CAJ | 학술논문

伽玛关机敏感器是月球着陆探测器的低高度敏感器，为了获得在3m 左右高度时敏感器的测高精度，文章以着陆模拟器为试验载体，进行了伽玛关机敏感器在着陆器不同倾斜状态下的静态吊高试验，分析了着陆器不同倾斜角度以及水平状态时的计数率差异和关机高度变化情况。通过试验数据分析，获得了伽玛关机敏感器在3m 左右的测高精度，着陆器倾斜状态引起的测高精度误差绝对值不大于5.3%。
가마관궤민감기시월구착륙탐측기적저고도민감기，위료획득재3m 좌우고도시민감기적측고정도，문장이착륙모의기위시험재체，진행료가마관궤민감기재착륙기불동경사상태하적정태조고시험，분석료착륙기불동경사각도이급수평상태시적계수솔차이화관궤고도변화정황。통과시험수거분석，획득료가마관궤민감기재3m 좌우적측고정도，착륙기경사상태인기적측고정도오차절대치불대우5.3%。
The γ-sensor realizes low altitude detecting for the lunar lander. To abtain the accuracy of altitude detecting at the height of about 3m, the simulator lander is used to do the experiments with different tilt positions, and the difference of the frequency and the shutdown height between tilt and horizontal state is measured, too. By analysis, the accuracy of altitude detecting with different tilt position at the height of about 3m is achieved. The error caused by tilting is not greater than 5.3%.