Hello,
I have a simple question, which can be answered almost everybody in the forum. I want to supply a dc current to a material from two contact and measure the voltage from another two contact, sort of an I-V measurement. What sort of equipment do I need for it?
I made my small research and I found couple of alternatives such as, keithley 2400 SMU and adjustable power supplies form keithley and Agilent. One is a SMU and the others are power supplies and as far as my knowledge concerned, I should say that I am confused a little bit.
As the requirement:
setting a current value and increasing the value with steps until the end value with defined steps
measuring the voltage simultaneously with the same equipment
logging the data with the pc to calculate the resistance of the material
I know there are lots of answers depends on the precision and the voltage-current ranges, but I ask to have an rough idea about the test equipment.
Cheers!