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Doug’s Pick of the Week

January 11th, 2008

Advanced MATLAB: Capturing data from an instrument

In an earlier post, I covered how to collect data from a data acquisition board. [click here] This post will do something similar for an oscilloscope. This time instead of using the Data Acquisition Toolbox we will be using the Instrument Control Toolbox.

If you are connecting to hardware for capturing data and then bringing that data into MATLAB later for post test analysis, you should really consider bringing the data into MATLAB directly so you can do your analysis as the test is running.

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Doug Hull is an Application Engineer at The MathWorks. A MATLAB user since 1994, he gets paid to live, eat, and breathe MATLAB! This blog is dedicated to promoting the File Exchange by highlighting files and original video content.



  • pierre: Hi sherryl and thank you for answering me, Actually, I already tried before to use this property because I...
  • Sherryl: In Response to Post #10 by Bryan - Hi Bryan, By default the analog input object will acquire one second...
  • Sherryl: Hello Pierre, Please look at the OutOfDataMode property. http://www.mathworks .com/access/helpd...
  • Scott Hirsch: Elya - In v7.0, try aviread. This has straightforward syntax for reading a single frame - you could...
  • Scott Hirsch: Eric - That’s a nice suggestion. I often get frustrated when debugging GUIDE guis and ending up...
  • pierre: Hi all, I have the Data Acquisition Toolbox, and I’m trying for 2 weeks to send a step voltage, and...
  • Eric S: It would be great to stop the debugger from coughing somewhere inside the more “internal̶ 1;...
  • Tareq: coef1 = rand(1,3)-0.5; coef2 = rand(1,3)-0.5; lex1=roots(polyder(c oef1)) lex2=roots(polyder(c oef2)) hold all...
  • Luca Balbi: While we’re at it… Checking for a number to be zero is tricky in itself. We’re better...
  • david: perhaps some error checking is in order. After all, it is possible that our randomly generated quadratic...

These postings are the author's and don't necessarily represent the opinions of The MathWorks.

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