I have an issue with using concept of SNR in many instrumentation. To ask the question more clear, I want to go with a particular example.
Let's say a Wheatstone bridge type 500N nominal force transducer similar to this one signal is amplified with this special industrial amplifier(HBM-AE101). We can set the gain of the amplifier such that +/-10N force variation can be matched to +/-10V analog voltage output. +/-10V is the range of the 16-bit data acquisition board.
Now my problem is what SNR should be aimed. What determines the target SNR and what is adequate? Do we need the resolution information of the analog output and decide about the SNR needed?
I'm kind of lost what questions to be asked and how to start with this. Could you give an example how to approach such instrumentation based on the information I provided.
Let me ask this way, if I'm after a resolution of 100mV variation(coming from the transducer amplifier) what SNR is adequate?