Hall Effect Sensor to feed LabView DAQ Block

[alexponce]

Hello all!

Currently working on a project where I need to perform the FFT from an AC Signal and output an analog signal containing all frequency components minus the fundamental. I have been reading a lot about hall effect sensors used to produce a current proportional to the voltage.

My question is: would the DAQ/Program recognize the output AC signal from the hall effect sensor directly? or would I have to condition the signal in some manner such that the DAQ can recognize the signal?

Thanks in advance!

[GerdW]

Hi Alex,

how is "performing a FFT" connected with "reading a hall sensor"?

would the DAQ/Program recognize the output AC signal from the hall effect sensor directly?

Which "DAQ/Program" are you talking about?

Most DAQ devices capable of voltage measurements will be able to measure an AC voltage…

would I have to condition the signal in some manner such that the DAQ can recognize the signal?

Sometimes people want to condition (filter/amplify) a signal before reading it using some DAQ device. It depends on your requirements, signal and DAQ hardware…

Can you provide more information about the hardware you like to use?

[alexponce]

I will be using a variac to step down the AC voltage from 120VAC to about 10VAC. From there, so as to sort of isolate the high side from the low side, I wish to use a hall effect sensor and connect its output to the data acquisition board.