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Research on the response model of microbolometer

Chinese Physics B 2010年第10期19卷 642-651页

作者：隋修宝陈钱顾国华刘宁 School of Electronic Engineering and Optoelectronic Technology Nanjing University of Science and Technology

There are certain limitations in the application of uncooled focal plane array （FPA） detector due to the lack of an effective response model which reliably transforms the target temperature to analog output voltage. This paper establishes the response model of microbolometer through researching the detection theory of microbolometer and the heat balance equation under the condition of the pulsed voltage bias. In the establishing process, we simplified the heat balance equation to acquire a simple answer. The experimental data show that, in the temperature dynamic range of 30 K, the biggest tolerance between the model data and the experiment data is 0.2 K; while in the temperature dynamic range of 100 K, it is 1 K. This model can reflect the real response of the microbolometer with only small differences which are acceptable in engineering applications.

关键词： microbolometer detection theory response model capacitive transimpedance amplifier

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Calibration of the simulation parameters of the particulate materials in film mixed materials

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International Journal of Agricultural and Biological Engineering 2020年第4期13卷 29-36页

作者： Rongqing Liang Xuegeng Chen Peng Jiang Bingcheng Zhang Hewei Meng Xiangbin Peng Za Kan College of Mechanical Electrical Engineering Shihezi UniversityShiheziXinjiang 832000China Key Laboratory of Northwest Agricultural equipment Ministry of Agriculture and Rural AffairsShiheziXinjiang 832000China

In order to obtain accurate contact parameters of a particulate material in residual film mixture collected by cotton field machine in Xinjiang,the angle of repose test and inclined plane test were carried *** the tests,the angles of repose of the particulate material with the water content of(6.26±1.5)%and(14.1±2.1)%were measured respectively,as well as the static sliding friction angle between the particulate material and the residual *** the same time,the EDEM software was used to calibrate the coefficient of restitution,static friction coefficient and dynamic friction coefficient between the material and the ***,the second-order response model between contact parameters and the angle of repose and static sliding friction angle was *** addition,the optimal contact parameters between the granular materials and the mulch were obtained by fitting the physical test *** results indicated that the errors between the physical test results and the numerical simulation results are *** was proved that the second-order response model could predict the repose angle of granular materials and the static sliding friction angle between granular materials and farmland *** study could provide theoretical support for the subsequent model construction of the residual film mixture collected by the cotton field machine.

关键词： cotton field agricultural film particulate material EDEM contact parameter response model calibration

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Podded Propulsion Unmanned Surface Vehicle model Identification Based on Field Experiments

Podded Propulsion Unmanned Surface Vehicle Model Identificat...

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第36届中国控制会议

作者： Dongdong Mu Guofeng Wang Yunsheng Fan Yiming Bai School of Information Science and Technology Dalian Maritime University

ISBN: (纸本)9781538629185

model is the basis of the control,and in order to achieve the autonomous navigation of podded propulsion unmanned surface vehicle,its model is determined to be the beginning of all the *** research object of this paper is Dalian Maritime University "Lanxin" podded propulsion unmanned surface *** practical engineering applications,the response model is often used to design ship *** first of all,for "Lanxin" unmanned surface vehicle,the MMG model of three DOF is simplified as a response model by force analysis and conditional ***,the field experiments（turning experiment and zig-zag experiment） are executed to collect the experimental *** turning experiment data and zig-zag experiment data are used to identify the response model parameters by recursive least square method,*** the correctness of the identification results are verified by *** results show that the identification result of zig-zag experiment data is more close to the reality than the identification result of turning experiment data,which it proves the correctness of modeling and the feasibility of identification scheme.

关键词： Unmanned surface vehicle POD response model field experiments recursive least squares

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APPROACH TO KARST SOLUTION PROCESS responseS ON CLIMATE

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Journal of Geographical Sciences 1997年第3期7卷 58-63页

作者： Lin Junshu Li Juzhang Fang Jinfu Institute of Geography, CAS, Beijing 100101 People’s Republic of China

Based upon the studies of solutional rates with environment from South China to North China over a range of about 30 。 latitude, this paper discusses some of the consequence with equations. The response model shows that the precipitation is the most important factor influencing the rate of solutional denudation except the lithology, the relief etc., but it is an integrational action on the solution process; at the same time, temperature acts as a threshold in bringing the precipitation into play. These suggest that firstly, the solutional denudation process is a comprehensive response to the multiple factors; secondly, karst solution is a complex response process to the climate, and as an integrated exogenic process under the bioclimate.

关键词： karst solution response model bioclimate response process.

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