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Technical Laboratory Practices and Reporting Guide

Learn to work safely and effectively in the laboratory, report findings clearly, understand the scientific method, reduce errors, and present data with precision. This chapter provides insights into equipment handling, data collection, error reduction, and report presentation in technical laboratories.

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Technical Laboratory Practices and Reporting Guide

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  1. Introduction to Engineering TechnologySeventh EditionRobert J. Pond & Jeffery L. Rankinen Chapter 7 The Technical Laboratory

  2. Introduction This chapter is intended to make you aware of how to work safely and effectively in the laboratory and report your findings clearly and efficiently.

  3. Laboratory Technician Be patient and methodical Pay attention to detail Plan and prepare Be accurate Communicate clearly and effectively

  4. Scientific Method – Problem Solving State the problem Form the hypothesis Experiment and observe Interpret the data Arrive at the conclusion

  5. Performing the Experiment Equipment specified Data sheets Group work Conclusions drawn

  6. Reducing Error in the Laboratory

  7. Data Collection and Calculating Results Scale Resolution – no better than one-half of the smallest division

  8. Data Collection and Calculating Results Digital Meter Accuracy – specified as +/- (percent of reading + number of units in the least significant digit) Example: Stated accuracy: +/- (0.5 + 2) Scale reading of 1000 for Figure 7.10 1000*0.005+2 = +/- 7 volts

  9. Presenting Data - Graphing

  10. Reporting Outlining the written report Objective section Equipment section Theory section Procedure section Data section Calculation section Results section Conclusion section Preparing and submitting the report The report checklist Oral reporting Oral report checklist

  11. Reporting

  12. Reporting

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