6. Testing and Validation

Data Acquisition — Quiz

Test your understanding of data acquisition with 5 practice questions.

Practice Questions

Question 1

For a 12-bit ADC with an input range of 0–3.3 V, what is the voltage resolution per least significant bit (LSB)?

Question 2

What is the minimum ADC resolution in bits required to achieve a dynamic range of at least 100 dB? (Use $\mathrm{DR}\approx6.02N+1.76$)

Question 3

For vibration analysis, a DAQ system samples at 5000 Hz. To achieve a frequency resolution of 0.2 Hz in an FFT, what minimum number of samples and record duration are required?

Question 4

A pressure transducer has a sensitivity of 10 mV/bar. If it measures a pressure of 3.5 bar, what output voltage is produced?

Question 5

A DAQ channel has an input noise density of 10 nV/√Hz and a bandwidth of 2000 Hz. What is the approximate RMS noise voltage?