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Forum: Tools 05-23-10, 11:07 PM
Replies: 19
Views: 48,582
Posted By AC_Hacker
Thermocouple noise, 1-wire + Arduino

cmroseberry,



You are quite right about the noise in the thermocouples. I was able to deal with this in post-processing. I wrote a macro in Excel that would average over several readings. This...
Forum: Tools 10-13-09, 07:45 PM
Replies: 19
Views: 48,582
Posted By AC_Hacker
Ron22, You can change the logging interval...

Ron22,

You can change the logging interval to log around 250 tumes per second (more if you log fewer inpits) to 1 log per second by changing a text file which is read at boot up.

You'd have to...
Forum: Tools 10-13-09, 06:49 PM
Replies: 19
Views: 48,582
Posted By AC_Hacker
Ron22, You can change the logging interval...

Ron22,

You can change the logging interval to log around 250 tumes per second (more if you log fewer inpits) to 1 log per second by changing a text file which is read at boot up.

You'd have to...
Forum: Tools 07-22-09, 09:39 AM
Replies: 19
Views: 48,582
Posted By AC_Hacker
Power & Noise

Can you give me a bit more detail regarding integrating the output? Can you reduce it to an algebraic equation? If so, I can include that in the spreadsheet.

Do you know where I can get Hall...
Forum: Tools 07-03-09, 02:45 AM
Replies: 19
Views: 48,582
Posted By AC_Hacker
noise solutions...

Yes, I did try looping the data-logger end of the cable several turns through a ferite core. No noticable help.

Regards,

-AC_Hacker
Forum: Tools 07-02-09, 11:24 AM
Replies: 19
Views: 48,582
Posted By AC_Hacker
questions on data-logger...

You bring up some interesting questions...

> ...and those runs acting like a big antenna.

The data I'm collecting has a degree of 'noise'. I tried to quiet things down with tiny by-pass caps in...
Forum: Tools 06-29-09, 12:57 PM
Replies: 19
Views: 48,582
Posted By AC_Hacker
Data-Logger, Good Progress...

I have been working on my data logger and am happy to report that I now have a working unit and have been using it to do testing of hydronic floor ideas.

The log-o-matic board from Spark Fun had 8...
Forum: Tools 05-08-09, 11:43 AM
Replies: 19
Views: 48,582
Posted By AC_Hacker
DIY Data-Logger

I've been looking through several threads and have noticed interest in tracking data, also an interest of mine for my heat pump developments.

I've looked to buy data-loggers and they can be...
Showing results 1 to 8 of 8

 
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