VI That calculate Current,voltage & resistance of circuit & digitizing analog wave

[mundakarachi]

i requre a VI that calculate current, voltage & resistance
how can I digitise my analog signal after reading & display from daq
Channel
Thanks
Mundakarachi

[Dennis_Knutson]

I'm not sure exactly what you're looking for. A DAQ board will only measure voltage. There are numerous shipping examples of analog in that acquire and display this voltage. To measure current, you will need to have a shunt resistor of a known value in series and measure the voltage across it. Using ohm's law, you can then calculate the current.

[mundakarachi]

Thanks for supportive answer
basically I am acquiring a signal and additionally i want to measure current with
voltage.if it not please possible please assist me in calculating the voltage of
any signal or voltage

[Dennis_Knutson]

Ohm's law says V=IR. Voltage = current times resistance. If you have a voltage measurement across a known resistor, you can calculate current. I=V/R. To measure current with your DAQ board, you need to put a known value resistor in the circuit (the shunt resistor I mentioned) in series and then measure the voltage drop across it with the DAQ board. When you only know one variable like voltage, you cannot determine current without knowing the resistance and you can't calculate resistance from a coltage reading without knowing the current. This is pretty basic stuff. What exactly are you having trouble understanding?