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压力盒加长引线和通道扩展模块对压力盒标定影响
发表时间:2011-07-31 浏览量:1658 下载量:450
| 全部作者: | 胡琛琛,张鹏,钱开 |
| 作者单位: | 中国矿业大学深部岩土力学与地下工程国家重点实验室,中国矿业大学力学与建筑工程学院 |
| 摘 要: | 通过对电阻应变式压力盒的室内油标试验,分析DT515数据采集器主机连接通道扩展模块(channel expansion module,CEM)以及压力盒加长引出电缆对标定结果的影响。结果显示:DT515主机在连接CEM后所采集到的压力盒初值发生了变化,但标定曲线斜率几乎不变;压力盒加长引出电缆对标定曲线的斜率影响较小,可以忽略不计;在增加CEM和压力盒加长引出电缆后,压力盒依然能使标定曲线保持较好的线性,其标定相关系数R2仍然较好地保持在0.99左右。 |
| 关 键 词: | 岩土工程;电阻应变式压力盒;通道扩展模块;油标 |
| Title: | Influence of using channel expansion modules and lengthening pressure cell cables on calibration of pressure cells |
| Author: | HU Chenchen, ZHANG Peng, QIAN Kai |
| Organization: | State Key laboratory for Geomechanics and Deep Underground Engineering, School of Architecture and Civil Engineering, China University of Mining and Technology |
| Abstract: | The chief object of this research is to survey the influence of using channel expansion module(CEM) and lengthening pressure cell cables on the calibration of resistance�strain pressure cells. The results show that the pressure cells' initial values change when a CEM is connected to the DT515, however , slopes of calibration curves almost remain the same; the influence of the extended cables on the calibration of pressure cells is so faintness that can be ignored; all the pressure cells remain the fine linearity of the calibration curves of which the correlation coefficients R2 are approximately 0.99. |
| Key words: | geotechnical engineering;resistance�strain pressure cell; channel expansion module; calibration |
| 发表期数: | 2011年7月第14期 |
| 引用格式: | 胡琛琛,张鹏,钱开. 压力盒加长引线和通道扩展模块对压力盒标定影响[J]. 中国科技论文在线精品论文,2011,4(14):1293-1298. |
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