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在采用垂直悬挂弹性系统的海洋重力仪中,由于弹簧本身的质量不可忽略,受到水平扰动时就可能影响测量精度。L.J.B.LaCoste和J.C.Harrison曾分析过这种影响,本文建立的物理模型更接近于实际情况,文中还建立了数学模型,分析了各种参数(质量、弹簧初始长度、拉丝长度等)的影响。最后得出了与文[1]和[2]不尽相同的结论:只要适当控制弹簧初始长度就能消除水平扰动影响。
In a marine gravimeter with a vertical suspension elastic system, the accuracy of the measurement may be affected by horizontal disturbances due to the non-negligible mass of the spring itself. L.J.B. LaCoste and J.C.Harrison have analyzed this kind of influence, the physical model that this text set up is more close to the actual situation, the article also set up the mathematical model, has analyzed the influence of various parameters (quality, spring initial length, drawing length, etc.). At last, we can draw the conclusion that different from the ones in [1] and [2]: the influence of horizontal disturbance can be eliminated by properly controlling the initial length of the spring.