Frequently, voltage reference stability and noise defi nemeasurement limits in instrumentation systems. In particular,reference noise often sets stable resolution limits.Reference voltages have decreased with the continuingdrop in system power supply voltages, making referencenoise increasingly important. The compressed signalprocessing range mandates a commensurate reductionin reference noise to maintain resolution. Noise ultimatelytranslates into quantization uncertainty in A to D converters,introducing jitter in applications such as scales, inertialnavigation systems, infrared thermography, DVMs andmedical imaging apparatus. A new low voltage reference,the LTC6655, has only 0.3ppm (775nV) noise at 2.5VOUT.Figure 1 lists salient specifi cations in tabular form. Accuracyand temperature coeffi cient are characteristic ofhigh grade, low voltage references. 0.1Hz to 10Hz noise,particularly noteworthy, is unequalled by any low voltageelectronic reference.
標簽：
低噪聲
電壓基準
噪聲測量
上傳時間：
2013-10-30
上傳用戶：wxhwjf
項目描述: Env_audit is a program that ferrets out everything it can about the environment. It looks for process IDs, UID, GID, signal masks, umask, priority, file descriptors, and environmental variables. It comes with test configurations for anacron, apache, atd, crond, GDB, inittab, logrotate, PHP, pppd, procmail, rsh, rxvt, sendmail, SSH, stunnel, sudo, xinetd, and xterm. env_audit是一個搜索有關環境的所有東西的程序。它查詢進程IDs，UID, GID,信號掩碼，umask,優先權，文件描述符，和環境變量。它提供了用于anacron, apache, atd, crond, GDB, inittab, logrotate, PHP, pppd, procmail, rsh, rxvt, sendmail, SSH, stunnel, sudo, xinetd, 和xterm的測試配置。 類別: Development Status: 5 - Production/stable Environment: Console (Text Based) Intended Audience: System Administrators License: GNU General Public License (GPL) Operating System: POSIX Topic: Security
標簽：
environment
everything
Env_audit
ferrets
上傳時間：
2013-12-02
上傳用戶：qweqweqwe
Securing Apache 2: Step-by-Step
When choosing a web server, Apache very often wins against its competitors because of stability, performance, that fact that it s open source, and many other advantages. But when deciding on which version of Apache to use, the choice is not always so simple. On the one hand there is a very popular, stable version used by millions of users, version 1.3, and on the other hand, there is an enhanced and re-designed version 2.0.
標簽：
Apache
Step-by-Step
Securing
choosing
上傳時間：
2015-09-06
上傳用戶：gundamwzc
Linux in a Nutshell, 5th Edition
By Stephen Figgins, Robert Love, Arnold Robbins, Ellen Siever, Aaron Weber
... ... ... ... ... ... ... .....
Publisher: O Reilly
Pub Date: July 2005
ISBN: 0-596-00930-5
Pages: 944
Over the last few years, Linux has grown both as an operating system and a tool for personal and business use. Simultaneously becoming more user friendly and more powerful as a back-end system, Linux has achieved new plateaus: the newer filesystems have solidified, new commands and tools have appeared and become standard, and the desktop--including new desktop environments--have proved to be viable, stable, and readily accessible to even those who don t consider themselves computer gurus.
標簽：
Nutshell
Edition
Figgins
Stephen
上傳時間：
2015-12-03
上傳用戶：frank1234
