On Friday Ai Ling, Tim, Glenn and I headed over to Erik Sanchez's physics lab in SB2 to take a look at his vacuum chambers. Glenn set up the meeting, since he worked with Erik a few years ago when he built an electron microscope out of spare parts (sheesh, some people have all the fun).
Now I hate to coin a new phrase, but vacuum chamber envy is just about right. Erik has a giant vacuum chamber that actually needs a hydraulic lift to open the top of the chamber. Yes, it's that big. As Glenn noted, it's "microsatellite" big, so Erik will be hearing a lot from us, I think. On some Friday afternoon in the next 0-2 weeks, I'd like to do that pressure test we've been talking about. This means hooking up some to-be-determined analog pressure sensor and the SCP1000 digital pressure sensor to an LPC2148, and then have the LPC2148 steam the current reading using a UART. We have a giant "Conflat" connector with a bzillion leads, so we'll be able to send power, ground, RX and TX into the chamber. - Ai Ling needs to find us an analog pressure sensor - Maria needs to talk with Andrew and Tim and think really hard if we can use the SCP1000 as a barometric altimeter. It might just be too slow... so we might want to go with a absolute analog version? Let's talk Tuesday. - Jeremy (ADC) and Mike (SPI) need to get the interface to the pressure sensors working ASAP. Andrew -- ------------------------------------------------------- Andrew Greenberg Portland State Aerospace Society (http://psas.pdx.edu/) and...@psas.pdx.edu P: 503.788.1343 C: 503.708.7711 ------------------------------------------------------- _______________________________________________ psas-avionics mailing list psas-avionics@lists.psas.pdx.edu http://lists.psas.pdx.edu/mailman/listinfo/psas-avionics
