Year: 2025
Type: article
Abstract: This study proposes an electronic-mechanical arm fire device (EMAFD) with enhanced fail-safe mechanism using the arming confirmation sensor that applies a Hall sensor.By activating the sensor as the torque motor is fully rotated, the accuracy of detecting the arming state has been improved.Additionally, the operational temperature range has been expanded from -25°C to -45°C.The device's reliability was validated through testing 108 samples to verify the arming confirmation sensor, arming time and return time.Testing 32 samples across temperatures verified stable operation within -45°C to +75°C.Based on the U.S. military standard, low-temperature, high-temperature, and altitude tests were conducted on four samples, confirming that variations in arming and return times before and after testing were within 10%.Ignition performance was verified through a CBT test of four samples in high (+65℃) and low (-45℃) temperatures, and these results indicate that the proposed EMAFD is suitable for military weapon systems 초 록 본 연구에서는 홀센서를 적용한 장전확인센서를 사용하여 Fail-Safe 기능이 강화된 전자기계식 점화안전장치 를 제안한다.토크모터가 완전히 회전한 상태에서 센서가 작동되도록 하여 장전상태 감지 정밀도를 높였으며, 저 온 운용 범위를 기존 광센서의 -25℃에서 -45℃로 확대하였다.108개의 제작된 장치로 장전확인센서 작동과 장 전시간, 복귀시간을 확인하여 설계의 신뢰성을 검증하였다.32개 장치에 대해 온도별 CBT시험을 통해 -4 5℃~+75℃에서 정상 작동하는
Authors: Joo Young Jin, Seung-gyo Jang
Institution: Agency for Defense Development
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7123345660