中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共9条，第1-9条

帮助

条数/页：排序方式：
	High sensitivity and ultra-low detection limit of violet phosphorus-based formaldehyde gas sensor by ultrasonic-assisted laser ablation 期刊论文 OAI收割 MICROCHEMICAL JOURNAL, 2024, 卷号: 205, 页码: 10 作者: Ye, Xiaohui; Chen, Mengzhen; Zheng, Xi; Wei, Miaomiao; Yang, Zhiyuan \| 收藏 \| 浏览/下载：17/0 \| 提交时间：2024/10/08 Violet phosphorus nanoplates Ultrasonic-assisted laser ablation Formaldehyde gas sensor Ppb-level sensing
	Probabilistic environmental model based on ultrasonic sensor networks 期刊论文 OAI收割 Journal of Computational Information Systems, 2012, 卷号: 8, 期号: 15, 页码: 6455-6462 作者: Li, Liqiang; Fan GT(范冠廷); Zhang YZ(张云洲) 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/04/21 Data handling Sensor nodes Ultrasonic sensors Wireless sensor networks
	Design of motion adjusting system for space camera based on ultrasonic motor (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China 作者: Sun Z. 收藏 \| 浏览/下载：85/0 \| 提交时间：2013/03/25 Drift angle is a transverse intersection angle of vector of image motion of the space camera. Adjusting the angle could reduce the influence on image quality. Ultrasonic motor (USM) is a new type of actuator using ultrasonic wave stimulated by piezoelectric ceramics. They have many advantages in comparison with conventional electromagnetic motors. In this paper some improvement was designed for control system of drift adjusting mechanism. Based on ultrasonic motor T-60 was designed the drift adjusting system which is composed of the drift adjusting mechanical frame the ultrasonic motor the driver of Ultrasonic Motor the photoelectric encoder and the drift adjusting controller. The TMS320F28335 DSP was adopted as the calculation and control processor photoelectric encoder was used as sensor of position closed loop system and the voltage driving circuit designed as generator of ultrasonic wave. It was built the mathematic model of drive circuit of the ultrasonic motor T-60 using matlab modules. In order to verify the validity of the drift adjusting system was introduced the source of the disturbance and made simulation analysis. It designed the control systems of motor drive for drift adjusting system with the improved PID control. The drift angle adjusting system has such advantages as the small space simple configuration high position control precision fine repeatability self locking property and low powers. It showed that the system could accomplish the mission of drift angle adjusting excellent. 2011 SPIE.
	Environment modeling of AS-R robot based on BP Neural Network (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Xie M.-J.; Yu X.-L.; Wang Z.-Q. 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/03/25 There are some limitations when environment model of AS-R mobile robot is obtained by only using a separate CCD camera or ultrasonic sensor array. The BP neural network is designed to fuse information of the two sensors to obtain the robot's environment model in this paper. The input of BP neural network is the intercept and slope of the edge line obtained CCD camera and ultrasonic sensor arrays which is processed by through the global coordinates of coordinate transformation. The output of BP network is the fused intercept and slope of the straight edge. Experiment shows that environment model is feasible for the AS-R mobile robot and the environment modeling method has more reliability and accuracy. 2010 IEEE.
	Disc varifocal mechanism to improve efficiency of scene matching navigation system (EI CONFERENCE) 会议论文 OAI收割 2009 2nd International Conference on Future Information Technology and Management Engineering, FITME 2009, December 13, 2009 - December 14, 2009, Sanya, China 作者: Zhang C.-L. 收藏 \| 浏览/下载：20/0 \| 提交时间：2013/03/25 In order to meet special requests of optical imaging sensor in scene matching navigation system a disc varifocal mechanism is proposed for the flight vehicles of long flying time and range. Within small space occupied it can obtain real images with various resolutions. Moreover using plate traveling-wave Ultrasonic Motor as its driven motor can reduce energy loss improve control precision and ensure image obtaining being real-time and stable. Disc varifocal mechanism driven by plate traveling-wave Ultrasonic Motor is high-response and variation in load doesn't affect its performance parameter. Therefore applying disc varifocal mechanism in scene matching navigation system combing software and hardware can obviously improve the accuracy real-time and robust of scene matching navigation system. The experiment showed that when the weight of mechanism was 1.5kg the shortest starting was 0.6ms and the shortest shutoff was 0.5ms. 2009 IEEE.
	智能轮胎传感器的研究现状及发展趋势（二）期刊论文 OAI收割仪表技术与传感器, 2008, 卷号: -, 期号: 10, 页码: 109-112 作者: 张向文; 王飞跃 \| 收藏 \| 浏览/下载：18/0 \| 提交时间：2017/07/16 智能轮胎 Intelligent Tire 集成mems传感器 Suyface Acoustic Wave Sensor 虚拟传感器 Virtual Sensor Integrated Mems Sensor 胎面阻抗传感器 Tire Head Impedance Sensor 超声波传感器 Ultrasonic Sensor 电磁传感器 Electromagnetic Sensor 声表面波传感器
	移动机器人导航中计算智能方法的研究学位论文 OAI收割工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2007 作者: 赵先章收藏 \| 浏览/下载：49/0 \| 提交时间：2015/09/02 移动机器人多超声传感器融合 DSm 理论 PSO算法二型模糊集合降型 mobile robot multi-ultrasonic sensor fusion DSm theory PSO algorithm type-2 fuzzy set type-reduction
	Design and application of distributed ultrasonic ranging system for autonomous mobile robots 期刊论文 OAI收割 WSEAS Transactions on Circuits and Systems, 2007, 卷号: 6, 期号: 2, 页码: 228-234 作者: Zhao HW(赵海文); Zhang YL(张雅丽); Yue H(岳宏); Cai HG(蔡鹤皋) 收藏 \| 浏览/下载：19/0 \| 提交时间：2017/03/07 ultrasonic sensor multi-microprocessor distributed system interference rejection autonomous mobile robot
	多传感器信息融合在自主移动机器人上的应用学位论文 OAI收割工学硕士, 中国科学院自动化研究所: 中国科学院研究生院, 2004 杨秦敏收藏 \| 浏览/下载：87/0 \| 提交时间：2015/09/02 全自主移动机器人多传感器信息融合嵌入式超声传感器环境地图建模栅格模型入射角幻象目标证据理论证据冲突量 Autonomous mobile robot multi-sensor data fusion embedded ultrasonic sensor map-building grid map incidence angle phantom tar