检索结果-南通市图书馆

High Sensitivity FBG pressure sensor Based on Mechanical Amplifier and Interrogation Using Tunable FBG Filter

在线全文

学校读者我要写书评

暂无评论

Semiconductor Photonics and Technology 1999年第3期5卷 171-174,178页

作者： LIUYun－qi LIUZhi－guo 等 InstituteofModernOptics NankaiUniversityTianjin300071CHN InstituteofModernOptics NankaiUniversityT

A high sensitivity fiber Bragg grating pressure sensor by using mechanical amplifier is demonstrated. The measured pressure sensitivity is -1.80×10 -4 /MPa, which is about two orders of magnitude better than a simple monomode fiber with an in-fiber grating. The resolution of pressure measurement is 0.015 MPa based on interrogation using tunable fiber grating filter.

关键词： Fiber Bragg Grating Mechanical Amplifier pressure sensor Tunable Filter CLC number:TN253 TP212 Document code:A

Networking Intelligent pressure sensor Using Digital Lock-in Amplification Technology

在线全文

学校读者我要写书评

暂无评论

Journal of Measurement Science and Instrumentation 2011年第1期2卷 38-41页

作者：陶安利郑娟娟王力涵历运周 College of Information and Electrical Engineering Shandong University of Science and Technology

Introducing a System-on-Chip （SoC） microcontroller （C8051F350） into a ceramic pressure sensor has resulted in the design of a intelligent sensor. An improved algorithm for digital phassensitive detection is used to perform lock-in amplification of the sensor signal. The compensation for the sensor error is realized by the detection of the sensor＇s supply voltage and working temperature. The system also has the function of short/open circuit fault detection and can ommamicate with other digital equipment through an RS-485 communication interface. In the design, full utilization of the SoC microcontroller＇ s internal resource results in the simple hardware structure. Experimental results show that the error of the sensor is less than 0.5% at range ratio 1 ： 10. Employing the microcontroller and using lock-in amplification algorithm are an effective method for achieving an intelligent sensor of slowly-varying physical quantities, thereby improving the measuring accuracy and performance.

关键词： sensor networks pressure sensor intelligent design lock-in amplifier

Design of C8051F350-based Intelligent pressure sensor

在线全文

学校读者我要写书评

暂无评论

Journal of Measurement Science and Instrumentation 2011年第2期2卷 157-160页

作者：韩丽娜陶安利李绍刚柳军国厉运周李相众 School of Information Science and Engineering Shandong University of Science and Technology

In order to overcome the deficiencies of traditional pressure sensors, a kind of intelligent pressure sensors with temperature correction is designed. Qccording to the intelligent sensor system of composition and range of applications, with fully taking into account the parameters of the connection between of co-ordination, we chose a good usability, high reliability and low cost components composed of the entire measurement system, with controlling and dealing with in 80C51 miller, the system had the temperature and pressure parameters with automatic measurement, amplification, A/D conversion, the weak signal locked amplification, as well as PhaseSensitive Detection （PSD）, common-mode signal rejection, the collected signal de-noising processing, cross-sensitivity of the decoupling and show the results. It also has a self-test, automatic temperature condition and on, site communications and other functions.

关键词： pressure sensor Lock-in Amplifier 80C51F350 SCM hardware circuitry

Speed Estimation for Robotic Fish Based on pressure sensor

在线全文

学校读者我要写书评

暂无评论

Speed Estimation for Robotic Fish Based on Pressure Sensor

第26届中国控制与决策会议

作者： Qixin Zhu Kun Zhong Guangming Xie School of Mechanical Engineering Suzhou University of Science and Technology School of Electrical and Electronic Engineering East China Jiaotong University College of Engineering Peking University

Based on pressure sensor, a speed estimation method for robotic fish is presented in this paper. Based on property of pressure sensor, the relation model between pressure and speed is fitted by experimental analysis. Using this relation model, the swimming speed of robotic fish can be calculated by pressure. A validation experiment was conducted with a freely swimming robot. The experiment results demonstrated the feasibility and accuracy of this measure method, which providing a new way to measure the swimming speed of robotic fish.

