11-14-2007 12:00 PM
Hello, Friends
I am interested in developing a data acquisition program from a sensor that gives a pulse signal. I would like that send me please some information about what VI’s I have to use inorder to began the acquisition and How I can measure the pulse frecuency. Some examples will be very excellent.
Please, write me. I will be very thankful
Pablo
11-14-2007 12:32 PM
11-16-2007 11:36 AM
Hello, Friend
I only am interested in knowing the pulse signal data acquisition. I have a flowmeter that give us a pulse signal as a water measure. I would not Know to say you the characteristics of that signal because I am developing the acquisition program in Labview and I have not used the sensor yet. Please help me. I don't know what I have to do to began to develop that program. If you have examples with the reason of the VI and terminals used , It would be very nice.
Pablo
11-16-2007 12:07 PM
You should be able to findout the output of the signal, is it an analog voltage or is this pulse a digital pulse (ie measuring TTL Width or some number of counts for a frequency changing pulse train)? All this is either done with DAQMX analog in vis or counter vis. You really need a clear picture of what the signal is before you can write code. The code should be simple once you know your signal.
Paul
11-19-2007 11:36 AM
Hello, Paul
The signal is a digital signal, exactly a pulse signal. The sensor give me 154 pulses per galon and I don't know how I can measure the frecuency of that signal. Do you have a way to resolve that problem?. Explain me please what kind of VI's I have to use. Some examples or tutorials or documents will be really very nice.
Plese help me
Pablo
11-19-2007 08:19 PM
Probably TTL pulses the frequency depends on the flow rate. Use a counter and use a frequency counter task, there are several examples that ship with labview.
Paul
11-21-2007 09:53 AM
Hello Paul
Thank you for all. I will try to develop my program with your recomendatons.
Cheers
Pablo