水下无人航行器主动目标自动检测方法研究任宇飞
Research on Automatic Target Detection Method of Underwater Unmanned Vehicle (2021-04-13, PDF, 316KB, 下载0次)
git server install guide
git server install guide (2021-02-22, PDF, 675KB, 下载0次)
核心处理器：8051
核心尺寸：8-位
速度：50MHz
连接性：SMBus（2 线/I2C），SPI，UART/USART
外设：POR，PWM，温度传感器，WDT
I/O 数：17
程序存储容量：8KB（8K x 8）
程序存储器类型：闪存
RAM 容量：768 x 8
电压 - 电源（Vcc/Vdd）：2.7 V ~ 3.6 V
数据转换器：A/D 8x24b；D/A 2x8b
振荡器类型：内部
工作温度：-40°C ~ 85°C（TA）
封装/外壳：32-LQFP
供应商器件封装：32-LQFP（7x7）
C8051F350-GQR_2013-09-29.PDF (2020-11-05, PDF, 1464KB, 下载0次)
测金属距离的传感器，可用于清分机测厚。分辨率还可以。
The sensor for measuring metal distance can be used for thickness measurement of sorter (2020-10-24, PDF, 966KB, 下载1次)
The aim of this project was to determine whether new direct digital synthesis
(DDS) technology can be used as the base for low cost, high performance linear
FM-CW radar systems.
The system should be analysed mathematically, and simulated. Suitable
components should be researched and the antennas will need to be designed.
The system should be designed and built to be used as a radar demonstration
in undergraduate courses.
The system specifications are: range resolution of 1 m, with a maximum
range 1000 m, with pedestrians as the target. It is to be operated from a laptop
computer. An analog to digital converter (ADC) will therefore be required to
capture the data. An FFT is then to be used to calculate the range to the
target [4].
A second system should also be built to determine the suitability of the
system to GPR [5]. This system will use as many common components from
the first system as possible.
The aim of this project was to determine whether new direct digital synthesis
(DDS) technology can be used as the base for low cost, high performance linear
FM-CW radar systems.
The system should be analysed mathematically, and simulated. Suitable
components should be researched and the antennas will need to be designed.
The system should be designed and built to be used as a radar demonstration
in undergraduate courses.
The system specifications are: range resolution of 1 m, with a maximum
range 1000 m, with pedestrians as the target. It is to be operated from a laptop
computer. An analog to digital converter (ADC) will therefore be required to
capture the data. An FFT is then to be used to calculate the range to the
target [4].
A second system should also be built to determine the suitability of the
system to GPR [5]. This system will use as many common components from
the first system as possible. (2020-07-05, PDF, 2042KB, 下载0次)
大型电力变压器短路情况下绕组所受电动力中文论文, 供学习参考
POWER TRANSFORMER, WINDING DYNAMIC FORCE (2020-04-16, PDF, 9352KB, 下载1次)
大型电力变压器短路情况下绕组所受电动力论文, 供电气专业学习参考
POWER TRANSFORMER, SHORT CIRCUIT, WINDING, DYNAMIC FORCE (2020-04-16, PDF, 714KB, 下载0次)
大型电力变压器短路情况下绕组所受电动力论文, 供学习参考
POWER TRANSFORMER, SHORT CIRCUIT, WINDING (2020-04-16, PDF, 946KB, 下载0次)
PI调节器的参数调整一直是一大难题，本文件提供了PI调节的方法
The parameter adjustment of PI regulator is always a difficult problem. This paper provides the method of PI regulation (2018-12-05, PDF, 17410KB, 下载8次)
3-8 译码器 ---D 74HC138 中文说明。方便使用。
3-8 decoder ---D 74HC138 Chinese description. It is easy to use. (2018-07-07, PDF, 482KB, 下载2次)
该文档研究了开关功率器件的驱动变压器设计，文中讲解的十分透彻
This document studies the design of drive transformer for switching power devices, which is very thorough. (2018-04-18, PDF, 195KB, 下载4次)
IAI系列电动执行器，驱动器操作说明书及操作手册
IAI series electric actuators, driver operation instructions (2018-01-24, PDF, 112KB, 下载4次)
Adobe Acrobat 激活器 amtemu.v0.9.2.win-painter
Adobe Acrobat Activator amtemu.v0.9.2.win-painter (2017-11-15, PDF, 1848KB, 下载2次)
基于联邦滤波器的新型故障检测结构及算法，一种新型Kalman算法。
A new structure and algorithm of fault detection based on federated filter, a new Kalman algorithm. (2017-10-12, PDF, 321KB, 下载12次)
对联邦滤波器理论研究，一文的商榷，对初学者很有帮助。
Federal filter theory research, a text of the discussion, very helpful for beginners. (2017-10-12, PDF, 107KB, 下载3次)
DHT11数字湿温度传感器的原理和应用范例.
Principle and application example of DHT11 digital humidity temperature sensor. (2017-06-12, PDF, 305KB, 下载1次)
美国的xenus系列驱动器，双轴伺服放大器
U.S. xenus series drive, dual-axis servo amplifier (2010-05-28, PDF, 1695KB, 下载6次)
传感器优化布置是结构健康监测研究的重要内容，传感器数量和位置的选择直接关系到模态参数识别的效果及模型修正的结果等。为了达到布置在结构上的有限传感器能够测量并得到用于模态参数识别的最佳信息的目标，提出了基于数据融合的传感器优化布置方法。该方法以距离测度作为数据融合的融合度，首先通过对距离测度矩阵、支持度矩阵的计算，得到待选测点的综合支持度；其次，根据待选测点的综合支持度大小来确定传感器优化布置的位置；最后，以网架结构的传感器优化布置为例，运用峰值法进行自振频率识别，通过已选测点与未选测点识别效果的对比，验证了该方法的有效性
no content (2010-02-06, PDF, 326KB, 下载76次)
《什么是微处理器？》主要是讲述机器人控制器BASIC STAMP 2的书本
What is microprocessor? The main thing is about the robot controller BASIC STAMP 2 books (2008-12-10, PDF, 3998KB, 下载1次)
提出了一类高动态性能切换模糊PID控制器设计方法。通过对传统PID控制中比例控制和微分控制作用的分析,结合模糊PID控制器鲁棒性能和自适应性好的优点,设计了一类新的模糊控制器。由于该类控制器先后经历比例控制,微分控制和模糊PID控制的切换,使被控系统不仅具有一般模糊PID控制器的所具有的良好的鲁棒性能和自适应性,而且与一般模糊控制器相比具有更小的超调量和调节时间,是一类动态性能良好的控制器。最后将该控制器应用于一伺服系统进行仿真对比,并给出了Simulink仿真框图。仿真结果说明了该控制器的优越性。 (2008-07-15, PDF, 775KB, 下载146次)
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