Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
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Development of an Impact Force Measurement Device with an Attached Strain Gauge

스트레인게이지가 부착된 충격력 측정 장비 개발

  • Jeong, Ik-Su (Department of Physical Education, College of Education, Chungnam National University)
  • 정익수 (충남대학교 사범대학 체육교육과)
  • Received : 2012.01.30
  • Accepted : 2012.05.15
  • Published : 2012.06.30
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Abstract

The purpose of this study was to develop an impact force measurement device in order to facilitate the acquisition of quantitative data for the analysis of various sporting events. The device was designed to include cylindrical aluminum supports of 220 mm diameter, which allows mounting and dismounting of the device on walls and frames. In addition, a hard sponge for impact absorption, as well as 4 springs, were attached to the plate. Both were attached to prevent psychological variables and injuries. When a subject applies force on the device, accurate data about the maximum repulsive force is acquired in real time, with a lag of only 0.001 s. The device was calibrated in four steps: (1) increase, (2) increase, (3) increase-decrease, and (4) increase-decrease. The maximum relative expanded uncertainty was 0.166%, indicating that the impact force measurement was sufficiently reliable. The proposed device can be applied to various sporting situations and is expected to be useful for studying kinetics.

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References

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