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201204_SYJTTESWD
高精度的石英晶体测温:
通常,我们都在使用如热电偶,热电阻,热敏电阻,半导体或集成电路传感器....来测量温度,实际上,如果利用晶体来做温度传感器,其精度就会大幅度提高!
石英晶体的振荡频率会随温度的变化而发生微小的变化,利用这一特性,通过测量石英晶体振荡器的频率,就可司接测得相应的温度值,所以石英晶体谐振器还可用来进行温度的测量。测温石英晶体谐振器就属于这一类产品,它采用玻璃外壳封装软弓线电极,分辨率可达0.01℃-0·0001℃,适合作测温敏感元件。
这里给出的一份文件,摘录有从网络或书籍的有关晶体测温的基本介绍,供朋友们参考!同时,感谢有关网站与原书籍作者的宝贵资料! ------ 期望这种方法可以普及和更广泛的获得实际应用!
(High-precision quartz crystal thermometry:
Usually, we use such as Thermocouple, RTD, thermistor, semiconductor or integrated circuit sensor .... to measure the temperature, in fact, if you use the crystal to do the temperature sensor, its accuracy will be greatly improved!
Quartz crystal oscillator frequency variation with temperature and small changes, the use of this feature, by measuring the frequency of the quartz crystal oscillator, can the Secretary then measured the corresponding temperature value, so the quartz crystal resonator can also be used to the measurement of the temperature. The measured temperature quartz crystal resonator belongs to this type of product, which uses glass shell package soft arch wire electrode with a resolution of up to 0.01 ℃-0 · 0001 ° C, suitable for temperature sensitive components.
Given here a document, extract a basic introduction to the crystal temperature from the network or books for friends as a reference! The same time,)
- 2012-04-19 23:20:07下载
- 积分:1
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cckeilv802
Keil Software公司推出的uVision3是一款可用于多种8051 MCU的集成开发环境(IDE),该IDE同时也是PK51及其它开发套件的一个重要组件。除增加了源代码、功能导航器、模板编辑以及改进的搜索功能外,uVision3还提供了一个配置向导功能,加速了启动代码和配置文件的生成。此外其内置的仿真器可模拟目标MCU,包括指令集、片上外围设备及外部信号等。uVision3提供逻辑分析器,可监控基于MCU I/O引脚和外设状态变化下的程序变量。
uVision3提供对多种最新的8051类微处理器的支持,包括Analog Devices的ADuC83x和ADuC84x,以及Infineon的XC866等。
Keil C51 V8.05 为最新汉化版,全中文环境,支持PA51中文单片机汇编,可实现全中文编程、动态子程序库调用、自动汉字字模生成、自动图像数据生成等诸多强大功能。
本版本已修正0xFD的BUG,注册后解除2K代码限制和8K编译限制。(Keil C51 V8.05 为最新汉化版,全中文环境,支持PA51中文单片机汇编,可实现全中文编程、动态子程序库调用、自动汉字字模生成、自动图像数据生成等诸多强大功能。
本版本已修正0xFD的BUG,注册后解除2K代码限制和8K编译限制。)
- 2009-07-06 08:36:08下载
- 积分:1
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StarUML_GUIDER
StarUML使用的指导说明,这里面有详细的讲解,是才开始使用StarUML建模工具的一份很好的资料(StarUML instructions for use, and there are detailed explanations, that began to use a modeling tool StarUML good information)
- 2013-07-30 11:52:32下载
- 积分:1
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Mie_scattering_Comsol_35a1
说明: 用多物理场耦合软件comsol multiphysics 3.5a计算远场散射时的详细教程。对需要进行复杂电磁场的散射计算,有极大的帮助!(Coupled with a multi-physics software comsol multiphysics 3.5a far-field scattering calculations detailed tutorial. On the need for complex scattering of electromagnetic field, there is a great help!)
- 2011-03-09 03:29:41下载
- 积分:1
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S7guanliqi
STEP7的安装
3.2 SIMATIC 管理器
3.3 STEP7建立项目
3.4 STEP 7帮助系统
3.5 STEP 7标准库
3.6 STEP7练习
(STEP7 installation 3.2 SIMATIC Manager 3.3 STEP 7, item 3.4 the STEP 7 Help System 3.5 STEP 7 Standard Library 3.6 STEP 7 exercises)
- 2012-06-09 12:28:34下载
- 积分:1
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ad
音频信号分析仪,本人亲测,此程序有用,请大家下来看看(Audio signal analyzer, I pro-test, this program useful, please we look down)
- 2014-02-14 23:09:08下载
- 积分:1
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Navy_Files
之前在开发系统时整理的一些开发文档,分享给大家~(System before finishing in the development of a number of development documents, share with us ~)
- 2011-04-26 09:44:30下载
- 积分:1
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Windows文件系统过滤驱动开发教程
我经常在网上碰到同行请求开发文件系统驱动。windows的pc机上以过滤驱动居多。其目的不外乎有以下几种: 一是用于防病毒引擎。希望在系统读写文件的时候,捕获读写的数据内容,然后检测其中是否含有病毒代码。 二是用于加密文件系统,希望在文件写过程中对数据进行加密,在读的过程中进行解密。 三是设计透明的文件系统加速。读写磁盘的时候,合适的cache算法是可以大大提高磁盘的工作效率。windows本身的cache算法未必适合一些特殊的读写磁盘操作(如流媒体服务器上读流媒体文件)。设计自己的cache算法的效果,我已在工作中有所感受。 如果你刚好有以上此类的要求,你可以阅读本教程。(I often encounter online request peer file system driver development. Windows on the pc-driven mostly to filter. Its goal : There are several : First, for the anti-virus engine. Hope for writing the document, read and write data capture, which then detected the presence of the virus code. Two documents for encryption systems in the hope that the process of writing papers for data encryption, in the course of time deciphering. Three is to design a transparent file system accelerated. The disk read and write when appropriate cache algorithm can greatly improve the efficiency of disk. Windows itself to the cache algorithm may not be suitable for some special disk read and write operations (such as streaming media server time streaming media). The cache design algorithm results, I have some wo)
- 2005-06-13 20:12:26下载
- 积分:1
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汽车8自由度simulink模型
汽车8自由度simulink模型仿真,适合研究生,可进行各种汽车动力学及其仿真研究工作(8-DOF Simlink Model of Automobile)
- 2018-11-25 12:52:05下载
- 积分:1
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XC2xxx_Body_Applications
英飞凌INFINEON开发板资料,学习英飞凌的好资料(INFINEON answers development board material, study the good material answers)
- 2012-03-23 15:43:22下载
- 积分:1