04-20-2010 10:20 AM
I'm currently completing my final year project and I am using an LVDT. I need to take the output signal from it and demodulate it to give a linear output that intersects the origin (instead of the V output). As I am a bit of a novice with LabView, any help is appreciated!
Lewis.
P.S. I am using Labview 8.5.1
04-21-2010 08:02 AM
Lewis,
What have you tried so far? Do you have the data acquisition working? Do you have a mathematical formula which represents the phase demodulation?
The people who participate in this Forum will not do your projects for you, but we will answer specific questions. Post what you have so far with some typical data saved as defaults and point out what works and what does not. For the parts which do not work, indicate what the result is and what you expected. Include any error codes or messages as they are often very useful.
Lynn
04-21-2010 08:58 AM
luigi64 wrote:I'm currently completing my final year project and I am using an LVDT. I need to take the output signal from it and demodulate it to give a linear output that intersects the origin (instead of the V output). As I am a bit of a novice with LabView, any help is appreciated!
Lewis.
P.S. I am using Labview 8.5.1
This forum works this way. You present program design ideas. And we will discuss them with you, and help you on the way to a solution. But anyway here is a freebie http://www.cosmolearning.com/video-lectures/lvdt/
04-25-2010 08:47 AM
04-26-2010 08:06 AM
First you need to understand the mathematics of what you are trying to do. Work through an example of multiplying two sine waves of the same frequency but with different phases (on paper). Then try to implement that in LabVIEW code. For simple applications with clean signals that may be good enough to produce some usable results.
When you have gotten that far, post your code along with the data you are using and ask questions about any problems you are still having.
Lynn
04-26-2010 09:26 AM
This is a basic synchronous demodulation setup.