Excite a Circuit: Wheatstone Bridge Strain Gage Application

[ghostdog]

What is meant by excite a circuit?

My question is what is the excitatoin voltage of a wheatstone bridge? Is this the minimum voltage that needs to be applied across the wheatstone bridge.

I'm looking at a strain gage application for a wheatstone bridge.

Thanks for the super help. This is my first posting!

 

[f95toli]

"Exciting" just means applying a voltage or current.
There is no minimum voltage (or current) as such for abridge, you can make it as small as you want. However, the signal-to-noise ratio will of course be smaller if you you a low voltage.
I.e. the only "limit" is your ability to read out the result.

 

[sir-pinski]

Exciting a circuit means providing a source of energy or voltage to the circuit in order to make it work. In the case of a Wheatstone bridge strain gage application, the circuit needs to be excited with a voltage in order for the strain gage to measure the changes in resistance caused by the applied strain. This excitation voltage is typically the minimum voltage needed for the circuit to function properly and produce accurate measurements. It is important to carefully select the excitation voltage to ensure that it is within the operating range of the circuit and does not damage any components.