MDR to CSV conversion problem with NF unit

Hilfe und Informationen zur Firmware der SPECTRAN NF- Serie
Firmware related help and information for the SPECTRAN NF- series

MDR to CSV conversion problem with NF unit

Postby Moderator » Saturday 20. February 2016, 21:15

I finally managed to export mdr data to a cvs file. However, I’, having some difficulties on understanding the way the information was registered.
In the attached cvs file (I’m also sending the mdr file from which the cvs file was obtained), some frequencies are duplicated. In this particular case, the frequency span goes from 30 to 60 Hz, with a filter of 3Hz at a sample rate of 200ms. The frequency values obtained are duplicated for 30 and 31 Hz, a single column for 32 Hz, repeating the patterns this point forward (33-33-34-34-35-36-36-37-37-38-…). Can you provide me a explanation?



Look at the frequency setup of your MDR source:

Code: Select all
30; 30; 30; 30.6; 30.6; 30.6; 31.2; 31.2; 31.2; 31.8; 31.8; 31.8; 32.4; 32.4; 32.4; 33; 33; 33; 33.6; 33.6; 33.6; 34.2; 34.2; 34.2; 34.8; 34.8; 34.8; 35.4; 35.4; 35.4; 36; 36; 36; 36.6; 36.6; 36.6; 37.2; 37.2; 37.2; 37.8; 37.8; 37.8; 38.4; 38.4; 38.4; 39; 39; 39; 39.6; 39.6; 39.6; 40.2; 40.2; 40.2; 40.8; 40.8; 40.8; 41.4; 41.4; 41.4; 42; 42; 42; 42.6; 42.6; 42.6; 43.2; 43.2; 43.2; 43.8; 43.8; 43.8; 44.4; 44.4; 44.4; 45; 45; 45; 45.6; 45.6; 45.6; 46.2; 46.2; 46.2; 46.8; 46.8; 46.8; 47.4; 47.4; 47.4; 48; 48; 48; 48.6; 48.6; 48.6; 49.2; 49.2; 49.2; 49.8; 49.8; 49.8; 50.4; 50.4; 50.4; 51; 51; 51; 51.6; 51.6; 51.6; 52.2; 52.2; 52.2; 52.8; 52.8; 52.8; 53.4; 53.4; 53.4; 54; 54; 54; 54.6; 54.6; 54.6; 55.2; 55.2; 55.2; 55.8; 55.8; 55.8; 56.4; 56.4; 56.4; 57; 57; 57; 57.6; 57.6; 57.6; 58.2; 58.2; 58.2; 58.8; 58.8; 58.8; 59.4; 59.4; 59.4; 60; 60; 60;


You have recorded in 3D so you get a sample record for every axis so you get the same frequency 3 times (x, y, z axis).
As you can see in your CSV file your conversion went wrong:

Code: Select all
30   30   31   31   32   33   33   34   34   35   36   36   37   37   38   39   39   40   40   41   42   42   43   43   44   45   45   46   46   47   48   48   49   49   50   51   51   52   52   53   54   54   55   55   56   57   57   58   58   59   60
Moderator
 
Posts: 1036
Joined: Tuesday 20. April 2010, 13:24
Location: Aaronia AG

Return to NF

Who is online

Users browsing this forum: No registered users and 1 guest

cron