Does NI have I to V Universal Signal Converter Hardware/Card

[MDPatil]

Dear All.

I am searching "Universal Signal Converter I TO V".

Is it available with NI Hardware?

Manohar

9209206260

[Henrik_Volkers]

Resistor?

[crossrulz]

Are you trying to measure the current of a signal?  What I typically do is use a really small resistor in the signal path.  Something or 0.1 to 1 Ohm works well.  You can then measure the voltage drop across the resistor and divide by the resistor value.  You have now measured the current of the signal.

You also might want to give this a read: Measuring Current with an Analog Input

[Buechsenschuetz]

A shunt resistor will work, however, for very small currents you will yield only small voltages. If you try to measure a maximum current of 1 milli-amp, a 1 Ohm resistor will yield just 1 mV for the full range. If you need higher resolution for smaller currents and do not want to use bigger resistors, you may use a so-called transimpedance amplifier. You can build one yourself with a few components and a split power supply of around +/- 15VDC. Ready-made current-to-voltage converters are available, too. For very small currents you may look for photodiode preamplifiers.

[Henrik_Volkers]

And there is the µCurrent

More info at:

http://www.eevblog.com/projects/ucurrent/

http://alternatezone.com/electronics/ucurrent/uCurrentArticle.pdf