In this study, the uncertainty in the ballistic test was calculated. Characteristic factor plots were used to identify the sources of uncertainty. The results are as follows. First, the uncertainty about the projectile was calculated to be 0.008m/s. Second, the uncertainty for depth measurement was calculated to be 0.03mm. The biggest factor influencing the uncertainty was the human error by the measurer. Therefore, in order to reduce the uncertainty, it is necessary to minimize human intervention by introducing automatic measuring equipment.

ABSTRACT
 1. 서 론
 2. 이론적 배경
  2.1 방탄시험
  2.2 방탄시험에서의 측정불확도
 3. 연구 설계 및 방법
  3.1 탄속 측정불확도 인자 분석
  3.2 깊이 측정불확도 인자 분석
 4. 방탄시험 측정불확도 산출결과
  4.1 탄속 측정불확도 추정
  4.2 후면변형 측정에 대한 측정불확도
 5. 결 론
 References

• 구승환(Defense Reliability Research Center, Defense Agency for Technology and Quality) | Seung-Hwan Gu Corresponding Author
• 윤효진(Defense Reliability Research Center, Defense Agency for Technology and Quality) | Hyo-Jin Yoon
• 박경미(Defense Reliability Research Center, Defense Agency for Technology and Quality) | Gyeong-Mi Park