how to measure current with a 6008, without.....

[jmfox180]

hi there people i'm making a digital multimeter with a 6008 and labview same as the with NIELVIS software... well heres is my question.. is there any way to measure current without using ohm's law as I= V/R ..that means without affecting my proof circuit.. is there any way to measure directly the current?

[Dennis_Knutson]

No. The 6008 can only measure voltage. You can download the user guide and specifications if the one that came with device was lost.

[jmfox180]

so the only way to measure current using de 6008 is by adding a Shunt resistor in series to my proof circuit of a minimun value to measure the voltage drop in that shunt resistor? or do you know another to way to make it?? tks

[Oswald_Branford]

Hi jmfox180!

Like Dennis said, the only way to do it is using the shunt resistor.

I hope this document can be helpful to you:

http://digital.ni.com/public.nsf/allkb/82508CD693197EA68625629700677B70?OpenDocument

Have a great day!

Oswald Branford 

[Wayne.C]

jmfox180,

There are several companies that make current transducers.  These devices measure the current using a CT or a Hall Effect device and put out a voltage that is proportional to the current.  Read output voltage of transducer and scale accordingly.  No need to introduce any additional resistance in your circuit.