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main
本项目是基于Cortex-M3 的地沟油快速检测装置，旨在实现“地沟油”快速，现场检测。MCU控制可编程的直接数字频率合成器（DDS）产生正弦激励信号，经过可变增益放大器（VGA）和低通滤波器（LPF）作用于食用油阻抗传感器（实验室制作）信号经过仪器放大器送入微控制器（MCU）的模数转化（ADC）通道，MCU对采集的信号通过快速傅里叶变换（DFT）处理，实现食用油阻抗与相角的检测；USB和以太网接口，可与计算机通讯，以便对采集的数据进行存储和分析。(The project is based on the Cortex-M3 waste oil rapid detection device designed to achieve " waste oil" rapid, on-site testing. MCU control programmable direct digital frequency synthesizer (DDS) generates sinusoidal excitation signal through a variable gain amplifier (VGA) and a low-pass filter (LPF) acting on the oil-impedance sensor (lab produced) to send signals through the instrumentation amplifier into the microcontroller (MCU) modulo conversion (ADC) channels, MCU signal acquisition via Fast Fourier Transform (DFT) processing, oil resistance and phase angle detection USB and Ethernet interfaces, and computer communication, in order to collect data for storage and analysis.)
- 2020-07-01 17:20:01下载
- 积分：1
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Beginners-lcd1602_
lcd1602单片机万年历，不开多得的好资料，你看了肯定不会后悔。(Beginners lcd1602)
- 2011-10-20 08:15:33下载
- 积分：1
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DS1302andDS18B20
DS1302+DS18B20+无线遥控应用程序(DS1302+ DS18B20+ wireless remote control applications)
- 2009-09-04 11:01:54下载
- 积分：1
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WSN-time-synchronization-RBS
无线传感器网络中时间同步算法，RBS算法的仿真源代码(Wireless sensor network time synchronization algorithm, the RBS algorithm simulation source code)
- 2020-06-30 16:00:01下载
- 积分：1
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project
南京罗姆显示器 单片机显示控制软件，显示 频率码和标识信息。(Single chip microcomputer display control software, display frequency code and identification information in Nanjing.)
- 2015-09-10 22:52:37下载
- 积分：1
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DHT90_
温湿度传感器DHT11的C语言驱动程序，珂用于单片机的开发与应用。(Temperature and humidity sensors DHT11 C language driver, Ke for the development and application of SCM.)
- 2011-07-25 09:34:21下载
- 积分：1
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MAX7219_DAC_Serial
AD转换芯片源程序。串行模式通信。。带电路(AD conversion chip source. Serial mode of communication. . Band circuit)
- 2008-12-15 18:08:26下载
- 积分：1
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demo
交流电动机的矢量控制（Transvector Contrl）理论，从理论上解决了交流电动机转矩的高性能控制问题。其基本思想是在普通的三相交流电动机上设法模拟直流电动机转矩控制的规律，在磁场定向坐标上，将电流矢量分解成产生磁通的励磁电流分量 和产生转矩的转矩电流分量 ，并使两分量互相垂直，彼此独立，然后分别进行调节。这样，交流电动机的转矩控制，从原理和特性上就与直流电动机相似了。因此，矢量控制的关键仍是对电流矢量的幅值和空间位置的控制。(AC motor vector control (Transvector Contrl) theory, control theory to solve the problem of high-performance AC motor torque. The basic idea is to try to simulate the DC motor torque control law in the ordinary three-phase AC electric motor in field-oriented coordinates, the current vector decomposed to produce the excitation current component of the magnetic flux generating a torque current component and torque, and two components perpendicular to each other, independently of each other, and then were adjusted. Thus, AC motor torque control, the principle and characteristics of the DC motor on and similar. Therefore, the key vector control is still the amplitude and spatial position of the current vector control.)
- 2016-12-01 08:58:29下载
- 积分：1
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V2[1][1]
载波模块，现成的PCB板。。。。。。。。。(。。。。。。。。。。。。。。。。。。。。。。)
- 2010-01-21 20:35:15下载
- 积分：1
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dljs
改程序适应于电力系统短路电流计算，生成节点导纳矩阵和阻抗矩阵。(Change program suitable for power system short-circuit current calculation, to generate the node admittance matrix and the impedance matrix.)
- 2014-09-27 21:37:47下载
- 积分：1
