Exactly how does Labview make the amplitude measurement using "Tone Measurement" when monitoring amplitude of a waveform?
What is the mathematical operation that Labview uses to make an amplitude measurement when using "Tone Measurement" function?
To see what happens within an Express VI, you can right click it and select Open Front Panel. This was you can follow the code within each subvi to see how it works. There is not one simple mathematical equation used in Tone Measurement to calculate the amplitude but rather a whole process of calculations from the components of the waveform coming into the Tone Measurement.Vi. If you open up all the subvi's you will see what I mean.
Thank you for the information. I've looked into the Tone Measurements Vi a bit more using the front panel display, but I am still a little confused. It mentions finding BINs, but I am lost as to what these are, how it is acquiring them, and how it is using them. Could you provide some help with this?
Yes we have a very detailed tutorial on how the method of signal analysis in LabVIEW, please take a look at the following document.
The Fundamentals of FFT-Based Signal Analysis and Measurement in LabVIEW and LabWindows/CVI
I hope you find it informative!
Thank you for the document! It seems like it will answer my question.