基于单片机C8051F350的温度测量系统设计

以铂电阻PT1000为温度传感器,以C8051F350单片机为控制核心,设计了一种高精度温度测量系统,测量结果以数字方式显示.     

GM制冷机中温度测试系统的设计实现

利用铑铁电阻和温差热电偶做测温元件,LABVIEW和C8051F350单片机做温度显示界面和数据采集．开发了一种用于GM制冷机环境的低温测试系统。该系统可进行8路信号采集,实现制冷机二级冷头和其内部样品温度的实时监测。     

基于RS485与C8051F350芯片实现远程高精度温度测量

本文介绍了如何采用C8051F350芯片基于RS485串行总线接口实现远程高精度温度测量,并采用多项式曲线拟和结合补偿误差查表插值的方法完成了铂电阻阻值-温度转换的数据处理.系统简单可靠,精度高.并易于远程组网测量.具有很大的实用性.     

基于RS485与C8051F350芯片实现远程高精度温度测量

本文介绍了如何采用C8051F350芯片基于RS485串行总线接口实现远程高精度温度测量，并采用多项式曲线拟和结合补偿误差查表插值的方法完成了铂电阻阻值-温度转换的数据处理。系统简单可靠，精度高，并易于远程组网测量，具有很大的实用性。     

基于C8051F的CMOS-LED器件参数测试仪

以C8051F060单片机为核心设计了CMOS-LED器件参数测试仪,分析了测试仪硬件系统的总体结构、逻辑功能测试电路、电参数测量电路和测量接口电路的硬件实现,给出了单片机程序的设计思路.     

基于C8051F020单片机的数据采集与串口通讯的应用

本文介绍了利用高性能C8051F020单片机设计的一个数据采集系统,该系统直接利用C8051F020已经封装的一个12位的100ksps的逐次逼近型ADC进行数据采集,将采集到的数据经UART0口与微机连接实现了数据的实时采集。     

基于C8051F350的高精度低成本电子秤

文章着重介绍了基于高集成度的单片机C8051F350的电子秤硬件设计和软件设计方案,并给出测试结果。实验证明该设计方案在日常条件下具有高性能,低成本,印刷电路板面积小的优点。     

应用双能X射线测量的骨密度仪

以高速高性能单片机C8051F020为测量控制核心,采用VC++对高、低两种能量的数据进行分析,设计并实现了应用双能X射线进行测量的骨密度仪,改善了单光子骨密度仪定位困难,测量精度差的缺点.该双能X射线骨密度仪的测量数据显示,其设计已基本达到医用测量标准.     

基于C8051F350的手持金属检测器硬件电路设计

本文提出一种基于C8051F350的金属检测系统,其特点是cPu内部集成244位AD转换器,提高了系统的检测精度,降低了电路的复杂度,提高了系统的稳定性,具有检测灵敏度动态可调等特点,可应用于机场、火车站、以及大型活动中用于检测金属物体的场合。     

基于DS1820的多点温度测量电路设计

阐述了DS1820的特点、工作原理及内部电路结构,设计了采用C8051F220单片机进行数据处理,应用DS1820温度传感器的多点温度测量电路.     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

团图为数的图中的闭团贯数

Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.