goldfronts1 Posted February 24, 2011 Share Posted February 24, 2011 Hi I have DAQ Factory Express and LabJack U3-HV. I am new to this and wanted to find out if anyone may have some guidance on how I setup this system to graph and record data from a cyclic voltammetry. Any .ctl files you may have would be greatly appreciated. Thanks Link to comment Share on other sites More sharing options...
AzeoTech Posted February 24, 2011 Share Posted February 24, 2011 Perhaps you can tell us what cyclic voltammetry is? I'm quite curious... Link to comment Share on other sites More sharing options...
goldfronts1 Posted February 24, 2011 Author Share Posted February 24, 2011 Its an electrochemical measurement. I want to plot current vs voltage. And current vs time.(waveform) Link to comment Share on other sites More sharing options...
AzeoTech Posted February 24, 2011 Share Posted February 24, 2011 Are you able to read the current and voltage? Do you have sensors? In general to read current you have to convert it to voltage using a precision resistor or CT, though CT's don't work well at low currents. DAQ devices can't read current directly. Any that say that read current have the resistor internally. Just remember when selecting the resistor that your measurement will only be as precise as the resistor. High precision resistors tend to be more stable with temperature. You'll also need to calibrate somehow. Once you have two channels reading your values, doing the graphs in DAQFactory is simple. Link to comment Share on other sites More sharing options...
goldfronts1 Posted February 24, 2011 Author Share Posted February 24, 2011 I have everything setup to measure the current and voltage. I just am lost on how to graph it with DAQFactory. Do I need some kind of .ctl file coded? Thanks Link to comment Share on other sites More sharing options...
AzeoTech Posted February 24, 2011 Share Posted February 24, 2011 I recommend going through the guided tour in the User's Guide as it will explain how to create a graph. It should only take you about 45 minutes to go through the entire thing. Link to comment Share on other sites More sharing options...
sepehr Posted August 11, 2013 Share Posted August 11, 2013 Hi Goldfronts1, it seems that you did the exactly same project as what I have to do. I would very much appreciate if you could please help me on how to get voltage and current values from a potentiostat, using LabJack device and DAQfactory software. Thank you so very much for your time. Sepehr Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.