Finding RMS value of Sensor output( alternating sinusoidal voltage varying b/w 1.5 to 3.5)

[nidwil]

I am reading current sensor output which is alternating sinusoidal voltage (varying b/w 1.5 to 3.5) using labview interface for arduino....how can i find the rms value of this signal?.....i am not able to connect RMS block to sensor output.....error message is that no connection possible b/w double & 1D  array.....how can solve this problem

[JensG69]

Look for the RMS PtByPt.vi (e.g. via Quick Drop), and you can do your RMS calculation on the fly.

Regards, Jens