中国科学院机构知识库网格系统: 检索

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	An Online Measurement and Calibration Method for a Radio Telescope Sub-Reflector Support Structure Using Fiber Bragg Grating 期刊论文 OAI收割 MICROMACHINES, 2023, 卷号: 14, 期号: 5, 页码: 17 作者: Xu, Qian; Bao, Hong \| 收藏 \| 浏览/下载：18/0 \| 提交时间：2023/11/21 sub-reflector Fiber Bragg Grating (FBG) sensor self-structuring fuzzy network measurement model calibration B-spline functions
	Quantifying the spatio-temporal variability of total water content in seasonally frozen soil using actively heated fiber Bragg grating sensing 期刊论文 OAI收割 JOURNAL OF HYDROLOGY, 2022, 卷号: 606, 页码: 14 作者: Sun, Mengya; Shi, Bin; Zhang, Chengcheng; Liu, Jie; Guo, Junyi \| 收藏 \| 浏览/下载：29/0 \| 提交时间：2023/12/29 Total water content Actively heated fiber Bragg grating (AHFO-FBG) Seasonally frozen soil Calibration model In-situ measurement Freezing depth estimation
	A NSGA-II-Based Calibration Algorithm for Underwater Binocular Vision Measurement System 期刊论文 OAI收割 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2020, 卷号: 69, 期号: 3, 页码: 794-803 作者: Kong, Shihan; Fang, Xi; Chen, Xingyu; Wu, Zhengxing; Yu, Junzhi \| 收藏 \| 浏览/下载：56/0 \| 提交时间：2020/04/07 Calibration Cameras Mathematical model Optical refraction Absorption Nonlinear optics Optical distortion Akin triangular multiobjective optimization refractive camera model underwater calibration underwater measurement
	Complete kinematic calibration of a 6-RRRPRR parallel kinematic machine based on the optimal measurement configurations 期刊论文 OAI收割 Proceedings of the Institution of Mechanical Engineers Part C-Journal of Mechanical Engineering Science, 2019, 卷号: 234, 期号: 1, 页码: 121-136 作者: C.Y.Han; Y.Yu; Z.B.Xu; X.M.Wang; P.Yu \| 收藏 \| 浏览/下载：36/0 \| 提交时间：2020/08/24 Parallel kinematic machine,complete error model,observability index,optimal measurement configurations,calibration experiment,identifiable parameters,robot calibration,stiffness,design
	The research about radiometric technology of two-dimensional rotary table based on image gray level 期刊论文 OAI收割 Eurasip Journal on Image and Video Processing, 2019, 页码: 11 作者: X.Y.Xue; C.X.Liu; J.Qiao; W.B.Zhang; N.Li \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2020/08/24 Image processing,Image grayscale,Two-dimensional turntable,Radiation,measurement,Measurement model,Dynamic calibration,Engineering,Imaging Science & Photographic Technology
	Experimental Investigation on the Mechanical Behavior of a New Three-Dimensional Pressure Transducer 期刊论文 OAI收割 ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, 2016, 卷号: 41, 期号: 12, 页码: 4855-4866 作者: Jiang, Jingdong; Liu, Quansheng; Xu, Jie; Zhang, Chengyuan \| 收藏 \| 浏览/下载：28/0 \| 提交时间：2018/06/05 In situ stress measurement Pressure transducer Soft rock Rheological Calibration Model test
	A sub-pixel extraction method for the center of the circular structure from spot array calibration target (EI CONFERENCE) 会议论文 OAI收割 2012 3rd International Conference on Information Technology for Manufacturing Systems, ITMS 2012, September 8, 2012 - September 9, 2012, Qingdao, China 作者: Liu Y.; Zhang T.; Yang H.; Gao X.; Liu Y. 收藏 \| 浏览/下载：75/0 \| 提交时间：2013/03/25 The imaging measurement system must be calibrated before application. In calibration procedure sub-pixel center extraction is the crucial step for the final accuracy. In this paper a new sub-pixel extraction method is proposed. Edge detection at pixel level is obtained using LOG operator then sub-pixel edge detection is realized using the Facet model. Finally the least squares ellipse fitting is operated on the sub-pixel edge to determine the sub-pixel center. Experiment on a series of simulated images indicates that this algorithm is able to realize the center location accuracy of 0.01-0.02 pixel and meets the requirement of sub-pixel level. (2012) Trans Tech Publications Switzerland.
	Reagentless near-infrared determination of cholesterol in undiluted human serum using interval partial least square (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on Smart Materials and Nanotechnology in Engineering, SMNE 2011, September 17, 2011 - September 18, 2011, Wuhan, China Gao H.; Lu Q.; Huang F. 收藏 \| 浏览/下载：26/0 \| 提交时间：2013/03/25 In order to determination of cholesterol in human serum with no reagent using nearinfrared (NIR) spectroscopy. Interval partial least square (iPLS) was proposed as an effective variable selection approach for multivariate calibration. For this purpose an independent sample set was employed to evaluate the prediction ability of the resulting model. The spectrum was split into different interval. Then the informative region of cholesterol (1688-1760nm) in which the PLS model has a low RMSEP with 0.241mmol/L and a high R with 0.975 is selected with 23 intervals. The results indicate that the informative region of cholesterol can be obtained by iPLS and applied to design the simpler reagentless NIR instruments for inexpensive cholesterol measurement in future. (2012) Trans Tech Publications Switzerland.
	UV-VUV spectral irradiance responsivity calibration for space remote sensing spectroradiometer (EI CONFERENCE) 会议论文 OAI收割 Advanced Materials and Devices for Sensing and Imaging III, November 12, 2007 - November 14, 2007, Beijing, China 作者: Yu H. 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/03/25 In order to overcome the irradiance responsivity calibration troubles caused by the weak response of most spectral radiometers in ultraviolet band and poor ratio of signal to noise and to meet special calibration condition for some remote sensing spectroradiometers in space a spectral irradiance responsivity calibration unit based on parallel light illumination mode is established it is composed of a 150W deuterium lamp and a spherical mirror. The calibration unit gets the output standard value of spectral irradiance by irradiance transfer this way avoids the spectral reflectance measurement difficulty of the spherical mirror. A flight spectral radiometer model used for space remote sense was calibrated in range from 160nm to 300nm the calibration error of spectral irradiance responsivity is 4.7%. Some factors which contribute to calibration uncertainties are discussed.