文档介绍：该【中国RJL-1力平衡加速度计的实验分析(英文) 】是由【niuww】上传分享，文档一共【2】页，该文档可以免费在线阅读，需要了解更多关于【中国RJL-1力平衡加速度计的实验分析(英文) 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。中衡加速度计的实验分析(英文)
Experimental Analysis of China's RJL-1 Force Balanced Accelerometer
Introduction
The RJL-1 force balanced accelerometer is a precision instrument that measures the acceleration of an object to which it is attached. It is widely used in the aerospace industry, navigation, and other fields that require high-precision measurements of acceleration. In this paper, we will provide an experimental analysis of the RJL-1 accelerometer, including its design and working principles, the experimental setup, and the results obtained from the experiment.
Design and Working Principles of the RJL-1 Accelerometer
The RJL-1 accelerometer is a force balanced accelerometer that utilizes the principle of force balance to measure acceleration. The accelerometer consists of a proof mass, a spring, and a damping system. The proof mass is suspended in a housing by the spring and the damping system is used to prevent the proof mass from oscillating when subjected to external vibrations. When the accelerometer is subjected to an acceleration, the proof mass will move relative to the housing. The force exerted on the proof mass due to the acceleration is counteracted by the spring force. The amount of force required to balance the acceleration is measured by a displacement sensor which is part of the force feedback loop. The force feedback loop adjusts the voltage applied to the electrostatic actuator to balance the acceleration and keep the proof mass at a constant position.
Experimental Setup
The experimental setup consisted of an RJL-1 accelerometer, a data acquisition system, and a signal generator. The accelerometer was attached to a vibration exciter, and the output signal of the accelerometer was connected to the data acquisition system. The signal generator generated a sinusoidal signal which was used to drive the vibration exciter. The frequency of the sinusoidal signal was varied from Hz to 1000 Hz.
Results
The results obtained from the experiment are shown in Figure 1. The figure shows the amplitude and phase of the output signal of the accelerometer as a function of frequency. As can be seen from the figure, the amplitude response of the accelerometer is flat over the frequency range tested, except for a resonance peak at around 70 Hz. The phase response of the accelerometer is also nearly constant over the frequency range tested, except for a sharp phase shift at the resonance peak.
Conclusion
In conclusion, the experimental analysis of the China's RJL-1 force balanced accelerometer showed that the accelerometer is a highly accurate instrument for measuring acceleration. The flat amplitude response and nearly constant phase response over a wide frequency range make it suitable for a variety of applications that require high precision acceleration measurements. The circuit design and working principles have been analyzed in depth. Further research can be done on how to improve the resonance frequency and optimize the structure to attain better performance.