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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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EPLaZPLPrinter_WT
Bebra EPL、ZPL条码打印,可根据模板生成指令,可使用USB打印端口,ReadMe中给出了详细说明
(Bebra EPL ZPL Barcode Printing, can generate command by label template, can use USB port, it s detailed describe in readme.txt.)
- 2014-01-01 08:48:15下载
- 积分:1
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Proteus 8051+LCD+PWM电机调速测速(仿真+源码)
说明: Proteus 8051+LCD+PWM电机调速测速(仿真+源码)(Proteus 8051+LCD+PWM Motor speed measurement (simulation + source))
- 2019-05-28 01:10:50下载
- 积分:1
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0305010411
随着社会发展的不断进步,民航事业的壮大,人们消费水平的提高,乘坐民航的消费着也越来越多。预定查询系统因此在各机票预定网点中的作用也越显重要,因此,开发一套实时机票预定系统更现紧迫。机票预定系统应克服存储乘客信息少,查询效率低下等问题外,更重要的是其安全性,可靠性,这关系到航班和乘客的安全及准确,本系统因面向广大机票预定网点。重点是销售系统中的方便快捷。(with social development progresses, the growth of civil aviation, people raise the level of consumption. CAD ride to the consumer more and more. Scheduled inquiry system in booking tickets for the networks is the role of the more important, therefore, development of a real-time ticket reservation systems are more pressing. Ticket reservation systems storage passengers should overcome the scarcity of information, inquiries inefficient issues, even more important is their safety, reliability, the relationship of flights and passenger safety and accuracy, the system for booking tickets for the large-oriented networks. Focus on the marketing system convenient and quick.)
- 2007-03-21 21:32:56下载
- 积分:1
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hunhebiancheng_123
matlab与CC++混合编程程序,可以参考下,适合初学者(matlab and C C++ mixed programming program, you can refer to, for beginners)
- 2013-07-12 12:27:54下载
- 积分:1
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openGL--3ds-models-of-human-body
基于vc opengl的3ds人体多段肢体模型导入并显示。可实现键盘控制。按键Q,E,A,D,W,S,J,L,K,I,U,O,以及方向键。可实现视角转换和右臂的驱动。(vc6.openGL display and control 3ds models of human body)
- 2013-08-31 16:19:08下载
- 积分:1
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基于傅立叶变换FFT的大规模海面的实现方法
基于傅立叶变换FFT的大规模海面的实现方法(Realization of Large-scale Sea Surface Based on Fourier Transform FFT)
- 2019-02-15 12:53:25下载
- 积分:1
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本源码转载与其它网站
本人看了感觉不错
本源码转载与其它网站
本人看了感觉不错
-This source is reproduced with the other sites I read a good feeling
- 2022-03-05 02:31:57下载
- 积分:1
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手机号码归属地二进制库文件查询+导入
PhoneArea 是C++实现 (vs2005)
CallHelper 是Android APK 实现
- 2022-03-04 16:33:50下载
- 积分:1
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输入一串字符,分别统计出各字符出现的频率。
输入一串字符,分别统计出各字符出现的频率。
- 2022-09-09 09:25:03下载
- 积分:1