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http://dx.doi.org/10.14702/JPEE.2021.497

Test Equipment and Test Portfolio for Education of Strain and Vibration Measurements  

Yang, Jimin (Aero Technology Research Institute, Republic of Korea Air Force)
Lee, Dooyoul (Department of Defense Science, Korea National Defense University)
Publication Information
Journal of Practical Engineering Education / v.13, no.3, 2021 , pp. 497-505 More about this Journal
Abstract
Test equipment for strain and vibration measurement was designed for educational purposes. Widely available and affordable materials were put into making this device. Three strain gauges placed on an iron ruler made cantilevered beam were used to measure values according to external load. An electromagnet triggered excitation and a function generator created vibration of the beam. We present three different tests conducted with this equipment regarding production of scales, measurement of resonant frequency, and calculation of the difference between excitation frequency and measured frequency. Overall, this paper presents a piece of simple yet inexpensive test equipment and its corresponding portfolio with expectations of being applied to the educational field for efficient measurement of load and vibration.
Keywords
Vibration; Resonance; Cantilever beam; Impulse load;
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