Instrumentation and Control Division, National Aerospace Laboratory(NAL)
Instrumentation and Control Division, National Aerospace Laboratory(NAL)
Instrumentation and Control Division, National Aerospace Laboratory(NAL)
出版者
航空宇宙技術研究所
出版者（英）
National Aerospace Laboratory(NAL)
雑誌名
航空宇宙技術研究所報告
雑誌名(英)
Technical Report of National Aerospace Laboratory TR-844
巻
844
ページ
17
発行年
1984-12
抄録（英）
In this paper, problems of the two types of floated pendulum accelerometers formerly developed by the authors were first discussed. In one of the accelerometers the pendulum in a cylindrical float was supported with pivots and jewels of the output axis, and in the other accelerometer by means of a magnetically centering technique. In order to solve the problems, a Flexure Hinged Pendulum Accelerometer (FHPA) was developed, in which a flat-shaped pendulum was supported with a pair of friction free flexure hinges. This paper describes the principle of operation, goal accuracy, design of the main components (pendulum, pick-off, torquer, damper, and servo amplifier) and also the results of the performance tests. The selected performances and characteristics are as follows : threshold 6×10(exp -7)g, range ±30g, 1g linearity 2.8×10(exp -5)g, g2 error coefficient 1.9×10(exp -5)g/g2, short term null torque stability 3.3×10(exp -6)g, moment of inertia 7.0 gr-cm2, characteristic time of the pendulum 3.26×10(exp -6)sec.
弾性バネ支持方式振子型加速度計の研究
naltr00844.pdf
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