基于伺服比较式位移传感器的自身的特点，和另外附加的一套用于确定周期位置的装置，实现了大量程的绝对位移测量。
Based on the characteristics of the servo-comparison method and an additional apparatus for deciding the certain periods, an absolute displacement sensor with a wide measuring range is realized.
计算各组变异系数、标准差、极差、均数95%可信区间，比较连续3个心动周期与5个心动周期的参数测量值。
The standard deviation, range, variation coefficient, 95% confidence interval were analyzed, the average values of 3 cycles were compared with those of 5 cycles.
本文同时还对其中42个海城余震的初动半周期和初动振幅进行了测量并求出这些地震的震源参数，对二种方法得到的结果进行了比较。
Source parameters for 42 out of 59 events can be obtained by he two approaches, and their results are simply compared as well.
本文同时还对其中42个海城余震的初动半周期和初动振幅进行了测量并求出这些地震的震源参数，对二种方法得到的结果进行了比较。
Source parameters for 42 out of 59 events can be obtained by he two approaches, and their results are simply compared as well.
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