机构

• 金属研究所 [1]
• 地质与地球物理研究所 [1]
• 计算技术研究所 [1]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [4]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2023 [1]
• 2018 [1]
• 2009 [2]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 An In Situ Detection System for Obtaining IRM Acquisition Curves and Alternating Field Demagnetization Remanence Curves of Rocks 期刊论文  OAI收割 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2023, 卷号: 72, 页码: 12 作者:  Tang, Ruiqi;  Xu, Jiansheng;  Qin, Huafeng;  Wang, Xuting;  Song, Shanshan   |  收藏  |  浏览/下载：16/0  |  提交时间：2024/01/02 Alternating field demagnetization (AFD)  in situ detection  isothermal remanent magnetization (IRM) acquisition curves  magnetic properties of rocks  pulsed magnetization   Toward improving indoor magnetic field-based positioning system using pedestrian motion models 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS, 2018, 卷号: 14, 期号: 9, 页码: 20 作者:  Luo, Haiyong;  Shao, Wenhua;  Zhao, Fang;  Crivello, Antonino   |  收藏  |  浏览/下载：29/0  |  提交时间：2019/08/16 Indoor location-based services  pedestrian motion model  magnetic field positioning  attitude detection  indoor positioning   A high-speed acquisition and processing system of the laser speckle signal on the magnetic fluid (EI CONFERENCE) 会议论文  OAI收割 International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China 作者:  Sun Y.;  Sun Y.;  Wan Q.-H. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 In order to achieve the dynamical detection and real-time analysis of the movement status of the magnetic fluid  according to the difficulties of the detection of the magnetic fluid  established a high-speed acquisition and processing system of laser speckle signal on the magnetic fluid. First of all  the FPGA (EP2C8T144C8N) drived the linear array CCD(TCD1501D) to scan in the corresponding time sequence given by the computer  collected the laser speckle interferometric image in rapid change on the surface of the magnetic fluid  which followed the movement of the magnetic fluid  and the signal collected by CCD was converted into the digital data through the high-speed A/D convertor and stored into the internal buffer FIFO of the FPGA  whose width and depth were designed by the user as required. Then  the FPGA sent the digital signal of the laser speckle interferometric images into the computer through the USB2.0 highspeed differential bus  whose transmission rate can reach 480Mb/s in theory. Finally  the distribution of the laser speckle on the magnetic fluid was messy and random  which carried certain information about the surface of the magnetic fluid  based on the theories of the statistic correlation and the subdivision of images  analysing and processing the laser speckle interferometric images  indirectly got the movement status of the magnetic fluid under the electromagnetic field. The experimental results show that: the High Speed Acquisition and Processing System has the advantage of full-court  non-contact  non-invasive  high-precision and high reliability and so on. The detection resolution of high speed acquisition and processing system is superior to 1m and the sample rate is 3Msps  which basically meets the requirements of the magnetic fluid movement state detection. 2009 SPIE.   Ultra-sensitive detection of magnetic field and its direction using bilayer PVDF/Metglas laminate 期刊论文  OAI收割 Sensors and Actuators a-Physical, 2009, 卷号: 153, 期号: 1, 页码: 64-68 X. W. Dong; B. Wang; K. F. Wang; J. G. Wan; J. M. Liu 收藏  |  浏览/下载：17/0  |  提交时间：2012/04/13 Magnetoelectric coupling  Laminate  Magnetic field detection  earth iron-alloys  piezoelectric ceramics  composites  nanostructures  polymer  films