two and four point measurement

deleted-707796 · Post by **deleted-707796** » Wed Mar 20, 2019 8:59 am

The student I am working with has chosen to do the project comparing two point and four point measurements of resistance using a multimeter.

I am not at all sure what I need to do the four point measurement and how to go about it.
Thank you
Karen Conley

norman40 · Post by **norman40** » Wed Mar 20, 2019 4:50 pm

Hi Karen,

I'm assuming that you are working on the project described here:

https://www.sciencebuddies.org/science- ... esistances

A reference in the project bibliography has a description of how to make four wire resistance measurements:

https://www.allaboutcircuits.com/textbo ... asurement/

To make the circuit shown in the reference (3rd diagram from the top) you need a battery and two multimeters. One multimeter is set to measure current (ammeter), the other is set to measure voltage (voltmeter).

An online search on “4 wire resistance measurement” may provide additional information that may be useful.

I hope this helps. Please ask again if you have more questions.

A. Norman

two and four point measurement

two and four point measurement

Re: two and four point measurement