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一九八一年五月,我们台标定仪器常数。在测到东西向摆时,记录图上波型有抖动现象。很明显,这是测试中光点在抖动造成的。这肯定会给测量结果带来一定的误差。那么,这是什么原因造成的呢?在分析这一故障时,我们采取了缩小问题存在的范围,步步进逼的分析方法。首先分析故障可能产生的原因和地方。是有干扰源吗?我们测定北南向摆时,没有出现这种情况。又测试垂直向摆,也无这种抖动现象。再
In May 1981, our station calibrated the instrument constant. When measured to the pendulum, record the waveform jitter phenomenon. Obviously, this is caused by the jitter of the light spot in the test. This will surely bring a certain error to the measurement results. So, what is the cause? In analyzing this failure, we have taken to narrow the scope of the problem, step by step approach to analysis. First of all, analyze the possible causes and places of faults. Is there any source of interference? We did not find this situation when we measured the north-south pendulum. Also test the vertical pendulum, there is no such jitter phenomenon. again