中国科学院机构知识库网格系统: 检索

Low-Cost Photoelectric Flow Rate Sensors Based on a Flexible Planar Curved Beam Structure for Clinical Treatments 期刊论文 OAI收割
ADVANCED HEALTHCARE MATERIALS, 2024, 页码: 10
作者: Cao XF(曹馨芳); Li QL(李沁蓝); Li, Shuang; Xu XK(徐新凯); Wang, Liyang

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收藏 | 浏览/下载：17/0 | 提交时间：2024/06/11

flexible structure medical device photoelectric flow rate sensor planar curved beam

A Pressure-Based High-Quality Wrist Pulse Measurement System With an Application in Emotion Analysis 期刊论文 OAI收割
IEEE SENSORS JOURNAL, 2023, 卷号: 23, 期号: 18, 页码: 21821-21831
作者: Liu, Zeyu; Cheng, Long; Li, Zhengwei

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收藏 | 浏览/下载：24/0 | 提交时间：2023/12/21

Emotion analysis photoelectric effect pressure sensor pulse pulse wave assessment wearable devices

Intentional Blocking Based Photoelectric Soft Pressure Sensor with High Sensitivity and Stability 期刊论文 OAI收割
SOFT ROBOTICS, 2022, 页码: 12
作者: Li, Zhengwei; Cheng, Long; Liu, Zeyu

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收藏 | 浏览/下载：41/0 | 提交时间：2022/07/25

pressure sensor soft sensor intentional blocking structure photoelectric effect

An Ultra-Stretchable and Highly Sensitive Photoelectric Effect-Based Strain Sensor: Implementation and Applications 期刊论文 OAI收割
IEEE SENSORS JOURNAL, 2021, 卷号: 21, 期号: 4, 页码: 4365-4376
作者: Li, Zhengwei; Cheng, Long; Song, Qingkun

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收藏 | 浏览/下载：44/0 | 提交时间：2021/03/29

Capacitive sensors Optical sensors Sensitivity Robot sensing systems Strain Light emitting diodes Strain sensor soft and stretchable sensor photoelectric effect wrist pulse detection hand-motion monitoring

Full Digital Processing System of Photoelectric Encoder 期刊论文 OAI收割
Sensors, 2019, 卷号: 19, 期号: 22, 页码: 13
作者: C.H.Zhao; Q.H.Wan; L.H.Liang; Y.Sun

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收藏 | 浏览/下载：22/0 | 提交时间：2020/08/24

photoelectric encoder,full digital,error compensation,normalization,optical encoder,displacement,sensor,Chemistry,Engineering,Instruments & Instrumentation

An ASIC chip with pipeline ADCs for CCD sensor imaging system 期刊论文 OAI收割
Sensors and Actuators a-Physical, 2018, 卷号: 279, 页码: 284-292
作者: Sun, Z. Y.; Zhang, D.; Fang, W.

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收藏 | 浏览/下载：31/0 | 提交时间：2019/09/17

ASIC ADC Photoelectric sensor CDS CCD Image cmos circuit camera sfdr Engineering Instruments & Instrumentation

Research on 3D Photoelectric Torque Sensor with High Integration 会议论文 OAI收割
2nd International Conference on Electrical, Automation and Mechanical Engineering (EAME), Shanghai, China, APR 23-24, 2017
作者: Liu YW(刘玉旺); Wang FH(王福华); Zhang DF(张德福)

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收藏 | 浏览/下载：26/0 | 提交时间：2017/12/11

3D photoelectric torque sensor the layout of multi-measurement units mismatch of stiffness among the dimensions

The research on adaptive measurement of angular acceleration for photoelectric servo turntable (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China
作者: Guo J.; Chen J.; Guo J.

收藏 | 浏览/下载：21/0 | 提交时间：2013/03/25

The paper proposes a new measurement method of angular acceleration for photoelectric servo turntable. Piezoelectric angular acceleration sensor is used to measure angular acceleration directly Adaptive FIR filter based on LMS algorithm is established on DSP by which angular acceleration signal can be filtered and corrected errors adaptively then angular acceleration signals can be measured adaptively. This method avoids measurement errors and calculation noise by computing angular acceleration indirectly thus improving measurement precision and making measurement results better than traditional methods. The gotten angular acceleration can be sent to servo control mechanism as feed forward control signals to improve control effects of servo turntable significantly. 2011 IEEE.

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.

Phase error estimation with broadband white light by Phase Diversity (EI CONFERENCE) 会议论文 OAI收割
6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China
作者:

收藏 | 浏览/下载：19/0 | 提交时间：2013/03/25

The technique of Phase Diversity (PD) is widely adopted to measure the wavefront error caused by atmosphere turbulence and system error. PD solves the Zernike coefficients of the wavefront by utilizing two images obtained with different defocus value. In this paper we propose a method to restore the image and estimate the wavefront error of an imaging system. And we use present white noises to verify the robustness of the algorithm. We design an experiment system and implement it in our laboratory. The proposed algorithm is validated by computer simulations and experimental results. To use a broadband white object in experimental system a reasonable simplification for the system model is done. Our results show that the robustness against Gaussian white noises of the method is better then the case when the variance value is 0.03. The proposed method can be used as a wavefront sensor and restore the degradative images by photoelectric image system. 2010 SPIE.