User`s guide

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Document 4: Optional Activities in this Laboratory
1. Create a shared data file for the class; consolidate measured internal pressure from all the
students. What is the average and standard deviation of the measured value? What are
some of the possible causes of these variations?
2. Before opening the can in this experiment, shake the can for 5 seconds, measure the
change in internal pressure. What are the possible causes of the change?
3. Before opening the can, take two data recordings, one with the DAQ Assistants’ input
voltage range set to -10V to 10V, one with it set to -2V to 2V. Analyze the data and find
out the resolution of each recording. Why are they different?
4. Read the user manual for the signal conditioner and change the gain setting. Compare the
resolutions of strain readings and pressure readings under different gains.