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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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key
西南交通大学图形学实验的第二个,响应键盘的系统键和非系统键(Second, the system in response to keyboard keys and key non-system experiments Southwest Jiaotong University Graphics)
- 2014-04-21 21:23:13下载
- 积分:1
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14-chuankoutongxin
51单片机的串口通信程序,来自于开发板,VC环境下编写。(51 the Serial communication program, and from the development board, VC environment prepared.)
- 2010-06-27 13:45:06下载
- 积分:1
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123
Crome ShortCut lollol
- 2015-05-19 23:15:49下载
- 积分:1
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wireless
无线传能控制程序,主级,能够实现无线充电,但是需要硬件的配合。(Wireless energy transfer control program, the main stage, enabling wireless charging, but requires the hardware support.)
- 2015-07-05 21:10:22下载
- 积分:1
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ses
有限差分波动方程不加边界条件二阶正演时间切片程序。(Finite difference wave equation without boundary conditions of second-order forward time-slicing procedure.)
- 2009-12-11 16:54:20下载
- 积分:1
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Touch
四线电阻触摸屏+ADS7843
包括液晶的和触摸屏的程序
液晶屏的控制器是LC7981,兼容HD61830(Four-wire resistive touch screen+ ADS7843
Procedures including LCD and touch screen
LCD controller LC7981 compatible with HD61830
)
- 2012-04-07 04:33:22下载
- 积分:1
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TreeOperation
tree operation made by using c++
- 2015-11-20 15:13:00下载
- 积分:1
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I2C
iic接口的程序,可以用于f149单片机(iic interface procedures can be used F149 microcontroller)
- 2013-05-21 09:14:51下载
- 积分:1
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res
1664LED红外控制的定时器,可以通过遥控器远程控制时间的加减、暂停等功能。包括红外解码、红外码值处理(1664LED control program,which can be controled by both IR and keys。)
- 2014-06-17 05:29:26下载
- 积分:1