risknfun's blog    |  go to risknfun's homepage
Blog Main
Tag | Guestbook | Admin   
 
Lab - Electronics
I have so many questions about my first lab of Physical Computing Class. I should read a text book or related materials, and ask to staff.

Here are some of my experiences and curiosity.

1. When I was measuring a 220-ohm register with a JAMECO multimeter, the result was gradually decreased from 251 to 216-ohm. I'm not sure it is common phenomenon of register or multimeter.

2. A 7805 regulator sometimes became so hot. According to the Physical Computing page 4, it's getting too much electrical energy and I have a problem. (add) page 47, it's normal to get a little hot if it operating at the high end of its range.

3. In section 3, When I put three LEDs in serial, I could see the light while I made a darkroom with my two hands. But, it was so dim and only cases of red LEDs and yellow, not white or green.

4. Why we use a 5V for common circuit?
- To avoid noise and reduce electrical waste

5. Why we use 'I' for an electric Current?
- Because, C was occupied by Capacitance, and maybe there are three basic components; Capacitor, Resistance, Inductor

6. Students of Todd's class made somewhat different circuit, especially setting up 5 Volts. After I finished my assignments, I made circuit again following Todd's instructions. I successfully lighted LED up, but I don't know why we use 1uF and 10uF capacitor. In my guess, it manages an irregular voltage so that regulator and other components work better.
Tag :
Track this back : http://itp.nyu.edu/~yc581/blog/trackback/4

name    password    homepage
 hidden


 Category
All (251)
Project (1)
Me, Myself & I (52)
ITP (106)
NY (92)
 TAGS
"+ and -" 3D AIA Albeniz Alisa Weilerstein American Museum of Natural History Anish Kapoor Anne Ducros Anne-Sophie Mutter Application architecture Arduino Armory Show art Assistive Technology bar Beethoven bibimbab biofeedback Birdcalls Birdland bitforms BK Blog Blue Note Brahms Brown C cafe Calder Camera4K Carnegie Hall Center for Architecture Chelsea Chris Marker Cleveland Orchestra clock collage CommLab compform composition Computaional Form Computational Forms Computers for the Rest of You consciousness Daniel Barenboim Dave Holland design Designing for Constraints DfC Dia:Beacon Distortion DJ dogs Donald Judd drive dynavox EEG Elizabeth Seton email Experimental Video First Friday football fountain2006 Gagosian Gallery game Garrick Ohlsson Gehry Gershwin Gidon Kremer gmail Graphical Novel Grey Art Gallery Guggenheim Hair Halloween Harlem horse hot dog IAC Iannis Xenakis IDEO IFC center Illusion Wheels Interactive Puppet Theater IPAC2 IR sensor ITP jazz John Cage Kwang-Young Chun La Jetée Lamp Lang Lang Leeds Radio Leon Fleisher Lev Manovich Lilya Zilberstein Lincoln Center Louise Lawler Marc-André Hamelin Matthew Barney Maurizio Cattelan Maxim Vengerov Maya metaforms Michel Gondry Minsoo Lee MLB MoMA Mona Hatoum Morse code movie Moving Pictures Mozart Nam June Paik Neuroesthetics Nevada Smiths NY life Olafur Eliasson On Kawara OUT OF TIME paper prototype party photoshop Physical Computing piano
 Recent Entries
Moving
inspiration, perspiration..
lights in the dark
Life (2)
Dali
 Recent Comments
thank you man. hope you h..
risknfun - 2008
happy thanksgiving~
cheter - 2008
Some of the pictures have..
Chromaniac - 2008
저거 어디더라.. MET museu..
kaka - 2008
http://www.artnet.com/mag..
nori - 2008
 Archive
2009/01
2008/12
2008/11
2008/07
2008/06
 Visitor Statistics
Total : 86020
Today : 0
Yesterday : 6
rss