Journal of the Japan Society of Technology Education
Online ISSN : 2434-6101
Development of a Load-Cell-Driven Round Bar Grip Measurement System for Balance Learning of the Force Exerted on a Beam as Teaching Materials
Takashi YAMADATomio WATANABE
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JOURNAL OPEN ACCESS

2019 Volume 61 Issue 1 Pages 27-34

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Abstract

In this study, we developed a load-cell-driven round bar grip measurement system, a teaching resource for how to balance the force exerted on a beam. The system comprised grip measurement device, load cell converter, A/D converter, and personal computer. The grip measurement device consisted of an aluminum round bar divided into upper and lower grip shafts, and it had an internal structure that shifts the upper grip shaft in a direction directly below the load cell. The force applied to the grip measurement device when the upper grip shaft undergoes a bending deformation could be measured by two load cells. In addition, we evaluated the system through classroom practice, by engaging students of a school of technology/engineering education. According to the results of evaluation, the system generated interest and enthusiasm about the structure of the grip measurement device. These instructional materials enabled experiential confirmation of calculation results for the counterforce of the point of balance when force was exerted on a beam, and thus, they proved to be effective teaching materials for enhancing knowledge and understanding of actual design technology from the viewpoint of cooperation of mechanical design and electric design.

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