There is a choice of two data acquisition boards to be used to measure the signa

Question

There is a choice of two data acquisition boards to be used to measure the signal identified below. One board is a low resolution 4 bit ADC with voltage settings of+/- 2.5 Volt and +/- 5 Volt max; this board costs $125. The second board is a higher resolution 6 bit ADC and a fixed voltage setting of +/2 10 Volt max; this board cost $350. Only the 6 bit board has AC coupling available. The signal to be measured is a sinusoidally varying signal of 1.2 Volt rms at 10 Hz along with a 0.25 Volt DC bias due to a signal conditioner.

4a: What is the resolution (incremental step) of the 6 bit board? (Show calculations)

4b: What ARE the different resolutions possible for the 4 bit board? (Show calculations)

4c: which board is the smart one to purchase and WHY?

Explanation / Answer

The answer of following question is asfollows .

The board which is smart is 8 bit board it is smart because it has a tendency to change itself from binary to octal .

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