Application of iMEMS on Airplane model Pose Testing System

随着微机电技术的发展，微型惯性传感器在测量工作上已经显现出其优异的性能，微加速度计和微机械陀螺仪在惯性测量组合中具有极其重要的作用，通过微加速度计和微机械陀螺仪的惯性组合系统可以得到载体的各自由度姿态信息，开展对微惯性传感器的研究具有十分重要的意义。本文针对以微加速度计ADXL320和微机械陀螺仪ADXRS150为核心组合的惯性测量系统在飞行器模型姿态测量上的应用进行了研究，探讨该微惯性元件组合的特性和信号。本文的工作主要包括以下几个方面：一、利用微加速度计ADXL320和微陀螺仪ADXRS150组合建立一个小型惯性飞机模型姿态测量系统，通过为微传感器设计合理的输出信号匹配电路，确保其输出信号...With the development of MEMS (Micro-Electrical Mechanical System), iMEMS (inertial Micro electro mechanical sensor) has gradually showed its excellent performance. The Micro-accelerometer and Micro-gyroscope plays a very important part in the MIMU (Micro-Inertial Measurement Unit). By Micro-accelerometer and Micro -gyroscope, the pose information of the carrier can be obtained. So it is of great s...学位：工学硕士院系专业：物理与机电工程学院机电工程系_测试计量技术及仪器学号：20042904

Calibrating Testing and Data Processing of MEMS Rate Gyro

分析了以微电子机械MEMS技术制成的单片偏航角速率陀螺仪ADXRS150的匹配电路原理与工作原理,阐述了角速率陀螺仪的设计要点,设计并搭建了其标定实验平台,对其进行标定实验,通过对标定实验所得的数据进行处理和分析,得到标定曲线和误差分析关系式,从而给出在陀螺仪标定实验可行的数据处理方法。The matching circuit and the principle of the single chip rate gyro,ADXRS150,based on integrated micro electro-mechanical system have been introduced and analyzed.The keystone in design of the rate gyro was explained.The rotational stand for the test to the gyro was built and the calibrating has been carried out.The experimental data recorded by compute has been processed through analyzing.The relationship between the angular rateω and the output voltage V of the gyro is obtained.The error analysis for calibrating test data is presented.The result shows the method of the calibrating test and the data processing on the gyro is available.国家自然科学基金项目(50475099

Performance Calibrating on MEMS Accelerometer ADXL320

本文以美国ADI公司生产的±5g双轴模拟输出加速度计ADXL320为例,介绍了MEMS微加速度计的工作原理及其输出系数标定试验,并对其试验结果进行了数据处理和分析。ADXL320 is a small, high precision, complete dual-axis accelerometer with signal conditioned voltage output, which can measures acceleration with a full-scale range of ±5g .The principle of the MEMS accelerometor and output coefficient calibrating testing on it are presented in this paper.国家自然科学基金项目(50475099

Morphology of Dorsolateral Fold in Ranids (Amphibia, Anura, Ranidae)

背侧褶是无尾两栖类的重要形态特征,但对于其组织结构和功能缺乏了解.本文运用组织学技术,H.E、AB-PAS和Masson三色三种染色方法对蛙科4属的代表物种滇蛙(Dianrana pleuraden)、阔褶蛙(Sylvirana latouchii)、仙琴蛙(Nidirana daunchina)、沼蛙(Boulengerana guentheri)背侧褶和背部皮肤的显微结构进行了系统的比较研究.结果发现:1)蛙科物种的皮肤腺体单元丰富多样,由黏液腺和颗粒腺组成.其黏液腺均为普通黏液腺,按照其分泌物及分泌细胞形态将黏液腺分为Ⅰ型黏液腺和Ⅱ型黏液腺.Ⅰ型黏液腺在沼蛙和仙琴蛙中缺失,Ⅱ型普遍分布.颗粒腺分Ⅰ型颗粒腺、Ⅱ型颗粒腺及特化颗粒腺,Ⅱ型颗粒腺仅见于仙琴蛙,特化颗粒腺仅见于阔褶蛙和沼蛙的背侧褶;2)滇蛙与仙琴蛙背侧褶基本结构与其背部常规皮肤一致,且两种皮肤结构组成也较为相似,在真皮层下都有一层较厚的脂肪层,滇蛙脂肪层厚度约为真皮层厚度的1.52倍,仙琴蛙脂肪层厚度约为真皮层的1.60倍;阔褶蛙与沼蛙背侧褶基本结构也与其常规皮肤一致,且背侧褶结构组成也较为相似,阔褶蛙及沼蛙真皮层内具有单层排列、集中分布的大型特化颗粒腺,其分泌物为两种颗粒物的混合物.3)蛙科中两种背侧褶结构类型代表了两个进化方向,其功能分别为能量储存和反捕,推测其与环境适应进化相关

Study on the directional reaction of ［Co(NH3)6］2+ with thiourea dioxide((NH2)2CSO2与Co2+-NH3体系定向反应的研究)

研究了温度、酸碱度、Hg(Ⅱ)等因素对(NH2)2CSO2与Co2+-NH3体系定向反应的影响，发现该体系同时存在单电子反应和双电子反应，并相互竞争，(NH2)2CSO2的双电子反应率随着体系温度、pH值增大和Hg(Ⅱ)离子的加入而增高.探讨了反应机理，并对两种反应的变化方向作了机理解释