Re: Estimating resonant frequency by sweeping the frequency from 100 Hz to...
engkhalid wrote:Hi NabilahFand Henrik Thank you so much for the help. However, the rms value of the sinewave is equal to (peak*0.7). Am I right? Khalid No, it is about 0,707 and equal 1/sqrt(2)......
View ArticleRe: is that any emulator for development?
The real magic comes in when you import all the DAQmx stuff to the new home where the devices really are. Just delete the imported simulated device and MAX ask what you want done with all the stuff....
View ArticleRe: Weird LabVIEW... VI is Editable In Run Time
An update. We've tried changing the zip program but the result still is the same. However, one thing that we realized is that this weird behaviour is only seen when the VIs were loaded in LabVIEW...
View ArticleHow do you separate UDP data streams
Hi. I'm currently using LabVIEW 2013 to read in a UDP data stream (packet) that contains various parameters. I am successful in receiving the UDP packet using the UDP Open and UDP Read vi. On the...
View ArticleRe: data dashboard
The graph should be updating approx 5 times a second. Is that what you are seeing? I'm guessing that if a person's pulse is around 80, you wouldn't get much resolution in the ECG graph at 5 points...
View ArticleRe: arrays and shift registers
gascon26 wrote:The problem that I am having now is passing the values of an array between two while loops. The problem is that a changing array is created in while loop 1 while while loop two is to...
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Output sine wave and read samples with DAQ Assistant
Hi all, I'm attempting to output a sine wave to ao0 and sample from channels ai0 to ai7. I'm using a NI ELVIS II+. I set up a simple vi using DAQ assistants for input and output (see figure below). The...
View ArticleRe: When does LabVIEW release a .dll file after Call Library Function call?
Upon further debuggin, I discoverd an error that migrated to the original "shutdown" sequence and stopped the native procedure from closing the link to the dll. After that, it all seems to be working...
View ArticleCan Application Builder pass varible value to VI
I use application builder to make two executables that are built from the same VI. The only difference is the value of a boolean variable in the VI. In one exe the boolean in the VI is set to true,...
View ArticleRe: Output sine wave and read samples with DAQ Assistant
Nevermind. I got it to work. Forgot to turn on the DAQ :) I was used to not turning it on for sampling (doesn't affect the signals).
View ArticleRe: Can Application Builder pass varible value to VI
see here Pass your boolean as a command line argument.
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Re: stop the program once any botton is pressed
My eyes bleed. Take a look at using an event structure to respond to user interaction. Hey the event even gives you a reference for the button that triggered the event. That might simplify that...
View ArticleRe: sending email and deleting files
Ok here we go, saved for previous version down to 8.6, so should work for nearly everyone.
View ArticleDisplaying a second y-axis
So I am trying to make a graph with 2 y-axes. I have found this confusing guide http://zone.ni.com/reference/en-XX/help/371268M-01/expresswb/disp_y_axis/ I just don't know what the data view tab is at...
View ArticleRe: Displaying a second y-axis
The simplest way, on the graph in LabVIEW, right-click the y-axis and choose "Duplicate Scale". Now you can right-click the graph, select "Properties", and go to the "Plots" tab. From here you can...
View ArticleRe: How do you separate UDP data streams
If all the data is the same type, then you can wire an array as the datatype instead of a cluster. Set the "data includes array or string size" input to False (the default is True). The output will be...
View ArticleRe: stop the program once any botton is pressed
woud you mind to attach the .vi file? i am not that familiar with labview yet.
View ArticleRe: Displaying a second y-axis
Instead of doing an on-line search, I would recomend starting with the LabVIEW help. Doing a search for 'duplicate y axis' brought up the exact instructions.
View ArticleNeed help with preprocessor definitions in the Import Shared Library Wizard
I'd like some help with the preprocessor definitions window. The Wizard says none of the functions in the library file were found in the header file and also says that the following three 'symbols' are...
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