If I have a metal mesh can I test it's resistance with a multimeter?

[algar32]

Is it possible to measure the resistance across a wire mesh with a multimeter? Thanks.

 

[berkeman]

Is it possible to measure the resistance across a wire mesh with a multimeter? Thanks.

It would take a pretty good multimeter to measure the resistance (which is probably in the milliOhms range). What is the application?

The type of meter you would use is a 4-wire DVM with good accuracy. You use the 4-wire technique to eliminate the resistance of the test leads from the measurement. Alternately, you could measure the resistance of the leads on a 2-wire DVM and subtract out that resistance, but most DVMs only give you resistance to 0.1Ohms resolution...

 

[vk6kro]

Is it possible to measure the resistance across a wire mesh with a multimeter? Thanks.

You could pass a fairly large current through the mesh and measure the voltage across it.

For example, if you had a 12 volt supply and connected a 120 ohm resistor in series with the mesh, you could connect these across the 12 volt source and get a current of about 100 mA. You could measure the exact current with a multimeter which you leave in circuit.

Then measure the voltage across the mesh (with another multimeter) and calculate the resistance.
V = I * R. So R = V / I.

 

[algar32]

Thanks for the replies guys. I will try both methods and post back when I try it this weekend. Thanks again!

 

[alphysicist]

Yes, it is possible to measure the resistance across a wire mesh with a multimeter. Resistance is a measure of how much a material resists the flow of electricity, and a multimeter is a tool that can measure resistance. To test the resistance of a metal mesh with a multimeter, you would need to set the multimeter to the resistance measurement mode and then place the metal mesh between the two probes of the multimeter. The multimeter will then display the resistance value of the metal mesh. Keep in mind that the resistance of a wire mesh may vary depending on its thickness, material, and other factors, so it is important to compare the measured resistance to the expected resistance for the specific type of mesh you are testing.