David; This is a great idea. The '1%' that you left out has to be cost. Lets face it... PXI is expensive. Your approach has the ability to be a much more cost effective solution, Although depending on who is doing the custom HW design, this could be the trade off... Its not my intent to start a new discussion branch here, but while COTS obviously does has its advantages, I think the trend has been to cast aside custom solution based solely on cost, too often lately. I for one prefer the custom approach... Maybe its just more challenging, and what engineer doesn't like a challenge?
My .02 cents Rick Mahoney Equipment Test Design Lockheed Martin Corp Syracuse NY -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of David A. Moore Sent: Wednesday, June 02, 2004 8:49 AM To: Info LabVIEW Mailing List Subject: Re: PXI or SCXI impedance analyzer? George, This probably won't help you, but for one project I've worked on we replaced a big HP impedance analyzer by a function generator, a high speed digitizer, and some custom circuitry. It lets us send a chirp and get impedance as a function of frequency in about 1% of the time and for 1% of the weight. --David Moore At 02:01 AM 2004-06-02 -0400, you wrote: >Subject: PXI or SCXI impedance analyzer? >From: "Seifert, George" <[EMAIL PROTECTED]> >Date: Tue, 1 Jun 2004 12:27:21 -0500 > >I need to measure the impedance (low frequency, low power) of up to 16 >leads. So I need an impedance analyzer and a multiplexer. Currently we >have a GPIB controlled multiplexer and impedance analyzer, but would like >a more compact system. Is there anyway to do this using PXI or SCXI so >that we can have a smaller package? I can't seem to find an impedance >analyzer for either chassis - just resistance measurement. > >George ------------------------------------------------------------------------ - -W-H-E-A-T-W-H-E-E-L-L-E-N-S-T-O-W-I-N-D-O-W-I-N-G-G-P-R-O-G-R-A-M-W-E-B - ------------------------------------------------------------------------ - -- David A. Moore ----------------------------- Moore Good Ideas, Inc. -- -- (801) 773-3067 --------------------------------- NI Alliance Member -- -- 1996 Allison Way --------------------------- www.MooreGoodIdeas.com -- -- Syracuse, Utah 84075 ------------- [EMAIL PROTECTED] -- ------------------------------------------------------------------------ -
