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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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daima
定义一个Circle类,有数据成员Radius(半径),成员函数GetArea(),计算圆的面积,构造一个Circle的对象进行测试。(caculation the area of a circle)
- 2014-06-23 16:41:08下载
- 积分:1
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JN-AN-1229
zigbee document upload 23/7/2019
- 2020-06-21 18:00:02下载
- 积分:1
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triangle
由单片机和DAC0832产生正弦波或三角波的程序。单片机和DAC0832可将频率进行分频的具体程序(Sine or triangle wave and DAC0832 procedures generated by the microcontroller. SCM and DAC0832 can divide the frequency of specific procedures)
- 2014-01-11 15:53:32下载
- 积分:1
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Ad_da-transformation
ad_da 数电——模电 转换,单片机应用子程序(ad_da transformation)
- 2012-12-19 11:10:05下载
- 积分:1
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chuanxing-da
串行da模块的应用,和单片机通信,通过单片机控制da模块(Serial da module application, and single-chip communication, via da MCU control module)
- 2013-07-18 02:57:14下载
- 积分:1
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audio-capture-raw-_console
利用kinect获取原始的音频波形,得到四声道的pcm波形。(Use kinect to get the original audio waveform, get pcm waveform four channels.)
- 2021-01-29 14:18:35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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VoiceInterpretationSystem
说明: 系统工作电源AC220V
根据室内光线调节遥控灵敏度。
主控室电脑负责接收由控制终端传来的遥控信号播放相应多媒体影音文件;
通过主控电脑也可直接点播各展品文件,同时控制打开对应的展品照明;
遥控终端接收激光棒控制信号,控制开灯照明正在解说的展品,并通过通信总线通知主机播放相应文件;
通信中继器负责全部终端与主机间的双向信号传递;
扩展功能:设计上位机播放操作软件,控制照明灯亮度。
(无)
- 2010-04-03 20:24:07下载
- 积分:1
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kaven2
功能非常强大的计算器,单片机飞思卡尔LCD屏幕显示,可以完成加减乘除还有括号运算(Very powerful calculator microcontroller Freescale LCD screen display, the completion of the addition, subtraction there brackets operator)
- 2012-12-26 22:41:35下载
- 积分:1