MAE334 Quiz 7 - November 14th Given a data set containing 50 points collected at 100 samples/second. 1. What is the frequency spacing, Δf, of a Fourier Transform of the data set? A. 50 Hz B. 10 Hz C. 5 Hz D. 2 Hz E. 0.5 Hz 2. If the input signal was a 7 Hz sine wave would there be spectral leakage or amplitude ambiguity in the frequency spectrum? A. Yes B. No3. In designing an instrument system to achieve a given level of precision, it is usually most economical to choose components A. each of which contributes about the same amount to the overall precision error. B. such that most of the precision error is contributed by one of the components. C. such that the data acquisition system has the lowest precision error. D. such that the sensor has the lowest precision error. 4. The zero order uncertainty of a digital pressure gauge with a display of XX.X PSI is A. ± 0.01 PSI B. ± 0.05 PSI C. ± 0.1 PSI D. ± 0.2 PSI 5. If the static sensitivity of a thermocouple is 100 microvolts/ºC and the resolution of your ADC is 1 millivolt. What is the zero order uncertainty of your system? A. ± 0.05 ºC B. ± 0.1 ºC C. ± 1 ºC D. ± 5 ºC E. ± 10 ºC 6. If the above thermocouple is amplified to a new static sensitivity of 1 millivolt/ºC with an amplifier with a 1% linearity error. What is the design stage uncertainty for the system at a mean temperature measurement of 100 ºC? A. ºC B. ºC C. ºC D.
View Full Document
Unlocking...