Study of the Extremely Low-Frequency Noise Characteristics of a Micro-Thrust Measurement Platform.

Figure 10 a–c illustrate that with increasing pivot thickness, the PSD at the measuring points of the pendulum frame exhibits a clear trend of decreasing and then increasing under two different random vibration environments, and an optimal solution is observed at a sheet thickness of 0.2 m m .

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It can be found that with the increasing length of the pendulum rod, the PSD at the pendulum measuring point under two different random vibration environments shows an obvious trend of decreasing and then increasing, and an optimal solution exists when the pendulum rod length is 2 m .

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