Abstract: Many modern industrial, medical, and commercial applications require temperature measurements in the extended temperature rangewith accuracies of ±0.3°C or better, performed with reasonable cost and often with low power consumption. This article explains how platinumresistance temperature detectors (PRTDs) can perform measurements over wide temperature ranges of -200°C to +850°C, with absolute accuracyand repeatability better than ±0.3°C, when used with modern processors capable of resolving nonlinear mathematical equation quickly and costeffectively. This article is the second installment of a series on PRTDs. For the first installment, please read application note 4875, "High-Accuracy Temperature Measurements Call for Platinum Resistance Temperature Detectors (PRTDs) and Precision Delta-Sigma ADCs."
上傳時間： 2013-11-06
上傳用戶：WMC_geophy
基于通用集成運算放大器，利用MASON公式設計了一個多功能二階通用濾波器，能同時或分別實現低通、高通和帶通濾波，也能設計成一個正交振蕩器。電路的極點頻率和品質因數能夠獨立、精確地調節。電路使用4個集成運放、2個電容和11個電阻，所有集成運放的反相端虛地。利用計算機仿真電路的通用濾波功能、極點頻率和品質因數的獨立控制和正交正弦振蕩，從而證明該濾波器正確有效。 Abstract: A new multifunctional second-order filter based on OPs was presented by MASON formula. Functions， such as high-pass， band-pass， low-pass filtering， can be realized respectively and simultaneously， and can become a quadrature oscillator by modifying resistance ratio. Its pole angular frequency and quality factor can be tuned accurately and independently. The circuit presented contains four OPs， two capacitors， and eleven resistances， and inverting input of all OPs is virtual ground. Its general filtering， the independent control of pole frequency and quality factor and quadrature sinusoidal oscillation were simulated by computer， and the result shows that the presented circuit is valid and effective.
上傳時間： 2013-10-09
上傳用戶：13788529953
學習資料，關于C++的，Addison.Wesley寫的Effective.&.More.Effective.C
標簽：
上傳時間： 2014-01-11
上傳用戶：sjyy1001
亞馬遜網上書店、巴諾書店最佳暢銷書《最后期限》 湯姆·迪馬可（Tom DeMarco）是大西洋系統行會（www.atlsysguild.com）的負責人之一，同時他也是多塞特家族出版社的三本暢銷書（《人件》（將于今年4月在清華大學出版社引進出版），與蒂姆·利斯特合著的《軟件藝術的狀態》（Software State-of-the-Art），以及《為何軟件開銷那么大？》（Why Does Software Cost So Much?）和一套基礎培訓錄像（與蒂姆·利斯特合作的《高產團隊》）的作者。
標簽： atlsysguild DeMarco Tom www
上傳時間： 2013-12-24
上傳用戶：ZJX5201314
制作本書的目的是為了方便大家的閱讀。轉載時請保持本電子書的完整性。 前言、條款2、16、21、44根據從Addison-Wesley出版社下載的開放條款翻譯。條款26、27、28、45根據從Scott Meyers的網站下載的《Three Guidelines for Effective Iterator Usage》一文翻譯。條款43根據從C/C++ Users Journal網站下載的《STL Algorithms vs. Hand-Written Loops》一文翻譯，條款45根據從C/C++ Users Journal網站下載的《Distinguishing STL Search Algorithms》一文翻譯。其余部分根據epubcn放出的電子書制作。
標簽： Addison-Wesley 家 保持
上傳時間： 2015-04-12
上傳用戶：jing911003
prolog 找路例子程序： === === === === === === Part 1-Adding connections Part 2-Simple Path example | ?- path1(a,b,P,T). will produce the response: T = 15 P = [a,b] ? Part 3 - Non-repeating path As an example, the query: ?- path2(a,h,P,T). will succeed and may produce the bindings: P = [a,depot,b,d,e,f,h] T = 155 Part 4 - Generating a path below a cost threshold As an example, the query: ?- path_below_cost(a,[a,b,c,d,e,f,g,h],RS,300). returns: RS = [a,b,depot,c,d,e,g,f,h] ? RS = [a,c,depot,b,d,e,g,f,h] ? no ==================================
標簽： Part connections example prolog
上傳時間： 2015-04-24
上傳用戶：ljt101007
Software Testing, Second Edition provides practical insight into the world of software testing and quality assurance. Learn how to find problems in any computer program, how to plan an effective test approach and how to tell when software is ready for release. Updated from the previous edition in 2000 to include a chapter that specifically deals with testing software for security bugs, the processes and techniques used throughout the book are timeless. This book is an excellent investment if you want to better understand what your Software Test team does or you want to write better software.
標簽： practical Software provides software
上傳時間： 2015-04-30
上傳用戶：bjgaofei
有效使用STL迭代器ITERATOR的三條基本原則，是C/C++ Users Journal摘錄的Effective STL的三個獨立條款
上傳時間： 2014-01-02
上傳用戶：ardager
Linphone is a web phone: it let you phone to your friends anywhere in the whole world, freely, simply by using the internet. The cost of the phone call is the cost that you spend connected to the internet.
標簽： phone Linphone anywhere friends
上傳時間： 2015-05-04
上傳用戶：牛布牛
自制51編程器 I have build my own programmer. This device can program the AT89C51 and works with it. So it can easily be adapted to programming other devices by itself. The Atmel Flash devices are ideal for developing, since they can be reprogrammed easy, often and fast. You need only 1 or 2 devices in low cost plastic case for developing. In contrast you need 10 or more high cost windowed devices if you must develop with EPROM devices (e.g. Phillips 87C751).
標簽： programmer program device build
上傳時間： 2015-05-11
上傳用戶：sdq_123
