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BOOK_J2EE
This is a interview targeted book on Java J2EE for prospective people. This book details out genral questions asked during interview processes
- 2009-10-21 03:19:57下载
- 积分:1
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1
说明: 单片机在燃料电池监控系统中的应用,详细讲解,可用于毕业论文(Single-chip in the fuel cell monitoring system, explained in detail, can be used for thesis)
- 2009-03-29 16:08:04下载
- 积分:1
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eum
介绍枚举与结构体,希望对大家使用有所帮助,提高编程能力(Introduction enumeration and structure, we hope to help you use, improve programming ability)
- 2017-03-02 16:54:41下载
- 积分:1
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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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HVAC_Graduation
暖通空调毕业设计,本资源是一个毕业设计,代码和论文正文都包括!(HVAC graduation, this resource is a graduate design, code and text papers are included!)
- 2010-06-11 10:17:52下载
- 积分:1
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FWMain
说明: 这是一个程序的一般架构方法,包含内存管,单件,模板应用,消息传递,等等,许多内容(This is a general framework of procedures, including memory management, a single, template applications, messaging, and so on, many elements)
- 2005-11-29 15:48:59下载
- 积分:1
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5.-Whitney-Elements
This book is the second volume in the Academic Press Electromagnetism Series, written by Professor Alain Bossavit, one of the most active
researchers in the area of electromagnetic field calculations
part 5
- 2011-12-16 23:56:36下载
- 积分:1
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sg247442
Getting Started with Tivoli Dynamic Workload Broker Version 1.1
- 2012-06-11 10:35:32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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Three-phase-grid-independent
三相并网独立双模式逆变器控制研究,有详细的计算和设计说明(Three-phase grid-independent dual-mode inverter control study)
- 2013-03-13 20:35:12下载
- 积分:1