[psas-avionics] IMU parts

[I]

Andrew and Tim,
I'm working up a schematic for an IMU and I have a couple of questions  
you might be able to answer...


First, Analog devices finally came out with a 3 axis accelerometer  
with decent range (8/2009). The ADXL326 has 3 axis +-16 g's. Noise  
spec is comparable but a bit lower than previous offerings. Basically,  
was there any reason not to use the 321's (or this new part)? I'm just  
wondering if anything stands out in your minds from other  
accelerometer work you've done.


Second, I'm looking at the ADS1278 24 bit ADC, and I'm a bit spooked  
by the clock requirements. It needs a high speed clock that is as fast  
as, or a power of 2 faster than, the spi clock. I haven't seen a good  
clock out from the LPC2378 that would be selectable (in speed).  
Before I place a CPLD, had either of you considered this when  
exploring the other ADS variants with capstone students? The demo  
board has some weird D-latches on the SPI outputs as well... Yuk!


With the AD part and the new z axis IDG parts (they finally put a temp  
sensor on, as well), I can get it done on one board with no orthogonal  
daughter boards. I'm thinking this will be easier than the ones I've  
done in the past...


Thoughts?





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Re: [psas-avionics] Fwd: Multiphysics Workshop in Tigard/Portland (Sep 23)

[Barton C Massey]

Looks interesting---thanks for forwarding!

That's the first day of Linux Plumbers Conf, so I probably
won't be available.  Hopefully someone else will.

Bart

In message 20090903142153.g5wf6qzlz4044...@webmail.dsl-only.net you wrote:
 This may be of interest to people doing modeling?
 
 Glenn
 
 
 Glenn LeBrasseur,  KJ7SU
 gle...@twaves.org
 
 
 
 
 - Forwarded message from mail-comsol...@comsol.com -
  Date: Wed, 02 Sep 2009 09:45:20 -0700
  From: Johan Sundqvist mail-comsol...@comsol.com
 Reply-To: Johan Sundqvist johan.sundqv...@comsol.com
   Subject: Multiphysics Workshop in Tigard/Portland (Sep 23)
To: Glenn LeBrasseur gle...@twaves.org
 
 Dear Colleague,
 
 On September 23, we will host a free COMSOL multiphysics
 workshop in Tigard. The event features a live demo of the
 simulation environment and its capabilities, as well as a
 computer session where you can try the software firsthand.
 Join us to get a sneak peek into our next release, version 4.
 
 
 You are invited to register below and join us for this special event:
 http://www.comsol.com/events/cmmw/8502/
 
 Date:  September 23, 2009
 Time:  1:30AM - 4:30PM
 Location:  University of Phoenix
 Oregon Campus
 13221 SW 68th Parkway Suite 500
 Tigard, OR 97223
 
 To participate in the hands-on session, please bring a laptop
 with you. For system requirements, please see:
 http://www.comsol.com/products/requirements/
 
 Seating is limited, so advanced registration is recommended.
 If you have any questions do not hesitate to contact me at
 650-324-9935 or to email me.
 
 Best Regards,
 Johan
 --
 Johan Sundqvist
 Technical Sales Manager
 COMSOL, Inc.
 744 Cowper St
 Palo Alto, CA 94301
 Tel: (650) 324-9935
 www.comsol.com
 
 
 
 
 - End forwarded message -
 
 
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