension booklet and a stack of bills I am not sure I comprehend. Since I am running an english workshop as I said before if you have any recommendations for short stories in english or nice songs it would be appreciated in comments.. or if you have a normal way to contact me just use that.