关键词： pressure sensor Lateral Line System Robotic Fish Speed Estimation

A Wireless pressure sensor Based on Surface Transverse Waves

在线全文

cnki会议

学校读者我要写书评

暂无评论

A Wireless Pressure Sensor Based on Surface Transverse Waves

2011年全国压电和声波理论及器件应用研讨会

作者： A-Long KANG~1 Wei-Biao WANG~2 You-Qun LIU~1 Tao HAN~(1,*) 1 Shanghai Jiaotong University,Shanghai,200240 2 No.55 Institute of China Electronics Technology Group Corporation,Nanjing,210038

＜正＞Surface acoustic wave（SAW） pressure sensors can be passive（no power required）,wireless and well suited for applications in moving *** sensing element is usually composed of a clamped circular quartz membrane... 详细信息

关键词： Surface transverse wave pressure sensor Wireless

OPTIMAL CUT OF QUARTZ FOR A SURFACE ACOUSTIC WAVE pressure sensor WITH NON-UNIFORM pressure LOAD

在线全文

cnki会议

学校读者我要写书评

暂无评论

OPTIMAL CUT OF QUARTZ FOR A SURFACE ACOUSTIC WAVE PRESSURE S...

2013全国压电和声波理论及器件技术研讨会

作者： Yi-yu ZHAO Hong-lang LI Shi-tang HE Laboratory of Acoustical Micro-Electric Mechanics System Institute of AcousticsChinese Academy of Sciences

This paper aimed to study the pressure sensitive coefficients of different cuts of quartz for the surface acoustic wave(SAW)pressure sensors with non-uniform pressure load,and tried to find the most sensitive *** finite element analysis/perturbation theory combines model was constructed to calculate the pressure sensitive *** analysis of different cut angles(0,θ,φ)of quartz withφ(080°),6(-90-90°),the optimal cuts angle of quartz(0°,4.5°,64.7°)was found.

关键词： surface acoustic wave pressure sensor quartz pressure sensitive coefficients non-uniform pressure load

Dynamic compensation and its application of shock wave pressure sensor

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of Measurement Science and Instrumentation 2016年第1期7卷 48-53页

作者：夏永乐翟永中北大学电子测试技术重点实验室山西太原030051

In order to correct the test error caused by the dynamic characteristics of pressure sensor and avoid the influence of the error of sensor＇s dynamic model on compensation results,a dynamic compensation method of the pressure sensor is presented,which is based on quantum-behaved particle swarm optimization（QPSO）algorithm and the mean square error（MSE）.By using this method,the inverse model of the sensor is built and optimized and then the coefficients of the optimal compensator are *** method is verified by the dynamic calibration with shock tube and the dynamic characteristics of the sensor before and after compensation are analyzed in time domain and frequency *** results show that the working bandwidth of the sensor is extended *** method can reduce dynamic measuring error and improve test accuracy in actual measurement experiments.

关键词： pressure sensor dynamic compensation quantum-behaved particle swarm optimization(QPSO) shock wave test band expansion

Design of the Soft pressure sensor Based on Liquid Metal

在线全文

学校读者我要写书评

暂无评论

Design of the Soft Pressure Sensor Based on Liquid Metal

第40届中国控制会议

作者： Li Li Siqi Yu Haixiao Liu Wenqian Tian Wei Sun School of Mechatronic Engineering and Automation Shanghai University

In this paper,a resistance type soft pressure sensor is designed by using silicon rubber and gallium-indium-tin *** sensor has the advantages of simple structure and convenient production,which can be used for force sensing in wearable devices and the hands of flexible ***,the fabrication process of the sensor is presented and a new structure of force amplification layer added to the original sensor structure is *** simulation results show that adding the amplifying layer structure makes the deformation of the microchannel more obvious and can be better ***,the function of the designed sensor is verified by simple experiment.

关键词： liquid metal soft pressure sensor amplifying layer

Absolute pressure sensor Based on Standard CMOS Process

在线全文

cnki会议

学校读者我要写书评

暂无评论

Absolute Pressure Sensor Based on Standard CMOS Process

The 2012 International Conference on Advanced Material and Manufacturing Science(ICAMMS 2012)

作者： Ting Yu Benxian Peng Fengqi Yu Department of Integrated electronics Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences The Chinese University of Hongkong

A CMOS compatible absolute pressure sensor with extend floating gate is developed with simple circuitry to realize high sensitivity,linearity,and manufacturabilityThe pressure sensitive membrane formation is based on the standard CMOS process with simple metal sacrificial layer removal step,which is very cost-efficient and fully CMOS compatible,enabling monohthic integration of circuitryANSYS and SPICE simulation results show that the proposed sensor can worked properly under 500 K Pa,and the square sensing membrane of 100×100 μm shows a good linearity over a pressure change ranging from 5 Pa to 500 K Pa

关键词： pressure sensor CMOS Process