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浏览/检索结果: 共3条，第1-3条 帮助 限定条件 发表日期：2012    专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Correction of baseline drifts due to the pressure changes between attenuated total reflection prism and human skin for noninvasive blood glucose sensing with Fourier Transform infrared spectroscopy (EI CONFERENCE) 会议论文 2011 International Conference on Smart Materials and Nanotechnology in Engineering, SMNE 2011, September 17, 2011 - September 18, 2011, Wuhan, China Wang D.; Lu Q.; Yao L. 收藏  |  浏览/下载：42/0  |  提交时间：2013/03/25 For noninvasive blood sensing with attenuated total reflection (ATR)-Fourier Transform infrared spectroscopy(FTIR)  the baseline of spectra human skin will drift because of the exitence of pressure changes between ATR prism and human skin. To correct the baseline drifts  In the paper  the fingertips spectra in mid-infrared were recorded under the special conditions. A line equation was calculated using the last 14 spectra coupled with the linear regression analysis between the absorbance spectra at the 1035cm-1 and the 950cm-1. And the corrected absorption intensities  after the removal of the baseline drifts  can be applied for the quantification of glucose concentrations in blood easily with the given method in the paper. (2012) Trans Tech Publications  Switzerland.   Analysis on the influence of random vibration on MEMS gyro precision and error compensation (EI CONFERENCE) 会议论文 2011 3rd International Conference on Mechanical and Electronics Engineering, ICMEE 2011, September 23, 2011 - September 25, 2011, Hefei, China Hao X.; Li M.; Han X.; Jia H. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 In order to improve its precision in dynamic environment  a Kalman filter was designed. Firstly  two sets of random drift data of MEMS gyro were respectively analysed  and it was found that the variance of random drift under random vibration significantly increased and its mean also changed. Then calculation results show that attitude angle error under random vibration is 2.6  while in the static test it is 0.25. Analysis on the characteristics of random drift was carried out  and it is found that it can be treated as stable  normally distributed random signal. Finally  a corresponding Kalman filter was designed. The results indicated that after filtering the variance of random drift is reduced to 0.0282  26.4% of pre-filtering and the attitude angle error is reduced to 1.5  57.7% of pre-filtering. The above method can effectively compensate for the attitude angle error of MEMS gyro caused by random vibration. This study can be a reference to the application of low-cost MEMS gyro in aircraft navigation. (2012) Trans Tech Publications  Switzerland.   Plasmaspheric trough evolution under different conditions of subauroral ion drift 期刊论文 Science China-Technological Sciences, 2012, 卷号: 55, 期号: 5, 页码: 1287-1294 He F.; Zhang X. X.; Chen B.; Fok M. 收藏  |  浏览/下载：2/0  |  提交时间：2012/10/21