ME451_S10_lab2_report

ME451_S10_lab2_report - values and standard deviations as...

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OREGON STATE UNIVERSITY ME 451 - INTRODUCTION TO INSTRUMENTATION AND MEASUREMENT SYSTEMS Lab Report Guidelines – Strain and Force Lab – Spring 2010 Due: Thursday, May 6 at the end of your lab session In this experiment beam deflection is the independent variable, and strain is the dependent variable. I. INTRODUCTION Briefly describe the purpose and scope of the experiment. II. METHODS Provide enough detail (and no more) to allow a student with your background to repeat the experiment. Include the following: 1. List of all equipment used, including manufacturers, model numbers, and serial numbers. 2. Illustration of the hardware used for the experiment. 3. Block Diagrams and Front Panels of LabVIEW computer programs used for the experiment. 4. Procedures used to collect and analyze the data. 5. The equations for calculation of strain. Explain the meaning of all the variables. 6. Uncertainty analysis applied to the equation for strain. III. RESULTS 1. Generate plots that show measured strain at both gauge locations versus displacement. Show average
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Unformatted text preview: values and standard deviations as error bars on the graphs. 2. Include on these plots the expected beam behavior, with uncertainty shown as dashed lines. Include example calculations that show the values of any variables used in the calculations (e.g. width of the beam, modulus of elasticity, etc.). 3. Generate a table that quantitatively compares the measured and expected strain values. IV. ANALYSIS Interpret the results. Compare measured results with expected results. Analyze any discrepancies. 1. Critically compare the measured and calculated values, and conclude whether they agree or not. 2. List possible reasons for discrepancies, and what you would do to evaluate those reasons. 3. Decide whether or not elementary beam theory works in this situation. V. CONCLUSIONS List without elaboration the conclusions that are supported by the results of the experiment....
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This note was uploaded on 10/03/2010 for the course ME 451 taught by Professor Staff during the Spring '08 term at Oregon State.

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