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Quiz 5 solutions

# Quiz 5 solutions - Name Quiz 5(30 pts 1 In the temperature...

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Name______________________ Quiz 5 1. In the temperature range 34 to 42 °C, a digital thermometer produces a linear output from 0 to 2 V. What is the sensitivity of the thermometer? The output (dy) is voltage, the input (dx) is temperature. The static sensitivity is the slope: K = dy/dx = 2 V / 8 °C = 0.25 V/ °C. We are making the assumption here that the relationship is reasonably linear. It is important to keep our (sometimes unstated) assumptions in mind. 2. If the linearity error of a sensor is 3% of full scale output, the drift is 0.5% FSO, and the hysteresis error is 5% FSO, and all other errors are significantly smaller, what is the overall instrument FSO error? The overall instrument error is an estimate of the most probable error magnitude due to all the errors. It is given in this case by: 2 2 2 c linearity drift hysteresis u e e e = + + 2 2 2 5 3 0 5 25 9 0 25 34 25 5 85 6 c . . . . u
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• Spring '10
• staff
• largest single contributor, hysteresis error, overall instrument error, instrument FSO error, probable error magnitude

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