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电磁场
关于电磁场电磁波的学习和PPT课件，希望有助于感兴趣同学的学习(Electromagnetic field on the electromagnetic wave of learning and PPT courseware, I hope to help students interested in learning)
- 2017-07-22 13:13:59下载
- 积分：1
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ex5-1
这是一个使用8051制作的数字时钟,使用2个弹跳按钳和4个共阳七段显示器组合而成.(It is a production of the 8051 Digital Clock, use two bouncing by clamp and four monitors in paragraph 107 of a total of Shenyang combination.)
- 2007-01-16 00:10:13下载
- 积分：1
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modbus软件开发实战 ModbusMaster
说明： modbus软件开发实战，适用于各种工业控制(Modbus software development practice, suitable for various industrial control)
- 2020-06-20 05:00:01下载
- 积分：1
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RFID_RC522
基于STM32F1的RFID M1卡的读写程序，RFID芯片是NXP的RC522(Based on STM32F1 RFID M1 card reader program, RFID chip is NXP s RC522)
- 2016-11-16 11:13:44下载
- 积分：1
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xiangpintexin
本作品以MSP430单片机为核心， 基于DDS原理，通过查表方式输出步进量为10HZ，频率为100HZ~2KHZ的正弦波。两路被测信号通过过零比较、异或和低通滤波整流，实现了对相位差的测量，误差小于(This works with MSP430 microcontroller as the core, based on DDS principle, by look-up table output step sizes for the 10HZ, frequency of 100HZ ~ 2KHZ sine wave. Two by the signal zero-crossing comparator, XOR, rectification and low-pass filtering, the realization of the phase of the measurement error is less than)
- 2013-05-23 15:14:22下载
- 积分：1
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zhangjin
锅炉是工业过程中不可缺少的动力设备，为确保安全，稳定生产，对锅炉的自动控制十分重要。汽包水位是锅炉运行的主要指标，汽包水位过高过低都会影响运行的安全与经济性，必须严格加以控制。本文主要是用MATLAB对锅炉汽包水位控制系统进行仿真研究。建立了锅炉汽包水位对象的数学模型和控制系统，并用Matlab语言在计算机上编制锅炉汽包水位控制系统的仿真程序。通过对象特性、最佳PID参数整定、控制系统比较分析，了解了汽包水位对象特性、整定出了最佳PID参数、总结出了各种控制方案的特点与适用场合。 ( Boiler is a necessary power plant in the process of industry. In order to ensure the production and security, the auto-control of it is very important. The drum water level is an important variable to be controlled, it is hard to get the mathematic model of the water level with adjustive process, it is characteristic of nonlinearity, instability and time lag. The traditional control mode of three-variable in the drum water level mostly use PID.The problem of automatic control in industry coal-fired boiler is discussed in this thesis. First of all，the technological process and characteristics of industry boiler is analyzed. The task of boiler regulator is expounded. And then the system scheme of control is presented. The dynamic characteristic of loops for water level is analyzed especially the reason of ostensible water level. On the basis of these a routine PID controller is designed to control the water level. The part of differential is sensitive to high frequency noise, and easi)
- 2020-11-24 20:39:34下载
- 积分：1
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HY64
飞思卡尔HY64单片机模块初始化和应用程序。(Freescale HY64 microcontroller module initialization and applications.)
- 2013-09-25 10:30:43下载
- 积分：1
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C8051F2xx
C8051F2xx的大量源程序示例代码，包括汇编和C的代码(C8051F2xx sample a large number of source code, including the compilation and C code)
- 2007-08-10 11:09:11下载
- 积分：1
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Multisim
Multisim的应用说明、元件库说明以及自建元件的方法说明(Multisim application notes, library, notes, and a description of self-built components)
- 2010-07-24 15:57:28下载
- 积分：1
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51DS1302+DS18B20
说明： 51单片机驱动DS1302时间模块+DS18B20温度传感器模块+12864液晶显示完整程序设计(51 Single-chip driver DS1302 time module+ DS18B20 temperature sensor module+ 12864 LCD complete program design)
- 2008-11-30 02:40:10下载
- 积分：1
