掲載雑誌（和）：
土木学会論文集 I
巻：
-巻
号：
392/I-9号
頁：
367‐375頁
年：
1988年
月：
4月
著者（和）：
田村敬一，川島一彦，相沢興，高橋和之
タイトル（和）：
地震時地盤ひずみの解析を目的とした個別記録方式によるﾃﾞｨｼﾞﾀﾙ強震計の記録精
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抄録（和）：
-
キーワード（和）：
-
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掲載雑誌（英）：
JOURNAL OF STRUCTURAL MECHANICS AND EARTHQUAKE ENGINEERING
著者（英）：
-
タイトル（英）：
Recording accuracy of digital strong-motion accelerograph for analysis of finite ground strains induced during earthquakes．
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抄録（英）：
In the analysis of dense instrument array data obtained by independent triggering and recording systems, it is inevitably necessary to understand the accuracy of the data. Such requirement is particularly severe when ground strainsinduced during earthquakes are evaluated from differential ground displacements at several observing points. Errors associated with numerical integration of acceleration records at low frequency range and difference of sensitivities between instruments are likely to develop unrealistic ground strains. This paper presents experimental analysis on the effect of lower cut-off frequency of instrument correction filter, number of bits of AD converter and its sampling interval on accuracy of calculated displacement. And reliability of relative disp
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キーワード（英）：
finite ground strain, digital strong-motion accelerograph, dense instrument array
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記事区分：
-
区分
論文集