Mailing List flyrotary@lancaironline.net Message #31220
From: Tracy Crook <lors01@msn.com>
Subject: Re: [FlyRotary] Re: Possible data-logging solution?
Date: Mon, 17 Apr 2006 10:14:48 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
I'll check this out but in the mean time I added a simple data logger to the fly-by-wire board since it only required the addition of 1 inexpensive part.   Data logging time is limited to 74 minutes at a sample rate of once every 2 seconds.   This should be plenty for analyzing cooling & performance issues.
 
It ain't over yet since this only stores the raw sensor data.  As Rusty points out, I (or a volunteer with some programming/EXCEL chops?) need to write the program to download the data and an EXCEL spreadsheet to display it in a nice chart.
 
BTW,  Congrats Buly!  Now, give us more details on that needed cooling tune-up : )
 
Tracy  (did I mention I was looking for volunteer programmers?)
 
 
Subject: [FlyRotary] Re: Possible data-logging solution?

Tracy:   Could this module be added to the EM2 or EC2 to add datalogging in a simple manner?

http://www.labjack.com/labjack_u3.html
 
 
Interesting Phil.  I just bought a serial data logger for my Dynon DS180 (EFIS and EMS).  I just received the Dynon, and data logger, so I haven't had time to try anything with them, but this setup has promise for Tracy's stuff as well.  
 
 
At the moment, the unit only logs one of the two serial channels, but in the next version of software, it will log both channels.  It uses SD or MMC memory cards, so you can take them home to read them.  The OEM version has this card slot available on the bottom of the board, where the boxed version is enclosed.  I'm told you can use any branded memory, so you don't have to buy theirs.  I got the 128 mb version, since they seem to screw you on the memory cost, and I can buy larger cards much cheaper from other vendors.  
 
They don't use the FAT file system, so you need their "reader" program to read the memory card on a PC, or you can use a laptop and download the data via X-modem.  Once I get the data, the next problem will be figuring out what to do with it.  I guess I'll be learning more about Excel than I cared to know. 
 
Cheers,
Rusty (one week until my "sentence" in Cleveland starts)
 
  
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster