position of rotating shaft from analog signal

[kramerfrog]

Hello,

I'm pretty new to labview.  I have the following problem:

I have a wind turbine which is spinning in a wind tunnel.  I have an analog visual sensor attached to the shaft of the turbine which is measuring the RPM of the shaft.  I believe I have built the appropriate VI using timing and measurment VI. (perhaps this is not the best way to do this.) and thus I was going to use "peak detection" but haven't completed it.  I was going to use the built in positioning data acquisition but from what I understand this only works with digital signals.

The main problem:

I need to find the position of the shaft in degrees in real time. The shaft spins between 250 - 1000 RPM.   How can I do this?

Attached is my VI.

[kramerfrog]

Hello,

I'm pretty new to labview.  I have the following problem:

I have a wind turbine which is spinning in a wind tunnel.  I have an analog visual sensor attached to the shaft of the turbine which is measuring the RPM of the shaft.  I believe I have built the appropriate VI using timing and measurment VI. (perhaps this is not the best way to do this.) and thus I was going to use "peak detection" but haven't completed it.  I was going to use the built in positioning data acquisition but from what I understand this only works with digital signals.

The main problem:

I need to find the position of the shaft in degrees in real time. The shaft spins between 250 - 1000 RPM.   How can I do this?

Attached is my VI.

[Che_T.]

Hi kramerfrog,

Can you provide details on how the algorithm of finding the position of shaft?  I can't determine if you're looking for help with programming or creating an algorithm for finding the position of the shaft in degrees.  Either way, a datasheet and more information on the sensor would help.

Regards,