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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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lcddisplay
LCD显示,只要运行程序可以显示图案，日期和温度(lcddisplay，if you execute that it can display picture,date and tempreture.)
- 2009-10-25 20:40:42下载
- 积分：1
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STM32ser
基于STM32的双串口通信程序，能实现两个串口的收发，程序默认采用串口2接收数据，串口1发送(Based on the STM32 dual serial communication procedures, can achieve two serial transceivers, the program defaults to the serial port 2 receives the data, send the serial port 1)
- 2021-04-28 14:58:43下载
- 积分：1
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tina-
此文件夹有高通滤波，低通滤波，带通滤波，带阻滤波，三角信号发生器，正弦信号发生器，三角波发生器，三角波转换成余弦，等等tina的源程序，适合广大爱好者！(This folder has a high pass filter, low pass filter, band-pass filtering, band stop filtering, triangular signal generator, sine wave generator, triangle wave generator, triangle wave into a cosine, so tina source for the majority of fans !)
- 2011-07-12 17:38:58下载
- 积分：1
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VSP100-old
用Visual C++ 6.0实现的一个VSP程序。包你看后受益匪浅。(with Visual C 6.0 of a VSP procedures. After looking at the package you benefited.)
- 2007-02-06 09:08:57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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HUST
华中科大第八届的程序 拿了赛区的二等奖 关于飞思卡尔智能车电磁组(sensor group)
- 2014-01-17 13:00:55下载
- 积分：1
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ADC0809
模数转换器AD0809例程，通过该例程可掌握AD0809的基本使用方法(AD0809 ADC routines, the routines can be mastered through the basics of using the AD0809)
- 2013-09-04 15:35:26下载
- 积分：1
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MazeofCarver1
智能巡检黑线小车的上位机程序源码。stm32开发板用的。(Intelligent patrol car black line the upper computer program source. stm32 development board.)
- 2012-12-17 11:30:18下载
- 积分：1
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p180
这是用c语言写的利用扬声器放歌的程序,可以编译一下就可使用(useful)
- 2009-12-31 19:21:10下载
- 积分：1
