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Everything posted by thomas2609

  1. Hi, i wonder if already anyone tried to use ocr software with labview. who has an idea about how this could work?
  2. looks like the problem is the mailserver configuration... not labview. just google for the error message and you will finde everything you need
  3. maby he should use a servo motor and try to generate a pulse with modulated signal :-) but he would need a bit more than a 6009 ...
  4. first find a data sheet of your sound card; there you should find all important parameters; (cannesl, sampling rate, inputvoltages......) input bandwith is about 20 Hz to 20 kHz (mind Nyquist–Shannon sampling theorem) so you can measure 2 channels if you have a stereo(input) soundcard. to use the soundcard in labview, just use the sound vi's a wave file is nothing more than measured values and the sampling information ( dt = 1/sampling frequency) thomas ZITAT(blueguard @ Feb 4 2008, 04:26 PM)
  5. maby someone needs my vi to get the default printer name .
  6. i did a file dialog, some time ago, with active-X, see http://forums.lavag.org/reading-multiple-f...7519#entry27519 also tried it with .net but hade the same problems with dialog not on top. but since i upgradet to LV version 8.0.1 i don't see any need to programm a file dialog on my own. instead i perefere the built in file dialog.
  7. ZITAT(TiT @ Jan 14 2008, 10:18 AM) i do have the same problem, but Bias is correct!
  8. ZITAT(LV Punk @ Dec 19 2007, 06:13 PM) also on http://zone.ni.com/devzone/cda/epd/p/id/18 there are some example VI's, how to get Windows timezone information (from kernel.dll). Example is quite interesting if someone has to deal with WCHAR.
  9. ZITAT(TiT @ Dec 19 2007, 11:49 AM) why you don't you just read out the system time through kernel32.dll (see atached example LV8.0)? thomas
  10. i recently compiled(+ made an installer) a LabVIW (8.0.1) program in which i used the ActiveX controll MSComDlg.ICommonDialog. on my developement system i had visual basic 2005 express installed, so i had no problems using ActiveX. but when i installed the program on a other system without any developer license (so no VB2005Express) installed on it, i got the error message again. now i wonder where i made any misconfiguration, would it be neccesary to add some M$ VB Run-Time Redistribution Pack? Thx for any information cheers thomas
  11. Hi, i wonder if anyone ever tried to make an AM reciver with a Ni DAQ card. cheers thomas
  12. my version of multible files select using active x. if you encounter MSComDlg.ICommonDialog "Class is not licensed" see http://forums.ni.com/ni/board/message?boar...ssage.id=214513 you can fix that by installing for example visual basic 2005 express http://msdn.microsoft.com/vstudio/express/
  13. ZITAT(AnalogKid2DigitalMan @ Mar 28 2007, 11:45 PM) as an alternative i figured out a way to drive the lm35 with the ni600x +5V internal power. see http://cache.national.com/ds/LM/LM35.pdf ( >> FIGURE 5 <<) so you need 3 additional resistors and can measure in differential mode. (very nice!) ;-) as i need the lm35 only for demonstration i don't worry how exact resistor values influence the accuracy of the measurement (i used 220 Ohm instead of the 200 Ohm). my guess is that the error will be >10% i hope that i could provide some help on the topic cheers thomas
  14. ZITAT(SteveL @ Oct 10 2006, 10:39 AM) hi, i know the problem, i guess it depends on the input circuit of the 600x (see http://www.ni.com/pdf/manuals/371303e.pdf page 10) compare with http://www.ni.com/pdf/manuals/371022g.pdf page 37; a workaround to connect the lm35 to the 6009 would be to use an external power source like battery or other dc power supply. i did that with a patery pack like http://www.mercateo.com/p/115-970332/Batte...XLR03_AAA_.html (~1,50€) 4 AAA (6V) are ok for the LM35 (supply voltage acording to the data sheet 4 - 30V) with this configuration you can use the differential mode to measure the temperature. Bat+ connect to +Vs Bat- connect to GND and AI4 Output connect to AI0 I am sure there is a better solution, but at least it works ;-) cheers thomas
  15. "use localized decimal separator" worked, after restarting labview. thx for your help thomas
  16. hello, i just wonder why only one of these 2 Math scripts workes. 1.) x= 0:0.1:1 does not work in LabVIEW 8.0 but In MATLAB 2.) x= 0:1e-1:1 workes in LabVIEW 8.0 and in MATLAB ad 1 error message "Error in function range at line 1. You cannot specify a step size of zero for a range." aha, well 0.1 is not zero in my eyes. can anyone tell me whey my LabVIEW 8.0 does that? my guess whould be that it is a bug. :-) cheers thomas
  17. i recently had the problem that i wanted to run a DAQcard 1200 under labview 8.0. i had a lot of problems bringing it to work. so i called the ni helpdesk and got a very helpful reply. the link they sent tells what to do, step by step. maby it helps someone else too. How Do I Use Older Versions of NI-DAQ (6.9.3) with LabVIEW 7.0, 7.1, or 8.0? http://digital.ni.com/public.nsf/websearch...B2?OpenDocument
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