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Measuring

测量是按照某种规律,用数据来描述观察到的现象,即对事物作出量化描述。测量是对非量化实物的量化过程。
  • 运算放大器稳定时间的测量

    The AN10 begins with a survey of methods for Measuring op amp settling time. This commentary develops into circuits for Measuring settling time to 0.0005%. Construction details and results are presented. Appended sections cover oscilloscope overload limitations and amplifier frequency compensation.

    标签: 运算放大器 稳定时间 测量

    上传时间: 2013-11-14

    上传用户:JIMMYCB001

  • Bing is a point-to-point bandwidth measurement tool (hence the b ), based on ping. Bing determines t

    Bing is a point-to-point bandwidth measurement tool (hence the b ), based on ping. Bing determines the real (raw, as opposed to available or average) throughput on a link by Measuring ICMP echo requests roundtrip times for different packet sizes for each end of the link

    标签: Bing point-to-point measurement determines

    上传时间: 2015-09-15

    上传用户:lgnf

  • There are many different (and often confusing) terms associated with clock-based devices. This appl

    There are many different (and often confusing) terms associated with clock-based devices. This application note attempts to clarify these terms, and hence serves as a comprehensive reference on clock terminology. This application note can be divided into two sections. The first section describes and distinguishes between various clock sources available today. The second section defines and distinguishes between various parameters used to describe clocks. This section also provides methods of Measuring some of these parameters.

    标签: clock-based associated different confusing

    上传时间: 2015-12-02

    上传用户:sssl

  • water temperature control system uses the Single Chip Microcomputer to carry on temperature real-tim

    water temperature control system uses the Single Chip Microcomputer to carry on temperature real-time gathering and controling. DS18B20, digitized temperature sensor, provides the temperature signal by "a main line". In -10~+85℃ the scope, DS18B20’s inherent Measuring accuracy is 0.5 ℃. The water temperature real-time control system uses the electricity nichrome wire carring on temperature increiseament and operates the electric fan to realize the temperature decrease control. The system has the higher Measuring accuracy and the control precision, it also can complete the elevation of temperature and the temperature decrease control.

    标签: temperature Microcomputer real-tim control

    上传时间: 2015-12-10

    上传用户:nairui21

  • A new cable fault location method based on wavelet reconstruction is proposed. In this method the

    A new cable fault location method based on wavelet reconstruction is proposed. In this method the difference between the currents of faulty phase and sound phase under the high voltage pulse excitation is used as the measured signal and is decomposed in multi-scale by wavelet transform, then reconstructed in single scale. Comparing with traditional fault location method by travelling wave, the presented method will not be interfered by the reflected wave from the branch joint of cables or from other positions where the impedances are not matched and not be influenced by fault types, otherwise, the reflected waves can be recognized even the faulty position is near to the Measuring terminal, at the same time, the influence of the wave speed uncertainty can be reduced. The correctness of the proposed method is proved by simulation results.

    标签: method reconstruction location proposed

    上传时间: 2016-02-04

    上传用户:maizezhen

  • A digital fi‘equeney meter designed with FPGA development software Q-~us 11 is introduced.The 1 Hz—l

    A digital fi‘equeney meter designed with FPGA development software Q-~us 11 is introduced.The 1 Hz—l MHz input measured pulse signals of the digital ii‘equency meter can be used for Measuring frequency,period,pulse width and duty ratio,etc.The test results stably display O71 3 seven—segment numeric tubes,and the Measuring ranges may be switched over automatically.The Measuring error is equal to or less than 0.1%.

    标签: development introduced designed software

    上传时间: 2016-04-09

    上传用户:stewart·

  • The task of clustering Web sessions is to group Web sessions based on similarity and consists of max

    The task of clustering Web sessions is to group Web sessions based on similarity and consists of maximizing the intra- group similarity while minimizing the inter-group similarity. The first and foremost question needed to be considered in clustering W b sessions is how to measure the similarity between Web sessions.However.there are many shortcomings in traditiona1 measurements.This paper introduces a new method for Measuring similarities between Web pages that takes into account not only the URL but also the viewing time of the visited web page.Yhen we give a new method to measure the similarity of Web sessions using sequence alignment and the similarity of W eb page access in detail Experiments have proved that our method is valid and e币cient.

    标签: sessions clustering similarity Web

    上传时间: 2014-01-11

    上传用户:songrui

  • This chapter contains sample programs for determining capacity. The reader is advised to go through

    This chapter contains sample programs for determining capacity. The reader is advised to go through the coding. The file "capacity_water.m" is for Measuring the waterfilling capacity. It should be made to work with a file similar to "capacity_plot_main.m". The latter file deals with all the other capacity plots given in the book in Chapter 2. All programs are verified with MATLAB versions 6.0 and above with signal processing and communications toolboxes.

    标签: determining capacity contains programs

    上传时间: 2016-08-24

    上传用户:yph853211

  • 项目描述: EMC is software that implements real-time control of equipment such as machine tools, robots

    项目描述: EMC is software that implements real-time control of equipment such as machine tools, robots, and coordinate Measuring machines. It runs in real-time under Linux with the NMT rtlinux patch, and in nonrealtime under Solaris, and WindowsNT. EMC 是一个设备的实时控制软件,可以控制机器工具,机器人,协调式的测量机器。它可以实时在带有NMT补丁的Linux下运行,可以在Solaris, 和WindowsNT下可非实时运行。

    标签: implements equipment real-time software

    上传时间: 2016-12-28

    上传用户:wl9454

  • 2.Uniformity / Contrast Software(Ca200Sample_Contrast.exe) provides Measurement of uniformity fo

    2.Uniformity / Contrast Software(Ca200Sample_Contrast.exe) provides Measurement of uniformity for chromaticity, luminance etc. and contrast. Measuring points are 3x3 or 5x5 spots (CA210样本程序)

    标签: Sample_Contrast Measurement Uniformity uniformity

    上传时间: 2014-01-16

    上传用户:无聊来刷下